Category: Blog

If your old gas ducted heating system has stopped working and is more than 15 years old, replacing the unit is usually a smarter financial decision than repairing it.

When a heater breaks down in the middle of a Melbourne winter, you need to make a fast decision. A repair might seem like the cheapest option today. However, sinking hundreds of dollars into a failing gas system often leads to more breakdowns, higher gas bills, and potential safety risks.

This guide explains exactly how to evaluate your existing ducted setup. By looking at the age of your unit, the type of fault, and your recent energy bills, you can decide whether to book a repair or invest in a gas ducted heating replacement.

The 15-Year Rule for Gas Heating Systems

Every gas appliance has a safe operational lifespan. For ducted heating systems, the lifespan is generally 15 to 20 years.

The core component of your heater is the heat exchanger. This metal chamber holds the combustion flames and heats the air before it is pushed into your home. Over years of expanding and contracting with extreme heat, the metal stresses and eventually cracks. Once a heat exchanger cracks, the heater is permanently unsafe to use because it can leak carbon monoxide directly into your ductwork.

If your heater is approaching the 15-year mark and requires a major component replacement like a fan motor or an ignition control board, the repair is rarely worth the money. You might spend $500 fixing the fan today, only for the heat exchanger to fail next winter.

Repair Scenarios: When Fixing Your Ducted Heater Makes Sense

Not every breakdown requires a full replacement. If your unit is relatively new, a targeted repair is the logical choice. You should opt to repair your heater if:

• The unit is under 10 years old. Most modern heaters are built to last well beyond a decade.
• The repair is minor. Issues like a faulty thermostat, a dirty flame sensor, or a blown fuse are standard wear-and-tear problems. They can be fixed quickly in a single visit.
• Your gas bills have remained stable. If the heating works efficiently and the heating capacity still matches your home’s layout, keeping it active makes sense.
• The heat exchanger is intact. As long as a licensed gasfitter confirms the heat exchanger is completely sealed and safe, the core of your unit is still viable.

Five Clear Signs You Need a Gas Ducted Heating Replacement

If your system falls outside the repair parameters, you need to look for the physical warning signs of a failing unit. Based on our recent diagnostic calls across Melbourne’s north-west, here are five indicators that your heater needs to be replaced.

1. The unit is past its safe operational lifespan

Age is the biggest factor in heating failures. Older gas units simply stop performing. We recently visited a property in Seymour where the homeowner was relying on a gas central heater that was over 30 years old. It was incredibly inefficient, noisy, and struggled to warm the home. We removed the outdated system and installed a modern Braemar 25kw unit. The homeowner noticed an immediate difference in daily comfort and operational volume. If you do not know how old your heater is, check the compliance plate on the side of the unit or look up the brand and model number.

2. A yellow pilot light or suspected carbon monoxide leaks

A healthy gas flame should burn crisp and blue. If your pilot light or burners are burning yellow, orange, or producing soot, the natural gas is not combusting properly. This is a severe warning sign.

Improper combustion creates carbon monoxide. Carbon monoxide is invisible, has no smell, and is highly dangerous. We recently responded to an urgent call in Sunbury where an old gas ducted heating unit, specifically an aging Brivis ducted heater, had failed entirely. Our inspection revealed a cracked heat exchanger. Because a crack allows carbon monoxide to mix with the air blown into the house, repairing the unit was not an option. We safely disconnected the old unit and replaced it with a Braemar TQ320 in-ceiling system.

3. Rising gas prices and higher bills for the same heat

Heaters lose their efficiency as they age. Burners clog, fans slow down, and internal components wear out. This forces the system to burn more gas to reach the temperature set on your thermostat. If your winter gas bills are noticeably higher than they were three years ago, your home heating is wasting energy.

A homeowner in Wallan contacted us because their 25-year-old existing gas system was running constantly but failing to heat the house. The efficiency had dropped so low that the unit was costing a small fortune to run. We replaced it with an energy-efficient heating unit from Braemar. The new ducted heating installation uses significantly less gas to produce a better result.

4. Strange noises and major electrical faults

Gas heaters should operate with a steady, consistent hum. If you hear loud banging, screeching, or rattling when the system turns on, the internal fan motor or bearings are likely failing.

Electrical faults are another clear indicator that a unit is finished. In East Croydon, we inspected a ducted gas heater that kept tripping the home’s power supply before shutting down completely. Power surges had caused fusion damage to the heater’s main control board. Sourcing a replacement board for an old heating system is difficult and expensive. The safest solution was to remove the damaged system and install a new gas ducted heater with a fresh five-year warranty.

5. Uneven heating and poor airflow

If some rooms in your house are freezing while others are boiling, your heating or cooling system is struggling. While this can sometimes point to collapsed or rodent-damaged ductwork, it is often a sign that the fan motor is no longer strong enough to push air to the furthest points of your house. If a licensed plumber confirms your ducted air vents are in good condition, the main heating unit is the likely culprit.

Should You Convert Gas Ducted Heating to Electric?

With a push to reduce gas emissions and lower running costs, many Melbourne homeowners are moving from gas to electric. If you are looking for a replacement for gas ducted heating, choosing to convert gas ducted heating to an electric system can be a smart long-term investment.

Options like reverse cycle ducted air conditioning or a multi-head split system provide both heating and cooling from one unit. Upgrading your old ducted gas to an electric heating and cooling setup often qualifies you for a government rebate under Victorian energy upgrades. When you replace your ducted unit with a reverse cycle heating system, you gain an energy-efficient heating and cooling solution that moves your property completely off traditional gas.

The Real Cost of Keeping an Old Ducted Heater Alive

Homeowners often hesitate because they are worried about the ducted heating replacement cost. However, maintaining an obsolete central heating setup carries hidden financial burdens.

First, older heaters have lower energy efficiency ratings. A system installed 20 years ago might only operate at a 3-star efficiency level, meaning a large percentage of the gas you buy is wasted through the exhaust flue. Modern replacement units from top ducted heating brands offer up to 7-star ratings.

Second, replacement costs for discontinued models are heavily marked up. If a manufacturer stopped making your heater 15 years ago, finding a compatible fan motor requires sourcing aftermarket parts.

Finally, older heaters require more frequent servicing to remain safe. You will spend more money verifying the safety of an old gas ducted system than you would maintaining a new one.

What to Expect from a Modern Heating and Cooling Replacement

If you decide to replace your system, the process is straightforward and provides immediate benefits:

• Better Warranties: New ducted systems come with extensive protection. For example, the Braemar TQ320 includes a 10-year warranty on the heat exchanger.
• Quieter Operation: Advances in fan technology and cabinet insulation mean modern units run significantly quieter than old ducted models.
• Exact Sizing: Homes change over time. A replacement gives your plumber the chance to calculate your exact kilowatt requirements, ensuring you get the right heating capacity for your current floor plan.

How the Ducted Heating Installation Works

When you book a gas ducted heating installation or an electric replacement with a licensed professional, the job usually takes less than a day.

• Site Inspection: The plumber assesses your current unit, measures your existing ductwork, and checks your gas line sizing.
• Clear Pricing: You receive a fixed-price quote outlining the exact model and the labour costs.
• Safe Removal: The old system is isolated from the gas and electricity supply, disconnected, and safely removed.
• Installation and Testing: The new system is secured in place and connected to your full ducted network. The plumber performs comprehensive electrical and gas safety checks to ensure the thermostat communicates correctly with the unit.
• Compliance and Handover: The site is cleaned, the old gas unit is taken away for disposal, and you receive a compliance certificate proving the work meets all legal standards.

Make the Right Call for Your Home Heating Needs

You do not have to guess whether your heater is safe or efficient. If you are dealing with cold spots, rising bills, or an unreliable system, get a professional assessment. A licensed gasfitter can test your heat exchanger, measure your carbon monoxide levels, and give you a clear breakdown of repair costs versus a ducted heating unit replacement.

Not sure if your heater has another winter left in it? Book a $79 Heater Check to get an honest assessment. Our technicians will provide a full report on your unit’s condition with zero pressure.

If you already know your system has failed completely, explore our heating services to see how we manage emergency gas ducted heating replacement Melbourne-wide. We supply the best heating units, deliver upfront pricing, and back every installation with a lifetime workmanship guarantee.

Replacing or installing a new ducted gas heating system is a major household investment. When your current gas heater breaks down in the middle of a Melbourne winter, you need to know exactly what you are up for financially. Homeowners often ask us just how much ducted heating costs to install. You do not want vague estimates, and you certainly do not want hidden costs appearing on the final invoice.

The short answer is that the cost of a ducted heating installation depends entirely on the scope of the work.

If you are simply replacing an old heater unit with a new one of a similar size, a standard ducted heating replacement cost can range between $2,200 and $4,500.

If you are installing a completely new central heating system from scratch, or if your old ductwork has degraded, the total cost will generally fall between $4,500 and $8,000. For large, multi-storey homes requiring complex zoning and premium 6-star energy heating units, the price can extend beyond $9,000.

Those are the broad numbers. To understand exactly where your home fits into that price range, you need to look at the factors that influence the cost of materials and labour. Here is a breakdown of exactly what you are paying for when you upgrade your home heating system.

Unit Replacement vs. Full Ducted Heating Installation

The biggest factor in your quote is whether we can safely use your existing infrastructure.

A ducted heating unit replacement involves removing your old equipment from the roof or under the floor and connecting a brand new unit to your existing gas line, electrical connection, thermostat, and ductwork. Because the heavy lifting of installing pipes and vents is already done, the labour costs are much lower. A changeover can usually be completed by our technicians in half a day.

A full system replacement is a different story. If your gas ducted heating system is 20 years old, there is a very high chance your ductwork is in poor condition. Over time, flexible ducting can collapse, plastic linings can tear, and rodents often chew through the insulation.

If we connect a highly efficient new ducted gas heating system to ripped ductwork, you will end up pumping expensive warm air straight into your roof cavity or under your house. In these cases, we have to strip out the old ducting, take it away for disposal, and install new, highly insulated ducts. This requires more materials and significantly more time, which directly impacts the cost to install ducted heating.

Energy Star Ratings: Upfront Price vs. Running Costs for Ducted Gas

When choosing a new unit, you will notice they are rated anywhere from 3 stars to 6 stars for energy efficiency. The star rating has a massive impact on the purchase price.

A 3-star ducted heating unit is the most affordable option upfront. These units use older, simpler technology. They are reliable and will absolutely keep your house warm, but they consume more gas to generate that heat. If you are on a strict budget, or if you are installing a heater in a rental property or a home you plan to sell soon, a 3-star unit is a sensible, cost-effective choice.

A 6-star system costs significantly more to purchase. These units are more expensive because they use advanced condensing technology. They capture the heat from the exhaust gases that would normally be wasted and recycle it back into your home.

While you face a higher upfront cost on the day of installation, a 6-star unit uses far less lpg or natural gas. If you plan to live in your home for the next ten to fifteen years, the reduction in your annual running costs for ducted gas heating will typically pay for the difference in the purchase price. When providing a quote, a quality gas heating installation company will help you calculate ducted gas heating running estimates so you can choose the best fit for your budget.

The Size of Your Home and Heating Capacity

Heaters are sized by kilowatt output. A small unit designed to warm a compact three-bedroom home in Diggers Rest might only need a 14kW heating unit. A large unit designed for a sprawling two-storey home in Sunbury might require a 30kW capacity to ensure the coverage that a ducted heating layout demands.

It is necessary to get this sizing right. If a plumber quotes you for a unit that is too small for your floor plan, the heater will run continuously trying to reach the set temperature. This wears out the internal components prematurely and drives your gas bill through the roof. If the unit is too large, it will short-cycle, turning on and off rapidly, which is equally bad for the machinery. A proper quote involves measuring your rooms and calculating the exact output required.

Zoning Your Heating and Cooling Systems

If you are installing new heating and cooling systems, you have the option to divide your home into different zones. For example, you might want a day zone for the living areas and a night zone for the bedrooms.

The ability to zone your heating saves you money on the costs to run ducted heating because you do not have to warm empty rooms. Strategic zoning is one of the best ways to reduce ducted gas heating running expenses over time. However, setting up zones increases the initial price. We have to install motorised dampers inside the ductwork to control the airflow, run additional low-voltage wiring, and set up a more advanced controller. Upgrading from a basic manual wall switch to a smart, programmable touchscreen system will also add a few hundred dollars to your quote.

When evaluated compared to other heating options, such as electric ducted systems, a split system, or a ducted reverse-cycle electric heating setup, the comfort of ducted gas heating remains incredibly popular in Australia because it provides fast, whole-home warmth without the harsh, dry air of a standard air conditioning system.

Gas Line and Infrastructure Upgrades

Modern efficient gas appliances often require a higher volume of fuel to operate correctly compared to units built in the 1990s.

During an inspection, licensed gas fitters must check the size of the gas pipe running from your street meter to the heater location. If your existing pipe is too narrow, the new ducted gas heater will be starved of fuel and will fail to ignite properly. Upgrading a gas line involves running new copper or composite pipe under your home or through your roof space. This is a strict safety and compliance requirement, but it will affect the cost of a ducted gas upgrade.

Repair vs. Replace Your Ducted Heating

Homeowners often ask us if they can just repair their existing ducted heating equipment to save money. Sometimes, a simple fix is the smart choice. If a relatively modern unit has a faulty ignition sensor or a blown capacitor, we can swap the part for a few hundred dollars and get the system running perfectly again.

However, there are times when spending money on a repair is a bad financial decision. If your heater is more than 15 years old and the main fan motor has burnt out, replacement parts are often expensive or entirely obsolete.

More importantly, if your plumber discovers a cracked heat exchanger, the unit must be condemned immediately. A cracked heat exchanger allows deadly carbon monoxide to leak into the air stream and enter your living room. Heat exchangers cannot be safely patched. In this scenario, replacing the entire heater is the only legal and safe option. Sinking money into a dying system is a false economy. This is often the ideal time to consider reliable gas heating systems from Bonaire, Brivis ducted heating, or a premium Braemar unit.

The Danger of the Unusually Cheap Quote

When you gather quotes for a new system, you might find one price that is drastically lower than the others. It is highly recommended that you look closely at what that contractor is actually offering.

In the plumbing industry, a price that looks too good to be true usually means corners are being cut.

Some operators lower their prices by using cheap, imported ductwork with very thin insulation. This means the heat escapes into your roof before it ever reaches your vents. Others will save time by reusing old, damaged roof flashing, which virtually guarantees you will suffer a roof leak during the next heavy rainstorm.

You also need to check if the cheap quote includes the removal and ethical disposal of your old equipment, or if the contractor intends to leave a rusted metal box sitting in your front yard.

Finally, ensure the quote includes a compliance certificate from the Victorian Building Authority. This certificate is your legal proof that a professional installed the appliance safely and to the required state standards.

The Speedy Services Today Approach to Pricing

At Speedy Services Today, we know that upgrading your heating is stressful enough without worrying about shady pricing tactics. That is why we operate on a strict policy of upfront pricing.

When you call us for a replacement in Melbourne’s North West, we send a licensed plumber to your home to assess your specific needs. We inspect your existing ductwork, check your gas line sizing, and measure your rooms.

We then sit down with you and provide a clear, fixed-price quote before any work begins. The price we quote is the price you pay. There are no sudden fees for extra piping, no surprise disposal charges, and no hidden labour costs. Every installation we complete is fully certified, safely tested for carbon monoxide, and backed by our lifetime workmanship guarantee.

You deserve a warm home and an honest price.

Get an exact, no-obligation quote for your home today. We offer upfront pricing with zero hidden fees. Visit our Gas Ducted Heating Services page to book your local inspection.

Opening a quarterly bill from Greater Western Water or Yarra Valley Water to find a balance hundreds of dollars higher than usual is a sharp shock. You know your household routines have not changed. There are many reasons your water bill might be higher than usual, but the most common are easy to identify. You have not filled a swimming pool, and you have not left a garden hose running for a week. Yet, the numbers on the page demand payment for tens of thousands of litres of unexplained water use and water consumption.

Before you assume the water authority made a reading error, you need to rule out the physical realities of your plumbing system. A sudden spike in your water or an unusually high increase in water usage can be the first sign, and it usually points to one of two specific problems. You either have a constantly running toilet, or you have an underground pipe leak. Both result in significant water wastage, increased water usage, and water loss, quietly draining thousands of litres, running day and night without flooding your floors.

Because water bills arrive every three months, a hidden leak has 90 days to drive up your costs before you even realise it exists. The good news is that you can diagnose the source of the problem yourself in about 15 minutes. To monitor your water usage over time, check your meter readings each month, using nothing more than your water meter and a bottle of food colouring.

This guide covers exactly how to check for leaks on your property, learn why your water bill is higher, when to call a professional, and how to apply for financial relief from your water provider once the repair is complete. how to check for leaks on your property, learn why your water bill is higher, and when to call a professional,

The 15-Minute Water Meter Test

Your water meter is the single most accurate diagnostic tool on your property. It records every drop of water that passes from the street main into your home plumbing system. If water is moving through the meter while every tap in the house is turned off, you have a confirmed leak.

To perform the meter test, follow these steps exactly:

1. Turn off all water sources

Ensure nobody in the house is taking a shower or washing their hands. Turn off the washing machine and the dishwasher. Check outside and ensure all garden hoses, irrigation systems, and automated sprinklers are completely shut off.

2. Locate your water meter

In Victoria, the water meter is typically located right at the front boundary of your property. Look for a metal or plastic box sitting slightly above ground level, often positioned near a front garden tap or alongside the driveway. Lift the protective flap to view the dials.

3. Understand the dials

Modern meters have a row of numbers. The black numbers represent kilolitres (thousands of litres) and are used by the water authority for your billing. The red numbers represent single litres. Some older meters use a series of small, rotating red dials instead of digital-style red numbers to track single litres.

4. Record the exact reading

Take a clear photograph of the meter face with your phone. Alternatively, write down every single number, paying close attention to the position of the red numbers or red dials.

5. Wait 15 to 30 minutes

Leave the meter alone and wait. This is the most critical part of the test. You must ensure absolutely no water is intentionally used during this waiting period. Do not flush a toilet, wash a cup, or run a tap for even a second.

6. Check the meter again

Return to the meter and compare the current reading to your photograph or notes. If the red numbers have ticked over, or if the red dials have changed position, water is escaping your system.

If you find your water meter is damaged or leaking, don’t try to force the valve closed yourself. Our team regularly handles fast water meter repairs in Kilmore and other local areas, and can coordinate safely with your local water authority to get it fixed without fuss.

If the numbers moved only a fraction, you have a slow leak. If you open the meter box and immediately see the dials spinning rapidly while the house is quiet, you are losing a massive amount of water and need to act quickly.

Checking for Silent Toilet Leaks

If your meter test confirmed a leak, your very first suspect should be the toilet. A continuously running toilet is the most common cause of high water bills.

Because the leaking water flows directly from the cistern down the internal overflow tube and into the sewer, it never spills onto the bathroom floor. You will not see water damage, and you often will not hear it running unless the house is perfectly quiet. A worn-out toilet seal can silently waste thousands of litres of water a quarter.

You can expose a silent toilet leak using a basic pantry item.

The Food Colouring Test

1. Remove the lid from your toilet cistern (the tank at the back).
2. Squeeze a few drops of dark food colouring into the water inside the tank.
3. Replace the lid and wait 15 minutes. Do not flush the toilet during this time.
4. Look into the toilet bowl.

If tinted water has seeped down into the clear bowl, the internal mechanisms of your cistern have failed. If your toilet is constantly hissing or trickling into the bowl, you need the internal seals or the whole cistern replaced. We recently completed an emergency toilet leak repair in Gisborne where failed seals were letting water constantly escape. Fixing it immediately stops the leak and protects your water bill.

Depending on the age and brand of the toilet suite, you might need a few basic replacement parts or a complete leaking toilet repair to stop the continuous flow permanently. If you have multiple bathrooms, make sure you test every toilet in the house.

Other Common Causes of a High Water Bill

Look closely at your hot water system. These units have a pressure temperature relief valve (PTR valve) on the side of the tank, with a drain pipe running to the ground. If the valve is stuck open and water is continuously trickling down the drain pipe, it will lead to higher water bills and drain both your water supply and your electricity bill.

Check every garden tap, especially those hidden behind bushes or out of daily sight. A garden tap left slightly open or dripping heavily into soft soil can run for weeks unnoticed, slowly saturating the ground and driving up the meter reading.

Inside the house, people often underestimate how much water a dripping tap wastes. A tap that drips 10 times a minute wastes roughly 1,400 litres of water per year, which is significant water waste you can stop with a simple repair. Tightening it as hard as you can won’t help if the internal spindles are worn. If you have a stubborn drip, it might be time for a leaking tap repair or full fixture upgrade, like this recent job we completed in Kilmore.

Signs of an Underground Pipe Leak Causing a High Water Bill

If the toilets are sealed, the taps are dry, the hot water system is functioning correctly, and the water meter is still slowly ticking over, the fault lies entirely out of sight. You almost certainly have an underground pipe leak.

If your meter is spinning but the inside of your house is completely dry, you likely have a leak in the mains pipe running under your garden or driveway. Recently, we helped a Sunbury homeowner who noticed water bubbling up in their front yard from a burst underground pipe. If left unchecked, underground leaks like this will add hundreds of dollars to your water bill.

The water main runs from the street meter under your front lawn, beneath concrete paths or driveways, and connects to your house. Homes in Sunbury, the Macedon Ranges, and surrounding areas are often built on highly reactive clay soils. As the seasons change, this clay expands during wet winters and contracts dramatically during hot, dry summers. This constant ground movement puts immense physical stress on buried pipes. Over time, rigid copper pipes can split, old galvanised pipes can corrode and rust through, and even flexible poly pipes can tear at the joints.

Water escaping from a buried pipe will always follow the path of least resistance. You might not see a puddle directly above the break, but you can usually spot the secondary symptoms if you know what to look for.

Walk the line between your water meter and your house and look for:

• Unexplained green patches: If one section of your front lawn is thriving and lush green while the rest of the grass is dry, that section is receiving constant underground watering from a fractured pipe.
• Soggy or spongy ground: Step firmly around your garden beds and nature strip. Soft, muddy, or sinking soil during dry weather is a clear indicator of water pooling below the surface.
• Cracked concrete and sinking pavers: Escaping water washes away the supporting dirt beneath hard surfaces. If your driveway, footpath, or brick paving has suddenly cracked or started to sink on one side, a leak might be undermining the foundation.
• A drop in water pressure: A severe break in the main supply line means water is bleeding out into the dirt before it reaches your house. You will likely notice a distinct drop in pressure when you turn on the kitchen tap or the shower.
• Hissing sounds: Stand near your water meter or near exposed pipework on the side of the house during a quiet part of the day. A pressurised leak pushing water through a narrow crack often produces a faint, continuous hissing or rushing sound.

A strict warning about underground leaks:

Do not attempt to dig up your yard to find the pipe yourself. Guessing the location of a leak often results in destroyed landscaping, ruined driveways, and hours of wasted labour. Worse, striking a pressurised water main with a heavy shovel will cause a catastrophic flood, and digging blindly risks hitting live underground electrical lines or gas mains. Leave the excavation to a licensed professional.

Why Professional Leak Detection Equipment is Required

Finding a hidden leak under a concrete driveway or a thick lawn requires precision. Water can travel along the outside of a pipe for several metres before it finally breaks the surface, meaning the wet patch on your grass is rarely located directly above the actual crack.

Instead of digging random exploratory holes across your property, leak detection plumbers use specialised technology to pinpoint the exact location of the fault.

Professionals rely on highly sensitive acoustic listening devices. By placing these acoustic tools on the ground above the suspected pipe path, a plumber can listen through layers of soil and concrete to hear the exact frequency of water escaping under pressure. By tracking the intensity of the sound, they can mark the precise location of the break down to the centimetre.

In some cases, plumbers will also use pressure testing equipment to isolate different sections of your plumbing network, proving exactly which line holds pressure and which line is compromised.

This targeted approach means the plumber only needs to dig one small, specific hole to access and repair the damaged pipe. It saves your garden from unnecessary destruction, drastically reduces the time required to complete the repair, and ultimately keeps the total cost of the job as low as possible.

Financial Relief: The Concealed Leak Allowance

Paying hundreds of extra dollars for water that just soaked into the dirt is a frustrating experience. Fortunately, local water authorities understand that underground pipe failures are entirely outside a homeowner’s control.

Both Greater Western Water and Yarra Valley Water have policies in place to help residents manage the financial shock of a hidden leak. This is typically called a Concealed Leak Allowance.

If your high bill was caused by an underground leak, you can usually apply to have your account credited for the excess water charges. To qualify for this allowance, you must follow the correct process.

First, you cannot claim the rebate if you attempt to fix the pipe yourself. The water authority requires proof that a licensed plumber located and repaired the fault to the correct Australian standards.

When your plumber finishes the repair, they will provide you with a detailed tax invoice. This invoice must state exactly where the leak was found (confirming it was concealed underground or inside a wall cavity), the date it was repaired, and confirmation that the repair meets local regulations.

You then fill out the concealed leak application form provided by your water authority, attach the plumber’s invoice, and submit the paperwork. The water authority will review your application. If approved, they will look at your historical average water usage for that specific billing period, calculate how much extra water was lost to the leak, and apply a financial credit to your account to cover the difference.

While you will still need to pay your normal average water usage costs, the allowance will strip away the massive penalty charges caused by the broken pipe.

Check for a Leak: Stop the Meter and Protect Your Home

An unexplained bill so high is never something you can ignore. If your 15-minute meter test proves that water is running while the taps are off, you are actively losing money and risking long-term structural damage to your property’s foundations.

Whether it is a silent toilet wasting water down the drain or a fractured main line flooding your front yard, fast action is the only way to stop the bill from climbing higher.

Meter still spinning when all taps are off? You have a hidden leak. Call the expert leak detection team at Speedy Services Today. We service homes across Sunbury, the Macedon Ranges, and Hume with upfront pricing and rapid response times. We will locate the fault without destroying your yard, fix the pipe permanently and save water by eliminating the loss, and provide the exact paperwork you need to claim your water bill rebate.

Call 0451 645 672 or book an appointment online to get your plumbing sorted today.

If your hot water tank is over ten years old, starting to leak from the base, or delivering completely cold water after just a few minutes, it is time for a replacement. When a traditional gas unit fails, Victorian homeowners face a clear choice. Do you install another bulky storage cylinder, or do you upgrade to a modern, wall-mounted continuous flow hot water system?

Both setups will restore your hot water, but they operate in completely different ways. The right choice depends heavily on your daily hot water usage, the layout of your property, and the current state of your gas plumbing.

Continuous flow systems are generally better if you want an endless supply of hot water and need to free up outdoor space. Storage tanks often make more sense if you want the most affordable, straightforward replacement without altering your existing pipework.

Understanding Continuous Flow Hot Water

When researching continuous flow vs storage hot water, it helps to know exactly how the technology works. Continuous flow water heaters (also called an instantaneous hot water heater or instant water heater) do not store any water. The unit sits completely dormant on your exterior wall until you turn on a hot tap inside the house.

When you open a tap, cold mains water travels into the unit. An internal sensor detects this water movement and immediately triggers an electronic ignition. The gas burner fires up, rapidly transferring intense heat to a copper heat exchanger. The water absorbs this heat as it flows through the coiled copper, delivering hot water straight to your showerhead or kitchen sink. The moment you turn the tap off, the burner shuts down entirely.

The Benefits of Continuous Flow Hot Water

Endless Supply

Because the system heats water on demand, it can never run out. As long as you have a natural gas supply and electricity connected to the house, you can run back-to-back showers while a washing machine runs simultaneously.

Real Local Example: The “Running Out of Hot Water” Case Study. If you have a growing family, a tank can easily run out of hot water halfway through the morning rush. For example, we recently helped a Sunbury family whose old tank was running out after just 5 minutes. We upgraded them to a Thermann 26L continuous flow unit, and now they never run out of hot water. Read more about this Thermann continuous flow hot water upgrade in Sunbury.

Space Saving

Design Standard storage tanks hold between 135 and 170 litres of water, requiring a heavy, bulky cylinder that takes up significant ground space. Continuous flow units are roughly the size of a small suitcase. They are mounted on the wall, keeping your side paths, courtyards, and garden areas clear.

High Energy Efficiency and Consistency

A traditional tank wastes gas by keeping a large volume of water hot 24 hours a day. Continuous flow units avoid this entirely because they only burn gas when a tap is open. You do not pay to heat water while you sleep or while you are at work. Modern units achieve 6-star and 6.8-star energy ratings that significantly lower winter gas bills.

Real Local Example: Struggling with multiple taps, this customer had a 10-year-old tank that became unreliable whenever multiple taps or showers were running at the same time. We upgraded them to a Thermann 20L 6-star unit to cut energy costs and provide consistency across the entire house. Switching to a high-efficiency unit is a smart, long-term financial decision for homeowners dealing with fading pressure and fluctuating temperatures. See the details of this energy-efficient hot water system installation in Sunbury.

Understanding Gas Storage Tanks

A gas storage hot water system (commonly called a gas hot water system) operates on a much older, simpler principle. A heavy steel cylinder, protected internally by a vitreous enamel lining, holds a set volume of water. A gas burner sits at the base of the tank, monitored by an internal thermostat.

Whenever the water temperature drops below a specific, safe level (usually around 60 degrees to prevent bacterial growth), the burner automatically ignites to heat it back up. This heating cycle happens continuously throughout the day and night to ensure the tank is always ready for use.

The Benefits of Storage Tanks

Lower Upfront Installation Costs

If your home already has a standard gas storage hot water system, replacing it with a new one is straightforward. The plumber simply disconnects the old unit, positions the new cylinder in the exact same spot, and reconnects the existing water and gas pipes. Because there are rarely any major plumbing modifications required, a like-for-like swap is usually the most budget-friendly way to get your hot water back on.

No Electrical Requirements

Many traditional gas storage tanks use a continuous pilot light to ignite the main burner. These models do not require an electrical connection to operate. If your neighbourhood experiences a power outage during a winter storm, your gas storage tank will continue to deliver hot water without interruption.

The Drawbacks of Storage Tanks

Standby Heat Loss

Even the most thoroughly insulated storage tanks lose heat to the cold surrounding air, especially during a freezing Victorian winter. As the water cools, the thermostat triggers the burner to cycle on. You end up paying for gas to heat water that nobody is using.

Limited Capacity

Once you drain the 135 or 170 litres from the tank, the hot water is completely gone. A standard gas tank can take between thirty and forty-five minutes to recover and heat a fresh batch of cold mains water, forcing everyone else in the house to wait.

The Hidden Cost of Upgrading: Gas Pipe Compliance

If you want to upgrade to instant hot water, there is a technical plumbing requirement you must factor into your budget. This specific detail often catches homeowners off guard when they request a quote.

A storage tank heats water slowly over an hour or more, meaning it only requires a relatively small, steady supply of gas. Because of this, older Victorian homes are usually fitted with standard 15mm copper gas pipes.

A continuous flow system does an entirely different job. It has to take freezing cold mains water and heat it to 50 degrees in a matter of seconds. To achieve this rapid temperature rise, the unit requires a massive, sudden burst of gas. If you attempt to connect a high-performance continuous flow unit to an old 15mm gas pipe, the system will starve for fuel. It will fail to heat the water properly and can pose a significant safety risk.

To ensure the unit operates safely and legally, the plumber must upgrade the gas line from your gas meter to the new hot water system, usually installing 20mm or 25mm copper or composite piping. Upgrading the pipe sizing is a strict safety requirement for any compliant gas appliance installation.

This mandatory compliance upgrade is the primary reason why switching to a continuous flow system carries a higher initial installation cost than a basic tank swap. While the long-term savings on your gas bills usually offset this expense over time, you must account for the pipe upgrade in your initial replacement budget.

Electrical and Flow Rate Requirements

Alongside the gas pipe upgrade, continuous flow units have two other specific installation requirements that storage tanks do not.

First, they require electricity to function. While the water is heated by gas, the internal computer board, the water flow sensors, and the electronic ignition all run on mains power. You will need a standard, weather-proof 10-amp external power point installed near the unit. If you do not have an exterior outlet within reach, you will need to hire a licensed electrician to install one before the plumber can commission the new hot water system.

Second, continuous flow systems require a minimum water flow rate to activate. The internal sensor needs to register a certain volume of water moving through the pipes before it tells the gas burner to ignite. If your home has very old, heavily calcified galvanised pipes with poor water pressure, turning a basin tap on slightly might not trigger the hot water unit. We always test your home’s water pressure before recommending a continuous system to ensure it will operate smoothly.

Maintenance and Lifespan Comparisons

When comparing the two systems, it helps to look at how they age and what maintenance they require to reach their full lifespan.

Storage tanks are under constant pressure and are constantly exposed to water internally. To prevent the steel cylinder from rusting, manufacturers install a sacrificial anode inside the tank. This magnesium or aluminium rod is designed to attract corrosive elements in the water, rusting away so the tank itself does not. To get a ten-to-twelve-year lifespan out of a storage tank, this anode should be inspected and replaced by a plumber every five years.

Continuous flow systems do not store water, so they do not contain a sacrificial anode and cannot split in the same catastrophic way a tank does. However, they rely on complex electronic boards, sensors, and a copper heat exchanger. Modern units are built to last, and reputable brands back their technology heavily. Thermann, for example, provides a 12-year warranty on their continuous flow heat exchangers. Maintenance generally involves cleaning the cold water inlet filter to ensure dirt and sediment do not restrict the flow sensor.

Making the Final Decision

Choosing the right system comes down to evaluating your household size, your budget, and how long you plan to stay in the property.

You should choose a continuous flow system if you have a growing family, teenagers who take long showers, or a household where multiple people need to get ready at the same time. The luxury of endless hot water removes the daily friction of waiting for a tank to reheat. It is also the best choice if you have a narrow side path or a small courtyard and want to reclaim the floor space taken up by a bulky cylinder. If you plan to stay in the home for the next decade, the higher upfront installation cost is easily justified by the ongoing reduction in your gas bills.

You should choose a gas storage tank if you are on a strict budget and want the most affordable, immediate solution. If your current tank has burst and you just want the hot water restored within a few hours, a like-for-like swap avoids the extra labour of upgrading gas lines or installing new electrical points. A storage tank is also highly practical if you live alone or with just one other person, as you are unlikely to ever drain a 135-litre tank in a single morning.

Every Victorian property is plumbed differently, and the smartest way to make a decision is to have a licensed professional assess your specific setup. We provide thorough site inspections to measure your available space, test your water pressure, and check the sizing of your existing gas lines. We then provide a clear, fixed-price quote covering all required compliance work, so you know exactly what both options cost before any tools are lifted.

If you are tired of cold showers, leaking cylinders, or massive gas bills and need a professional hot water system replacement, our local team can help. We supply, install, and test high-efficiency hot water systems across Melbourne’s North West, ensuring your home stays comfortable and compliant for years to come.

Need help right now? Book our emergency plumber in Gisborne or call 0451 645 672.

First: make it safe

• Turn off water at the meter at the front of your property. Most GWW meters are at the front boundary.
• Keep away from wet power points or the switchboard. Energy Safe Victoria warns floods and storms can create electrical hazards. If in doubt, call 000.
• Move rugs and furniture. Take quick photos for insurance.

Case study: burst flexi hose under a Gisborne kitchen sink

• The call: 8:10am, water pouring from under the sink.
• On arrival: Isolated water, protected power, capped the failed braided flexi hose.
• Cause: Corroded stainless braid on a 10+ year old flexi.
• Fix: Replaced both hot/cold flexi hoses with quality, pressure-rated hoses. Checked pressures and nearby isolation valves.
• Prevention: Advised two-year checks and to replace aging hoses proactively. Insurers report flexi hoses are a major cause of water damage claims in Australia. Recent Suncorp data shows around 1 in 10 water-damage claims were flexi-hose bursts, with average claims >$27,500.

Quick steps while you wait

• Shut off water at the front meter. If the valve is stiff, don’t force it. We’ll handle it.
• Open a cold tap to relieve pressure.
• Mop up and ventilate. Mould can start in damp rooms; fix leaks and dry areas quickly.
• If the leak involves stormwater, remember private stormwater on your land is your responsibility; council manages public drains and the network.

Who fixes what in Gisborne

• Inside your boundary: You’re responsible for private pipes and fixtures; use a registered/licenced plumber.
• Sewers and network assets: Greater Western Water looks after blockages in their network; private lines on your land are yours. Their guidance explains how to tell if it’s on your property or theirs (inspection shaft/27A).

What we do on site

• Make safe and isolate
• Leak-locate and diagnose (including flexi, copper, PEX, valves)
• Repair or replace on the spot where possible
• Pressure test, photos, and report for insurance
• Advice on prevention (pressure limiting, flexi hose replacement schedule)

Why act fast

RACV Trades logged 6,377 burst water pipe callouts in 2023. Quick shut-off and fast repairs limit damage and costs.

Why Speedy Services Today

• Same-day Gisborne Emergency Plumbing, 24/7
• Upfront pricing before work starts
• Licenced and insured team
• Lifetime workmanship warranty
• Clean, friendly, local

FAQ

Where is my water meter in Gisborne?
At the front boundary in most cases; look near the garden tap.

Do I need a compliance certificate?
For eligible plumbing work, a licensed plumber must issue a VBA compliance certificate.

The toilet backed up as well — who do I call?
If it’s your private line, that’s us. If the blockage is in GWW’s network, their crew handles it. Their guide shows how to check.

Need help now? Book Speedy Services Today emergency plumber in Bulla or call 0451 645 672.

Why a pre-winter check matters in Bulla

Melbourne winters are cool. Average daytime highs sit around 13–15°C in June–August, so heaters work hard and faults show up fast.

How often should you service a gas ducted heater?

Energy Safe Victoria recommends servicing gas heaters at least every two years by a qualified gasfitter. This helps prevent carbon monoxide (CO) risks and keeps the unit efficient.

Know the CO basics

CO is invisible and has no smell. Headache, nausea, or dizziness when the heater is on can be a warning sign. Better Health Channel advises replacing old open-flued heaters and using an audible CO alarm that meets recognised standards.

Local safety tips for Hume (covers Bulla)

Hume City Council echoes the two-year service rule, suggests checking safety alerts for your model, not running heaters overnight, and installing a CO alarm as a back-up.

What a proper service should include

Victoria has mandated AS 4575 for servicing Type A gas appliances. That means CO testing and a documented process when a licensed gasfitter services your heater.

Signs your ducted heating needs attention

• Cold air from vents or slow warm-up
• Burning or musty smell when starting
• Higher gas bills for the same settings
• Yellow or unstable pilot, or the unit trips
• Hot and cold spots in rooms
• Noises from the fan, return, or roof space

If you notice symptoms of CO exposure when the heater runs, switch it off, ventilate, and seek help.

Quick checks you can do safely

• Replace or clean return-air filters
• Clear furniture away from floor or ceiling vents
• Make sure the outdoor flue and roof cowl are not blocked
• Check the thermostat location is not in direct sun
• Run a short test and listen for rattles or fan strain

If you smell gas, ventilate and avoid flames or switches. Turn gas off at the meter only if it’s safe, then call a licensed professional.

What we do on a Bulla heater service

• Test for CO and negative pressure
• Inspect heat exchanger, burners, fan and igniter
• Check flue integrity and roof penetration
• Clean filters and return-air cavity
• Confirm gas pressures and thermostat operation
• Report findings and options before any repairs

For notifiable plumbing work, licensed plumbers issue compliance certificates under Victorian rules.

Call now

Want your system safe and ready for winter?
Call 0451 645 672 or book our Bulla emergency page.

FAQ

How often should I service my ducted gas heating?
At least every two years by a qualified gasfitter.

Should I install a CO alarm?
Yes. Use an audible alarm that meets EU/US standards, and still service the heater regularly.

Is there a standard for heater servicing?
Yes. Victoria mandates AS 4575 for servicing Type A gas appliances, including CO testing.

Do you provide compliance paperwork?
For eligible works, a licensed plumber issues a compliance certificate as required by the VBA.

Need help now? Book our emergency plumber in Craigieburn or call 0451 645 672.

Signs you’ve got a blockage

• Toilet water rising or slow to drain
• Gurgling sounds in sinks or shower
• Sewage smells from floor drains
• Overflow at the outdoor inspection point

Safe DIY checks (5–10 minutes)

• Stop water use. Pause the dishwasher, washing machine, and any flushing.
• Try a cup plunger on sinks or a flange plunger on toilets. Short, firm pushes work best.
• Check the outdoor gully/overflow. If it’s surging, keep people clear.
• Remove hair from shower wastes. Use a hook or gloved hand.
• Skip chemical drain cleaners. They can damage pipes and splash back.

If water is near power points or you smell gas, keep clear and call 000. Energy Safe Victoria advises turning off gas at the meter only if it’s safe, avoiding flames and switches, and ventilating the area.

Who fixes what in Craigieburn

• Inside your property: You’re responsible for your private drains and fixtures. Work must be done by a registered/licenced plumber under Victorian rules.
  
• Street mains / water authority assets: Craigieburn is serviced by Yarra Valley Water, which operates major local sewer assets (including the Craigieburn Sewage Transfer Hub). Contact the water authority if you believe the fault is on their side.
  
• Stormwater: On private property, all roof and paved-area runoff must discharge to approved council drains via a legal point of discharge (LPOD) in Hume. That’s a council matter for approvals; blockages on your private stormwater lines are your responsibility.

When to call a plumber right away

• Sewage backing up into the house
• Overflow at the inspection point that won’t subside
• Repeated blockages after basic plunging
• Wet ceilings or stormwater entering rooms

What we do on site

• Isolate and make safe
• Jet-blast and clear the blockage
• CCTV scope to find cracks, roots, or collapsed sections
• Show you the footage and options
• Provide an upfront quote for repair or relining
• Issue compliance paperwork when required by Victorian regulations (licensed plumbers lodge compliance certificates for certain classes of work).

Why Speedy Services Today

• Same-day help across Craigieburn
• 24/7 callouts with upfront pricing
• 20+ years’ experience, fully licenced and insured
• Lifetime workmanship warranty
• Local team that cleans up properly

Quick preventer tips

• Bin wipes, nappies, pads, and fats — never flush or pour them
• Fit hair catchers in showers
• Have trees near your line? Plan periodic jetting to keep roots at bay
• After big downpours, walk the property and check outdoor drains

FAQ

Are you available after hours?
Yes, Speedy Services Today is on call 24/7.

Do you charge a call-out fee?
A small call-out fee applies. We confirm pricing before work starts.

Can you show me the problem?
Yes. We use CCTV and can share the footage and next steps.

Will I get paperwork?
Where required, a licensed plumber issues a compliance certificate that confirms the work meets Victorian standards.

A dusty cooler wastes water and power. It can also push dirty air through your home.
Use this quick Melton guide to spot issues early and keep air fresh.

9 signs it needs a clean or service

• Musty or sour smell when it starts
• Weak airflow from ceiling vents
• Uneven cooling across rooms
• Visible dirt or scale on pads
• Drips from the roof unit or wet ceiling marks
• Water pooling around the home from bleed-off
• Unit runs louder than normal
• Frequent on-off cycling
• Spike in your water bill during hot spells

DIY checks you can do safely

• Turn power off at the isolator before any checks
• Hose dust from the filter screen in the roof unit housing
• Inspect pads for cracks, heavy scale or mould. Replace if worn
• Check the float valve level. Too high causes overflow
• Make sure roof and ceiling vents are open and not blocked
• Run a short test cycle. Listen for pump noise and look for leaks

If you see leaks, wet plaster or a soaked ceiling, call our emergency plumber in Melton right away:
https://speedyservicestoday.com.au/emergency-plumber-melton/

How often should Melton homes service coolers

• Basic clean at the start of summer
• Pad inspection or replacement every 1–2 seasons, depending on water hardness and dust
• End-of-season drain and clean to prevent stale water and scale

Water and safety resources

• Greater Western Water: water use and conservation info for our area – https://www.gww.com.au
• Sustainability Victoria: home cooling and energy tips – https://www.sustainability.vic.gov.au
• Victorian Building Authority: why licenced work matters – https://www.vba.vic.gov.au

Why choose Speedy Services Today

• Local Melton support with same-day bookings
• Upfront pricing and options before work starts
• Licenced plumbers and HVAC techs
• Lifetime workmanship warranty
• We clean up and remove waste pads

What we do in a standard service

• Isolate power and water
• Inspect and clean the tank, pump and float valve
• Clean or replace pads as needed
• Clear the distribution spider and lines
• Check bleed-off, overflow and drain
• Test run, check airflow and confirm no leaks

FAQs

Can I run the cooler with dirty pads?
It will work, but air quality and cooling drop. Water use can rise.

Why does it smell when it starts?
Stale water, dirty pads or algae. A drain, clean and fresh water usually fixes it.

Is pad replacement expensive?
We quote up front. Many units use standard pad sets that are quick to swap.

Do you service rooftops on double-storey homes?
Yes. We use the right ladders and safety gear.

Need help now? Book our emergency plumber in Sunbury.
We’re local, licensed and on call 24/7. Call 0451 645 672.

What is an emergency

• Burst or leaking pipes
• Blocked toilet or sewer overflow
• No hot water or a leaking hot water unit
• Gas smell or suspected gas leak
• Roof or stormwater leak flooding rooms
• Water near electrical fittings

Safety steps

• Turn off water at the front meter if a pipe has burst. See meter basics via Greater Western Water: https://www.gww.com.au
• Suspect gas? Ventilate, avoid sparks, and turn off gas at the meter if safe. Energy Safe Victoria has clear steps: https://esv.vic.gov.au
• If there is danger to life or property, call 000.

Fast fixes we attend in Sunbury

• Burst pipes and leak locating
• Blocked drains and toilets with jetting and CCTV
• Hot water repairs and changeovers
• Gas leak testing and repairs
• Roof leaks and stormwater faults

Who fixes what

• Greater Western Water looks after the street mains and shared assets.
• You’re responsible for pipes and fixtures on your property.
• Victoria requires registered or licenced plumbers under the VBA. Check licensing info: https://www.vba.vic.gov.au

Why call now

Water damage spreads fast and can be costly. Quick isolation and repair reduces damage and mould risk.

Why Speedy Services Today

• 24/7 help and same-day repairs are offered by Speedy Services Today
• Upfront pricing before work starts
• 20+ years’ experience, fully insured
• Lifetime workmanship warranty
• 5-star Google reviews
• Clean, friendly local team

FAQs

Do you charge a call-out fee?
Yes, a small fee applies. We confirm pricing up front.

Are you open on weekends and public holidays?
Yes. We operate 24/7.

Do you handle gas leaks?
Yes. Follow Energy Safe Victoria’s steps, then call us.