Hot Water Systems Perth

No hot water? 24/7 emergency repairs across Perth, and most standard replacements done in 2 to 4 hours. Gas, electric, continuous flow and heat pump.

No Call-Out Fee
Fixed Price Before We Start
Lifetime Workmanship Guarantee

Licensed plumbers and gas fitters with over 10 years across Perth. We carry the common units on the van, so a dead system on a Tuesday morning is usually hot water again by Tuesday afternoon.

GET MY HOT WATER BACK

0493 085 350

24/7 Emergency Repairs

Hot water does not fail politely at 9am on a Tuesday. We answer around the clock across Perth.

No Call-Out Fees

You get an upfront fixed price before any work starts. No surprises on the invoice.

7:30am-4pm Mon-Fri. After-hours call-outs may incur a fee.

Repair Before Replace

If a valve or element fixes it, we tell you that. We do not sell you a tank you do not need.

Licensed Plumber & Gas Fitter

Gas and water on the one licence, so the whole job is done by one trade, legally.

Hot Water Systems We Install, Replace And Repair

Every type, every major brand, and an honest answer on whether yours is worth repairing before you spend money replacing it.

Gas Storage

A tank of water kept hot by a gas burner underneath it. Cheaper to run than electric storage in most Perth homes, and it keeps delivering through a blackout because the burner does not need power. Best suited to households with a natural gas connection and space outside for the cylinder. Recovery is quick, so a family hitting the shower one after another is rarely a problem.

Get a gas storage quote

Wall mounted continuous flow instantaneous gas hot water unit

Instantaneous / Continuous Flow

No tank at all. The unit fires only when you open a hot tap and heats the water as it passes through, so you never run out and you are not paying to keep a cylinder hot overnight. It mounts flat on a wall and takes up a fraction of the room a tank does, which is why it suits townhouses and tight side access. Sizing matters here: the right unit depends on how many outlets you might run at once, not on how many people live there. Installing one of these also requires 2.75kPa gas supply pressure at the property. If you are not sure whether you have this, check your gas meter or contact ATCO.

Ask about continuous flow

Heat pump hot water system with tank and compressor in a Perth backyard

Heat Pumps

The most efficient electric option available. Instead of using an element to make heat, it moves heat out of the surrounding air into the tank, the same principle as a reverse-cycle air conditioner running backwards. It uses a fraction of the electricity a standard element does, which is why they pair so well with rooftop solar and a daytime timer. Perth's mild climate suits them well. They cost more up front than a plain electric tank and they need clear air space around the unit, so we will tell you honestly whether your spot suits one. Heat pumps are also one of the system types where government rebates and incentives are most likely to apply, and we can help you navigate what is available.

Talk heat pumps

Tap Tech technician servicing an electric hot water storage tank in Perth

Electric Storage

The simplest system there is: an insulated tank with an electric element inside it. Cheapest to buy and install, and the default in a lot of older Perth homes and units with no gas connection. Running cost is the trade-off, particularly on a standard tariff. If you are replacing an old electric tank we will always show you what the same job looks like as a heat pump before you commit, because the sums often surprise people.

Get an electric quote

Tap Tech technician repairing a solar hot water system on a Perth roof

Solar Hot Water Repairs

Already have a solar hot water system on the roof? We service and repair them, boost elements, controllers, leaking or corroded cylinders, and the gas or electric boost side that carries you through the days the sun does not cooperate. We do not install new solar hot water systems or remove and replace an existing one, so if yours is finished and you are after a fresh system, ask us about a heat pump instead. It gets you similar running costs without collectors on the roof.

Book a solar repair

Tap Tech technician servicing a gas hot water unit in Perth

Repairs & Diagnostics

Plenty of hot water faults are a part, not a whole system. Failed thermostats and elements, a pilot that will not stay lit, a faulty gas valve, a leaking or weeping pressure relief valve, a sacrificial anode that has done its job and needs replacing, or a tempering valve that has stuck and left you with lukewarm water. We diagnose the actual fault first and quote the repair against the replacement so you can make the call with real numbers.

Book a repair

Open gas hot water tank casing showing insulation and components during a scheduled service

Servicing & Maintenance

Scheduled servicing is the cheapest thing you can do to get full life out of a system, and it is the step almost everyone skips until the hot water stops. An annual service checks the gas connection, tests the safety devices, cleans the components and inspects for wear and corrosion while it is all still fixable. On gas in particular it is worth booking, because the faults that strand you on a winter morning almost always announce themselves months earlier.

Book a service

Old corroded hot water tank leaking onto a laundry floor

Emergency Replacement

When a tank splits, it does not politely wait. You get water across the laundry floor or down the side of the house, and there is no repair for a failed cylinder. We isolate it, get the water off, and where we can we replace it the same day rather than leaving you without hot water over a weekend. If the old unit is a discontinued model we will tell you the closest current equivalent and what changes about the install.

I need this today

Brands We Install And Service

We are not tied to one manufacturer, so the unit we recommend is the one that fits your house and your budget, not the one we are locked into selling.

Among others. If you already have a preferred brand, tell us and we will price it. If you have no idea what is on the wall, send us a photo of the label and we will work it out.

No Hot Water Right Now?

A cold house full of people who need showers is not a tomorrow problem. Call and talk to a licensed plumber, not a call centre.

Call 0493 085 350 Request a call back

Which Hot Water System Is Right For Your House?

Most people replace like for like because that is the path of least resistance. Sometimes that is the right call and sometimes it costs you for the next decade. Here is the honest version.

Gas Storage

How it worksA gas burner keeps a tank of water hot and ready.

Best forHomes already on natural gas with room outside for a cylinder, and families who shower back to back.

Running costGenerally lower than electric storage.

Typical lifeAround 8 to 10 years for a storage tank.

Worth knowingKeeps working in a blackout because the burner does not need power. You are still paying to hold a tank hot around the clock.

Instantaneous

How it worksNo tank. Heats water on demand as it flows through the unit.

Best forTight side access, townhouses and units, and anyone sick of running out of hot water.

Running costNo standing heat loss, so you only pay for what you actually use.

Typical lifeOften 10 to 12 years, longer than a tank.

Worth knowingSized by how many outlets run at once, not by how many people live there. Undersize it and two showers at once will disappoint you.

Heat Pump

How it worksPulls heat out of the surrounding air into the tank, like a reverse-cycle air conditioner in reverse.

Best forHomes with no gas, and anyone with rooftop solar who can heat during the day.

Running costThe lowest of the electric options by a wide margin.

Worth knowingCosts more up front and needs clear air space around the unit. There is a fan, so placement next to a bedroom window is worth thinking about.

Electric Storage

How it worksAn element inside an insulated tank, the same idea as a giant kettle.

Best forProperties with no gas connection, and situations where the lowest up-front cost matters most.

Running costThe highest of the four on a standard tariff.

Typical lifeAround 8 to 10 years, same as gas storage.

Worth knowingAn electrician is needed to disconnect and reconnect the power. We organise that for you.

The right answer depends on what is already connected at your place. If you have no gas line, a gas system means paying to run one. If you have solar panels and a daytime surplus, a heat pump changes the maths completely. We look at what you actually have before recommending anything.

What Size Do You Actually Need?

The most common mistake is replacing like for like without checking whether the old one was ever the right size. For a storage tank it comes down to household size.

125L1 to 2 people

160L2 to 3 people

250L3 to 4 people

315L+Larger families

Continuous flow works on a completely different measure. Because there is no tank, you size it by how many hot outlets could run at the same time, rated in litres per minute, which is why they are sold as 16, 20 and 26 litre per minute units. A couple in a two-bathroom townhouse who both shower at once can need a bigger unit than a family of five who never overlap. We size it on your actual routine, not on what happened to be there before.

Six Signs Your Hot Water System Is On Its Way Out

Tanks rarely fail without warning. Catching it early is the difference between a planned replacement and mopping out the laundry on a Sunday.

Water is running rusty or brown

Usually the inside of the tank corroding, often because the sacrificial anode has been eaten away. Sometimes fixable if caught early. Ignored, it ends with a split cylinder.

Hot water runs out faster than it used to

Sediment building up in the base of the tank takes up volume the water used to occupy, and insulates the burner or element from the water it is meant to heat.

Puddle or damp patch under the unit

A weeping relief valve can be a cheap part. Water coming from the body of the tank itself cannot be repaired, and it will get worse, not better.

Banging or rumbling when it heats

That is water boiling through a layer of sediment on the bottom of the tank. It is a symptom of a system working much harder than it should be.

Pilot light keeps going out

Often a thermocouple, which is a genuinely inexpensive fix. Worth a repair call before anyone talks you into a whole new system.

It is over ten years old

Not a fault on its own, but past that point you are on borrowed time. Replacing on your terms is always cheaper and less disruptive than replacing on the tank's terms.

Get It Looked At Before It Fails

How A Hot Water Job Runs

Four steps, and you know the cost before anyone touches anything.

Tell Us What It Is Doing

No hot water, not enough, leaking, or just old. A photo of the label tells us the brand, size and age before we arrive.

Diagnose On Site

We find the actual fault rather than assuming the worst, and check whether a repair is genuinely viable.

Fixed Price, Both Options

Where a repair is possible you get both numbers, repair and replace, and you choose. Nothing starts until you say go.

Install And Test

Old unit out, new one in, compliant, tested, and the site left clean. We take the old system away with us.

Tap Tech Plumbing and Gas technician beside a fully equipped service van in Perth

About Tap Tech Plumbing & Gas

We are a Perth plumbing and gas business that has spent more than ten years on local homes, and hot water is the call we take most often. It is also the job where customers get taken advantage of most, because you are cold, you are inconvenienced, and you are being asked to make a four-figure decision on the spot.

So we work the other way around. We diagnose before we quote. If a thermostat or a valve will genuinely fix it, we say so, even though a replacement would be worth more to us. When a system really is finished, you get a fixed price and a straight explanation of why, plus the options across gas, electric, continuous flow and heat pump so you get the system that suits your house, not just whatever is quickest to fit.

Being licensed for both plumbing and gas fitting means the one team does the whole job legally, which matters more than people realise on gas work. Everything we do is backed by our Lifetime Workmanship Guarantee.

Get My Free Quote

Why Choose Us?

The things customers actually notice, which are rarely the things plumbers advertise.

No call-out fees
Upfront quotes before work starts
10+ years experience
Reliable and clear communication
We keep your home tidy
We send an ETA text so you are not waiting all day
Licensed and insured plumbers and gas fitters
Committed to being the only plumber you will ever need

Locations Serviced Across Perth

Based in East Victoria Park and covering the whole metro area, from Rockingham to Joondalup and Fremantle out to the Perth Hills. If your suburb is not listed, call anyway, it almost certainly still is.

Northern Suburbs

Joondalup, Wanneroo, Butler, Yanchep, Mindarie, Alkimos, Ocean Reef, Hillarys, Padbury, Woodvale, Craigie, Iluka, Mullaloo, Heathridge, Beldon, Quinns Rocks, Banksia Grove, Carine, Trigg, Scarborough

Southern Suburbs

Rockingham, Baldivis, Secret Harbour, Como, Melville, Booragoon, Spearwood, Bibra Lake, Cockburn, Riverton, Shelley, Winthrop, Kardinya, Salter Point, South Perth, Victoria Park, Ardross, Lake Coogee

Western Suburbs

Fremantle, Cottesloe, Claremont, Subiaco, Nedlands, Dalkeith, Mosman Park, City Beach, Applecross, Attadale, Bicton, Palmyra, East Fremantle, Beaconsfield, Hilton, Wembley Downs, North Perth

Perth Hills

Kalamunda, Mundaring, Roleystone, Armadale and the surrounding hills suburbs

Frequently Asked Questions

Should I repair my hot water system or replace it?

It depends on what has failed and how old the unit is. A thermostat, an element, a thermocouple or a relief valve are all parts, and on a system with years left in it a repair is usually the sensible call. What cannot be repaired is the cylinder itself: once a tank has corroded through and is leaking from the body, no amount of parts will save it. The rule of thumb we work to is that if a system is past about 8 years and the repair would cost more than half the price of replacing it, replacing is usually the better spend. We diagnose the actual fault first, then give you both numbers so you can decide with real figures rather than a guess.

How long should a hot water system last?

With reasonable maintenance, most systems run effectively for around 8 to 12 years. Storage tanks, gas or electric, typically sit at the 8 to 10 end. Continuous flow units often push past 10 to 12, because there is no cylinder sitting full of hot water corroding from the inside. The single biggest factor on a storage system is whether the sacrificial anode has ever been replaced, and on most Perth homes the honest answer is no. If yours is past ten and has never been serviced, it is not broken, but it is living on borrowed time.

What size hot water system do I need?

For a storage system it comes down to how many people are in the house and how they use it, because you are sizing the tank to cover your peak demand before it needs to reheat. For a continuous flow unit it works completely differently: you size it by how many hot outlets could realistically run at the same time, measured in litres per minute, which is why they are commonly sold in 16, 20 and 26 litre per minute ratings. A couple in a two-bathroom townhouse who both shower at once can need a bigger continuous flow unit than a family of five who never overlap. It is the single most common thing people get wrong when they replace like for like, so we ask about your actual routine rather than just matching whatever was already there.

How fast can you replace a dead hot water system?

Most standard replacements take 2 to 4 hours on site. We do not carry every model on the van, but we can usually source common units and have the job done the same day, subject to availability and system compatibility. It gets slower when the unit is an unusual size, when the replacement needs a different connection than the old one, or when the install spot needs work to meet current requirements. If we cannot do it same day we will tell you straight away rather than leaving you guessing, and we will isolate the old one so it is not still leaking while you wait. For genuine emergencies we run 24/7 across Perth.

How often should a hot water system be serviced?

Annually is the sensible interval, particularly on gas. A proper service checks the gas connection, tests the safety devices, cleans components and inspects for wear or corrosion before it turns into a failure. It is the cheapest thing you can do to get the full life out of a system, and it is the step almost everyone skips until the hot water stops. If yours has never been serviced and it is heading toward eight years, that is the point to start.

Are there any rebates available for hot water systems?

Yes. Various government rebates and incentives are available for energy-efficient hot water systems, particularly heat pump systems. What you qualify for depends on the unit you choose and your circumstances, and the amounts change over time, so we will not quote you a figure over the phone and then revise it later. What we will do is help you navigate what is currently available so it comes off your installation cost rather than being left on the table. Ask us when we quote and we will walk you through which of the options on your shortlist are likely to attract an incentive.

Do you repair or install solar hot water?

We repair and service existing solar hot water systems: boost elements, controllers, leaking or corroded cylinders, and the gas or electric boost that carries the system on days the sun does not cooperate. We do not install new solar hot water systems or remove and replace an existing one. If your solar system is at the end of its life and you are after a fresh install, a heat pump is the option we would talk you through, since it gets you similar running costs without collectors on the roof.

Can I switch from electric to gas, or to a heat pump?

Usually yes, and it is often worth costing out rather than defaulting to like for like. Moving to gas only stacks up if there is already a gas line at the property, because running a new one changes the price considerably. Moving to a heat pump suits homes with no gas at all, particularly with solar on the roof, since you can heat during the day on your own power. The switch does mean different pipework, a different electrical or gas connection and sometimes a different location, so we work that out on site before quoting.

Why is my hot water lukewarm instead of hot?

Lukewarm rather than cold usually points at something specific rather than a dead system. On a storage unit it can be a failed thermostat, one of two elements gone, or so much sediment in the base that the heat is not reaching the water properly. It can also be a tempering valve that has stuck part way, which is a relatively cheap part. On a continuous flow unit it is often a flow rate issue, where too many outlets are open for the unit to keep up. Worth a diagnosis call, because several of those are inexpensive fixes.

Do I need a tempering valve?

On new installations, hot water delivered to bathroom outlets has to be limited to a safe temperature, which in practice means a tempering valve on the system. It exists to stop scalding, particularly for children and older people, and it is a compliance requirement rather than an optional extra. If your existing system predates the rule you may not have one, and it is one of the things that changes when you replace an old unit. We fit and set them as part of the job and will explain what changes on your install before we start.

What brands do you install?

We work with all the major brands, including Thermann, Rheem, Rinnai, Bosch, Vulcan, Dux and AquaMax. We are not locked into a single manufacturer, which means the unit we put forward is the one that suits your house, your connection and your budget rather than the one we are contracted to move. If you have a brand preference already, tell us and we will price it. If you have no idea what is currently on your wall, send us a photo of the label and we will identify it.

Is a leaking hot water system an emergency?

A steady drip from the pressure relief valve is normal behaviour to a point, since that valve is designed to release pressure as water heats and expands. Water coming from the body of the tank is a different matter and it will not fix itself, because that is the cylinder itself failing. If water is running across a floor, near an electrical outlet, or into a wall cavity, treat it as urgent and call us. In the meantime, turning off the water supply to the unit will limit the damage.

Do you take the old system away?

Yes. The old unit goes with us and is disposed of properly. We also clean up the install area rather than leaving you with the packaging, the old brackets and a wet patch to deal with. It sounds like a small thing but it is one of the most common complaints people have about the last mob who did the job, so it is worth saying plainly.

I am renting, or I manage the property. Who arranges it?

We work with owners, tenants, property managers and strata all the time, so tell us the arrangement when you call and we will work to it. Hot water is generally the owner's responsibility to keep functioning, and because you get an itemised fixed quote before anything happens, everyone in the chain can see exactly what is being done and what it costs. That tends to speed up approval considerably compared to a vague verbal estimate.

Are your plumbers licensed and insured?

Yes. Tap Tech Plumbing & Gas is a licensed and insured Perth plumbing and gas business with more than ten years behind it. That dual licence matters on hot water specifically, because a gas system needs a licensed gas fitter as well as a plumber, and doing it any other way is both unsafe and non-compliant. Every job we do carries our Lifetime Workmanship Guarantee, so if something we installed fails because of our work, we come back and fix it at no cost to you.

Book Your Hot Water Job

Tell us what the system is doing and we will call you back with a time. No call-out fee, and you get an upfront price before any work starts. Every job is covered by our Lifetime Workmanship Guarantee.

Call 0493 085 350

Or fill in the form below and we will come back to you.

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Testimonials

Tap Tech Plumbing & Gas

Based on 132 reviews

Review us on

Tap Tech's service was very good. They came to our office within 2 hours and fixed the issue right away. Highly recommended

Ashish Shetty

A job well done 👍 and very well organised. Nay was courteous, right on time. This was a small job but Nat checked all our other tapes and pipes around the unit. That’s really helpful and needed. Will definitely call... read more them again.

Swirlwind Shirl
The guys turned up on time, were polite and did a very professional job. Were good at explaining my options, worked fast, for a good price, No complaints and will use again (have already booked them for another job). Very... read more

Daniel McNamara

So happy with the prompt service. Nay was friendly, professional, efficient and left no mess. I was very pleased with my experience with Tap Tech and will use them again.

Nellie
I had a great experience with Tap Tech Plumbing and wouldn’t hesitate to use them again. Caiden was honest from the first phone call, letting me know my leak wasn’t an emergency and suggesting I book during the week rather... read more

Gemma G

Very professional and helpful.

Adelel Salleo
Had an issue that needed to be fixed quickly. Jaimi was very helpful with scheduling and Nay came out to complete the work. Nay completed the free plumbing safety inspection and identified an issue that was better rectified then and there. We... read more

M C

Good service and workmanship by Nav from Tap Tech Plumbing and Gas. He is very knowledgeable in fixing my toilet cistern. I will recommend him to anyone requiring plumbing work.

George Chi
Awesome plumbers! Quality service and second to none, highly recommended 👍

Anthony Rowell

Efficient, clear communication and friendly

Samuel Vyimes
Strongly recommend Caiden and the team at Tap Tech! We recently paid $400 for a "call out/investigation" fee from another plumber, only to receive an exorbitant quote for the work. After asking Caiden for a second opinion, he confirmed it only needed... read more

Cleon Kartawiria

Caiden has done several jobs for me over the past few months & I've found him to be professional, prompt, friendly and reasonably priced. He carried out CCTV inspection of the drainage system & installed new stormwater pipework. He also... read more

Maureen Campbell
I am very happy with the prompt, efficient and affordable service provided by Jaimie, Caiden and Nay. I needed a new spout in the bathroom and a new kitchen mixer tap, both of which were installed by Nay at a... read more

Deepti Azariah

Thanks team, really happy with quality of service. Our HWS is running smoothly. Cheers

Bel White
Caiden completed a number jobs for me in a very professional manner. A very personable tradesman, Caiden's work and ethic was very impressive. Thanks Tap Tech.

Steve Lushey

Excellent service by Caiden. Communication great. Kept me informed at all times and sorted the problem I had. Would definitely recommend! 👍

Leeanne McKie
Leaky pipes repaired, great fast service. Definitely recommend.

Keef Guessin

Highly recommend Tap Tech Plumbing & Gas! Caiden responded quickly to a burst pipe and had the problem fixed efficiently and professionally. The inspection was thorough, and they took the time to explain everything clearly, giving me confidence that the... read more

Merryn ryde
Very reliable and competent plumbers. Punctual, good communicators and polite. Would readily recommend this business.

Joseph Martis

Great service received once again today from Caiden at short notice. Genuinely the best service I have encountered in a long time across a few jobs whilst renovating a house

David Masters