# Hot Water System Installation Perth | HWS Perth > Perth hot water system installation on every major brand. Correct sizing, compliant install, free old-tank removal and upfront quotes. Book your free quote today. URL: https://perthhotwatersystem.com.au/hot-water-system-installation/ ![Licensed Perth plumber installing a new hot water system on the exterior wall of a suburban home](/images/misc/licensed-perth-plumber-mounting-a-brand-new-hot-wa.webp) Most Popular # Compliant Hot Water System Installation Across Perth Last updated: 10 August 2026 Supply and compliant installation of new hot water systems, sized right, installed to WA code, with free old-tank removal. - verified\_user Licensed & insured - schedule 24/7 Emergency Service - request\_quote Free upfront quotes - verified 100% Satisfaction Guarantee Get a Free Quote [/contact/ →](/contact/) call 08 6243 6734 [tel:+61862436734 →](tel:+61862436734) JOB TYPE ## Installation WA LICENSED verified PLUMBER & GAS - check\_circle Correct sizing for your household size and peak demand - check\_circle Supply of Rheem, Rinnai, Dux, Bosch, Vulcan and more - check\_circle Compliant installation with certificate - check\_circle Free safe removal and recycling of your old tank INDICATIVE From $500 Book this service [/contact/ →](/contact/) star 4.9 (150+ Google reviews) verified\_user Licensed & Insured schedule 24/7 Emergency Service task\_alt 1,000+ jobs completed ## What a new hot water system installation involves We size, supply and install brand-new hot water systems right across the Perth metro: gas, electric, solar and heat pump, on every major brand. Every install is completed by licensed plumbers and gas fitters to WA compliance standards, and we safely remove and recycle your old tank at no hidden cost. Most people call our Perth hot water system [/ →](/) team at one of two moments. Either the old system has just failed and they need it replaced now, or they have noticed the signs coming and want to plan the swap on their own terms. Both are fine. The planned route is cheaper and gives you more choice of system, but we handle plenty of same-day emergency replacements too. The install itself starts before anything gets unbolted. We check the existing unit’s position and clearances, what supply you actually have available, whether the electrical circuit or gas line will carry the new unit, and how much hot water your household needs at peak. A 400 litre tank in a two-person home wastes standby energy every single day for a decade. A 125 litre tank in a five-person home means somebody gets a cold shower every morning. Getting the storage capacity (litres) and recovery rate right is the single decision that has the most effect on how happy you are with the system in three years. ![Plumber connecting copper pipework and fittings to a newly installed hot water system](/images/misc/close-up-of-a-plumber-connecting-copper-pipework-a.webp) Once the system is selected we quote it in writing, including the unit, labour, materials, old-tank removal and certification. Nothing starts until you approve it. On the day, we isolate the water and power or gas, drain and remove the old cylinder, position and secure the new one, make the connections, and commission it. All units we supply carry WaterMark certification and are installed to AS/NZS 3500.4, which includes fitting or checking the tempering valve so water delivers at a safe temperature at your bathroom outlets. ### Common problems we solve **“The old unit is in an impossible spot.”** Plenty of Perth homes have the tank wedged into a 600mm side setback or tucked behind an air conditioner. We measure clearances first and, where a like-for-like swap will not fit the modern equivalent, we look at a wall-mounted continuous flow unit or a sensible relocation with the pipework cost quoted upfront. **“I don’t know whether to change system type.”** Switching from electric storage to a heat pump can cut the running cost dramatically, but only if the placement works and the noise will not sit under a bedroom window. We give you the honest version, including when staying with what you have is the better call. **“The last quote didn’t include everything.”** Disposal fees, tempering valve replacement, isolation taps, an upgraded circuit: these are the line items that turn a tidy quote into a surprise invoice. Ours includes them or flags them clearly before we start. **“It failed and I need hot water today.”** We keep the common Rheem, Rinnai and Dux replacement models accessible and can often complete a same-day changeover. Where the specific unit needs ordering, we can arrange a temporary hot water option in the meantime. ## What it costs to install a hot water system in Perth New units generally run from around $500 for a basic electric storage tank up to $7,000 for a premium solar or heat pump system. Installation labour and materials are quoted separately, because they genuinely vary: a like-for-like electric swap in an accessible spot is straightforward, while a continuous flow gas unit needs gas fitting, flueing and sometimes an upgraded gas line. The factors that move an install quote most are system type change, unit relocation, gas or electrical work, access difficulty, and whether the existing tempering valve and isolation taps need replacing. On heat pump and solar systems, the federal Small-scale Technology Certificate (STC) rebate typically takes $800 to $1,500 or more off the price as a point-of-sale rebate, and we handle the certificate paperwork so it lands in your quote rather than in your inbox. For a full breakdown by system type, see our guide on how much a new hot water system costs in Perth [/guide/hot-water-system-cost-perth/ →](/guide/hot-water-system-cost-perth/) , or read how to choose the right hot water system [/guide/how-to-choose-the-right-hot-water-system/ →](/guide/how-to-choose-the-right-hot-water-system/) if you are still deciding between gas, electric, solar and heat pump. If the upfront cost is the sticking point, our winter upgrade financing offer [/blog/winter-hot-water-upgrade-financing-offer-perth/ →](/blog/winter-hot-water-upgrade-financing-offer-perth/) spreads it over time. ## What's included - check\_circle Correct sizing for your household size and peak demand - check\_circle Supply of Rheem, Rinnai, Dux, Bosch, Vulcan and more - check\_circle Compliant installation with certificate - check\_circle Free safe removal and recycling of your old tank - check\_circle Free upfront quotes and low-interest financing Transparent pricing ## How much does installation cost in Perth? Unit prices vary with type, brand and capacity. Installation labour and materials are quoted separately after we look at your site. ### Electric storage Like-for-like replacement, single or dual element $500 - $2,500 unit price, install quoted separately - check\_circle 125L to 400L capacity options - check\_circle Off-peak tariff compatible - check\_circle Single or dual element - check\_circle Free old tank removal Get a Free Quote [/contact/ →](/contact/) Most common ### Gas systems Continuous flow or gas storage, natural gas or LPG $900 - $4,500 unit price, install quoted separately - check\_circle Continuous flow or storage - check\_circle Licensed gas fitter connection - check\_circle Rheem, Rinnai and Bosch - check\_circle Flue and clearance compliance Get a Free Quote [/contact/ →](/contact/) ### Solar & heat pump Before the federal STC rebate is applied $2,500 - $7,000 unit price, install quoted separately - check\_circle STC rebate processed for you - check\_circle Roof or split solar, or heat pump - check\_circle Booster and timer setup - check\_circle Lowest long-term running cost Get a Free Quote [/contact/ →](/contact/) Prices are indicative only. Every job is quoted upfront and in writing after we check your site, so there are no surprises. Low-interest financing is available on larger upgrades. Why us ## Why choose Hot Water System Perth for installation? engineering ### Sized properly, not guessed Oversizing wastes standby energy and undersizing means cold showers. We size on occupants, outlets and peak demand, not a rule of thumb. local\_shipping ### Old tank gone for free We drain, remove and recycle your old cylinder as part of the job. No skip hire, no hidden disposal fee on the invoice. verified\_user ### Compliance certificate issued Every install meets WA requirements including AS/NZS 3500.4 tempering, with the certificate handed over on completion. savings ### Rebates handled in-house For eligible heat pump and solar systems we create and claim the federal STCs, so the discount comes off your quote at point of sale. handshake ### Financing available Low-interest finance spreads the cost of a bigger upgrade, which matters when a system fails without warning. bolt ### Every major brand Rheem, Rinnai, Dux, Bosch and Vulcan, plus Solahart, Edwards, iStore, Reclaim and Sanden. We recommend on fit, not on what we have in stock. Process ## How our installation works 01 search ### Site assessment We check your existing unit, available space, gas and electrical supply and your household's peak demand before recommending anything. 02 request\_quote ### Written quote You get a fixed written price covering the unit, labour, materials, old-tank removal and certification. Rebates are deducted upfront. 03 build ### Removal and install We isolate, drain and remove the old unit, then fit, level, strap and connect the new one to WA standards. Most swaps take 2 to 4 hours. 04 task\_alt ### Test and certify We check delivery temperature at the tap, test the tempering and PTR valves, issue your compliance certificate and walk you through the controls. ## Need installation in Perth? Free written quote, licensed plumbers, 24/7 for emergencies, backed by our 100% satisfaction guarantee. call 08 6243 6734 [tel:+61862436734 →](tel:+61862436734) Get a Free Quote [/contact/ →](/contact/) Our work ## Installation jobs around Perth Real jobs from around the metro. Click any image to enlarge. Results ## See the difference ![Before: Installation transformation](/images/features/old-rusted-hot-water-tank-with-corroded-base-and-s.webp) Before ![After: Installation transformation](/images/features/same-spot-after-replacement-with-a-clean-new-hot-w.webp) After Installation transformation ## How Hot Water System Perth compares | Feature | Typical provider | HWS Perth | | --- | --- | --- | | Quote | Phone estimate, revised on the day | Free written on-site quote | | Old tank disposal | Extra fee or left with you | Removed and recycled free | | Compliance certificate | Sometimes, on request | Issued on every install | | STC rebate | You claim it yourself | Processed and deducted upfront | | Brand range | One or two preferred brands | All major AU and German brands | | Emergency replacement | Next available booking | Same-day where stock allows | Reviews ## What customers say about our installation Rated 4.9 from 150+ Google reviews across the Perth metro. starstarstarstarstar > "Got quotes from three places for a new system. These guys were upfront about the price, sized it properly and took the old tank away for free. Install was neat and compliant." David M. Canning Vale starstarstarstarstar > "Replaced a 15-year-old electric tank with a continuous flow unit. They explained the running-cost difference honestly rather than just pushing the dearest option." Angela R. Morley starstarstarstarstar > "Booked Tuesday, installed Thursday, certificate emailed the same afternoon. Simple as that." Tom H. Willetton Got questions? ## Installation FAQs ### How long does a hot water system installation take? expand\_more A straight like-for-like swap is usually 2 to 4 hours. Changing system type, relocating the unit, or adding a gas or electrical connection takes longer, sometimes most of a day. We tell you the expected duration in the quote so you can plan around the water being off. ### How long will my water be off during the install? expand\_more Usually only a couple of hours during the changeover itself. We isolate at the cold water valve rather than the whole house wherever the plumbing allows, so the rest of your taps keep running. ### Do you remove and dispose of the old tank? expand\_more Yes, and it is included in the quote. We drain the old cylinder safely, carry it out, and send it for metal recycling. There is no separate disposal charge. ### Do I get a compliance certificate? expand\_more Yes. Every installation is completed by a licensed plumber, and licensed gas fitter where gas is involved, to WA requirements including AS/NZS 3500.4. The compliance certificate is issued on completion and is worth keeping for warranty and property sale purposes. ### What size hot water system do I need? expand\_more As a rough guide, a family of four typically suits a 125 to 170 litre electric storage tank, a 135 to 170 litre gas storage unit, or a 20 to 26 litre-per-minute continuous flow system. The right answer depends on how many bathrooms run at once and when your peak demand falls, which is what we assess on site. ### Can you install a different system type to what I have now? expand\_more Usually yes. Moving from electric storage to a heat pump, or from gas storage to continuous flow, is common. It may need new electrical or gas provisions, a different mounting position, or a condensate drain, all of which we cost in the quote before you commit. ### How much does installation cost on top of the unit? expand\_more It depends on the job. A like-for-like swap in an accessible spot is at the lower end. Gas fitting, flueing, relocations, new circuits, tight access or switching system type all add labour and materials. Every element is itemised in your written quote. ### Do you offer financing on a new system? expand\_more Yes. Low-interest financing is available on larger upgrades, which helps when a system fails unexpectedly and you would rather not pay it all at once. We can walk you through the options when we quote. ### What warranty comes with a new hot water system? expand\_more Units carry the manufacturer's warranty, typically 5 to 10 years on the cylinder depending on brand and model, with shorter terms on parts and labour. Our workmanship is guaranteed separately, and we handle warranty claims with the manufacturer on your behalf. ### How soon can you install a new system after I approve the quote? expand\_more Often the same or next day for common models we can source quickly. If your system has failed completely and stock needs ordering, we can usually arrange a temporary hot water solution so you are not left waiting without any hot water. ### Still have a question? Talk to a licensed Perth plumber. No call-out surprises, no obligation. Get a Free Quote [/contact/ →](/contact/) Call 08 6243 6734 [tel:+61862436734 →](tel:+61862436734) ## Related guides Detailed answers to the questions we get asked most about installation. Decision guide ### Gas vs Electric vs Solar vs Heat Pump: Running Costs Compared Gas, electric, solar and heat pump hot water running costs compared for Perth homes, with annual estimates, lifetime cost and rebate-adjusted figures. [Gas vs Electric vs Solar vs Heat Pump: Running Costs Compared →](/guide/hot-water-running-costs-compared/) Decision guide ### Hot Water System Cost in WA: Full Price Breakdown A Western Australian price breakdown for hot water systems by type and brand, plus the install labour variables, rebates and financing that shape the final number. [Hot Water System Cost in WA: Full Price Breakdown →](/guide/hot-water-system-cost-wa/) Explainer ### How to Choose the Right Hot Water System for Your Home Gas, electric, solar or heat pump? How to choose the right hot water system for your Perth home based on energy source, household size, cost and rebates. [How to Choose the Right Hot Water System for Your Home →](/guide/how-to-choose-the-right-hot-water-system/) Explainer ### Do You Remove and Dispose of My Old Tank? Yes. We safely drain, remove and recycle your old hot water tank as part of the installation, with no hidden fee. What is included in your Perth quote. [Do You Remove and Dispose of My Old Tank? →](/guide/old-hot-water-tank-removal/) Decision guide ### Storage vs Continuous Flow: Which Suits Your Household? Storage tank or continuous flow? How each works, running costs, space and peak-demand fit, so you can choose the right system for your Perth home. [Storage vs Continuous Flow: Which Suits Your Household? →](/guide/storage-vs-continuous-flow-hot-water/) Explainer ### What to Expect During a Hot Water System Installation From site assessment to compliance certificate: what actually happens during a hot water installation in Perth, how long it takes and how long the water is off. [What to Expect During a Hot Water System Installation →](/guide/what-to-expect-hot-water-system-installation/) ## Related services ![Licensed gas fitter servicing a continuous flow gas hot water unit in Perth](/images/misc/licensed-gas-fitter-servicing-a-continuous-flow-ga.webp) ### Gas Hot Water Systems Continuous flow and storage gas hot water, natural gas and LPG, installed and repaired by licensed gas fitters. [Gas Hot Water Systems →](/gas-hot-water/) ![Perth plumber servicing an electric storage hot water tank with the element access panel open](/images/misc/perth-plumber-working-on-an-electric-storage-hot-w.webp) ### Electric Hot Water Systems Instantaneous and storage electric hot water, single and dual element, off-peak ready, installed and repaired across Perth. [Electric Hot Water Systems →](/electric-hot-water/) ![Solar hot water collectors and tank mounted on the tiled roof of a Perth home](/images/misc/solar-hot-water-collectors-and-tank-mounted-on-a-t.webp) ### Solar Hot Water Systems Roof-mounted and split solar hot water with gas or electric boosting, STC-eligible, ideal for Perth's climate. [Solar Hot Water Systems →](/solar-hot-water/) Free tool ## Try our Hot Water System Size Calculator Work out the storage litres or continuous flow rating your household needs before you buy. Use the calculator [/tools/water-heater-size-calculator/ →](/tools/water-heater-size-calculator/) ![](/images/hero/licensed-perth-plumber-in-work-polo-finishing-a-ho.webp) 24/7 emergency call-outs available ## Ready to book installation? Supply and compliant installation of new hot water systems, sized right, installed to WA code, with free old-tank removal. Free upfront quote, no obligation. Get a Free Quote [/contact/ →](/contact/) call 08 6243 6734 [tel:+61862436734 →](tel:+61862436734) - check\_circle Fully licensed & insured plumbing and gas professionals - check\_circle All major Australian & German brands serviced - check\_circle 100% customer satisfaction guarantee on all work