# Solar Hot Water Perth | Install & Repair | HWS Perth > Perth solar hot water installation and repairs. Roof-mounted and split systems with gas or electric boosting, STC-eligible. Free quotes, call the specialists today. URL: https://perthhotwatersystem.com.au/solar-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 for Perth Homes Last updated: 10 August 2026 Roof-mounted and split solar hot water with gas or electric boosting, STC-eligible, ideal for Perth's climate. - 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 ## Solar Hot Water WA LICENSED verified PLUMBER & GAS - check\_circle Roof-mounted and split solar systems - check\_circle Gas and electric boosting options - check\_circle STC rebate eligibility check - check\_circle Solahart, Edwards and Chromagen brands INDICATIVE From $2,500 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 ## Solar hot water suits Perth better than almost anywhere Perth’s sunshine makes solar hot water a genuinely smart, eco-friendly choice. We install and repair roof-mounted close-coupled and split solar systems with gas or electric boosting, on brands including Solahart, Edwards and Chromagen. We check your roof, your boosting needs and your STC rebate eligibility, then quote it all up front. The principle is simple, and it is the most passive of the hot water system Perth [/ →](/) options we install. Collectors on the roof absorb solar radiation and transfer that heat into water, which is stored in an insulated tank. A booster covers the gap when the sun has not delivered enough, which in Perth means cloudy winter stretches and days when demand spikes. Because water heating is roughly a quarter of a typical household’s energy bill, shifting most of that load onto free sunshine changes the bill noticeably. ![Plumber on a roof fitting flat plate solar collectors and connecting the flow and return lines](/images/misc/plumber-working-on-a-tiled-roof-fitting-flat-plate.webp) ### Close-coupled, split, flat plate and evacuated tubes **Close-coupled thermosiphon** systems put the tank directly above the collectors on the roof. Hot water rises naturally, so there is no pump and no controller to fail. Simplest and cheapest to install, but it puts real weight up high, which not every Perth tile roof should carry. **Split systems** keep the tank at ground level and use a small pump and controller to circulate water up to the collectors and back. They cost more, but the roof only carries the collectors, servicing is far easier, and the tank is out of the weather. **Flat plate collectors** are the traditional choice: robust, cost-effective and well suited to Perth’s climate. **Evacuated tubes** perform better on cold mornings and in shoulder seasons because each tube is individually insulated, and they suit properties in the hills or outer east where overnight temperatures drop further. ### Boosting: gas or electric Every solar system needs a booster. If you have mains natural gas, a gas booster is usually cheaper to run and fires quickly. Without mains gas, an electric booster is the answer, and it can be set to run on an off-peak tariff so top-up heating happens at the cheapest rate. The mistake we see most is a booster set to run far too eagerly, effectively turning an expensive solar system into an ordinary electric one. Correct commissioning matters, and it is something we check on every service. ### What we repair on existing solar systems Circulation pumps and controllers on split systems, failed boosters, leaking collector connections, seized frost protection valves, and the sacrificial anode rod in the tank. Perth’s hard water is unkind to anodes, and a spent one leads to a corroded tank far earlier than the collectors’ service life would suggest. ## What solar hot water costs in Perth Installed systems generally run from around $2,500 for a basic close-coupled setup up to $6,500 for a premium evacuated tube system, before rebates. Western Australia has no state rebate, but federal Small-scale Technology Certificates typically take $800 to $1,500 or more off an eligible system at point of sale. We create and claim the certificates so the discount lands in your quoted price. If you are still weighing options, read how solar hot water works in Perth’s climate [/guide/how-solar-hot-water-works-perth/ →](/guide/how-solar-hot-water-works-perth/) , then is solar hot water worth it in Perth [/guide/is-solar-hot-water-worth-it-perth/ →](/guide/is-solar-hot-water-worth-it-perth/) for the payback maths, and heat pump versus solar [/guide/heat-pump-vs-solar-hot-water/ →](/guide/heat-pump-vs-solar-hot-water/) if roof access is the sticking point. ## What's included - check\_circle Roof-mounted and split solar systems - check\_circle Gas and electric boosting options - check\_circle STC rebate eligibility check - check\_circle Solahart, Edwards and Chromagen brands - check\_circle Repairs, boosters and frost protection Transparent pricing ## How much does solar hot water cost in Perth? Federal STCs typically take $800 to $1,500 or more off an eligible system at point of sale. We create and claim the certificates for you. ### Close-coupled Tank on the roof, thermosiphon, no pump $2,500 - $4,000 per system installed, before STC rebate - check\_circle Flat plate collectors - check\_circle No pump or controller - check\_circle Electric or gas boosting - check\_circle Lowest install complexity Get a Free Quote [/contact/ →](/contact/) Most common ### Split system Tank at ground level, pumped circuit $3,500 - $5,500 per system installed, before STC rebate - check\_circle Tank stays off the roof - check\_circle Better for tile roof loading - check\_circle Pump and controller included - check\_circle Easier future servicing Get a Free Quote [/contact/ →](/contact/) ### Evacuated tube Highest efficiency, best cold-morning performance $4,500 - $6,500 per system installed, before STC rebate - check\_circle Evacuated tube collectors - check\_circle Strong winter performance - check\_circle Frost protection included - check\_circle Premium brand options 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 solar hot water? bolt ### Perth sun does the work Perth gets among the highest sun hours of any Australian capital. Solar hot water performs here in a way it simply does not in colder states. savings ### STC rebate handled We create and claim the federal certificates so the discount appears in your quote as a point-of-sale reduction, not a form you chase later. verified\_user ### Roof loading assessed A close-coupled tank puts real weight on the roof. We check the structure and recommend a split system where that is the safer answer. engineering ### Right booster choice Gas boosting suits mains-gas homes, electric suits everyone else and can run on off-peak. We match it to your existing supply. local\_shipping ### Repairs, not just installs Failed pumps, controllers, boosters, frost valves and leaking collectors. We service existing solar systems, whoever installed them. handshake ### Solahart, Edwards, Chromagen We install and repair the established Australian solar brands, chosen for parts availability rather than the biggest margin. Process ## How our solar hot water works 01 search ### Roof and site check We assess roof orientation, pitch, shading, structural loading and where the tank can sit before recommending close-coupled or split. 02 request\_quote ### Boosting and rebate We work out whether gas or electric boosting suits your supply, check STC eligibility, and put the rebate straight into the quoted price. 03 build ### Install collectors and tank Collectors are mounted and flashed, flow and return lines run, the tank set, and on split systems the pump and controller commissioned. 04 task\_alt ### Commission and certify We check circulation, set the booster and tempering valve, confirm frost protection is active and issue the compliance certificate. ## Need solar hot water 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 ## Solar Hot Water jobs around Perth Real jobs from around the metro. Click any image to enlarge. Results ## See the difference ![Before: Solar Hot Water transformation](/images/features/ageing-electric-storage-tank-beside-a-perth-home-w.webp) Before ![After: Solar Hot Water transformation](/images/features/same-home-after-solar-hot-water-installation-with-.webp) After Solar Hot Water transformation ## How Hot Water System Perth compares | Feature | Typical provider | HWS Perth | | --- | --- | --- | | STC rebate | You claim it yourself | Created, claimed and deducted upfront | | Roof assessment | Assumed suitable | Orientation, shading and loading checked | | Booster selection | Whatever comes with the kit | Matched to your existing gas or power supply | | Frost protection | Overlooked | Fitted and verified at commissioning | | Existing solar repairs | Install-only businesses decline | Pumps, controllers and boosters serviced | Reviews ## What customers say about our solar hot water Rated 4.9 from 150+ Google reviews across the Perth metro. starstarstarstarstar > "They actually got on the roof and checked the pitch and shading before quoting. Ended up recommending a split system rather than putting the tank up there." Karen S. Riverton starstarstarstarstar > "Solar pump packed up after eight years and two places just wanted to sell me a whole new system. These guys replaced the pump and controller and it's fine." Dave N. Osborne Park starstarstarstarstar > "The rebate came straight off the quote so there was no chasing paperwork. Bill dropped in the first quarter." Elena M. Canning Vale Got questions? ## Solar Hot Water FAQs ### Does solar hot water work in winter in Perth? expand\_more Yes. Perth's sun hours stay high enough year-round that solar carries most of the load even in winter, and the booster covers cold, overcast stretches. Evacuated tube collectors handle cold mornings better than flat plate if winter performance is your priority. ### What is the difference between close-coupled and split systems? expand\_more Close-coupled puts the storage tank on the roof directly above the collectors and uses thermosiphon, meaning hot water rises naturally with no pump. Split keeps the tank at ground level and uses a small pump and controller to circulate. Split costs more but takes the weight off your roof and makes future servicing far easier. ### Do I need a booster with solar hot water? expand\_more Yes, every solar system has one. It tops up the tank during cloudy stretches and periods of unusually high demand. Gas boosting is generally cheaper to run where you have mains gas, while electric boosting suits homes without gas and can run on an off-peak tariff. ### Is solar hot water worth it in Perth? expand\_more For most homes with decent north-facing roof access, yes. Water heating is roughly a quarter of a household energy bill and solar can eliminate most of that. Add the federal STC rebate and payback typically lands within a few years, well inside the system's service life. ### How much does solar hot water cost in Perth? expand\_more Installed systems generally run from about $2,500 for a basic close-coupled setup to $6,500 for a premium evacuated tube system, before rebates. The federal STC rebate usually takes $800 to $1,500 or more off that at point of sale, which we handle for you. ### Will solar hot water work on my roof? expand\_more The key factors are orientation, pitch, shading and structural capacity. A north-facing section with clear sun through the middle of the day is ideal. Where the roof is heavily shaded or cannot carry a close-coupled tank, a split system or a heat pump is usually the better answer, and we will tell you which. ### How long do solar hot water systems last? expand\_more Collectors commonly last 15 to 20 years or more, with the tank, pump and controller typically the first components to need attention. Anode rod replacement matters here too, and Perth's hard water makes it more important than the brochure interval suggests. ### Can you repair my existing solar hot water system? expand\_more Yes, whoever installed it. The most common repairs are failed circulation pumps, faulty controllers, dead boosters, leaking collector connections and seized frost protection valves. It is often far cheaper than replacing the whole system, and we will tell you honestly when it is not. ### Solar or heat pump, which should I choose? expand\_more Solar wins where you have good north-facing roof access and want to use free sunshine directly. A heat pump wins where the roof is shaded, congested with PV panels, or structurally unsuitable, since it sits at ground level and needs no collectors. Both attract STC rebates and both cut running costs dramatically against electric storage. ### Do I need frost protection in Perth? expand\_more It is standard on systems installed here and does matter in the hills and outer eastern suburbs where overnight temperatures drop lower than the coastal metro. Frost valves and freeze-protection circulation are checked at commissioning and worth testing at each service. ### 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 solar hot water. Explainer ### How Solar Hot Water Works in Perth's Climate Perth's sunshine makes solar hot water smart. How collectors, thermosiphon and split systems and boosters work, and why they suit Perth homes. [How Solar Hot Water Works in Perth's Climate →](/guide/how-solar-hot-water-works-perth/) Decision guide ### Is Solar Hot Water Worth It in Perth? Savings & Payback Is solar hot water worth it in Perth? Upfront versus lifetime savings, the STC-adjusted price, realistic payback periods and how it compares to a heat pump. [Is Solar Hot Water Worth It in Perth? Savings & Payback →](/guide/is-solar-hot-water-worth-it-perth/) Explainer ### Solar Hot Water Booster: Gas vs Electric Boosting Explained Which booster for your solar hot water, gas or electric? Compare running cost, existing-supply fit and cloudy-day performance for Perth homes. [Solar Hot Water Booster: Gas vs Electric Boosting Explained →](/guide/solar-hot-water-booster-gas-vs-electric/) ## Related services ![Heat pump hot water unit installed beside a Perth home](/images/misc/heat-pump-hot-water-unit-installed-beside-a-perth-.webp) ### Heat Pump Hot Water Systems High-efficiency heat pump hot water, STC rebate-eligible, cutting the roughly 25% of energy bills used to heat water. [Heat Pump Hot Water Systems →](/heat-pump-hot-water/) ![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) ### Hot Water System Installation Supply and compliant installation of new hot water systems, sized right, installed to WA code, with free old-tank removal. [Hot Water System Installation →](/hot-water-system-installation/) ![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/) Free tool ## Try our Hot Water Running Cost Calculator See what solar hot water could save you each year compared to standard electric storage. Use the calculator [/tools/energy-cost-estimator/ →](/tools/energy-cost-estimator/) ![](/images/hero/licensed-perth-plumber-in-work-polo-finishing-a-ho.webp) 24/7 emergency call-outs available ## Ready to book solar hot water? Roof-mounted and split solar hot water with gas or electric boosting, STC-eligible, ideal for Perth's climate. 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