Solar Hot Water Systems Sydney — Fast, Licensed & Guaranteed
Cut your energy bills with a solar hot water system. We supply, install and repair solar hot water from all major brands. Servicing emergency plumbing repairs and scheduled plumbing work across New South Wales — providing a complete solar hot water service from supply to install to repair, with quality service guaranteed. Expert advice on government rebates.
Licensed & insured (Lic #306457C) · ABN 56 603 812 460 · Family-owned, servicing all of Sydney
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Why Sydney Customers Choose Mr Splash Plumbing
Over 1,200 verified Google reviews, a 4.9-star rating, and 15+ years as a family-owned plumbing company. Customers highly recommend us because our customer service team answers every call within three rings, our professional plumber technicians arrive on time with fully-stocked vans, and every quote is fixed price — no hourly billing, no scope creep, no surprise invoices.
We deliver high quality workmanship on every job — from a single dripping tap to full sewer line replacements and commercial pipe relining. Our great service shows up in the small things: shoe covers indoors, drop sheets on every floor, the job site cleaner than we found it, and a written report photographed and emailed before we leave. That's why 73% of new work in 2026 is referral-based — Sydney homeowners and businesses keep recommending us to neighbours, friends and strata committees.
Solar Hot Water Sydney — Supply, Install and Service
Sydney's climate is one of the best in Australia for solar hot water — roughly 2,500 sunshine hours a year delivers free heating for a family of four with a properly-sized system. Mr Splash Plumbing supplies and installs every major Australian solar hot water brand, plus services and repairs any existing system across Greater Sydney and surrounding suburbs.
How Solar Hot Water Systems Work
Roof-mounted evacuated tubes or flat-plate collectors absorb sun energy and transfer it via a closed glycol loop (or direct water circulation) to a storage tank. Tanks can be roof-mounted (thermosiphon — no pump needed) or ground-level (with a controlled circulation pump). A backup gas or electric booster kicks in only when sun is insufficient, typically 10–20% of annual energy.
Solar Hot Water Sizing for Sydney Households
- 1–2 people → 180L tank, single panel/tube row
- 3–4 people → 270L tank, dual panel/tube row
- 5+ people → 315L+ tank, larger collector area, possibly dual-tank
- Apartment / unit → 160L compact roof-mount or heat pump alternative
Rebates and Service Across New South Wales
NSW residents are eligible for Small-scale Technology Certificates (STCs) on new solar hot water installs — typically -2,500 reduction off the upfront cost. We handle all STC paperwork as part of the install. Servicing emergency plumbing repairs and scheduled plumbing work across New South Wales — providing a complete solar hot water service from supply to install to repair, with quality service guaranteed. Call 1300 677 752 for a fixed price quote.
We Are Licensed, Accredited & Insured Plumbers in Sydney
How Solar Hot Water Systems Work
At Mr. Splash Plumbing, we believe that solar Solahart hot water systems are the best addition to your home.
Benefits of Solar Hot Water in Sydney
Solahart is one of the best known names in the solar energy industry of Australia. It’s an old, well established company that started out as plumbers in 1901 and introduced their first solar hot water system in 1953. They were one of the first companies to realize the potential of solar water heating. After all, Australia enjoys abundance of sunshine, why not use it? The Australian company now has a global presence and operates in over 80 countries. They have also worked on improving their products and making them more efficient. We will always recommend Solahart hot water systems to those who want to go green and save money on energy bills.
Solahart has a wide range of products that would suit different needs and budgets. Most people are under the impression that installing solar hot water systems is expensive. It doesn’t have to be. You just need to choose the right one. Solahart offers the following products:
Thermosiphon Roof Mounted System
This system, as the name suggests, is placed on the roof. It uses the thermosiphon principle to heat water. We know that dark objects tend to absorb heat and the hot water rises. These facts are used to create a great water heating system. The solar collecters are coated with a dark, heat absorbent material. The water in the collectors is heated. The heated water rises and is deposited in the tank, which forces the cooler water in the tank to go back to the collectors to be heated again. As the collectors and the tank are both on the roof, the water remains heated for a longer period of time, making the system efficient.
Split Systems
The split systems are very popular amongst home owners because they don’t stand out like a sore thumb. The collector is placed on the roof and it is discreet and won’t disrupt the looks of your home. The hot water tank is placed on the ground, somewhere out of sight. An electric pump called the circulator circulates the water between the tank and the collector, making sure that there’s enough hot water available at all times.
Heat Pump
Solahart hot water systems using heat pumps are also very energy efficient. They’re a great alternative to homes where the traditional solar water heaters just can’t be installed. It will channel the heat in the ambient air to heat water.
If you want to know more about solar hot water systems, feel free to get in touch with us at Mr. Splash Plumbing. You can fill in this contact us form with your questions and comments. If you want to book a visit or get a quote, you can fill in this booking form. In case of an emergency, just give us a call on 1300 677 752.
Why Sydney Households Trust Mr Splash for Their Solar Hot Water Service
Solar hot water repairs are one of our most-requested call-outs every Sydney spring — after a cold winter, customers want their solar power system tuned for the warmer months. Whether you have a thermosiphon system, a split system with a ground-level tank, or a heat pump system as a backup, our team delivers reliable hot water service that's built for the long term.
We offer comprehensive hot water system services across the full lifecycle — supply, install, annual maintenance, and emergency repair — for every major Australian brand. Energy efficient systems save Sydney households $400-700 per year compared to electric storage, with a typical payback period of 4-7 years. Call 1300 677 752 for a fixed-price solar quote.
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Jon Tsingolis
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