Sydney, NSW

Email Us


MPJ Plumbing

Solar Hot Water Systems Sydney

Even with Sydney’s more temperate climate, solar hot water systems offer the chance to leverage the sun’s ample, free energy. This allows you to not only protect yourself from the cost of rising energy prices but also decrease your household or business’s carbon footprint, increasing your property’s value at the same time.

MPJ Plumbing Group’s team of experts specialise in the installation, repair, and maintenance of solar hot water systems, providing bespoke, quality service and advice. Our team are available and ready to help you with your solar hot water installation in Sydney and the surrounding areas all year round.

MPJ Plumbing’s’ Promise to Our Customers in Sydney

With more than 25 years of combined experience under our belt, MPJ Plumbing Sydney has earned a reputation for providing a fast, friendly, and professional service with no hidden fees. Our team is able to handle all manner of plumbing work, with no problem too small or too large.

Each member of our team is fully licenced and qualified to carry out installations and repairs, including solar hot water systems. This means we are always available to deliver on-time repairs and installations, including a 24/7 emergency plumbing service.


We promise our customers fair and honest pricing, with no-obligation quotes provided over the phone for all of our work.

Call MPJ Plumbing now to discuss your requirements and arrange a visit from one of our team to structure a free, no-obligation quote.

  • Fully qualified and licenced plumbing team
  • 24/7 emergency plumbing service
  • No obligation, free estimates over the phone
  • Quick response and turnaround
    Lifetime workmanship guarantee

What is a solar hot water system, and why are they becoming one of the most popular options for water heating in Australia?

Solar hot water systems utilise the ample free energy given off from the sun to heat water for domestic and commercial purposes. Australia’s sunny weather makes it ideal for utilising solar hot water systems. Most systems involve the installation of a ground-level or rooftop water storage tank and solar collectors installed strategically on a property’s roof.

While solar collectors vary in configuration and technology, the principle behind the various systems remains the same. Cold water is allowed to flow from the tank through the solar collector using a pump or vacuum system. This allows heat to transfer to the water before returning to the tank ready for use within a property. Hot water sitting at the top of a tank, with heavier, cooler water sitting at the bottom-fed through to the solar collectors.


What Are the Benefits of Solar Hot Water Systems?

The installation of a solar hot water system offers 5 distinct benefits:

Reduced energy bills

Heating water for showers, washing and other everyday activities accounts for 15-27% of the average Australian household’s energy bill. Making use of the Sun’s radiation as a free, powerful, and renewable energy resource energy bills can be reduced significantly.

Reduced carbon footprint

Producing hot water is energy-demanding. As such it is the biggest contributor of greenhouse gases to the average Australian home, generating as much as 25% of emissions. By leveraging renewable energy, households can drastically reduce their carbon footprint and help tackle climate change.


Installation of a solar hot water system is often cheaper than the price of other household power installations. With solar hot water systems recovering their own cost over time, too, they have a distinct advantage over electricity and gas exclusive systems.

Highly efficient

Solar hot water systems are extremely efficient with solar collectors capable of converting 80% of radiation into heat. This can account for as much as 100% of a household’s hot water demand, without the need for gas or electricity.


Solar water heaters are not high-maintenance investments. The issue of wear and tear is alien to them as there are no moving parts to tear and break in the first place. Also, solar water heaters typically last longer than the 20-25 years lifespan stated by manufacturers and all they demand in regards to maintenance is regular simple cleaning.

Two Types of Solar Hot Water Systems

There are two main types of solar hot water systems on the market today:

Close-coupled systems

Coupling together a solar collector with a storage tank, close-coupled systems are a single unit that sits on the roof of a property. Water is heated by passing through the solar collector, transferring heat and returning to the storage tank, forcing cooler water towards the collectors.

Pumped systems

Using either evacuated tubes or flat plates mounted on the roof of a property, pumped systems use a ground-level tank in conjunction with a pump to force water through the solar collectors. The pump circulates water towards the solar collectors creating a heating loop. Pumped systems are ideal for larger households with roof structures unable to support a large close-coupled system.

Having a Hot Water Systems Booster Installed

Supposing you find yourself in a situation where there isn’t enough sunshine for heating water, you’d need an auxiliary heater to boost the water temperature. Here, the boosters can be either electric or gas. Hot water boosters provide additional support for solar systems during the winter months and when solar gain is diminished. These come in both electric and gas varieties.
A booster element is installed inside the storage tank to heat water when necessary. Energy efficiency can still be maintained by heating water during off-peak tariff hours and using more hot water in the mornings to allow solar gain to be recouped.
Using either natural gas or LPG, gas-boosting units are located externally but nearby to a storage tank to heat water on demand when solar gain is incapable of meeting demand.

MPJ Plumbing Can Install and Replace Solar Hot Water Systems for Residents and Commercial Space Owners Throughout Sydney

With our team of plumbing experts familiar with a host of different solar hot water brands and products, we can provide support and advice on even the most complex of issues. We service both residential and commercial properties throughout Sydney and the surrounding areas with thousands of happy customers trusting us to deal with their hot water system to date.

Our solar hot water system services include

  • Installation of both close-coupled and pumped solar hot water system
  • Repair and maintenance of solar hot water systems
  • Alerts when your hot water system is due for a service or is meeting the end of its warranty
  • Replacement of existing hot water systems

Have an existing solar hot water system that needs repairing in Sydney?

With decades of experience among our team members, we are experts at getting to the root of solar hot water system problems. We have the right tools, experience and know-how to diagnose and repair any issue your system may have.

As the known solar hot water systems repairs throughout Sydney, MPJ Plumbing can diagnose and fix any problem, including

  • Circulation pump issues
  • Open circuits and loose connections
  • Fluid leakage
  • Lack of hot water
  • Diagnose unusual noises
  • Hot water pressure and flow issues
  • Solar collector problems

Emergency Solar Hot Water Repairs Throughout Sydney

MPJ Plumbing proudly serves its local area, providing emergency plumbing repairs throughout Sydney. With many plumbing emergencies capable of causing considerable damage to property and endangering the wellbeing of occupants, we offer an emergency plumbing line that will put you in touch with an expert 24 hours a day, 7 days a week.

Call MPJ Plumbing now on (02) 9053 8741 to get your plumbing emergency solved right away.

What locations does MPJ Plumbing service in Sydney?

Through a collaboration of dedicated experts, MPJ Plumbing serves the entirety of Sydney and the surrounding areas, from Sutherland Shire to the Northern Beaches. We understand the importance of local knowledge, especially when it comes to emergency situations where time is a critical factor. Our experts know Sydney inside out meaning they will arrive promptly and solve your issue quickly, without fuss.

As well as providing emergency plumber services in Sydney itself, other areas we serve include

Contact MPJ Plumbing Group Now

Whether you have a plumbing emergency, you are interested in our solar hot water installation service, or your existing system needs repair or maintenance, contact MPJ Plumbing now. Our team are ever ready and on hand to help, 24/7.

Simply email us at info@mpjplumbing.com.au or call now on (02) 9053 8741.

Frequently Asked Questions

MPJ Plumbing provides a conversion service that allows existing electric hot water systems to switch to renewable, solar energy. This process involves the retrofitting and replacement of certain components within your existing configuration and requires an onsite inspection from one of our experts.
We also provide the conversion of gas-powered hot water systems to solar. Our team can both completely replace a gas system or augment it with renewable solar energy. While over-the-phone advice can be given, a visit from an MPJ team member will allow us to best assess the possibilities for your property.
While solar gain will be diminished during the winter months, the solar collectors used in our systems can still provide heated water all year round. During an Australian summer, you can expect solar hot water systems to be capable of meeting as much as 100% of your property’s hot water demand, with a minimum of 25% met during colder, less sunny periods of the year.
Installation costs range between $4000-$8000 and can vary depending on a property’s existing setup and household demand. Larger households will need a bigger storage tank, for example, with potentially more solar collectors whereas smaller properties with fewer occupants will be able to make use of smaller, less costly systems. In either case, solar hot water systems tend to recoup their own cost over the course of 6-10 years in terms of energy bill savings. With an expected lifespan of at least 20-25 years, this translates into potentially 15 years or more of free energy.