TL;DR: In 2026, a professionally installed solar pool heating system in Australia costs $4,500 to $5,500 for a pool up to 20 sqm, $5,500 to $6,500 for a pool of 20 to 40 sqm, and from $6,500 for pools over 40 sqm. That price covers the panels, the controller and the installation. Running costs are minimal, because the only thing drawing power is the pump.
Search this question and you get answers ranging from $300 to well past $6,000. That spread is not much use when you are trying to budget, and it exists because two completely different products are being averaged together: kits a homeowner installs over a weekend, and a professionally installed system that goes on your roof and stays there for decades.
We make Heliocol solar pool heating and we install it across Australia, so the numbers below are ours. They are what we actually charge in 2026, not a national average scraped from quote-request forms.
Our solar pool heating prices sit in three bands, set by the surface area of your pool.
| Pool size | Installed price (AUD) |
|---|---|
| Up to 20 sqm | $4,500 to $5,500 |
| 20 to 40 sqm | $5,500 to $6,500 |
| Over 40 sqm | From $6,500 |
Each of those figures includes all three parts of the system: the solar collector panels, the controller that decides when to send water to the roof, and the installation itself. There is no separate electrician’s bill and no preliminary site works, because a solar system needs neither.
They are indicative bands, not quotes. A site inspection sets the final number, and the things that move it are on your roof rather than in your pool. A single-storey home with a north-facing roof and a short pipe run sits at the bottom of its band. A two-storey home with a tiled hip roof and a plant room at the far end of the yard sits at the top.
The panel layout depends on what you are mounting to, which is why roof type changes the panel layout more than most people expect.
A solar pool heater price quoted in a search result will often sit well below our bands. That is because three different things are being counted as one product.
DIY kits. Mat and strip kits sell for a few hundred to a couple of thousand dollars. They are real products and they do heat water. You buy the components, you do the mounting, and you carry the risk of anything you attach to your own roof.
Budget strip systems. These are professionally installed but built from rubber or plastic strip rather than a rigid panel. They cost less up front and they are a genuine option. They also have a shorter service life, which is the trade you are making.
Quote averages from lead-generation sites. Comparison and quote-matching sites publish averages built from all of the above plus full installs, so the headline figure lands somewhere in the middle and describes nothing you can actually buy.
What the higher price buys is the part you never think about again. Our systems carry a 25 year warranty, which is longer than most pool heating equipment lasts, let alone stays covered. Over that period the up-front difference stops being the interesting number.
This is where the case for solar stops being an argument and becomes arithmetic. The system burns no fuel. The only running cost is the electricity to move pool water up to the panels and back.
The Government of South Australia publishes hourly figures for pool equipment. A solar water heater pump draws 0.5 to 0.75 kW and costs $0.18 to $0.26 an hour to run. A gas pool heater burns 100 to 425 MJ an hour, which works out at $4.00 to $17.00 an hour [1].
Across a full season the gap compounds. Finder, using a rate of 33 cents per kWh based on the Australian Energy Regulator’s default market offer for July 2026, puts the monthly cost of heating a pool over a six month season at $16 to $40 for solar, $50 to $170 for an electric heat pump, and $100 to $250 for gas [2].
Put that over one six month season:
For context, Finder puts the total cost of running a standard backyard pool at $1,200 to $2,500 a year, heating included [2]. Gas heating alone can account for most of that. Solar barely registers against it.
If you want the two systems compared properly rather than on running cost alone, we have written the full solar versus heat pump comparison, and a separate guide to how pool heat pumps work.
Take the midpoints of the published season figures above. Solar costs roughly $168 a season to run, an electric heat pump roughly $660, and gas roughly $1,050 [2].
Against a heat pump, that is about $492 a year back in your pocket. Against gas, about $882 a year. Those are running costs only, on a six month season at 33 cents per kWh, and they assume you would otherwise have installed and run one of the alternatives.
The capital cost of a heat pump is broadly comparable to solar, so the running-cost gap is close to the whole story. On those numbers, the difference pays back the price of the panels within the warranty period several times over, and the system keeps running after that.
The more useful way to think about it is cost per swim season across the life of the system. A 25 year warranty spreads a one-off $5,500 across a lot of summers. A heat pump warranty typically runs one to five years, and the replacement is another capital purchase.
After 28 years in this industry and more than 7,500 residential systems, the pattern is consistent: the pool is rarely what decides the price. The roof is.
Roof area, pitch and orientation. You need enough collector area to match the pool surface, and a north-facing roof does more with less. A poorly oriented roof needs more panels for the same result, and more panels is more cost.
Pipe run length. The distance between the plant room and the panels adds pipe, labour and pumping load. A pool at the opposite end of the block from the equipment is the single most common reason a quote comes in above the band.
Your existing pump. Sometimes the filtration pump already on site can carry the extra load. Sometimes it cannot, and a booster is needed. This is worth checking before you compare quotes, because one quote may include it and another may not.
Storey height and roof access. Two storeys, steep pitch or difficult access all add installation time.
The controller. The solar controller is not an optional extra. It is what stops the system pumping water to a cold roof and cooling your pool, which is exactly what an uncontrolled system does on an overcast afternoon. If a quote leaves it out, the quote is not comparable.
If any of this is unfamiliar, start with how the system moves water through the panels. Where a pool has to hold a set temperature year round, a hybrid solar and heat pump setup is usually cheaper to run than heat pump alone.
The return is not only the lower bill. It is the months you get back.
In our experience across Australian installs, solar heating adds around four months to a typical swim season, which for many pools roughly doubles the time the pool is usable. Queensland and northern Western Australia sit at the top of that range. New South Wales, Victoria and South Australia usually land at three to four months. Cooler southern areas are at the lower end but still gain a season’s worth of swimming.
Those are our own figures from our own installs, not an industry statistic. A pool cover changes them for the better in every region, because overnight heat loss is what you are fighting.
More detail on the seasonal side: how much longer you can swim.
We supply and install through our dealer network in Queensland, Western Australia, New South Wales, South Australia and Victoria.
Two of our territory pages have local detail on systems, installers and typical conditions: Victoria and Adelaide and South Australia.
Between $4,500 and $5,500 for a pool up to 20 sqm, $5,500 to $6,500 for 20 to 40 sqm, and from $6,500 for pools over 40 sqm. Those are our 2026 installed prices and they include panels, controller and installation. A site inspection sets the final figure, mostly based on your roof.
On running cost, yes, and the published figures are not close. Solar costs $16 to $40 a month to run over a six month season against $50 to $170 for a heat pump and $100 to $250 for gas [2]. Add roughly four extra months of swimming a year and the case is straightforward.
Our systems carry a 25 year warranty, and in practice they run well past it with no major repairs. That is the main structural difference against a heat pump, which typically carries a one to five year warranty and has moving parts and refrigerant that wear. Panels have no moving parts at all.
A pool cover, before any heating system. It costs the least and stops the overnight heat loss that everything else is working against. For an actual heating system, solar is the cheapest to run by a wide margin, because the fuel is free and only the pump draws power [1].
As a starting point, collector area should roughly match your pool’s surface area, adjusted for roof orientation and how long a season you want. A north-facing roof needs fewer panels than an east or west one for the same result. We size the array at the site inspection rather than from pool volume alone.
Written by Paul Verheyden, National Sales Manager at Magen Eco Energy Australia. Paul has 28 years in the pool heating industry and has sold more than 7,500 residential filtration and pool heating systems, along with hundreds of commercial installations including council swimming pools.
