You are weighing up a new hot water system and solar keeps coming up, but the prices you find online are all over the place. Here is what an independent guide publishes for Brisbane, how it sits against other system types, and what moves the number. If you would rather talk it through, our hot water plumbing service in Brisbane starts with a look at your setup.
How much does a solar hot water system cost in Brisbane?
What's The Damage, an independent cost guide, puts solar hot water in Brisbane at $3,500 to $7,000, supply and install (October 2026). That is a market range, not a Brigs Plumbing price. The real cost depends on the job, and the way to know is a quote.
How does solar compare with other hot water systems upfront?
Solar is only one option, so it helps to see the published Brisbane ranges side by side. All figures below are supply and install, from the same independent guide, and none of them are Brigs Plumbing prices.
| Job | Published range (Brisbane) | Source |
|---|---|---|
| Solar hot water, supply and install | $3,500 to $7,000 | What's The Damage, October 2026 |
| Electric storage, supply and install | $800 to $3,000 | What's The Damage, October 2026 |
| Gas storage, supply and install | $1,200 to $3,500 | What's The Damage, October 2026 |
| Heat pump, supply and install, before rebates | $3,000 to $6,000 | What's The Damage, October 2026 |
| Old system removal and disposal | $75 to $200 | What's The Damage, October 2026 |
Read the table as a guide to where each system type tends to sit, not as a quote. The solar and heat pump ranges overlap, and the low end of each starts around where the electric storage and gas storage ranges finish. The gas storage figure is shown as a market range for comparison.
What the guide says about Brisbane's climate
What's The Damage notes that Brisbane's warm climate suits heat pump hot water. That is worth keeping in mind when you compare solar with a heat pump, because the two ranges sit close together in the table above. It is a good question to put to anyone quoting you: why this system for this house?
What changes the price of a hot water system?
The ranges are wide because the jobs are different. According to the independent guide, these are the main factors:
- System type and size. The size of the system your household needs affects the price, and each system type has its own range.
- Access. How easily the old unit can come out and the new one can go in affects the work involved.
- Whether the location or fuel type changes. Swapping like for like is simpler than moving the system or changing the energy source it runs on.
- Removal of the old unit. What's The Damage puts old system removal and disposal at $75 to $200 in Brisbane (October 2026), so check whether it is included in any quote you receive.
Why a range is not a price for your home
Two houses on the same street can need quite different work. One may have an easy swap where the old unit sits. The other may need the system in a new spot or on a different fuel type. A published range cannot see any of that, which is why the honest answer to "what will mine cost?" is a quote after someone has looked at the job.
Do rebates change the comparison?
They can, but this guide does not state any amounts. The heat pump range in the table is before rebates, so it is not directly comparable with a figure that already has an incentive taken off. Ask your installer which government incentives apply to your system, and ask for the quote to show clearly what it includes, so you can compare like with like.
Want a firm price for your job?
We look at the job and quote before any work starts, so you know the cost up front.
What should you ask when comparing quotes?
A quote that only gives a single line is hard to compare. Before you decide, ask each plumber:
- Is the price supply and install, and what exactly does it cover?
- Does it include removing and disposing of the old system?
- Will the system stay in the same location, or does the position change?
- Does the fuel type change from what you have now?
- Which government incentives apply to this system?
The answers explain most of the gap between two quotes for what looks like the same job.
What if your hot water has already failed?
If you have no hot water right now, the decision gets compressed, but the same questions still apply. Brigs Plumbing also does emergency plumbing in Brisbane, and we can look at what has failed and talk through your options. If the hot water system is part of a wider plumbing job, our general plumbing services across Brisbane cover the rest of the house.
Compare other hot water systems
How does Brigs Plumbing quote hot water jobs?
Brigs Plumbing is a licensed plumber (QBCC 15161521) based in Thorneside, serving homes across Brisbane and the Redlands, including the Brisbane, Redland, Logan, Moreton Bay and Ipswich council areas. The market ranges above are not our prices. We quote every job before work starts, after looking at what your home needs. To get a quote, call 0435 040 590 or send the details through our contact page.
