Solar Hot Water
Solar Hot Water in Adelaide
Adelaide's solar exposure makes solar hot water economically genuine. We match you with three CBS-licensed plumbers who handle the install and the STC paperwork.
When you need a solar hot water plumber
Adelaide has some of the best solar exposure in Australia. For households with predictable hot water demand and a 10+ year home tenure, solar hot water remains a strong choice - especially as a replacement for an aged Solahart or similar system.
Signs you need this service
- Want maximum independence from grid electricity.
- Existing solar PV makes a heat pump less attractive (timing of demand).
- Replacing an old Solahart or similar roof tank.
- New build with optimal roof orientation.
What a matched plumber does
- Roof tank (gravity feed) - traditional, lowest cost, most visible.
- Split system (panels on roof + tank on ground) - newer, lower visual impact.
- Electric or gas boost selection based on usage pattern.
- STC rebate paperwork handled by the plumber.
Solar Hot Water - indicative cost
Indicative$3,800 – $6,500
Typical Adelaide job: $4,800
Indicative range drawn from real Adelaide jobs. Your 3 matched plumbers quote the exact fixed price before any work starts.
See all Adelaide cost guidesHow the matching works
1. Tell us the job
One short form, about two minutes. Add photos if you have them.
2. Get 3 local matches
CBS-licensed independent plumbers who cover your Adelaide suburb.
3. Compare and choose
Three itemised quotes, side by side. No obligation, no fee to you.
What to know about solar hot water in Adelaide
Modern solar hot water systems come in two layouts: roof tank (the traditional Solahart pattern, where the tank sits on the roof above the panels) and split system (panels on the roof, tank on the ground). Split systems are now more common in new installs because they preserve the home's appearance and make maintenance easier.
Federal STCs (Small-scale Technology Certificates) typically reduce the upfront cost by $1,200 to $1,800. Network plumbers handle the STC paperwork as part of the install. The quoted price you see is post-STC.
Solar hot water systems still include an electric or gas boost element for cloudy stretches. The boost runs only when needed - typical winter contribution from solar is 50-70%; summer is 90%+ for an Adelaide install.
Solar Hot Water in Adelaide - questions
Roof-tank install: $3,800 to $5,200 post-STC. Split system install: $4,800 to $6,500 post-STC. Federal STC rebate typically $1,200 to $1,800 depending on system size. Adelaide's solar exposure is among the best in Australia - the payback is typically 4 to 7 years.
Solar hot water is most cost-effective if you have ideal roof orientation, expect to stay 10+ years, and have predictable hot water usage. Heat pump is more flexible and easier to retrofit. PV with electric tank works only if you have excess solar generation during peak heating hours. Your matched plumber will model your situation.
Yes - Adelaide gets 7+ hours of usable solar even on winter days. All systems include a gas or electric boost element for cloudy stretches. Typical winter solar contribution: 50-70%; summer: 90%+.
Roof tank is cheaper and more proven but the tank is visible from street level. Split system separates panels (on roof) from tank (on ground), preserving the home's appearance and making maintenance easier. Most premium installs today are split.
Network plumbers always inspect the roof before quoting - structure, orientation, shading, age. They'll tell you honestly if your roof is suitable. Older tile roofs may need flashing replacement; metal roofs are usually easier.
Related plumbing services
Compare 3 free quotes for solar hot water in Adelaide
Tell us the job once. We match you with 3 independent local plumbers within 24 hours. No call centres, no obligation, no nasty surprises.
Every plumber CBS-licensed under the SA PGE Act 1995