Heat Pump Hot Water Installation Cost in Australia
Understanding what drives installation costs — and what's included in a proper quote — helps you compare proposals with confidence and avoid unexpected expenses.
What Does Heat Pump Hot Water Installation Include?
A complete installation quote should be all-inclusive. Here's what to expect — and what to confirm is covered before you sign.
Plumbing Labour
$300–$700
Connecting the new unit to existing hot and cold water lines, fitting pressure relief valve, commissioning.
Electrical Work
$150–$400
Connecting to existing circuit or running a new dedicated 10–15A circuit from the switchboard.
Old System Removal
$100–$250
Disconnection and disposal of your existing hot water system. Should be included in a complete quote.
Rebate Processing
Included
STC assignment and state rebate paperwork. Reputable installers handle this and pass the value on as an upfront discount.
Factors That Can Increase Installation Cost
- •Distance from switchboard requiring new cable run
- •Changing from indoor to outdoor installation (or vice versa)
- •New pipework runs for a different location
- •Roof or elevated installation requiring scaffolding or ladders
- •Switchboard upgrade if the current board cannot accommodate the new circuit
- •Remote or difficult-access location
How to Compare Quotes
When comparing quotes, ensure each one covers: supply, installation, old system removal, all plumbing and electrical work, commissioning, rebate processing, and workmanship warranty. A lower-priced quote that excludes electrical work or old system disposal may end up more expensive overall. Always compare on a like-for-like, all-inclusive basis.
What Does Heat Pump Hot Water Installation Cost?
Prices below are indicative ranges for supply and installation across Australia. Actual quotes will vary by brand, location, installation complexity, and available rebates.
| System Type | Supply | Install | Total (before rebates) |
|---|---|---|---|
| Entry-level all-in-one (200L) | $1,500–$2,000 | $600–$1,000 | $2,100–$3,000 |
| Mid-range all-in-one (270L) | $2,000–$2,800 | $700–$1,200 | $2,700–$4,000 |
| Premium all-in-one (315L) | $2,800–$3,800 | $800–$1,400 | $3,600–$5,200 |
| Split system (270L+) | $3,000–$4,500 | $1,000–$1,800 | $4,000–$6,300 |
| Commercial (500L+) | $5,000–$15,000+ | $1,500–$4,000+ | $6,500–$19,000+ |
$400–$900
Applied upfront by your installer — reduces the sticker price before you pay.
$300–$1,300+
Varies by state — NSW, VIC, SA, WA, ACT, and NT all have active programs.
$1,000–$3,500
Typical out-of-pocket after combining federal and state incentives.
All prices are indicative and based on typical market rates. Actual costs vary by brand, system size, installation complexity, and location. Rebate amounts are estimates only and subject to change. Always obtain at least two written quotes and confirm current rebate eligibility with your installer.
Government Rebates for Heat Pump Hot Water
Australian homeowners can claim federal STCs plus state-specific incentives — often stacked together for maximum savings.
State-by-State Rebate Overview
| State / Territory | Scheme | STC Est. | State Rebate |
|---|---|---|---|
| NSWNew South Wales | Energy Savings Certificates (ESC) | $700 | $600–$900 |
| VICVictoria | Solar Victoria Rebate | $650 | $1000–$1000 |
| QLDQueensland | Queensland Climate Smart Rebate | $800 | $300–$400 |
| SASouth Australia | REPS (Retailer Energy Productivity Scheme) | $700 | $1000–$1300 |
| WAWestern Australia | WA State Energy Rebate | $700 | $1000–$1000 |
| TASTasmania | Energy Saver Loan Scheme | $500 | $300–$500 |
| ACTACT | Sustainable Household Scheme | $600 | Loan up to $15,000 |
| NTNorthern Territory | Smart Energy Grant | $900 | $2500–$5000 |
Rebate amounts are indicative estimates only. Values change with STC spot prices and program availability. Always verify current rebate eligibility directly with your installer or the relevant government authority.
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Your installer will manage the federal STC and state rebate process.
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