HEAT PUMP FINDER · BUYER RESOURCES

Heat-Pump Installation Costs: What to Ask Before Accepting a Quote

The price worth comparing is the completed job at your home. A low advertised system price is not enough to tell you the installed total, what happens if extra work is needed, or what you will spend to run it.

Ask for one final total and a clear list of assumptions

Begin with the exact product model, tank capacity, quoted installation scope and applicable taxes. Then ask the business to identify anything it cannot price until a site assessment. A quote can be useful before a visit, but its assumptions need to be visible.

Rather than publishing a universal price that could mislead, this checklist helps you make real offers comparable. We do not collect live installer quotes or claim an average installed price.

Seven costs to resolve before booking

1. Equipment: Which model and included accessories are being supplied? Is delivery included?
2. Plumbing: What connection work, valves and pipework are in the scope? Is moving the tank included?
3. Electrical work: Who assesses the existing supply, and what is included if changes are required?
4. Site preparation: Is a base, mounting work or other preparation needed? Who supplies it?
5. Drainage: Ask the installer to specify how drainage is addressed, rather than leaving it as an unspecified extra.
6. Access and removal: Are difficult access, delivery and disposal of the existing system covered?
7. Aftercare: Separate product warranty from workmanship commitments. Ask about labour, travel or call-out costs and whom to contact.

Do not subtract the same incentive twice

If the quote already shows a discounted amount, do not deduct the advertised incentive again. Ask for the amount before incentives, each discount applied and the final customer payment. Confirm the paperwork and eligibility directly with the installer. See NSW’s current hot-water incentive guidance (opens in a new tab) and our pre-installation checklist.

Installation cost and running cost are separate decisions

Australian Government guidance (opens in a new tab) explains the main hot-water technologies and notes that heat pumps extract heat from the air. Your actual running cost is not established by the technology name alone.

For any proposed savings estimate, ask the business to write down the current system, household hot-water demand, electricity tariff, operating schedule and solar assumptions used. A sales estimate based on another household is not a promise for yours. If switching away from gas, ask your retailer what charges would remain if you keep other gas appliances, and what cancellation or disconnection arrangements would apply if you stop gas supply entirely.

A simple decision rule

Compare written offers with the same brief. Resolve missing items before treating a lower price as better value. Record the quote expiry, deposit, payment milestones, installation date and how variations must be approved. Keep the final agreed documents, not just a screenshot of an advertisement.

Use the full quote-comparison guide and browse Sydney installers. This guide is general information, not a design specification, quote or recommendation.