Hydronic Heating Cost Calculator
Estimate the cost of hydronic heating in Australia. Choose the home size, the system type (panels or in-slab) and whether it is a new build or retrofit.
Your hydronic heating details
Your estimate sits within the typical range.
Hydronic heating is comfortable, quiet and even, and cheap to run, but the install is a significant upfront cost, best value when built into a new home.
Where the money goes
Estimated breakdown for your configuration
💰 Ways to save
- Install in-slab hydronic during a new build rather than retrofitting later.
- Panel radiators are cheaper to install than underfloor in an existing home.
or from $72/week over 5 years , indicative finance
How we estimate this
Hydronic heating in Australia typically costs $8,000 to $35,000 in 2026 depending on home size, system type and heat source. Panel radiators in a small home are cheapest; whole-home underfloor retrofit with a heat pump reaches the top.
Pricing reviewed: October 2026.
Doing more than just hydronic heating?
Build a combined estimate across every part of your project in one place.
Pricing reviewed October 2026. Indicative Australian costs, not a quote.
Understanding hydronic heating costs in Australia
Hydronic heating in Australia typically costs $8,000 to $35,000 in 2026 depending on home size, system type and heat source. Panel radiators in a small home are cheapest; whole-home underfloor retrofit with a heat pump reaches the top.
It delivers comfortable, even, quiet heat at a low running cost, but the install is a real upfront investment. In-slab systems are far cheaper installed during a new build than retrofitted later.
Frequently asked questions
How much does hydronic heating cost in Australia?
Typically $8,000 to $35,000 in 2026 depending on home size and system type. Panel radiators are cheapest; whole-home underfloor retrofit costs the most.
Is hydronic heating expensive to run?
No, it is one of the cheaper and more comfortable ways to heat a home, especially with a heat pump boiler. The main cost is the upfront installation.
Are you a trades business?
Everyone on this page is working out what hydronic heating costs because they are ready to hire. Put your business right beneath the calculator, in your state, so you are who they find. From $50/mo.