Underfloor Heating Cost in Perth (2026)
In Perth, underfloor heating is an occasional comfort upgrade, with slab-on-ground homes suiting it when chosen.
Your underfloor heating details
Below the typical range for this service.
💰 Ways to save
- Mind the floor-height buildup in a retrofit — traditional screed adds around 100mm and can foul doors and skirtings, whereas thin electric mats add only a few millimetres. That alone often decides electric versus hydronic in an existing home.
- Even a DIY mat kit legally needs a licensed electrician for the power, conduit, thermostat and load certification — budget for that, don't assume it's a weekend job.
How we estimate this
Underfloor heating is priced per square metre installed, and the type sets the rate. Electric ranges from $60–$100/m² for slab cable up to $100–$160 for an under-tile mat and $120–$200 for in-screed cable. Hydronic pipework is $45–$100/m² in-slab or $70–$150 retrofit — but that excludes the heat source, which adds a gas boiler at $3,000–$7,000 or a heat pump at $6,000–$15,000 on top.
Pricing reviewed: June 2026.
What a underfloor heating costs in Perth
Perth's dry Mediterranean climate has mild winters, so underfloor heating is a comfort choice rather than a necessity, most often an electric mat under tiles in a bathroom renovation rather than a whole-home system. The upside is the construction: Perth's predominantly single-storey homes on concrete slab suit underfloor heating well when it is chosen, because a slab takes an in-screed electric or hydronic system more readily than a suspended timber floor, and designing it into a new slab is far cheaper than retrofitting.
The warm climate means whole-home hydronic is rarely justified, so most jobs are small, bathroom-sized electric systems. Labour sits a touch below the national average, keeping the fitting reasonable, and a licensed electrician is required to connect an electric system. Isolation can add lead time on specific hydronic components. For a Perth home, underfloor heating is an occasional luxury, and the slab construction is the thing that makes it straightforward to fit when a household does opt for it.
Compare against the national picture: Underfloor Heating Cost in Australia →
Underfloor Heating Cost in other cities
Frequently asked questions
How much does underfloor heating cost?
In 2026, electric runs $60–$200/m² depending on type, and a bathroom mat is about $600–$1,500. Hydronic pipework is $45–$150/m² but the heat source adds thousands — a 200m² hydronic whole-home system with its heat pump reaches $30,000–$50,000.
Electric or hydronic?
Electric suits single rooms like bathrooms and is cheap to install. Hydronic only pays off above about 80m² and is far cheaper to run at scale, so it suits whole-home heating — but mainly in cold-climate states like Victoria, Tasmania and the ACT.
Can I run it on demand?
No, not in-slab or in-screed systems — they take 10–24 hours to warm up, so they have to run on a schedule. That's ideal for steady winter heating but useless for a quick warm-up, where a thin electric mat responds faster.