How Much Does a Underfloor Heating Installation Cost in the UK? (2026 Guide)
The UK average cost of a underfloor heating installation is between £2,000 and £6,000 for a 3-bedroom home.
Prices vary by up to 40% depending on your region. Select your area below for local estimates.
Supply and installation of wet (hydronic) or electric underfloor heating, including manifold, pipework or mats, and thermostat. The total cost depends on your location, property size, and the complexity of the work. Labour costs in London and the South East are typically 20-40% higher than the national average, while the North East, Wales, and Scotland tend to be 10-20% lower.
Cost Calculator
Estimated underfloor heating installation costs in the UK, adjusted for local labour rates.
Estimates based on a 3 bed semi-detached property in the UK. Labour rates reflect the local cost of living. Materials are priced at national averages. Always obtain at least 3 quotes from local tradespeople.
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Underfloor Heating Installation in the UK: Frequently Asked Questions
Wet or electric underfloor heating — which is better?
Wet (hydronic) systems have lower running costs and are ideal for whole-house installations or new builds. Electric mat systems are cheaper to install, thinner (less floor buildup), and better suited to single rooms like bathrooms or kitchens as a retrofit.
Can underfloor heating be installed on an existing floor?
Yes. Electric mat systems add only 3-5mm to floor height. Wet systems can be retrofitted using low-profile panels that add 15-25mm. However, the most cost-effective time to install is during a renovation when floors are being replaced.
How much does underfloor heating cost to run?
Wet underfloor heating typically costs 15-25% less to run than radiators because it operates at a lower water temperature (35-45°C vs 65-75°C). Electric systems cost more to run but are usually only used in individual rooms.