How much does underfloor heating cost?
Underfloor heating is priced per m² of floor. Enter the area below for a region-adjusted estimate.
Wet vs electric
- 1Electric (retrofit)
Heating mats under tiles — cheaper and quicker to install, better for small areas like bathrooms.
- 2Wet (new floors)
Pipework in screed connected to the heating system — more efficient to run, best for whole rooms.
- 3Insulation and controls
Floor insulation below the system and good thermostatic controls are essential for efficiency.
Underfloor heating is a spec upgrade that resonates in higher-value refurbishments and self-contained conversions. In a standard BTL it rarely pays for itself — match the spec to the exit.
Underfloor heating costs (indicative)
| System | Per m² | Notes |
|---|---|---|
| Electric mat (retrofit) | £50 – £90 | Cheaper to fit, costlier to run |
| Wet (new screed) | £60 – £120 | Best for whole rooms/new floors |
| Whole ground floor (~40 m²) | — | £2,400 – £4,800 |
| Add manifold & controls | — | £400 – £900 |
Wet systems suit new floor build-ups; electric mats suit retrofit under tiles.
Frequently asked questions
How much does underfloor heating cost?+
A wet underfloor heating system costs around £60–£120 per m² including screed, so a 40 m² ground floor is roughly £2,400–£4,800. Electric mats are cheaper to fit but cost more to run.
Is underfloor heating worth it?+
It's a desirable feature on a higher-spec flip or a self-contained conversion, but it adds cost and floor build-up — weigh it against the market you're selling or letting to.
Related tools & guides
Want to know how these figures are calculated? See our cost methodology.
Cost figures shown are indicative estimates, not quotations. You are responsible for verifying all costs (obtain contractor quotes) and any figures submitted to a lender. ScopeWise is a documentation tool, not financial, tax, structural or planning advice. HMO compliance prompts are guidance only — confirm requirements with your local council, as standards and licensing vary by authority.