£2,200
- Focused essentials
- Practical finishes

Estimates derived from UK trade benchmark data and regional labour indices, updated May 2026. Methodology →
Underfloor Heating in Wales often quotes below the UK mainland average, with travel and access sometimes moving rural jobs. We tie back to the national guide and spell out what that tends to mean in Wales.
In Wales, regional quotes are often below UK average, with travel affecting some rural jobs. For the full UK-wide baseline, compare with Underfloor Heating Cost UK.
Wales benchmarks around 5% below the UK average, but the headline hides a wide practical spread: Cardiff and Newport price close to the English average with decent availability, while rural mid and north Wales pay travel time on every trade visit and wait longer for specialists. Building regulations are devolved and increasingly diverge from England's — check guidance against Welsh rules, not English websites, before committing to specs.
The stock tells the region's history: valleys terraces in stone and brick (often needing damp and structural work priced with local knowledge), slate-roofed cottages whose repairs want Welsh slate and roofers who work it, and National Park areas — Eryri, Bannau Brycheiniog and the Pembrokeshire Coast — where planning controls materials and external appearance tightly.
Slate is Wales's signature renovation material and its signature cost: matching a slate roof properly — Welsh slate, not imports — is expensive but expected in conservation areas and National Parks, and done right it outlasts every alternative. On the west coast, wind-driven rain demands render and detailing specs closer to Scottish standards than English ones; coastal quotes reflect it.
Pick the path that fits where you are — running early numbers, or pressure-testing a quote you've already got.
Three planning tiers for underfloor heating in Wales, with scope and a representative figure for each. Run your own numbers in the calculator for a tailored range.
£2,200
£3,800
£8,300
| Item | Cost Range |
|---|---|
| Electric UFH (per m²) | £50 – £100 |
| Wet UFH (per m²) | £50 – £100 |
| Single room electric (15m²) | £750 – £1,450 |
| Ground floor wet (50m²) | £3,800 – £7,600 |
| Manifold and controls | £200 – £500 |
Indicative range: £50–£100 per m².
At the mid-range, underfloor heating in Wales benchmarks around £3,800 — around 5% below the UK average. The same project benchmarks around 28% higher in London (£4,900). Next door, West Midlands comes in around £4,000 and South West England comes in around £4,200.
Wales is not one price. Across the postcode areas we track, Cardiff quotes typically run 4% higher than Swansea for the same spec — these are the benchmarks by area:
| Area | Postcodes | vs UK average | Typical mid-range | Budget–premium span |
|---|---|---|---|---|
| Cardiff | CF | -2% | £3,900 | £1,450–£11,800 |
| Newport | NP | -4% | £3,850 | £1,450–£11,500 |
| Llandrindod Wells | LD | -6% | £3,750 | £1,400–£11,300 |
| Llandudno & North Wales | LL | -6% | £3,750 | £1,400–£11,300 |
| Mid Wales & Shrewsbury | SY | -6% | £3,750 | £1,400–£11,300 |
| Swansea | SA | -6% | £3,750 | £1,400–£11,300 |
Run the calculator with your postcode for a range tuned to your area.
Three quick inputs and we'll email you an indicative range. Run the full calculator for a postcode-adjusted estimate.
What a fair underfloor heating quote should itemise doesn't change by region — only the prices do. The full checklist, red flags and scripts live in our UK guide, benchmarked against the Wales figures above:
Whether you're still scoping or already comparing builders, the next step is one click away.
See national cost ranges, scenarios and timelines without the regional adjustment.
Compare underfloor heating costs across the UK