Last reviewed: 19 September 2026

Roof replacement cost per m² in the UK

A useful UK planning rate for a pitched re-roof is roughly £85–£145 per m² in concrete tiles, £110–£175 in clay and £140–£230 in natural slate. Treat those as covering-related bands, not a price for your house. The calculator still has to add access, waste and shape.

Planning rates by covering

These are the pitched-replacement £/m² assumptions currently used in the RoofCost UK model. They are planning bands, VAT-aware in the same sense as the rest of the site, and they are not contractor day-rates.

Unknown covering uses the full concrete-to-slate span so the model does not silently pick the cheapest product.

No contact details required to see your estimate. Enter an approximate roof area in m² if you have one; if you do not, the calculator uses a wider property-type band instead of inventing a size.

Why floor area × rate is the wrong quote

Homeowners often take the ground-floor footprint — say 70 m² for a 3-bed semi — and multiply it by a rate found online. A pitched roof is a slope, not a ceiling. Pitch, hips and overhangs mean the covering area is larger than the rooms below. On many houses the roof is tens of percent bigger than the floor plate.

Even a correct roof m² still misses the parts that are not “per metre”. Scaffolding on a two-storey semi is a lump, not a rate. Strip-out and a skip are lumps. Valleys, chimneys and a rotten batten run are time, not square metres. A £/m² figure is a planning tool for the covering layer, not a substitute for those extras.

• Roof slope — steeper pitches need more covering for the same plan area and slower working.
• Actual roof area — measure slopes, or let the calculator use a property band if you cannot.
• Access and scaffold — hired by elevation and duration, not by m².
• Valleys, chimneys and detailing — cutting and flashing do not scale linearly with area.
• Strip-out and timber — found after the old covering comes off, so they cannot live inside a tidy rate.

Worked planning example

Take a simple 80 m² concrete-tile roof on a semi-detached house, with scaffolding allowed for. Covering at £85–£145/m² is £6,800–£11,600 before anything else. The RoofCost UK calculator then adds the semi-detached scaffold band and replacement waste, and rounds to the nearest £100. The on-screen planning range for that input is currently £7,600–£14,200 (midpoint about £10,900).

That is a worked planning example from the RoofCost UK model, not a contractor quotation and not a survey of a real roof.

The same 80 m² in natural slate currently plans at £12,000–£21,300 once access is included — which is why a single “average £/m²” for every covering is not usable.

What a quotation should spell out

If a roofer quotes “£X per m²”, ask what area they measured and what sits outside that rate. A comparable written quote usually says whether scaffolding, strip of the existing covering, skip, new underlay and battens, the covering itself, ridge and verge, flashing where disturbed, and VAT are inside the number. Timber repairs and extras found on strip are often provisional.

Planning range versus a quote

RoofCost UK turns the area and covering you enter into an indicative planning range. A quote for a pitched roof replacement is about the actual property: access, condition and a measured roof. See the new roof cost overview or concrete tile replacement if you already know the covering.