What does a roof replacement cost in the UK in 2026?

A typical 80m² semi-detached UK roof costs £6,000–£12,000 in 2026, including labour, scaffolding, materials and disposal. Pitched concrete tiles are the cheapest at £55–£85/m². Natural slate is £80–£120/m². Flat EPDM is £40–£100/m².

Is the calculator accurate?

The ranges come from 2026 Checkatrade, Federation of Master Builders and National Federation of Roofing Contractors data, averaged across the UK. Your actual quote depends on local labour rates (London is 20–30% higher than the rest of England), access difficulty, scaffolding requirements, and condition of the existing roof structure.

Do I need scaffolding for a roof replacement?

Yes for almost all pitched roofs (HSE Work at Height Regulations 2005 require fall protection over 2m). Scaffolding adds £600–£1,500 to a typical semi. Flat roofs at ground floor level may use mobile towers (£200–£400). Get an itemised quote — scaffolding should be a line item.

Roof replacement cost calculator UK 2026

Get a 2026 cost range for your roof replacement based on real UK trade data. Free, no email required, no installer matching.

Quick answer: A typical UK roof replacement costs £6,000 to £12,000 for a 70 to 90 m² pitched roof in concrete tiles. Slate adds £2,000 to £4,000. Flat EPDM is £3,200 to £8,000 for a 50 to 80 m² roof. Always get three quotes from FMB-registered contractors.

Last reviewed: 2026-05-18 · Updates monthly · Sources cited below

Estimate your replacement cost

Roof area (m²) Typical: terrace 50, semi 70-90, detached 100-150 Material Access difficulty Region

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Ranges are 2026 averages from Checkatrade, FMB and NFRC. Add scaffolding (£600–£1,500), VAT (5% on energy-efficient replacements, 20% otherwise), and any structural repairs. Get three quotes from FMB-registered contractors.

How the calculator works

The base £/m² ranges come from 2026 averages across Checkatrade, Federation of Master Builders trade-pricing surveys, and the National Federation of Roofing Contractors annual cost guide. The access and region multipliers are based on the FMB regional cost index.

The calculator gives you a range, not a fixed quote. Real quotes vary 20-30% between contractors even on the same property. The ranges should overlap with at least two of three quotes you receive.

Typical semi (80m² concrete tile): £6,000-£10,000
Typical detached (120m² concrete tile): £9,000-£14,000
Scaffolding (typical): £600-£1,500
VAT (energy-efficient replacement): 5%
VAT (standard replacement): 20%

What's not included in the estimate

Scaffolding. Almost every pitched-roof replacement needs scaffolding to comply with HSE Work at Height Regulations 2005. Budget £600-£1,500 for a typical house, longer for terraces with party-wall access. Flat ground-floor roofs may use mobile towers (£200-£400).

VAT. Energy-efficient roof replacements (added insulation, solar-ready) qualify for 5% reduced VAT under the Energy-Saving Materials Order 2022. Standard replacements are 20%. Confirm with your contractor before signing.

Structural repairs. Replacing the roof covering rarely fixes rotten timbers, sagging rafters, or failed flashing. Budget a 10% contingency. A roof surveyor (RICS or FMB-Certified) can give you a pre-replacement condition report for £200-£400.

Building Control. Re-covering a roof using like-for-like material is usually permitted development. Changing material (e.g. slate to concrete) needs Building Control approval and adds £200-£400 in fees plus possible structural calculations.

How to get accurate quotes

Measure the roof area in m² (length × width × number of slopes). Don't trust contractor measurements until you've checked them.
Get three quotes. Always. The middle quote is usually right.
Insist on an itemised quote: labour, materials, scaffolding, disposal, VAT, contingency. Walk away from anything stated as "all-in".
Check FMB / NFRC membership or TrustMark registration. Ask for evidence of public liability insurance (£2m minimum).
Don't pay more than 25% upfront. Stage payments tied to milestones (scaffolding up, strip done, new covering complete) protect you.

Sources

Checkatrade, Roof replacement cost guide, 2026 update
Federation of Master Builders, FMB Trade Cost Survey 2026
National Federation of Roofing Contractors, Annual cost guide 2026
HSE, Work at Height Regulations 2005
HMRC, VAT on energy-saving materials (Energy-Saving Materials Order 2022)

Last reviewed: 2026-05-18. Calculator constants updated monthly.