Flat roof costs in the UK range from £40-80/m² for felt to £100-150/m² for GRP fibreglass in 2026. EPDM rubber costs £80-120/m² and offers the best value with a 25-30 year lifespan. A typical garage flat roof (15m²) costs £600-2,250 depending on material. Guide by Nationwide Roofing Specialists, updated April 2026.
2026 Price Guide
Flat Roof Costs UK 2026
EPDM, GRP fibreglass, and felt roofing price guide
Last updated: April 2026
Quick Answer: Flat roof costs in the UK range from £40-80/m² for felt to £100-150/m² for GRP fibreglass in 2026. A typical garage flat roof (15m²) costs £800-1,500 for felt or £1,500-3,000 for EPDM/GRP. EPDM at £80-120/m² offers the best value with a 25-30 year lifespan.
Cost by Material Type
| Material | Cost/m² | 15m² Total | Lifespan |
|---|---|---|---|
| Felt (3-layer) | £40-80 | £600-1,200 | 10-15 years |
| EPDM Rubber | £80-120 | £1,200-1,800 | 25-30 years |
| GRP Fibreglass | £100-150 | £1,500-2,250 | 30-50 years |
FAQs
NRSET
Nationwide Roofing Specialists Editorial Team Verified Expert
Roofing Industry Experts | Est. 2024
This guide was written and reviewed by our team of roofing industry professionals with over 50 years of combined experience. All cost data is verified against real quotes from our network of 1,000+ contractors across the UK.
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