Flat Roof Installation Costs
Flat roof installation costs between £50-£120 per square metre depending on the material chosen. Here's a detailed breakdown:
Material Comparison
| Material | Cost per m² | Lifespan | Guarantee |
|---|---|---|---|
| Built-up Felt | £50 - £80 | 10-20 years | 10 years |
| EPDM Rubber | £70 - £100 | 20-30 years | 20 years |
| GRP Fibreglass | £80 - £120 | 25-30 years | 25 years |
| Single Ply PVC | £90 - £130 | 25-35 years | 25 years |
Cost by Property Size
- Small Garage (15m²): £750 - £1,800
- Extension (25m²): £1,250 - £3,000
- Full House Roof (100m²): £5,000 - £12,000
Which Material is Best?
EPDM Rubber: Best for DIY-friendly installation, excellent weather resistance
GRP Fibreglass: Seamless finish, ideal for walkable roofs
Felt: Most affordable, proven track record
Get Free Quotes
Fill in the form below and we'll connect you with trusted local roofing contractors who can provide accurate quotes for your specific project.