UK Roofer's Guide to Quoting Flat Roof Replacements

Flat roof replacements require careful quoting. Here's the UK roofer's guide.

Flat Roof Systems

Traditional Felt (3-Layer)

• Lifespan: 10-15 years
• Price: £50-70/m² installed
• Best for: Budget projects

EPDM Rubber

• Lifespan: 25-30 years
• Price: £80-120/m² installed
• Best for: Most domestic flat roofs

GRP Fibreglass

• Lifespan: 25-30 years
• Price: £90-130/m² installed
• Best for: Walkable areas, balconies

Single-Ply (TPO/PVC)

• Lifespan: 25-30 years
• Price: £100-150/m² installed
• Best for: Commercial, large areas

Quote Components

Strip and Dispose

• Remove existing covering: £15-25/m²
• Skip hire: £250-400
• Disposal: Included

Deck Repairs

• Replace rotten boards: £30-50/m²
• Allowance: 10-20% of deck area

New Covering

• Insulation (if upgrading): £30-50/m²
• Membrane system: As above
• Upstands and details: £30-50/linear metre
• Outlets and drainage: £50-100 each

Guarantees

• Manufacturer guarantee: 10-25 years
• Workmanship guarantee: 10-20 years
• Insurance-backed guarantee: Additional cost

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