How Much Does Flat Roof Replacement Cost?
Flat roofs on extensions, garages, and dormers need periodic replacement. Modern EPDM rubber and fibreglass (GRP) materials last significantly longer than traditional felt.
Typical UK Costs
Budget£1,500Basic specification
Average£3,500Mid-range finish
Premium£7,000High-end specification
Get Your Personalised Estimate
These are average UK costs. Get a more accurate estimate tailored to your specific project details and location.
Get a Personalised EstimateWhat Affects the Cost?
- Roof area (sq metres)
- Material (felt, EPDM rubber, fibreglass/GRP)
- Structural deck condition
- Insulation upgrade requirements
- Edge trims and upstands
Frequently Asked Questions
What is the best flat roof material?
EPDM rubber costs £70-£90/m² and lasts 40+ years. Fibreglass (GRP) costs £80-£100/m², is seamless, and lasts 30+ years. Both far outlast traditional felt.