Install a new flat roof using EPDM, GRP fibreglass or felt system. Includes deck, insulation, membrane and edge trims.
Typical cost
£1,200 — £2,700
Typical duration
2-3 days
Scope type
flexible
Typical tasks
Remove existing flat roof covering
Inspect and repair deck as required
Lay insulation board
Install membrane system - EPDM, GRP or felt
Fit edge trims, outlets and flashings
Extras & additional works
Based on a standard single garage flat roof of approximately 20m², costs may increase if additional structural repairs are needed.
Common questions Stainesai
The cost can be affected by the size of the roof, the type of membrane system used, and any necessary repairs to the underlying structure.
Common membrane systems for flat roofs include EPDM, GRP, and felt, each with different durability and cost characteristics.
Yes, flat roof installations must comply with UK Building Regulations, particularly regarding insulation and drainage.
A standard flat roof installation for a single garage usually takes 2-3 days, including preparation and installation.
Regular inspections for damage, clearing debris, and ensuring proper drainage are essential for maintaining a flat roof. Always confirm with your tradesperson before work begins.
Ready to post a flat roof installation job?
Describe what you need. Stainesai structures it into a proper scope. Your first job post is free.