We install and repair flat roofs on Cambridge homes, extensions, garages, and commercial buildings. We use EPDM rubber, GRP fibreglass, and torch-on felt systems depending on the application. Flat roofs installed correctly are low-maintenance and can last 25 years or more.
Image: local flat roofing
Flat roofs are common across Cambridge — on rear extensions, garage roofs, dormer tops, bay window roofs, and smaller commercial buildings. They have a reputation for causing problems, but that reputation usually comes from poorly installed older felt systems. Modern flat roofing materials, installed by someone who knows what they're doing, are highly reliable and long-lasting.
We work with three main flat roofing systems. EPDM rubber membrane is an excellent all-rounder — it's flexible, UV-stable, and handles Cambridge's temperature swings well. GRP fibreglass is ideal for awkward shapes and around roof penetrations, as it can be moulded seamlessly around upstands and outlets. Torch-on felt (two or three layer) is a cost-effective option for larger commercial applications. We'll recommend the right system based on the roof size, the amount of foot traffic, and your budget.
A flat roof installed without adequate falls — the slight gradient that directs water to the outlet — will pond water and fail early regardless of which membrane is used. This is one of the most common mistakes on self-build extensions. Insulation specification also matters for building regulations compliance on new-build and replacement flat roofs.
We carry out a free survey before quoting, which includes checking the existing decking and any drainage arrangements. Most flat roof replacements on a standard rear extension or garage take one to two days. We guarantee all flat roof installations for a minimum of ten years on workmanship. Flat roofs in Cambridge typically cost £70–£120 per square metre for EPDM or GRP installation, including stripping the old covering and disposing of waste.
No obligation · We usually respond within 2 hours
Storm damage, active leak, damaged ridge — we aim to be on-site within 24 hours.
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