Flat Roof Repairs specialists
Flat Roof Repairs in Croydon
Flat roofs on extensions, garages, dormers and bay windows are common across Croydon, and they are often the first roofs to leak. Ponding water, blistered felt and failed upstands all let water in. Grange Roofing repairs flat roofs of every type throughout Croydon and the London Borough of Croydon.
We find where the water is getting in, explain whether a repair will last, and give a clear written price — with an honest recommendation if replacement is the better option.
Flat roof problems we repair
- ✓Blisters, splits and cracks in felt roofs
- ✓Leaking upstands, flashings and edge trims
- ✓Ponding water and low spots
- ✓Damaged EPDM rubber membranes
- ✓Cracked GRP fibreglass roofs
- ✓Leaks around rooflights and outlets
Why flat roofs leak
Many homes in Croydon have Victorian and Edwardian terraces, 1930s semi-detached houses and post-war family homes, and their flat roofs take a beating from rain, UV and temperature changes. Felt becomes brittle, joints open up and poor falls let water sit on the surface until it finds a way in.
Felt, EPDM and GRP repairs
We repair traditional torch-on felt, EPDM rubber and GRP fibreglass roofs using compatible materials, so the repair bonds properly. Patching one material with the wrong product is a common reason repairs fail quickly.
When repair isn't enough
If the deck underneath has gone soft, or the covering has failed across large areas, repeated patching wastes money. In that case we'll quote for a full flat roof replacement with a 10-year guarantee.
