Flat Roof Repairs specialists
Flat Roof Repairs in Northolt
Flat roofs on extensions, garages, dormers and bay windows are common across Northolt, 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 Northolt and the London Borough of Ealing.
We find where the water is getting in, explain whether a repair will last, and give a clear written price โ with an honest recommendation if replacement is the better option.
Flat roof problems we repair
- โBlisters, splits and cracks in felt roofs
- โLeaking upstands, flashings and edge trims
- โPonding water and low spots
- โDamaged EPDM rubber membranes
- โCracked GRP fibreglass roofs
- โLeaks around rooflights and outlets
Why flat roofs leak
Many homes in Northolt have 1930s semi-detached homes, bungalows, terraced streets and plenty of flat-roofed garages, dormers and extensions, 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.









