Fibre Glass Roofing Repair

Fibre glass (GRP) flat roofs are popular across the UK for garages, extensions, bay roofs and balconies because they form a seamless, durable waterproof layer when installed correctly. However, impact damage, movement at joints, failed trims, poor previous repairs, or blocked outlets can lead to splits, pinholes and leaks. A proper GRP repair is not just a quick patch; it is about restoring the laminate and topcoat system so water cannot track under the surface. A GRP roofing repair specialist will assess the cause of the leak, not just the visible stain inside. That usually includes checking edge trims, upstands, corners, outlets, joints to adjoining walls, and any penetrations such as vents. Depending on the defect, the repair may involve grinding back the damaged area, re-laminating with chopped strand mat and resin, then reapplying a compatible topcoat to seal and protect the roof from UV and weather. TradeSupermarket connects you with experienced roofing professionals who work with GRP systems and understand correct preparation, curing times and weather limitations. You can compare services, reviews and credentials, then request a clear written quote before any work starts, whether you need a small localised repair or a more involved refurbishment of a leaking flat roof area. For peace of mind, always use a contractor with suitable public liability insurance and a track record of GRP work. Working at height and handling resins requires safe access, correct PPE and good site controls. A reputable specialist will also advise when a repair is viable versus when sections of the roof should be re-laminated or replaced to ensure a lasting, watertight result.