GRP Fibreglass Roofing Services

A GRP fibreglass roof installed correctly will typically last 30 years or more. The material does not degrade in sunlight, does not crack under normal movement and does not need regular retreatment to stay waterproof. Lifespan depends on the quality of the installation and the condition of the deck underneath.

For most domestic flat roofs, yes. GRP lasts significantly longer than felt, requires less maintenance and creates a seamless finish with no joins. Felt can still be a suitable option for straightforward budgets, but GRP offers better long-term value in most situations.

Cost depends on the size of the roof, the condition of the existing deck and the complexity of the edges and detailing. As a general guide, GRP systems typically start from around £80 to £100 per square metre. Contact Abel Roofing for a free assessment and accurate quote for your specific job.

In most cases, replacing an existing flat roof with GRP is classed as permitted development and does not need planning permission. Properties in conservation areas or listed buildings may have restrictions. If you are unsure, check with your local planning authority before work starts.

In some cases an overlay is possible, but only if the existing deck is sound, dry and level. If there is any rot, movement or moisture in the substrate, it needs to come out first. Abel Roofing will inspect the existing roof before recommending the right approach.

Yes. GRP is one of the most common choices for garage flat roofs. It handles foot traffic if the roof is accessed, it resists impact and it gives a clean finish that lasts. It is also suitable for roofs with skylights or upstands built in.

Most domestic GRP installations are completed in one to two days. Larger roofs or those with more complex shapes may take a little longer. Abel Roofing will give you a clear timeline before work starts so you know what to expect.

Poor installation is the main cause. If the resin is not mixed correctly, if the deck is not prepared properly or if the topcoat is applied too thin, the roof can crack or delaminate over time. This is why choosing an experienced installer matters. GRP installed well rarely fails.

Yes. Localised damage such as a crack, impact mark or failed edging can be repaired using GRP patching materials. The repair bonds to the existing surface and creates a seamless finish. If damage is widespread, a full replacement may be more cost-effective.

Abel Roofing provides a workmanship guarantee on all GRP installations. The materials also carry a manufacturer warranty. You will receive both in writing before work begins. Ask about guarantee terms when you request your quote.

Yes. GRP can be fitted around roof lights, upstands and penetrations cleanly because it is applied as a liquid and cures in place. This removes the risk of leaks at the joints that can occur with sheet membranes around penetrations.

If the roof is over 20 years old, has been repaired more than once and is still leaking, replacement is usually the better option. Other signs include widespread cracking, soft spots in the deck, persistent damp inside the building and felt that has lifted or pulled away from the edges.

Yes, if insulation is included as part of the installation. A warm roof build-up with rigid insulation board beneath the GRP layer is now standard practice and significantly improves the thermal performance of the property. Abel Roofing can advise on insulation options as part of your quote.

A professionally installed GRP roof improves the condition of the property, removes a known maintenance liability and can improve energy efficiency. Buyers and surveyors view a flat roof with a long-life system and a guarantee as a positive, compared to an old felt roof of unknown age or condition.