CMW Roofing & Renovations
Flat Roof Repair
Fareham
CMW Roofing & Renovations carries out flat roof repair and replacement across Fareham and the surrounding PO14–PO17 area. A large proportion of Fareham's housing stock includes garages and extensions with flat roofs — many now at or beyond the end of their felt lifespan. We install GRP fibreglass systems that are seamless, jointless and far more durable than the felt they replace.
GRP Flat Roofing in Fareham
Garages and extensions with flat roofs are common across Fareham's PO14–PO17 postcode area. Many were built with traditional felt that's now at the end of its life — leaking, bubbling or splitting at the lap joints.
We replace those tired felt roofs with GRP fibreglass, which removes the weak points entirely and carries a 20-year manufacturer guarantee.
Done once and done properly, a GRP roof outlasts any felt system you put next to it.
How we install your GRP flat roof
- Strip and inspectThe old felt is stripped back to the deck and the boards checked for rot or movement — any that are no longer sound are replaced first.
- GRP trims and universal primerGRP edge trims are fixed around every perimeter and upstand, then a universal primer is applied across the full deck to seal it ready for the laminate.
- Matting and resin laminateFibreglass matting is laid into catalysed resin and rolled out to remove any air, bonding into one seamless, jointless layer across the whole roof.
- Sand, dust off and topcoatOnce the resin has cured we sand it back, dust it off and roll on the topcoat (matched to the system) for a hard-wearing, UV-stable, colour-fast finish.
We cover garage roofs, extension flat roofs, bay window roofs, dormer cheeks and any other flat or low-pitch surface across the Fareham area. Every installation includes a written workmanship guarantee alongside the manufacturer's guarantee on the materials.
What we cover
Strip and replacement
Old felt stripped, deck inspected and replaced where needed, new GRP system installed from bare boards up.
GRP trims and upstands
GRP edge and drip trims fixed before the laminate goes down to give a clean, weathertight perimeter on all Fareham flat roofs.
Universal primer and matting
A universal primer seals the deck, then fibreglass matting is laid into the resin across the whole roof — one continuous layer with no joints to fail.
Sanded and topcoated
Once the resin has cured, the laminate is sanded back, dusted off and topcoated — a seamless finish with no lap joints or seams to fail on your Fareham flat roof.
Deck board replacement
Rotten or damaged roof boards identified during strip-out and replaced before the new system is laid, so the guarantee is not compromised.
Flat roof repairs
Where the existing deck is sound, we can carry out targeted GRP repairs rather than a full replacement — we advise honestly on which option suits your roof.
Recent flat roof work
Areas we cover
We cover flat roof work across Fareham, Portchester, Titchfield, Locks Heath, Stubbington, Hill Head, Whiteley and the wider PO14–PO17 area. If you are not sure whether we cover your location, call or message and we will confirm.
We typically respond to enquiries within a few hours and can usually arrange a free site visit and written quote within a few days.
FAQs
What is the best flat roof system for a garage in Fareham?
How long does a flat roof replacement take in Fareham?
Do you repair as well as replace flat roofs in Fareham?
Does a new GRP flat roof add value to my Fareham property?
Have a question not answered above?
Call 07876 803 029Get a free flat roof quote in Fareham
Call or message for a free, no-obligation quote. We cover Fareham and the surrounding PO14–PO17 area and aim to respond the same day.