GRP fibreglass and EPDM rubber garage roof replacement across Cheltenham. Deck repairs, drainage solutions, felt replacement. Free surveys, written quotes, no call-out fee.
Felt garage roofs installed in the 1980s and 1990s are now at or past end of life across Cheltenham. GRP fibreglass is the right replacement — longer lasting, lower maintenance and better suited to Cheltenham's rainfall than modern felt systems.
Monolithic GRP membrane with no seams. 25-year design life. 20-year manufacturer guarantee + 10-year workmanship guarantee. Single garage from £1,200.
Get a Quote →EPDM rubber for larger or awkwardly shaped garage roofs. 30-year design life, fully adhered. Single garage from £1,000.
Get a Quote →Rotten or delaminated deck boards replaced before new covering. We inspect the deck during every survey — no hidden extras at invoice stage. From £25/m².
Get a Quote →Tapered insulation boards create correct drainage fall without structural work. Included in every replacement quote. Eliminates ponding permanently.
Get a Quote →GRP blistering, EPDM seam failures and felt patching. Free assessment — we will tell you honestly whether repair or replacement is better value.
Get a Quote →Warm roof build-up with full insulation for garage conversions. We carry out the roofing element including insulation to meet Building Regulations.
Enquire →Cheltenham receives significantly above-average annual rainfall. Flat garage roofs face more demanding conditions here than in lower-lying Midlands towns. Felt garage roofs installed in the 1980s and 1990s — now 25–40 years old — have exceeded their design life in this climate. Ponding from insufficient drainage fall accelerates deterioration further.
GRP fibreglass is the correct specification for Cheltenham garage roofs. It handles sustained rainfall better than felt because it is a seamless monolithic membrane with no joints for water to find. Combined with tapered insulation boards to correct drainage fall, a GRP garage roof should outlast the property owner's tenure.
If your house roof also needs attention, combining both jobs saves significantly on scaffold and access costs. We assess both in a single free survey and provide a combined quote. The garage element costs less when scaffold is already in place.
"GRP garage roof in Up Hatherley. Old felt was leaking and the deck had gone soft in one corner. They replaced the rotten deck boards and laid GRP over the new deck. Clean job, done in a day."
"Had both main roof and garage flat roof done together. The garage element was very reasonably priced — scaffold was already up for the main roof. Sensible advice, good work, fair pricing."
"Double garage EPDM in Bishops Cleeve. They corrected the fall using tapered insulation — the old roof had been ponding since it was built. No more water sitting on the roof."
A standard single garage in GRP costs £1,200–1,800. A double garage costs £1,800–2,800. EPDM is typically 15% less. Felt replacement costs £500–900. All quotes include deck inspection and are free.
GRP is our first recommendation — monolithic membrane, no seams, 25-year design life, handles Cheltenham's high rainfall better than felt. EPDM is an excellent alternative for larger garages. We do not recommend felt for new installations in Cheltenham's climate.
If the failure is localised — a single blistered area or cracked section — repair is cost-effective. If the covering is felt over 12 years old with multiple failure points or deck softness, replacement delivers better value. We assess honestly and will not recommend replacement unnecessarily.
Like-for-like flat roof replacement on a garage does not require planning permission. Changing pitch, adding windows, or converting the space may require consent. Conservation area properties should check with Cheltenham Borough Council if the garage is on a principal elevation.
GRP lasts 25+ years. EPDM lasts 30+ years. Felt lasts 10–15 years in Cheltenham's wet climate. All our GRP installations include a 20-year manufacturer guarantee alongside our 10-year workmanship guarantee.
The most common causes: felt deterioration from age and UV, inadequate drainage fall causing ponding, deck rot from water ingress, and poorly installed wall abutment flashings. Cheltenham's above-average rainfall accelerates all of these failure modes.
Yes — combining both jobs saves significantly on scaffold and access costs. We assess both during a single free survey and provide a combined quote. The garage element costs less when scaffold is already in place for the main roof.
We assess your garage roof, deck condition and drainage at no charge. Written quote within 48 hours. No obligation.
0124 235 2251