Flat-roof extensions, garage roofs and outbuildings are common across St Thomas’s Victorian housing stock. When the original felt covering fails, GRP fibreglass is the right upgrade — its seamless surface lasts 25+ years and eliminates the laps and joints where felt failure begins. We install GRP and EPDM flat roofing across St Thomas with a 10-year workmanship guarantee. Call 01392 759 295.
St Thomas’s Victorian terraces have accumulated rear extensions, outbuildings and bay window flat roofs across multiple generations of modification. The flat felt covering on these additions is typically original to the post-war or 1960s–70s period when the work was done. Third-generation felt replacement is not the right answer on a 40-year-old deck — GRP on a repaired or replaced deck provides a 25-year solution where another felt layer would provide 8–10.
The riverside position of parts of St Thomas increases the ambient humidity compared to more elevated Exeter suburbs. Flat roofs on properties close to the Exe experience higher moisture cycling than equivalent work a mile away, and felt laps in this environment have a shorter service life than the label suggests. This is one of the reasons GRP is our first recommendation for St Thomas flat roofing work — its seamless surface handles the moisture load here better than jointed felt systems.
A standard GRP flat roof installation in St Thomas is completed in one to two days. Existing covering is stripped, the deck inspected and repaired where required, GRP laminate applied with correct overlaps, and topcoat finished the following morning. The roof is walkable within 24 hours and fully cured in 48. We carry out a final inspection with the homeowner before leaving and issue the 10-year workmanship guarantee on the day the job completes. Free survey and fixed quote. Call 01392 759 295.
Free survey and quote — no call-out fee, no obligation.
📞 Call 01392 759 295“GRP on our rear extension in St Thomas. Old felt was on its second layer. GRP was clearly the right call.”
“Deck needed partial replacement before the GRP went on. They included this in the original quote rather than adding it as an extra. Good honest approach.”
“EPDM on our outbuilding roof. Clean installation, no mess, drainage designed correctly this time.”
GRP flat roofing from £900–£3,500 depending on size. Free survey and quote. Call 01392 759 295.
25–30 years with correct installation. GRP is significantly more durable in Devon’s wet climate than felt systems.
If the flat roof has been re-covered once already, GRP is the better investment. Another felt cover provides 8–10 years vs 25 for GRP.
A standard rear extension or garage flat roof is typically completed in a single day.
Yes — GRP patch repairs and felt patching for localised failures. We advise honestly on repair vs replacement. Call 01392 759 295.
Yes — 10-year workmanship guarantee. Call 01392 759 295.
Yes — all EX4 addresses. Call 01392 759 295 to confirm.
No call-out fee. No obligation. A local roofer who knows St Thomas and turns up when they say they will.
01392 759 295