Can you overlay an existing flat roof on a Sutton-in-Ashfield extension?
Sometimes — but only when the deck is genuinely sound. We inspect the substrate first before recommending overlay vs. full strip on any Sutton-in-Ashfield property.

Nottinghamshire · NG17
Flat roof life expectancy in Sutton-in-Ashfield comes down to detailing at upstands, outlets and abutments, not the membrane alone. With Pennine-edge exposure brings driving rain and the occasional snow load that puts strain on shallow-pitched garage roofs, those details are where leaks start. We've replaced flat roofs across Kirkby-in-Ashfield, Huthwaite, Skegby and every quote includes a written specification.
Sometimes — but only when the deck is genuinely sound. We inspect the substrate first before recommending overlay vs. full strip on any Sutton-in-Ashfield property.
It depends on the deck, falls and budget. We price EPDM, GRP and felt side-by-side for Sutton-in-Ashfield homes so you can compare honestly.
EPDM and GRP installed properly across Sutton-in-Ashfield routinely last 25–30 years; torch-on felt 15–20. The detailing at upstands and outlets matters as much as the material in NG17.
Yes — every flat roof we install across Sutton-in-Ashfield comes with a written workmanship guarantee, plus the manufacturer's membrane guarantee.
Yes — where the existing deck on a Sutton-in-Ashfield extension is soft or warped, we strip and replace the boards before the new membrane goes on.
BJB Roofing & Exteriors offers EPDM rubber, GRP fibreglass and torch-on felt flat roofs for extensions, garages and dormers across Sutton-in-Ashfield and the surrounding NG17 area — including Kirkby-in-Ashfield, Huthwaite, Skegby. Every job starts with a free written quote and is backed by a workmanship guarantee.
Local landmarks: Sutton Lawn, the King's Mill Reservoir and the Idlewells shopping centre.
Call BJB Roofing today for honest advice and a free, no-obligation quote.