Garage Roof Replacement in Reading
Roof repairs, re-roofing and flat roofs across Reading and the Thames valley. Free surveys, fixed written quotes, tidy workmanship.
Reading Roofing Company replaces garage roofs, extension roofs and outbuilding roofs across Reading. Garages are where most people first meet a failed flat roof: they are cheap to build, rarely maintained, and the leak takes months to matter because there is no ceiling underneath to stain.
The roof is only half the question, though. What the garage is built from decides how the new covering is fixed and, occasionally, whether the roof should be replaced at all.
The garage types we meet in Reading
Brick or block garage, timber deck
The standard 1930s to 1980s garage. Joists span the walls, chipboard or ply on top, felt over that. Straightforward to re-deck and re-cover in EPDM or GRP.
Sectional concrete garage
Precast panels with a thin panel roof. Light coverings only, fixings into concrete rather than timber, and a frame that is often more tired than the roof it carries.
Estate garage blocks
Rows of garages in a court, common across the postwar estates. Usually one continuous roof over several owners, which makes it a shared job with a shared price.
Cement sheet roofs
Corrugated sheet on 1950s–70s garages may contain asbestos. We do not remove it. It is tested and taken away by a specialist, and we re-cover once the deck is clear.
Garage and extension roof prices
| Structure | Re-cover only | With new deck and insulation | On site |
|---|---|---|---|
| Single garage, 14–18 m² | £1,500 – £2,400 | £2,100 – £3,400 | 1–2 days |
| Double garage, 28–36 m² | £2,600 – £4,200 | £3,600 – £5,600 | 2–3 days |
| Rear extension, 18–28 m² | £1,900 – £3,200 | £2,800 – £4,600 | 2–3 days |
| Sectional concrete garage roof | £1,200 – £2,200 | Not usually viable | 1 day |
| Pitched tiled garage roof, re-tiled | £2,400 – £4,500 | — | 2–4 days |
2026 guide prices including strip-out, trims, outlet and waste removal. Deck sheets in 18mm OSB3 are itemised per board on the quote. Survey and written price are free.
What we check before quoting
Joists first. A garage roof that has leaked for years usually has soft ends where the timbers sit in the wall, and there is no point putting a fifty-year membrane over a structure with ten years left. Sagging between joists means the deck has gone; sagging along the whole span means the joists have. Both are fixable, and both cost money that should be in the quote rather than discovered on day two.
Access next. Most garages sit at the end of a drive or in a block behind the houses, so a tower and edge protection usually does instead of a full scaffold — that is a few hundred pounds saved before anyone touches the roof. Garages tight against a boundary fence are the exception, because the far edge still has to be worked and trimmed safely.
Then the edges. Garages next to a boundary often drain onto or from a neighbour's structure, and extensions have an upstand where the flat roof meets the house wall — usually the point that actually leaks. That upstand needs a proper termination bar or a lead cover flashing chased into the brickwork, not a bead of sealant. On an extension the same job also brings the roof under Part L, so insulation goes above the deck as part of the rebuild.
EPDM rubber
The system we fit on most garages and extensions.
Comparing flat roof systems
EPDM, GRP and felt costed side by side.
Frequently asked questions
Ready for a free, no-obligation quote?
Call 0118 230 9278