Garage Roof Replacement in Basingstoke
Roof repairs, new roofs and roofline work across north Hampshire. Free surveys, fixed written quotes, tidy workmanship.
Basingstoke Roofing Company replaces garage roofs across Basingstoke — brick garages with rotting felt and soft chipboard decks, concrete sectional garages needing new sheets, and the garage courts behind the estates where a dozen roofs are the same age and in the same state.
Garages were built with the houses and given the cheapest roof on the plot. Nobody has been up there since. On a 1960s–80s estate the result is a town full of flat roofs that have quietly run out of covering at roughly the same moment.
Garages built with the estates
The typical Basingstoke garage roof is 15 to 20 square metres of chipboard or thin plywood on joists, covered in three-layer bitumen felt with a mineral top sheet, finished with a timber edge and a gutter at the low end. The felt was good for 15 to 20 years and has usually been patched once already. Two things then happen at the same time: the mineral surface washes off and the felt goes hard and splits at the laps, and the deck below softens where water has been sitting.
You can tell how far along it is from the ground. Dark patches on the surface where water lies, moss along the low edge, a sagging line across the middle, and grit in the gutter all say the same thing. The test that settles it is walking on it — a deck that gives underfoot is coming off, whatever the covering looks like.
What is under your felt
Chipboard deck
Standard on 1960s–70s garages and the first thing to fail. Once wet it never recovers. Replaced with 18mm OSB3, which handles damp far better.
Plywood deck
Lasts longer than chipboard and can sometimes be kept in part. We renew board by board and price each sheet rather than quoting for the whole deck blind.
Concrete sectional garage
Panel-built garages need lightweight sheeting their frame can carry — fibre cement or box-profile steel on the existing purlins, with new fixings and translucent panels for daylight.
Grey corrugated sheets
On a pre-1985 garage, treat these as asbestos cement until tested. Sampling comes first, and removal follows the Control of Asbestos Regulations 2012 with documented disposal.
Pitched tiled garage
Treated as a small re-roof — new breathable membrane, battens and tiles, usually matched to the house.
Garage roof prices
| Garage | Re-cover in EPDM | If the deck needs renewing |
|---|---|---|
| Single, attached to house (15–18 m²) | £1,500 – £2,600 | +£350 – £700 |
| Single, detached or in a block | £1,600 – £2,900 | +£350 – £750 |
| Double garage (30–36 m²) | £2,500 – £4,300 | +£600 – £1,200 |
| Concrete sectional, re-sheeted | £1,400 – £2,700 | New purlin fixings included |
| Asbestos sheet survey and removal | £800 – £2,000 | Priced only after testing |
2026 guide figures including strip, disposal, new edge trims and a gutter where one is needed. Deck renewal is priced per sheet and agreed before the felt comes off.
Garage courts and adjoining runs
A lot of Basingstoke garages sit in blocks rather than on the plot, and that changes the job. Adjoining garages usually share a continuous deck line and a single fall to one gutter, so a membrane that stops halfway along a run leaves a joint in the worst possible place. Where neighbours are replacing at the same time, doing two or three in one visit is cheaper for everyone — one set-up, one skip, one continuous sheet across the shared sections.
Where only one garage in a run is being done, we terminate at the party line properly: a trim mechanically fixed on our side, upstands taken high enough to matter, and no membrane lapped over someone else's covering. It is a small detail that saves a long argument in three winters' time.
Why rubber, specifically
EPDM build-up, bonding and lifespan explained.
Comparing systems
EPDM, GRP and felt priced side by side.
Frequently asked questions
Ready for a free, no-obligation quote?
Call 01256 438323