Johnstone at a glance
- Postcode districts
- PA5
- Population
- about 15,930 (GeoNames)
- Council area
- Renfrewshire Council
- Building approval
- Renfrewshire Council building standards
- Nearest main town
- Paisley, about 3 miles
- Guide price region
- Scotland (−5% on West Midlands rates)
When does a garage roof in Johnstone need replacing?
Garage roofs in Johnstone take the weather head-on, often with no shelter from surrounding buildings. Wind lifts loose edge trims, frost works at cracked felt, and leaves block small gutters. When several of these faults appear together, a new roof with fresh edges is usually better value than chasing each one.
Johnstone's flat roofs are mostly on shops with flat-roofed rear stores below flats, with plenty on low-rise post-war blocks of flats too. Scotland averages roughly 1,570 mm of rain a year, with the west far wetter than the east, so drainage, falls and wind uplift are part of every specification we write.
How much does a new garage roof cost in Johnstone?
Guide price in Johnstone: £1,500–£2,650 for a typical 18 m² garage roof in EPDM, including VAT at Scotland rates. The fixed price comes after a free survey for new and replacement roofs.
| Job | Guide price inc VAT |
|---|---|
| Single garage (18 m²), EPDM rubber | £1,500–£2,650 |
| Single garage (18 m²), torch-on felt | £1,450–£2,500 |
| Single garage (18 m²), GRP fibreglass | £1,700–£3,100 |
| Extension (20 m²), GRP, new deck + insulation | £2,850–£5,100 |
What if my garage roof is asbestos cement or old felt?
If your garage has corrugated cement sheets, especially on a pre-2000 building, assume they could contain asbestos until a test says otherwise. We do not remove asbestos; any suspected material is tested and, if confirmed, removed by a licensed specialist before our work starts.
Once the old sheets have gone, the garage usually needs new timber joists or purlins and a deck before a membrane can go on. Old felt garages are more straightforward: the felt is stripped and the deck assessed in the usual way.
Lock-up blocks and rows of garages bring their own issues. A shared roof often has several owners, so we can quote per bay, or for the whole run where everyone agrees, which keeps the edges and joins between garages consistent. Attached garages need careful upstands and flashings where the roof meets the house wall, while detached ones are about edges, gutters and falls.
Not sure whether your roof needs replacing? Our guide to repair or replace sets out the signs.
What's included?
- Replacement of soft or swollen deck boards
- Gutter or outlet renewed where the old one has failed
- Written workmanship guarantee, with material guarantees registered where available
- Free survey of the deck, fall and gutter line
Building standards in Scotland
In Scotland the building standards technical handbooks (Section 6 for energy) apply, and the council's building standards service decides whether a building warrant is needed. Like-for-like repairs to a roof covering can be exempt; alterations, structural work and new roofs usually need a warrant before work starts. The domestic roof benchmark is 0.12 W/m²K, applied as far as reasonably practicable on an existing roof. More on the rules.
Which nearby areas do we also cover?
Garage roofs in Johnstone: questions
Do you cover Johnstone?
Yes. Johnstone is part of our Renfrewshire coverage, including postcode districts PA5. Surveys and roofs are carried out by vetted roofing teams working under S&K Property Investments and Improvement Ltd.
Who checks building standards for a flat roof in Johnstone?
Where the work needs approval it goes to Renfrewshire Council building standards. We tell you at the survey whether your job needs it and deal with the paperwork as part of the quote.
How much does a new garage roof cost in Johnstone?
£1,500–£2,650 for a typical 18 m² garage roof in EPDM, at Scotland guide rates including VAT. The fixed price comes after a free survey for new and replacement roofs.
Can you put a new roof on a garage with a cement sheet roof?
Yes, once any suspected asbestos has been tested and removed by a licensed specialist. The garage then usually needs new timbers and a deck before the new membrane goes on.
Do I need to empty my garage before the roof is replaced?
It helps to clear valuable or delicate items, and to cover the rest with dust sheets. Debris can fall through gaps in an old deck during strip-out.