Home projects
Garage roofs
Garage roof replacement: sheets, trims and fixings
Lots of garages still have their original corrugated fibre cement roof, and many of those contain asbestos. Here's how replacing one usually goes. Once the old roof is off, we cut the new sheets to length, back them so they don't drip on the car, and supply the trims and fixings to finish it.
- Cut to the exact length
- Anti-condensation backing
- Flashings and fixings on the same delivery
- Happy to supply homeowners
1. Get the old roof checked
If the garage was built before 2000, the roof sheets may contain asbestos. Don't cut, drill or break them. Follow the Health and Safety Executive's asbestos guidance (hse.gov.uk/asbestos). Most people use an asbestos removal contractor to take the old roof off.
2. Measure the roof
Measure the slope length from eaves to ridge (plus overhang) and the width along the eaves. We'll work out the number of sheets and lengths with you.
3. Choose the new sheets
Box profile is the most popular for garages; corrugated keeps the original look. Add anti-condensation backing so the roof doesn't drip on the car, and a colour to suit the house.
4. Order everything together
Barge flashings for the edges, fillers for the gaps under the ribs, and the right screws. They come on the same delivery as the sheets.
Questions we’re asked
What are the best roofing sheets for a garage?
Box profile steel sheets with an anti-condensation backing are the usual choice: strong, quick to fit and they won't drip on the car.
Can I replace my garage roof myself?
Many people do. If the old roof might contain asbestos, have it checked and follow HSE guidance before anyone touches it.
What is the cheapest way to replace a garage roof?
For most garages, steel box profile sheets are among the most cost-effective options: they're quick to fit and the trims and fixings come with them. Send us the roof size for a price.