The best materials for garage roofs are EPDM rubber, fibreglass (GRP), or high-performance felt. EPDM is popular for its lifespan and flexibility, while GRP offers a strong, seamless finish.
Garage roof replacement in the UK typically costs between £1,000 and £3,500, depending on size, materials, and condition of the existing structure.The exact cost varies on a case-by-case basis, depending on the specific task.
A modern garage flat roof can last 20–50 years depending on the material used. EPDM and fibreglass systems tend to last significantly longer than traditional felt.
Common signs include persistent leaks, pooling water, cracks, blistering, sagging, or visible wear on the surface.
Minor damage can often be repaired, but if the roof is old or has widespread issues, a full replacement is usually more cost-effective long term.
Leaks are often caused by ageing materials, cracks, poor installation, blocked drainage, or failed joints and seals.
In most cases, planning permission is not required if you are replacing like-for-like. However, changes to height or structure may require approval.
Most garage roofs can be replaced within 1–2 days, depending on size and weather conditions.