The garage roof replacement cost UK homeowners pay in 2026 sits between £750 and £3,500 fitted, depending on the size of the roof and the covering you choose. Felt is the cheapest option at £700 to £1,500 for a single garage, EPDM rubber typically costs £1,000 to £2,500, and GRP fibreglass runs £1,200 to £3,000. Our garage roof replacement team put this guide together to show what each material costs per square metre, how long each one lasts, and the extras such as asbestos removal that can change your final quote.
How Much Does a Garage Roof Replacement Cost?
A garage roof replacement is the removal of the existing covering and the installation of a new waterproof system, priced on roof area, material and labour. For most UK garages the job takes one to two days, and the national average sits around £1,500.
Three things set the price: the size of the roof, the material you choose, and the condition of the timber deck underneath. A single garage roof is usually 15 to 20 square metres, while a double garage is closer to 30 to 40 square metres. A double roof rarely costs twice as much, because the team is already on site, so expect roughly 60 to 80 percent more than the single garage figure.
If the existing covering is sound and the problem is limited to one small area, a repair may be the better route. Our roof repair cost UK guide explains when a patch makes sense and when it is money wasted on a roof that has reached the end of its life.
Flat Garage Roof Cost by Material
The flat garage roof cost in 2026 ranges from £40 to £130 per square metre fitted, with felt at the bottom of that range and GRP fibreglass at the top. Most UK garages have a flat or near-flat roof, so these three membranes cover the vast majority of replacements. A professional flat roof installation includes stripping the old covering, checking the deck, fitting new edge trims and laying the membrane.
Felt: the budget option
Torch-on felt costs £40 to £80 per square metre, which works out at £700 to £1,500 fitted on a single garage. A three-layer system laid properly lasts 10 to 15 years, sometimes 20 with good drainage. Felt suits detached garages used for parking and storage where keeping the upfront cost down matters most. The trade-off is that felt becomes brittle with age and is the most likely of the three to crack, blister and let water in.
EPDM rubber: the mid-range favourite
EPDM costs £80 to £120 per square metre, or £1,000 to £2,500 fitted on a single garage. It is a single sheet of rubber membrane bonded to the deck, so there are no seams for water to find, and it copes with UK weather from January frost to summer heat without degrading. A quality rubber roof installation carries an expected lifespan of 25 to 30 years and often a 20-year manufacturer guarantee, which is why EPDM has become the most popular upgrade from tired felt.
GRP fibreglass: the premium finish
GRP costs £90 to £130 per square metre, or £1,200 to £3,000 fitted on a single garage. The resin is laid wet and cures into a hard, seamless shell with a clean grey finish that lasts 25 to 30 years. GRP is the strongest of the three and takes foot traffic well, but the resin needs dry, mild weather to cure, so installation is more weather-dependent than felt or EPDM.
Single Garage Roof Replacement Price
The single garage roof replacement price in 2026 is £700 to £1,500 in felt, £1,000 to £2,500 in EPDM and £1,200 to £3,000 in GRP, based on a roof of 15 to 20 square metres. Those figures include stripping the old covering, materials, labour and waste disposal.
For a double garage of 30 to 40 square metres, budget £1,000 to £1,500 for felt, £1,800 to £3,500 for EPDM and £2,200 to £4,500 for GRP. The quote rises if the timber deck needs attention. Wet or rotten boards add £15 to £25 per square metre on top of the membrane cost, and soft decking is a common find under a felt roof that has been leaking for a while.
Asbestos Garage Roof Removal Cost
The asbestos garage roof removal cost in 2026 is £450 to £900 for a single garage and £800 to £1,600 for a double, including safe disposal at a licensed hazardous waste facility. Corrugated asbestos cement sheets were fitted on thousands of UK garages before the material was banned in 1999, so any garage built before 2000 should be checked before work starts.
Removing bonded asbestos cement is classed as non-licensed work, but it still falls under the Control of Asbestos Regulations 2012, so it belongs with a trained, insured contractor rather than a skip and a crowbar. If you are unsure what your roof is made of, an asbestos survey costs around £325. Once the sheets are gone, a new covering is fitted on the open frame, and a full removal plus a new steel or EPDM roof typically comes to £1,400 to £2,800 for a single garage.
What Else Affects Your Quote?
Beyond size and material, the final quote reflects access, deck condition, insulation and where you live in the UK. These are the most common extras:
- Deck replacement: £15 to £25 per square metre for new OSB or plywood boards.
- New fascias, trims and edge details: often £100 to £300 depending on the perimeter.
- Scaffolding or access towers: needed where the garage adjoins the house or sits above a slope.
- Skip hire and disposal: usually included, but check the quote states it.
- Insulation upgrade: converting to a warm roof adds cost but matters if the garage is heated or being converted.
Regional labour rates also play a part. Prices in London and the South East sit above the national average, while the North East, including County Durham, is typically below it.
Felt, EPDM or GRP: Which Should You Choose?
Felt is the right choice for a tight budget, EPDM for the best balance of price and lifespan, and GRP for a hard, seamless finish that will take foot traffic. Measured per year of life rather than upfront cost, EPDM and GRP usually work out cheaper than felt, because a £900 felt roof replaced every 12 years costs more over 30 years than an £1,800 EPDM roof fitted once.
A simple way to decide: if you plan to sell within five years, felt protects the sale at minimal cost. If you are staying put, EPDM or GRP means you will not pay for this job twice.
Garage Roof Quotes in County Durham
Prestige Roofing replaces felt, EPDM and GRP garage roofs across Bishop Auckland, Durham, Darlington and the wider North East. Every job starts with a free inspection and a written, itemised quote, so you can see exactly what the roof area, materials and any deck work will cost before anything starts. Call 0800 206 2370 or request a free estimate online.
