Your garage roof plays a bigger role than you may think. It protects your car, valuable tools, equipment, and sometimes entire home projects stored underneath. Many people also turn their garages into home gyms, offices, or workshops. When the roof starts to fail, the problem quickly spreads far beyond a leak on the bonnet.
By investing in a proper garage roof replacement, you may be protecting belongings, improving energy efficiency, and even boosting the value of your property. The total cost, however, depends on the roof type, material, and where you live in the UK.
This guide explains in detail what you can expect in 2026, giving you the insight to make an informed decision before committing to a roofer’s quote.
The cost of replacing a garage roof in the UK ranges between £750 and £5,500 and more, depending on whether the roof is flat or pitched, which materials are used, and the condition of the structure.
These figures include labour and materials but exclude asbestos removal or major timber replacement:
On average, labour accounts for 40% to 60% of the total bill. A single flat felt roof might include £400 for materials and £600 for labour. With pitched roofs, labour tends to weigh even more heavily due to additional complexity.
Costs also change depending on where you live. In Manchester, for example, a homeowner can replace a 20 square metre flat roof for £1,150, including skip hire and disposal. In Surrey, on the other hand, a 25 square metre pitched tiled garage roof cost £3,800, largely due to higher labour rates and scaffolding needs.
| Region | Flat Roof (Single Garage) | Pitched Roof (Single Garage) |
| London & South East | £1,000–£1,400 | £3,000–£4,500 |
| Midlands | £850–£1,200 | £2,600–£4,000 |
| North West and North East | £750–£1,100 | £2,500–£3,800 |
| Wales | £750–£1,000 | £2,400–£3,700 |
| Scotland | £800–£1,100 | £2,600–£4,000 |
Note: Prices based on 2025 estimates, projected into early 2026. Regional variations may fluctuate due to inflation and labour demand.
Several elements influence the total price of a garage roof replacement.
The larger the roof, the more materials and labour required. A double garage costs more than a single, especially when pitched.
Flat roofs are faster and simpler to install. Pitched roofs require rafters, tiles, and often scaffolding, which can double or triple the cost.
Each option brings different lifespans, which affect long-term value:
If timbers are rotten or sagging, replacements can add £500 to £2,000.
Standard waste removal and skip hire add £300 to £1,000. With asbestos, the price rises to £50 – £150 per square metre, which can double the project cost.
Difficult access or the need for scaffolding increases labour and hire costs by £300 to £800.
Labour rates are highest in London and the South East. A roofer in Manchester may charge £150 per day, while the same job in London could be £250 per day.
Summer and early autumn are peak times for roofers, so prices may be higher. Booking in spring or late autumn can help reduce labour rates and lead times.
Upgrades such as insulation, roof windows, improved drainage, or matching house tiles all raise costs but may add long-term value.
Flat and pitched garage roofs offer different benefits and trade-offs.
Flat roofs are quicker and cheaper when re-roofing a garage. They suit garages used mostly for storage or secondary purposes. However, they are prone to pooling water, require more maintenance, and typically have shorter lifespans.
Pitched roofs are more expensive and last decades longer. They drain water better, improve insulation, and often add to a property’s kerb appeal and value.
To understand the price per square metre and year, see the Garage Roofing Materials and Prices section below.
A pitched roof with tiles or slates can make a detached garage look like part of the main home. This is especially important in areas where planning regulations or property value considerations apply.
Here’s a quick guide to the most common materials, what they cost, and how long they last.
A felt roof is the most affordable option as it typically costs between £50 and £80 per square metre. It lasts around 10 to 20 years and needs resealing every few years to stay watertight. It’s a practical pick for budget-friendly projects or garages that aren’t in daily use.
Costing £70 to £100 per square metre, EPDM rubber offers 25 to 40 years of life with minimal upkeep. As it has a flexible, weather-resistant surface, it is ideal for workshops or utility spaces where durability matters. It’s often seen as the “fit and forget” option.
At £90 to £130 per square metre, GRP roofs deliver a 25 to 30 year lifespan and a sleek, seamless finish that’s highly resistant to leaks. They’re popular for modern garages and extensions. However, poor installation or movement in the base can cause cracks, so expert fitting is key.
If you need something that’s quick to install, metal roofing costs around £40 to £90 per square metre and lasts 20 years or more. It’s lightweight and long-lasting, though it can be noisy in heavy rain and doesn’t have the same look as traditional materials.
For homeowners who want their garage to match the main house, tiled or slate roofs are the premium choice. Prices range from £70 to more than £120 per square metre, and they can last 40 to 50 years or longer. They’re heavy and more complex to install, but offer unmatched durability and kerb appeal.
Looking at the numbers long-term gives a clearer picture of value:
Replacing a garage roof is a major investment, but costs can be reduced through planning.
Flat roofs are always cheaper than converting to a pitched roof.
Felt and corrugated metal are cost-effective solutions for garages used mostly for storage.
If timbers and supports are sound, reuse them instead of replacing.
Spring and autumn are often cheaper than peak summer.
If you need guttering, fascia, or doors replaced, do them together to save on labour set-up fees.
Always request at least three detailed quotes. Itemised estimates help identify where one roofer is charging more for labour or waste disposal.
Storm damage may be covered by insurance. Some insulation upgrades may qualify for local authority schemes.
Not every roof problem requires immediate replacement, but some clear signs mean it is time to act.
If leaks return after several repairs, the membrane may have reached the end of its life.
This indicates that timbers underneath are weakened, which can lead to collapse.
Large areas of cracking or blistering are difficult to patch effectively.
Plants growing on the roof indicate water is being absorbed, which accelerates damage.
Rotting beams or joists mean the roof structure is compromised.
Once the roof has reached the end of its expected lifespan, replacement is more cost-effective than ongoing repairs.
Garages built before 2000 may contain asbestos sheets. Asbestos-cement sheets were widely used in pre-2000 garages. If present, removal and disposal must follow HSE asbestos guidance. Some asbestos-cement work can be non-licensed, but still needs a risk assessment, PPE, damping-down, and hazardous-waste consignment. Use contractors with asbestos training; waste must go to a licensed facility via a registered carrier.
Typical cost: £50 to £150 per square metre for removal and disposal (access and scaffold can increase this).
Tip: Don’t drill, break, or jet-wash asbestos sheets. If unsure, get a survey.
A small crack repair usually costs £100 to £150 and can extend your roof’s life if handled early. But if around 30% of the roof is damaged, a full replacement at about £1,200 is often the smarter long-term choice. Delaying repairs can lead to water damage in walls and nearby structures, increasing costs later on.
Replacing a garage roof in the UK is a major but worthwhile investment, and choosing the right balance between upfront cost and lifespan ensures it is both practical and cost-effective. By recognising the signs of roof failure early and obtaining multiple quotes, you can avoid unexpected expenses and secure a solution that protects your garage for decades. You can find more UK home renovation cost guides and planning tips across Renovate.
Felt lasts 10 to 20 years, EPDM lasts 25 to 40 years, GRP lasts 25 to 30 years, corrugated sheets last more than 20 years, and tiles last 40 to 50 years.
Small flat felt roofs can sometimes be handled by experienced DIYers. Pitched roofs, asbestos roofs, or large replacements should always be left to professionals.
EPDM and GRP are the most durable and resistant. Felt remains the cheapest option.
Repair minor leaks and cracks. Replace when damage is widespread or the roof has reached its lifespan.
Check reviews online, ask for references, and request itemised written quotes.
In most cases, replacing a garage roof doesn’t require planning permission if you’re not changing the height, shape, or use of the building.
If the roof height increases or you’re changing from flat to pitched, planning approval may be required. Re-roofing and renovating jobs in general can require Building Regulations approval.
Listed properties or homes in conservation areas may also have restrictions, so it’s best to check with your local council.
Compare quotes from multiple roofers, schedule work during off-peak seasons, and choose materials that balance cost with durability, such as EPDM or corrugated metal.
Regular maintenance can also help avoid major repair expenses later on.
If you are thinking about turning the garage into a home office, gym, or workshop, it can make sense to plan the roof replacement as part of that project and budget. Consider our article on garage conversion finance to learn some of the common ways homeowners fund a full conversion.
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