In short: A single garage flat roof in Buckinghamshire typically costs £750–£1,400 depending on whether it’s felt or EPDM rubber, while a double garage flat roof runs £1,000–£2,000. A pitched (tiled) garage roof costs more, roughly £1,500–£2,000 for a single garage and £2,500–£3,500 for a double. Most garages in this area have flat roofs, and felt is still the cheapest material but EPDM lasts far longer for a modest premium.
Roofers in Aylesbury and Buckinghamshire to browse
If you’re getting quotes for a garage roof, these local trade categories cover the job:
- General & pitched roofing contractors
- Flat roofing specialists – most garage roofs in Buckinghamshire are flat, so this is usually the most relevant category to start with
- Leadwork specialists
- Roof & gutter cleaning
- Roofing supplies & materials
How much does a garage roof replacement cost?
Garage roof jobs are smaller than a full house re-roof, but the per-m² cost is often similar or higher, because scaffolding, skip hire, waste disposal and a roofer’s minimum call-out charge get spread across a much smaller area. A single garage roof is roughly 15–20m², a double roughly 25–35m². Figures below are UK-wide 2026 trade data, cross-checked against a Buckinghamshire-specific quote source.
- Felt (bitumen) flat roof: roughly £50–£80/m² installed, cheapest option but the shortest lifespan at around 15–20 years
- EPDM rubber flat roof: roughly £80–£120/m² installed, typically lasting 25–30 years or more with little maintenance
- GRP (fibreglass) flat roof: less commonly quoted specifically for garages, but sits within the same general flat roof band, roughly £90–£150/m² installed, and is a single seamless surface with no joints
- Pitched, concrete tile: roughly £70–£120/m² installed on a garage-sized roof, more if the timber structure (trusses, battens) needs building from scratch rather than just re-covering
- A minor repair (sealing an edge, patching a small felt tear) can start from around £140, well below the cost of full replacement
Real Buckinghamshire prices
A quote-comparison service covering Buckinghamshire lists a bitumen felt garage roof at roughly £900–£1,000 total, including labour and materials, for a standard single garage (garage-roof.co.uk, Buckinghamshire). Separately, a cost-guide site citing Buckinghamshire and South East pricing puts a small flat roof replacement, garage-sized, at £1,500–£2,500, and flags that London and South East prices, including Buckinghamshire, tend to sit a little above the UK average (Evershield Roofing, Buckinghamshire flat roof costs). A separate Buckinghamshire example on record for a full tiled/flat garage roof job came in at approximately £1,269 (hamuch.com, Buckinghamshire). These three figures sit close enough together, all in the £900–£2,500 band for a single garage, to treat that as a realistic local range rather than an outlier from one source.
National UK trade pricing from MyJobQuote’s real-quote data broadly matches this: single garage felt £750–£1,000, single garage EPDM £1,000–£1,400, double garage felt £1,000–£1,500, double garage EPDM £1,400–£2,000 (MyJobQuote, garage roof replacement cost guide). A second UK trade source, MyBuilder, quotes materials in the same bands, felt around £50–£80/m² and EPDM around £80–£120/m² (MyBuilder, garage roof replacement cost). We haven’t used any single contractor’s own blog pricing here, only quote-aggregator and trade-platform data that draws on multiple real jobs, cross-checked against the Buckinghamshire-specific figures above.
Flat or pitched: which garage roof is worth it?
Flat is cheaper up front and is what most Buckinghamshire garages already have, so replacing like-for-like avoids any change to the structure. A felt flat roof is the lowest initial cost but needs re-covering again after 15–20 years. EPDM costs more up front, typically 30–50% more than felt, but can last 25–30 years or longer with very little maintenance, so the cost per year of use is often lower than felt over the long run.
Pitched (tiled) garage roofs cost more to install, largely because they need a timber frame or trusses under the tiles as well as the tiles themselves, not just a covering laid over an existing deck. Where a garage already has a pitched structure and only the tiles need replacing, the gap versus a flat roof narrows. Where a flat roof would need converting to pitched from scratch, expect the top of the range or above, since that’s a structural job as well as a roofing one. Maintenance on a tiled roof is generally lower than felt, similar to EPDM, since there’s no membrane to perish, but individual slipped or cracked tiles do need occasional attention.
What actually drives the price
- Garage size – a double garage roof isn’t simply double the cost of a single, because the minimum call-out and setup cost is fixed regardless of area, so the per-m² rate on a double garage often works out slightly lower
- Access – a detached garage with clear access around all sides is quicker and cheaper to scaffold or ladder-access than an attached garage hemmed in by fences, a driveway gate, or a neighbouring wall
- Material choice – felt, EPDM, GRP and tiles sit at different price points as set out above, and the choice also affects the lifespan you’re paying for
- Timber deck condition – if the roof deck (the boarding under a flat roof covering, or the battens and trusses under tiles) has rotted or delaminated, it needs replacing before the new covering goes on, which adds materials and labour that a quote based only on a visual check from ground level won’t have included
Garage roof quote red flags
- A quote that doesn’t state whether a minimum call-out charge applies, since a small garage job can be disproportionately affected by a fixed minimum fee that isn’t disclosed until the invoice
- No mention of a deck or structural inspection before the price is given, since rotten timber underneath is common on older garage roofs and changes the job significantly once uncovered
- A price that doesn’t say which material (felt, EPDM, or GRP) is included, since these differ by tens of pounds per m² and a vague “flat roof replacement” line can mean any of them
- No mention of who removes and disposes of the old roofing material and any asbestos-cement garage roof sheets, since older garages sometimes have asbestos roofing that needs licensed removal, not standard disposal
For the fuller checklist on getting and comparing roofing quotes, see the full roofing cost guide.
Related guides
For the wider picture on roofing costs in this area, see How Much Does a New Roof Cost in the UK?, our dedicated Flat Roof Replacement Cost guide covering house-sized flat roofs, and Roof Repair Cost if your garage roof only needs patching rather than full replacement.
Is EPDM or felt better for a garage roof?
EPDM rubber costs more to install, roughly £80–£120/m² against felt’s £50–£80/m², but it typically lasts 25–30 years compared with 15–20 years for felt, and needs less maintenance in between. For a garage that’s a smaller area than a house roof, the extra upfront cost of EPDM is a relatively modest total sum, so many homeowners find it the better value choice over the roof’s lifetime. Felt remains the cheaper option if minimising the upfront bill matters more than long-term cost per year.
How long does a garage roof replacement take?
A flat garage roof replacement typically takes 1–2 days. A pitched (tiled) garage roof, especially one needing new timber structure underneath rather than just a re-cover, can take up to 3 days. Weather can extend this, since flat roof coverings and felt in particular need to be laid in dry conditions.
Do I need a skip for garage roof waste?
For a single garage, the amount of waste (old felt, boarding, or tiles) is often small enough for a roofer to remove in a van, but ask upfront whether waste removal and disposal is included in the quote. For a double garage, or where the old deck is being replaced too, a small skip is more likely to be needed. Confirm who arranges and pays for this before work starts.
Can I replace a garage roof myself?
Felt and some EPDM kits are sold for DIY use, and a competent DIYer can re-cover a small, accessible, ground-level garage roof. However, working at height carries real risk, and any structural work, such as replacing rotten timber decking, trusses, or battens, is harder to get right without experience. If the garage is attached to the house, or the roof structure is being changed, professional work is strongly advisable.
Does a garage roof need building regulations approval?
A straightforward like-for-like re-covering of an existing garage roof, such as new felt or EPDM over the same structure, typically doesn’t trigger building regulations. Structural changes, such as converting a flat roof to pitched, adding significant new loading, or work on a garage that’s attached to or forms part of the main house, are more likely to need building regs sign-off. Check with your local authority or a roofer familiar with Buckinghamshire planning rules before starting structural work.