Flat roof cost in Buckingham
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What could move the final price
An estimate from 2026 roofing prices for our area, not a quote. Your fixed written quote follows a free survey, and the price we quote is the price you pay.
Flat roof cost in Buckingham is £1,600 to £6,750 in 2026, from a felt garage roof to a large extension in GRP fibreglass. The price is set by the size of the roof and the covering. Build yours in the builder above for your own range.
Flat roof prices in Buckingham by size and covering
| Roof | Felt (torch-on) | EPDM rubber | GRP fibreglass |
|---|---|---|---|
| Single garage (about 18m²) | £1,600 to £2,250 | £1,800 to £2,650 | £2,200 to £3,050 |
| Extension roof (about 25m²) | £2,200 to £3,100 | £2,500 to £3,650 | £3,050 to £4,200 |
| Large extension or dormer (about 40m²) | £3,550 to £4,950 | £4,000 to £5,850 | £4,900 to £6,750 |
Ranges are 2026 prices for Buckingham, built from published UK roofing costs with a regional adjustment, rounded to the nearest £50. Your fixed written quote follows a free survey.
Straight answers
What sets the cost of a flat roof
Size
A single garage is about 18m², a single-storey extension about 25m². Price per m² does the rest.
Covering
Torch-on felt is £80 to £110 per m², EPDM rubber £90 to £130 and GRP fibreglass £110 to £150.
The deck underneath
A soft or rotten deck has to be replaced before the new covering goes on. We check it and tell you first.
Roof lights and upstands
Each roof light, wall and edge takes detailing. That is where cheap flat roofs leak, so we price it properly.
Every flat roof from Stormshield Roofing includes
- The old covering stripped and taken away
- The deck checked and made good
- Your choice of felt, EPDM or GRP with proper edge trims and upstands
- A fixed written price and a workmanship guarantee
Real customers
What Buckingham homeowners say
"When estimating they were the only ones to actually inspect the roof! Provided photos and full explanation of the rework required to resolve the issue. Carried out the repair as planned, when planned with minimal disruption and no damage. HIGHLY RECOMMEND this business."
Checkatrade review, September 2026"Excellent, job was done well without too much distraction as I work from home, job came in under quote - 11/10"
Checkatrade review, September 2026"Cannot give anything other than a 10/10. Callback for job was quick, came out within an hr of calling. Did not try and over sell their services. Very informative about options available and not pushy at all."
Checkatrade review, September 2026Good questions
Roofing prices, answered
How much does a flat roof cost in Buckingham?
How much is a new garage roof?
Which is best, EPDM or GRP?
How long does a flat roof take?
More Buckingham roofing prices
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