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Your estimate
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 Wisbech is £1,500 to £6,300 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.
| Roof | Felt (torch-on) | EPDM rubber | GRP fibreglass |
|---|---|---|---|
| Single garage (about 18m²) | £1,500 to £2,100 | £1,700 to £2,500 | £2,050 to £2,850 |
| Extension roof (about 25m²) | £2,100 to £2,900 | £2,350 to £3,450 | £2,850 to £3,950 |
| Large extension or dormer (about 40m²) | £3,350 to £4,650 | £3,750 to £5,500 | £4,600 to £6,300 |
Ranges are 2026 prices for Wisbech, 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
A single garage is about 18m², a single-storey extension about 25m². Price per m² does the rest.
Torch-on felt is £80 to £110 per m², EPDM rubber £90 to £130 and GRP fibreglass £110 to £150.
A soft or rotten deck has to be replaced before the new covering goes on. We check it and tell you first.
Each roof light, wall and edge takes detailing. That is where cheap flat roofs leak, so we price it properly.
Real customers
"Huge thanks to Big Red Roofing for the outstanding work they carried out on our home after recent storm damage. From the very first visit, Mark was warm, friendly, and incredibly informative. Multiple teams were brought in to make sure the work was completed to the highest standard, and the roof was replaced quickly, safely, and with great attention to detail. Fantastic workmanship, brilliant communication, and a genuinely great team to work with."
Verified Google review"Absolutely delighted with the work Mark at Big Red Roofing did replacing the guttering at the front of my house. From start to finish, Mark was professional, friendly and reliable, and the quality of the workmanship is excellent."
Verified Google review"I had people tell me they would come to give a quote, and either they would not show up and or ask for an absolute fortune. When Mark came to my property he explained the issues I was having in such a way that it was very easy to understand. His professionalism was second to none and his craftsmanship was incredible."
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