Flat Roofing in Doncaster
Garage roofs, kitchen extensions, dormers and porches. Flat roof repairs and full replacements, with the details around rooflights and walls done right.
- Doncaster & surrounding villages
- Houses, bungalows & extensions
- No-obligation quotes
Proline Roofers Doncaster repairs and replaces flat roofs on extensions, garages, dormers and porches across Doncaster. Whether a flat roof can be repaired or needs replacing depends on the condition of the deck underneath as much as the covering on top, so we check both. Call 01302 438089 for a quote.
What's covered
- Flat roof leak repairs
- Full flat roof replacements
- GRP fibreglass flat roofs
- EPDM rubber flat roofs
- Felt flat roof repairs
- Replacement decking boards
- Rooflight and lantern upstands
- Edge trims and drip details
- Garage roofs
- Dormer and extension roofs
Signs a flat roof is failing
- Puddles that sit for days after rain
- Blisters, cracks or splits in the surface
- A soft or spongy feel underfoot
- Leaks where the roof meets a wall
- Drips around a rooflight
- Felt lifting at the edges
Why the edges and upstands matter
Most flat roof leaks don't come through the middle of the roof. They start where the roof meets something — a wall, a rooflight upstand, a soil pipe or the edge trim. On a new flat roof we give those junctions as much attention as the main surface. The photo shows a new flat roof with the upstand for a rooflight already formed and finished.
New flat roof with the rooflight upstand formed 
Tiled roof with dormers and rooflights, seen from above
What customers say
Excellent service from start to finish. The team did a fantastic job on my new roof, working professionally, efficiently, and leaving everything clean and tidy. The quality of the workmanship is outstanding, and I would highly recommend them to anyone needing roofing work. Thank you for a great job!
Flat roofing: common questions
Can a flat roof be repaired, or does it need replacing?
If the deck is sound and the damage is limited to one area, a repair can be the right answer. If the boards underneath are soft or the covering has failed in several places, patching tends to move the leak rather than stop it.
Which is better for a flat roof, GRP or rubber?
Both are widely used. GRP fibreglass gives a hard, seamless finish that suits roofs with some foot traffic, while EPDM rubber goes down as a single sheet and copes well with movement. The right choice depends on the roof's size, shape and use, and we'll recommend one when we quote.
Can you fit a rooflight or lantern in a flat roof?
We form upstands for rooflights and roof lanterns as part of flat roof work. Tell us what you have in mind when you get in touch.
Do you replace garage roofs?
Yes. Garage roofs are among the most common flat roofs we deal with, attached or detached.
How long does a new flat roof take?
Smaller roofs such as a single garage or porch take less time than a large extension roof, and the weather plays its part. Your quote will include an expected timescale.
Get a quote for flat roofing
The quickest way is to ring. Tell us what you've spotted and where you are, and we'll arrange to come and look.
01302 438089Prefer to write it down? Use the form and we'll call you back. No spam. No obligation.
Need a roofer in Doncaster?
Call and tell us what's going on up there.