
Roofer in Crawley, from Three Bridges terraces to Forge Wood new-builds
Perished felt, loose verges and flat garage roofs are the daily work of Sure Seal, your roofer in Crawley from Ifield to Maidenbower. There is no call-out charge, and your quote is free.
Free roofing quote in Crawley
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Or call 01273 115938. No deposit, no call-out charge.

How Crawley was built, and what that means for your roof
Most of Crawley went up quickly after it was named a new town in 1947, neighbourhood by neighbourhood, and the roofs show it. West Green, Northgate, Langley Green, Three Bridges and Pound Hill are full of 1950s and 1960s terraces and semis under concrete interlocking tiles laid over bitumen felt. That felt has had its day. It turns brittle, tears at the eaves and lets the wind lift tiles from beneath. Mortar-bedded ridges and verges crack and drop onto the path. We rebed or mechanically fix ridges and verges and renew perished felt at the eaves so the tiles sit tight again.
The later neighbourhoods have their own habits. Furnace Green, Broadfield and Bewbush added estates with plenty of flat-roofed garages, porches and link blocks, many sitting under trees that drop leaves into every outlet. Maidenbower, Forge Wood and Kilnwood Vale brought modern builds with plastic dry verge caps and dry ridge systems, and those caps crack and unclip in a strong wind. Back in the old town around the High Street, older buildings carry clay tiles and, here and there, heavy Horsham stone. We handle all of it, and the drone lets you see your own roof before you decide anything.
About 20 miles north of Brighton, straight up the A23 · Postcodes RH10, RH11
Common Crawley roof problems
Each age of Crawley housing brings its own weak spot.
Perished felt under concrete tiles
Old bitumen felt goes brittle and splits at the eaves, so rain blown under the tiles runs straight onto the ceiling joists. We replace the damaged section, or the whole run, with breathable membrane.
Dropped mortar verges
The sand and cement along the gable end cracks with frost and falls away in chunks. We rebed it with a proper mix or fit a dry verge system that needs no mortar at all.
Tired flat garage roofs
Felt on garages, porches and link blocks blisters and ponds, especially under trees. We overlay it or strip and replace in GRP fibreglass, EPDM rubber or torch-on felt, whichever suits the roof.
Loose dry verge caps on new-builds
Plastic verge caps on Maidenbower and Forge Wood homes crack or unclip in a gale and leave the tile ends open. We refit matching caps and check the ridge fixings while we are up there.
Roofing and guttering in Crawley

Roofing
Repairs, new roofs, slate, leadwork, conservatory roofs and more, all from one family-run Brighton roofer with over 30 years' experience.
- Roof repairs
- Emergency roof repairs
- New roofs
- Slate and tile roofing

Flat roofs
GRP fibreglass, EPDM rubber and torch-on felt flat roofs, laid on a sound deck and fully guaranteed by a family firm.
- Flat roof repairs
- GRP fibreglass roofing
- EPDM rubber roofing
- Felt roofing

Chimneys
Repointing, rebuilds, removals and lead flashing for chimneys across Brighton and Sussex, checked first by drone.
- Chimney repointing
- Chimney flashing
- Chimney rebuilds
- Chimney removal

Guttering
Gutter repairs, new uPVC gutters and downpipes, fascias and soffits, supplied and fitted by the Sure Seal team.
- Gutter repairs
- Gutter replacement
- Fascias and soffits

Gutter cleaning
Gutters cleared of leaves, moss and nesting debris, downpipes flushed, joints checked and all the mess taken away.
See gutter cleaning
Free drone survey
See every slate, joint and gutter on your roof before you decide anything. Free with every quote.
Book your surveyRated 5.0 by homeowners who used us
Great service for flat & tiled roof repair. Professional and knowledgeable advice on works required. Good management which gave quick response and completion of works required.
We had an issue with a leak coming from our chimney and on getting up there realised our flat roof had been installed poorly. Brendan was so professional throughout, talking us through everything and not pressuring us to make quick decisions regarding the repair. His team were very efficient and got the job done in 2 days. Brendan kept me updated throughout the job, sending photos of the work. His team left the place spotless, even washing down the roof on completion. Having had a few quotes from some rather suspect companies, these guys are so genuine and clearly take pride in doing the job well. Would recommend and call again if needed.
If you have any roofing work or repairs to be done, then look no further than Sureseal Roofing & Guttering. I have found William and his team to be responsive & professional. They were able to address all my queries and advise wherever necessary. Most importantly their standard of finished work measured upto what had been committed, as well as my expectations of high quality. I whole-heartedly recommend their work.
Every job guaranteed, down to a single tile
What you get from us, in writing, on every job:
- All work fully guaranteed, even the smallest repair
- No deposit. You pay when the job is done
- No call-out charge and a free written quote
- Free drone survey so you see the problem yourself
- Fully insured roofing and guttering team
- All waste removed, site left spotless
Roofing questions from Crawley
Are the concrete tiles on my 1960s Crawley house worth keeping?
In many cases, yes. Concrete interlocking tiles from that era wear on the surface but stay sound, while the felt and battens underneath fail first. We lift a section, check the battens and membrane, and tell you straight whether a repair or a strip and re-lay with the same tiles will do the job, or whether new tiles are the better spend.
My new-build in Forge Wood has a leak, should I call the developer first?
If the house is still inside the developer's warranty period, report it to them first so you do not affect a claim. If the developer is slow to act, the cover has ended or the problem is storm damage, call us. We survey with the drone, send you the photos and tell you what failed, which is useful evidence either way.
Can you replace the flat roof on a garage in a Crawley garage block?
Yes, and if neighbours in the same block want theirs done at the same visit, we quote each garage separately so everyone pays only for their own roof. GRP fibreglass and EPDM rubber both suit garage roofs well. We strip the old felt, check the decking boards and replace any that have gone soft before the new covering goes on.
Does my Crawley garage roof contain asbestos?
It can, if the garage is post-war and has a grey corrugated cement roof. Asbestos cement sheet was widely used on garages and sheds right up to the late 1990s, and much of new-town Crawley was built in that period. Do not drill, cut or jet-wash it. Sure Seal carry out asbestos roof removal and replacement, and fit a new watertight roof in its place.
Nearby towns we cover
Roof or gutter problem in Crawley?
Tell us what is going on and Jamie will call you back with a time for your free drone survey.