Flat Roofing in Crawley
Flat roof repairs, replacements and warm roofs for homeowners, landlords and businesses across Crawley. Free survey, honest advice and a written guarantee.
Flat Roof Repairs and Replacement in Crawley
Crawley was built as a new town after the war, and many homes from that time still have flat-roofed garages, porches, link extensions and dormers. A lot of those roofs have been patched or overlaid more than once. When one starts leaking, the real question is whether a repair will hold or whether the roof has reached the end of its life.
We’ll tell you which, and why, after a proper look at the covering, the deck, the falls and the outlets. If a flat roof repair will do the job, we’ll say so. If it won’t, we’ll set out your flat roof replacement options clearly, with prices for each.
Flat Roof Problems We Fix in Crawley
We work right across the town, from Pound Hill, Maidenbower and Three Bridges to Ifield, Langley Green and Bewbush, and down through Tilgate, Furnace Green, Southgate and Broadfield. Most calls are about the same few problems:
- Leaks that come back every winter after a patch repair
- Damp patches and staining on ceilings under garages and extensions
- Water pooling on the roof because there’s no proper fall to the outlet
- Blistered, cracked or lifting felt
- Cold rooms and condensation under older roofs with little or no insulation
- Soft or rotten decking where water has been getting in for years
Recent Flat Roofing Work in Crawley
Three warm roofs in two weeks
Three houses on one terrace, each stripped back and rebuilt as a warm roof: 120mm insulation above the deck, a 3-layer built-up felt system on top, and new fascias and soffits to finish. All three were completed within two weeks.
A garage roof that had leaked for years
The garage and utility roofs had been patched for years and kept failing. We replaced the damaged timber, laid a new OSB3 deck, formed proper falls to a new outlet and laid a seamless GRP fibreglass roof. The utility roof was built warm with PIR insulation, and we added a flat roof light. Finished in one week.
What's included in our flat roofing service
Comprehensive survey
Clear recommendation
High-quality materials
Professional installation
Warm roof upgrades
Full aftercare advice
How we work with you
Five straightforward steps from consultation to completion. We keep you informed at every stage and deliver the results you expect.
01 Consultation
A quick call to understand the issue or project and arrange a visit.
02 Site Survey
03 Transparent Quote
04 Professional Installation
05 Final Inspection and Aftercare
Types of flat roofing we can install
Torch-on felt roofing
A proven, cost-effective system laid in layers and heat-bonded for a watertight seal. A sensible choice for garages, porches and smaller roofs.
GRP fibreglass
Cures into one seamless layer with no joints or laps, so it’s ideal for roofs with lots of corners and upstands. Low maintenance and long-lasting.
EPDM rubber roofing
A single-ply rubber membrane laid in as few pieces as possible, so there are very few seams. Well suited to larger roofs and extensions.
Warm roof construction
Insulation goes above the deck, not between the joists, so the roof stays warm and dry inside and doesn’t rot from within.
What our customers say
Book a Free Flat Roof Survey in Crawley
Tell us what’s happening with your roof and we’ll arrange a visit. No obligation, just clear advice.
Frequently asked questions
Do you cover all of Crawley?
Yes. We cover every neighbourhood in Crawley (RH10 and RH11), plus nearby Horley, Copthorne, Crawley Down and East Grinstead. Book a free survey and we’ll come to you.
My garage roof keeps leaking after repairs. Should I replace it?
If a roof has been patched several times and the leak keeps moving, the problem is usually the deck, the falls or the outlet, not just the covering. Another patch won’t fix that. We’ll check the structure and tell you honestly whether a repair is worth it. On this Crawley garage, a new deck, proper falls and a GRP roof ended years of leaks.
Is GRP or felt better for a garage or extension?
Both work well when they’re fitted properly. GRP fibreglass is seamless, so it’s the better choice on roofs with lots of corners, upstands and outlets. Torch-on felt costs less and suits simpler, smaller roofs. We’ll recommend the right one for your roof, not the most expensive one.
What is a warm roof, and is it worth it?
A warm roof has the insulation above the deck instead of between the joists. That keeps the structure on the warm side, so condensation doesn’t build up and rot the timber from the inside. If your roof needs replacing anyway, upgrading to a warm roof is usually worth it, especially over a room you use.
Do you work for landlords and businesses?
Yes. We work on homes, rental properties, blocks of flats and commercial buildings, from a single garage roof to multi-property jobs like the three Crawley houses we re-roofed in two weeks.
What guarantee do I get?
Every job comes with a written guarantee. New flat roofs come with a 10-year written guarantee, and we’re a BMI Icopal approved installer.