Flat Roofing · Sussex
Flat Roofing In Brighton & Burgess Hill
Leaking, ponding or blistering flat roof?
EPDM rubber, GRP fibreglass and felt flat roofs across Sussex
Flat roofs on extensions, garages, dormers and porches take a hammering from Sussex weather, and old felt in particular has a habit of splitting, blistering and letting water pool. We install and repair flat roofs across Brighton, Burgess Hill and the surrounding area using modern EPDM rubber, GRP fibreglass and high-performance felt systems - long-lasting coverings that shrug off the rain far better than the tired felt they replace. Whether it's a small porch or a full extension, we'll recommend the right system and lay it properly.
Free Flat Roofing Quote
Send us your details and the N Fullers team will get back to you with a free, no-obligation quote.
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Why Choose Us For Flat Roofing In Brighton & Burgess Hill?
EPDM Rubber Roofs
Single-piece rubber membranes with no seams to fail - one of the most reliable, long-life flat-roof coverings available.
GRP Fibreglass
Seamless fibreglass roofs with a hard-wearing finish, ideal where the roof is walked on or on show.
Modern Felt Systems
Torch-on felt done to a high standard where it's the right fit - a big step up from old pour-and-roll felt.
Ponding Sorted
We build in the right falls so water runs off to the outlet instead of sitting in pools that shorten a roof's life.
Warm & Cold Roofs
Properly insulated warm-roof and cold-roof build-ups that meet current building regulations.
Neat Edges & Trims
Crisp drip trims, upstands and flashings that finish the roof off and keep water off the walls below.
Our Flat Roofing Process
Free Roof Survey & Quote
We inspect the roof, talk through your options honestly, and give you a clear written quote with no obligation.
Scaffold & Safe Access
Where the job needs it we set up proper scaffold or safe access, and protect the areas around the work.
Strip & Prepare
We strip back and prepare the roof so the new work goes onto sound, stable material - not straight over failing covering.
Carry Out The Work
We complete the agreed work with quality materials and proven methods, checking as we go.
Flashings & Detailing
We handle the details that make a roof last - lead flashings, ridges, verges and the joins around chimneys and valleys.
Final Inspection & Clean-Up
We walk the finished job with you, clear all debris and waste away, and hand over your written workmanship guarantee.
Our Workmanship Guarantee
Every job we complete is backed by a written workmanship guarantee, and the materials we use - tiles, slates, membranes, lead, guttering and coatings - carry their own manufacturer's warranty on top. Before any work starts we'll walk you through exactly what's covered and for how long, in plain terms.
We're fully licensed and insured, so you're protected from the first site visit through to the final walk-around. If something isn't right, we come back and fix it - that's what "100% satisfaction guaranteed" actually means to us.
100%
Satisfaction Guaranteed
Licensed
& Fully Insured
Written
Workmanship Guarantee
Premium
Materials & Products
What To Look For In A Flat Roofing Specialist
The Right System For The Job
EPDM, GRP and felt each suit different roofs. A good flat roofer recommends the system that fits your roof, budget and how the roof is used - not just whatever they always fit. On a garage that's different from a walked-on balcony or a visible dormer.
Proper Falls & Drainage
Most flat-roof failures come down to standing water. The build-up needs the right falls so water actually reaches the outlet. Look for a roofer who talks about falls and firrings, not one who just relays a covering over the same flat, ponding deck.
Insulation Done Right
A modern flat roof isn't just a waterproof layer - it's an insulated build-up that has to meet building regs and avoid condensation. Whether it's a warm or cold roof, the insulation and any ventilation need to be specified correctly, or you get damp from the inside.
EPDM Rubber vs Old Felt
| N Fullers Roofing | Old Pour-On Felt | |
|---|---|---|
| Seams | One-piece, no seams to split | Multiple seams that fail over time |
| Lifespan | Decades from a quality install | Often 10 years or less |
| Weather | Handles UV, heat and frost well | Blisters, cracks and goes brittle |
| Ponding | Built with proper falls | Water often sits and pools |
| Maintenance | Very low upkeep | Regular patching needed |
Sound Roof, Sound Gutters
A new flat roof is the ideal time to sort the guttering and outlets around it, so water gets away cleanly. We handle guttering, fascias and soffits at the same time where it makes sense.
See guttering & fasciasFlat Roofing Cost In Brighton & Burgess Hill
A small EPDM or GRP flat roof - a porch or bay - can start from around £700 to £1,500, while a garage or single-storey extension roof typically runs from around £1,800 to £4,000+, depending on size, the system chosen, insulation and any new trims or outlets. Every quote is free and based on a proper look at the roof.
See Full Cost GuideFrequently Asked Questions
Which is best - EPDM, fibreglass or felt?
It depends on the roof. EPDM rubber is superb for garages, extensions and dormers where you want a seamless, low-maintenance covering. GRP fibreglass gives a harder, walked-on finish and looks smart on visible roofs and balconies. Modern felt still has its place on a budget. We'll recommend the best fit for your roof and how it's used.
How long does a flat roof last?
A quality EPDM or GRP roof, laid properly with the right falls, can last several decades - far longer than the old felt roofs they usually replace. The biggest factor is the standard of the installation and drainage, which is exactly where we focus.
Can you fix ponding water on my existing flat roof?
Often, yes. Ponding usually comes from a lack of fall in the deck. We can build in tapered firrings or additional falls when we recover the roof so water runs to the outlet instead of sitting in pools. We'll assess whether a repair or a full recover is the better option.
Do flat roofs need building regulations approval?
Replacing a like-for-like covering usually doesn't, but if we're upgrading the insulation or replacing more than a set proportion of the roof, building regulations on thermal performance can apply. We'll advise what's needed and make sure the build-up complies.
Will a new flat roof help with insulation?
Yes. A modern warm-roof build-up adds insulation above the deck, which can make the room below noticeably warmer and cut condensation. We'll specify the right insulation for your roof as part of the quote.
Is the work guaranteed?
Yes. Our flat roofs come with a written workmanship guarantee, and the membrane systems we fit carry their own manufacturer's warranty on top. We'll explain what's covered before we start.
What Sussex Homeowners Say
Real feedback from customers across Brighton, Burgess Hill and Sussex. Star ratings reflect completed roofing work.
"We had a leak coming through the bedroom ceiling of our Victorian terrace in Hove. N Fullers traced it to a cracked lead flashing round the chimney - not where the stain was - and had it sorted properly within a couple of days. Tidy, honest and a fair price."
"The old felt roof on our extension in Burgess Hill was leaking every time it rained. They fitted a new EPDM rubber roof with proper falls so no more pooling. Great job, cleaned up after themselves and explained everything clearly."
"Full re-roof on our 1930s semi in Worthing - stripped it back, new underlay, battens and tiles, all new flashings. The scaffolding went up and the whole job was done in under a week. Looks superb and the quote was itemised with no surprises."
"Our roof in Haywards Heath was green with moss and the gutters kept blocking. They cleared the lot, treated the roof and cleared the gutters, and spotted a slipped tile while they were up there. Really pleased with the difference."
"Chimney on our Lewes cottage was crumbling and letting damp in. N Fullers repointed it, renewed the flaunching and put proper lead flashings in. They understood it's a period property and did it sympathetically. Highly recommend."
Get A Free Flat Roofing Quote
Call N Fullers today or send us a message and we'll arrange a free, no-obligation flat roofing quote anywhere across Brighton, Burgess Hill and Sussex.