Flat Roof Replacement · All Sussex
Stop Patching It. Replace It Once, Properly.
GRP, EPDM or felt: the right system for your roof, fitted properly and backed by a 10-year written guarantee.
- Repair or replace? A free survey tells you straight
- £0 call-out fee · no obligation, ever
- 10-year written guarantee, Icopal-approved
Repair or replace?
Recognise any of these? Your flat roof may be ready for replacement
Most flat roofs reach a point where repair stops being the right answer: the cost of repeated patches creeps toward the cost of a new roof, and each fix lasts a shorter time than the last. These are the signs we see most across Sussex. If more than one applies, a free survey will tell you for certain.
Three-plus repairs lately
You keep paying for patches and each one lasts less than the last.
Repeated failure means the deck, not the surface. Replacement gives a 20+ year fix.
Soft or sagging underfoot
The roof gives slightly when walked on, or visibly dips in places.
That’s rot in the deck. We lift the roof and replace the substrate properly.
Pooling water
Water sits on the roof for days after rain instead of draining away.
Wrong falls. We correct them with tapered insulation so it sheds cleanly.
Bubbling or cracking felt
The surface is blistering, splitting or lifting at the laps.
The layers are de-bonding and patches won’t reattach. A new system is the only lasting fix.
Stains or mould inside
Stains or mould inside
Water’s been getting in for a while. Replacing the roof is often cheaper than chasing the damage.
Roof over 20 years old
Old felt is brittle, won’t hold sealant and is past its service life.
Modern GRP and EPDM last 20–50 years. Replacing now is an upgrade, not a like-for-like swap.
Free survey • No call-out fee
Don’t keep paying for patches
The next repair could be the deck, not the surface
Book a free survey and find out whether you need a repair or a replacement, at zero cost and no obligation.
- Free survey
- £0 call-out fee
- Fixed written quote in 24 hours
Choosing the right system
GRP, EPDM or felt? We fit what suits your roof
There’s no single “best” system for every flat roof. The right answer depends on the size and shape of the roof, the deck underneath, how exposed the property is, and your budget. We install all three and recommend whichever fits the job, never whichever earns us the most.
GRP fibreglass
25–30 yrs typical lifespanBest for extensions & complex shapes
A seamless, hard-wearing fibreglass laminate. Brilliant on intricate roofs, balconies and anywhere a crisp, walk-on finish matters.
- Seamless, no joints
- Walk-on tough
- Neat around detail
EPDM rubber
30–50 yrs typical lifespanBest for large flat roofs & coastal exposure
A single rubber membrane laid in one piece. The long-life choice for big spans and exposed, weather-beaten Sussex properties.
- One seamless sheet
- Longest lifespan
- UV & coastal proof
Torch-on felt
15–25 yrs typical lifespanBest value where the deck is sound
Modern multi-layer built-up felt. The most cost-effective route when the existing deck is in good order and you want a proven, reliable system.
- Most affordable
- Proven & reliable
- Great for warm roofs
On survey we lift a small section of the existing roof to check the deck, measure the falls and flag any drainage or detailing that needs correcting. Your written quote covers the full system, any decking work, insulation upgrades where they help, and a water test on completion.
Free survey • No call-out fee
How it works
What happens when you call LF Flat Roofing
Free survey
We visit, lift a section to check the deck, measure the falls and assess every detail: upstands, skylights, drainage.
Written quote
Fixed price, system recommendation, materials and timescales, all clearly explained and sent within 24 hours.
Replacement
Old roof stripped, deck checked and replaced where needed, insulation upgraded if specified, new system fitted to spec.
Handover
Water test on completion, photo records of every stage and your 10-year written guarantee, handed over.
Don’t put it off
A failing roof won’t wait, and nor should you
A free survey tells you exactly where you stand, with a fixed written quote and no obligation. Get yours booked in before the damage spreads.
- 10-year written guarantee
- GRP, EPDM & felt fitted
- No-pressure, no upselling
Why choose us
Why Sussex homeowners choose LF Flat Roofing
10-year written guarantee
A written workmanship guarantee on every replacement, on top of the manufacturer’s product warranty. Water-tested on completion and Icopal-approved, so your roof is covered for a decade.
Icopal-approved contractor
Trained, tested and certified to install and guarantee Icopal systems to the highest standard.
Honest expert advice
We fit GRP, EPDM and felt and recommend what suits your roof. If a repair will do, we’ll say so.
Free survey, no obligation
We lift a section to check the deck, then give a fixed written quote. No call-out fee.
Tidy, professional work
We protect your property and garden, work cleanly and take all waste away.
Photo records at handover
Every stage documented: deck, insulation, membrane and finished detail.
Recent work
EPDM roofs we’ve laid across Sussex
A few recent installs. Every job is finished tidy, water-tested and handed over with photo records.
Burgess Hill
Garage flat roof · EPDM re-roof
Steyning
Rear extension · warm roof + EPDM
Newhaven
Outbuilding · full strip & EPDM
Free survey • No call-out fee
What customers say
Rated 5.0 by Sussex homeowners
“Competitive pricing, excellent standard of work. very happy with the outcome.”
“Liam recently replaced the flat front roof on our large porch following a leak. Really impressed with how it looks and how the work was carried out.”
“The work they carried out was amazing they quick clean and efficient”
Questions
EPDM roofing, your questions answered
The LF Flat Roofing team
Our promise to you
You risk absolutely nothing
Booking a survey is the easy, zero-risk first step. Here’s exactly what you’re agreeing to, and what you’re not.
Free survey, £0 call-out
We visit, get on the roof and quote for nothing. No fee, no catch.
Fixed written quote in 24 hrs
A clear price in writing, what we quote is what you pay.
No pressure, no upselling
If a repair will do, we’ll tell you. The decision is always yours.
10-year written guarantee
Water-tested on completion and guaranteed in writing for a decade.
Free survey. Written quote. No pressure, ever.
Replace your roof once, and do it right
We’ll visit, assess the roof and give you an honest recommendation with a fixed written price. If a repair will do the job, we’ll tell you.
- Icopal-approved contractor, trained & certified
- 10-year written workmanship guarantee
- Photo records provided at handover
- £0 call-out fee for survey & quote
- Serving all of Sussex