07793 436 150
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Flat Roofing Specialists Across Sussex

Flat roof repairs, GRP fibreglass, EPDM rubber and full replacements. Free, no-obligation survey, usually within 48 hours.
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18+ Years Experience

Serving All Of Sussex

600+ Happy Customers

4.9 · 120+ Checkatrade reviews

About Us

Trusted flat roofing contractors in Sussex

L.F. Flat Roofing is a Checkatrade-verified roofing company with over 18 years’ experience installing, repairing and replacing flat roofs across Sussex. From a small felt repair to a full GRP fibreglass or EPDM rubber roof, we deliver watertight, guaranteed workmanship at a fair, fixed price.

Every job starts with a free, no-obligation survey, we assess your roof, explain your options honestly, and give you a written fixed-price quote.

Call 07793436150

Meet the team →

18+

Years experience

600+
Roofs completed
4.9 ★
Checkatrade rating
10 year
Workmanship guarantee
What We Do

Our flat roofing service

worker installing epdm roofing material on a resid 2026 01 09 11 23 59 utc

GRP Fibreglass

Seamless fibreglass roofing with a 25–30 year lifespan and no joints to fail, ideal for extensions, dormers and garages.
GRP details
closeup of worker hands installing yellow ceramic 2026 03 17 05 06 35 utc

EPDM Rubber

Single-ply rubber fitted in one piece, flexible, UV-stable and low maintenance. Cost-effective for larger flat roofs.
EDPM details
a metal black gutter on a roof covered with ceram 2026 01 09 01 07 09 utc

Repairs & Leaks

Fast repairs for leaks, ponding and blistering. We find the real cause and advise repair vs. replacement honestly.
Repair details
two men assembling a roof skylight window 2026 01 07 05 51 53 utc

Fascias & Gutters

Complete uPVC roofline replacement, fascias, soffits and guttering, to protect your property from water damage.
Roofline details
Quality Work, Clear Communication

Why we stand apart

Choosing the right roofer is about trust, not just price. With over 15 years of experience across Sussex, LF Flat Roofing delivers a professional service with clear communication, tidy workmanship, and a full written guarantee on completed work. Customers regularly mention our courteous approach, hard work, and clean handover.

We are also a BMI Icopal-approved contractor, meaning our flat roofing installations meet strict manufacturer requirements, designed to give you extra peace of mind that the system is fitted correctly and to a recognised standard.

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RESTEC Roof of the Month:

LF Flat Roofing won RESTEC Roof of the month in November 2025.

Restec roof of the month
Our Approach

Flat roofing done right

We deliver durable, weather-resistant flat roofing solutions built to last. Trust our expertise to protect your property with quality workmanship and reliable service.
Our Experience

Over fifteen years serving Sussex homes

We’ve seen every roof problem Sussex weather throws at us. That experience keeps your home protected.
About Us
Peace Of Mind

Ten-year workmanship guarantee on all jobs

We stand behind our work. If something fails due to our installation, we fix it at no cost.

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Coverage

We service all of Sussex and surrounding areas

Local knowledge, local response times. We’re here when you need us, wherever you are in Sussex.
Reviews

What our customers say

"Liam and team did an overlay on our roof on 4th Feb 2026 and we are very pleased with the result. They arrived on time and left everything tidy. We were given a 15yr guarantee and we felt it was good value for money. We would highly recommend this hardworking, friendly team."
Verified Checkatrade Reviewer
Verified Checkatrade ReviewerHomeowner, Horley
"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."
Verified Checkatrade Reviewer
Verified Checkatrade ReviewerHomeowner, Crawley
"LF Flat Roofing I would highly recommend. Liam and his team were very professional and completed all works to a high standard and left every job clean and tidy. We have used Liam and his team about 5 times now and will always be our go to company 5* service every time."
Verified Checkatrade Reviewer
Verified Checkatrade ReviewerHomeowner, Brighton
Why choose us

Three reasons homeowners trust
LF Flat Roofing

We’ve built our reputation on showing up, doing the work right, and standing behind it. That’s what matters.

Trusted advice

Honest Advice

You will always receive honest, straightforward advice based on the actual condition of your roof. If a repair is sufficient, we will say so. If replacement is the better long-term option, we will explain why.

Quality workmanship

Quality Workmanship

Every job is completed with careful preparation, correct fixing methods, and attention to detail at every stage. All materials are installed properly to deliver a roof that performs well, looks smart, and lasts.

Local

Local Experts

As a Sussex-based roofing company, we understand local property styles, common roofing issues, and the demands of the local climate. Customers deal with a local team that takes pride in its reputation and stands by their work.
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Portfolio

Recent projects

We carry the certifications and guarantees that matter. Every job backed by our commitment to quality and your peace of mind.

See All Projects
IMG 5939

GRP Roof & Leak Prevention in Burgess Hill

View Project
IMG 5234

GRP Roofing Project with Ventilation Improvements in Newhaven

View Project
IMG 7246

GRP Dormer & Roofline Renewal in Steyning

View Project
IMG 7276

Warm Roof Garden Room with Built Up Felt System in Upper Beeding

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IMG 5939

GRP Roof & Leak Prevention in Burgess Hill

View Project
IMG 5234

GRP Roofing Project with Ventilation Improvements in Newhaven

View Project
IMG 7246

GRP Dormer & Roofline Renewal in Steyning

View Project

Need a new roof or a repair?

"Liam was incredibly knowledgeable and has done a fantastic job of relaying a new flat roof for us!"
Checkatrade tick
Verified Reviewer
Homeowner, Crawley
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Frequently Asked Questions

Find answers to common questions about our roofing services.

How do I know if my roof needs repairing or replacing?

Common signs include recurring leaks, damp patches on ceilings or walls, loose or missing tiles, blistering on flat roofs, and overflowing guttering. During an inspection, we assess whether a repair will solve the issue long-term or whether replacement is the safer and more cost-effective option.

Yes. We provide free, no-obligation inspections and clear quotations. You will be given honest advice on the condition of your roof and a breakdown of recommended work, with no pressure to proceed.
We handle everything from minor repairs to full roof replacements. If a small repair is all that is needed, we will not recommend unnecessary work.
We work on flat and pitched roofs for domestic and commercial properties, including felt roofing, GRP fibreglass, tiled roofs, rooflines, skylights, and associated roofing systems.
Timeframes depend on the type and size of the job. Small repairs may be completed in a few hours, while larger projects such as full roof replacements typically take several days. Clear timescales are provided before work begins.
Disruption is kept to a minimum. We work efficiently, maintain a tidy site, and communicate clearly throughout the job so you know what to expect at each stage.
Yes. All work is carried out by fully insured professionals, giving you peace of mind that your property is protected throughout the project.
Yes. Guarantees are available depending on the type of roofing system installed. As approved contractors for certain systems, manufacturer-backed guarantees may also apply.
We work across Sussex, including Brighton, Crawley, Horsham, and surrounding areas.
If you have a question for us, book a call with our team.
Book Your Free Roof Survey