Flat Roofing Services in Crawley

LF Flat Roofing provides professional installation, repairs, and maintenance for residential and commercial properties in Crawley.

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What do you need?

Flat Roofing Repairs & Replacement Crawley

If your flat roof is showing signs of damage, the right solution will depend on the overall condition of the roof. In many cases, a targeted repair can resolve isolated problems and extend the life of the existing roof.

Problems we solve

Leaking roofs demand immediate attention

Flat roofing problems rarely fix themselves. What may start as a small issue can quickly develop into a more serious and expensive repair if left unresolved. Our team helps property owners across Crawley from Maidenbower and Pound Hill to Ifield and Broadfield identify problems early and choose the most practical solution before further damage occurs.

Common flat roofing problems we deal with include:

Leaking flat roofs causing damp patches, water ingress, and internal staining
Blistering, cracking, or lifting membranes that allow water to penetrate the roof surface
Pooling water caused by poor drainage or ageing roofing materials
Cold rooms and heat loss from older flat roof construction and worn insulation
Loose ridge, hip, or verge areas that allow wind-driven rain to enter the property
Recurring mortar failures on ridge or verge lines that repeatedly require repair

Flat Roofing Crawley

What's included in our flat roofing service

Comprehensive survey

We assess the roof covering, deck, insulation, drainage, and roof edges.

Clear recommendation

On repair vs replacement, we provide clear options before the work goes ahead.

High-quality materials

We use the highest quality materials matched to the roof type and property use.

Professional installation

Every job is undertaken with careful detailing around edges, outlets, and joins.

Warm roof upgrades

This addon is available to improve energy efficiency and reduce condensation risk.

Full aftercare advice

Every installation comes with a guarantee and support for peace of mind.

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

We inspect the roof, identify the cause of any problems, and take measurements.

03 Transparent Quote

Clear pricing and recommended options, with timescales and materials explained.

04 Professional Installation

Safe, tidy workmanship with a focus on watertight detailing.

05 Final Inspection and Aftercare

We check drainage, seams, edges, and finish quality, then share aftercare guidance.

Flat Roof Installation Crawley

Types of flat roofing we can install

Torch on felt roofing

A proven, cost-effective system for many flat and low-pitch roofs. Installed in layered sections and heat-bonded to create a watertight seal.

GRP fibreglass

A modern, joint-free system installed over solid decking with resin, matting, and topcoat. Known for a clean finish, low maintenance, and long lifespan.

Polycarbonate roofs

A lightweight and durable option for canopies, patio covers, conservatories, and walkways, allowing natural light while staying weather-resistant.

Warm roof construction

Insulation is fitted above the roof structure and below the weatherproof layer, helping reduce heat loss and lowering condensation risk.

What our customers say

"Liam did a great job resurfacing the flat roof on our house. Even with inclement weather the job was finished in good time! The quote was very reasonable and Liam listened to what we needed and also to what was in our budget. Liam was very helpful, polite and tidy."

"Liam and team did a fantastic job of replacing our roof and refelting another flat area. Everything was done on time and to a high standard for a reasonable price. We were very happy with it service we received. There was a lot of mess while they were working but they left everything very clean and tidy once they finished."

"Liam and Reece stripped and relaid a flat roof over the hallway in a day, making sure all defects were repaired, and kept me informed about progress, providing before and after photos. They were professional and courteous, and cleared up all the resulting debris until nothing remained. A good job at a reasonable cost."

Need a new roof or a repair?

If your flat roof is leaking, ageing, or due an upgrade, we can help with clear advice and a watertight result.

Frequently asked questions

Find answers to common questions about our flat roofing services.

How long should a flat roof last?

A well-installed flat roof in Crawley should last between 20 and 30 years, depending on the material used and how well it’s maintained. GRP (fibreglass) and EPDM rubber systems tend to offer the longest lifespan, while traditional felt roofs may need attention sooner — particularly on properties exposed to the weather patterns typical of West Sussex. Regular inspections can significantly extend the life of any flat roof.

Is torch-on felt or GRP better?

Both are reliable options, but GRP (fibreglass) is generally the preferred choice for most properties in Crawley due to its durability, seamless finish, and low maintenance requirements. Torch-on felt is a more cost-effective upfront option and works well in the right situations. We’ll assess your roof and recommend the best system for your property — whether it’s a house in Tilgate, a garage in Three Bridges, or a commercial unit near the town centre.

What is a warm roof and do I need one?

A warm roof is a flat roof construction where the insulation sits above the structural deck, keeping the roof structure itself at a stable temperature and reducing the risk of condensation. It’s increasingly the recommended approach for properties in Crawley, especially older homes in areas like Northgate or Bewbush where heat loss through an uninsulated flat roof can be significant. We can advise whether upgrading to a warm roof construction is the right move for your property.

Can you repair a flat roof instead of replacing it?

In many cases, yes. If the underlying structure is sound and the damage is isolated, a targeted repair is often the most cost-effective solution. We carry out honest assessments for property owners across Crawley — if a repair will do the job, we’ll say so. If the roof is beyond economic repair, we’ll explain why and set out your replacement options clearly.

Do you work on garages, dormers, and balconies?

Yes — we work on all types of flat roofing structures, including garages, dormer extensions, bay tops, and balconies. We cover the full Crawley area including surrounding neighbourhoods such as Horley, Burgess Hill, and East Grinstead, and handle everything from small domestic jobs to larger commercial flat roofing projects.

Can I submit a question before booking?

Absolutely. If you’re not ready to book but have a question about your flat roof in Crawley, feel free to get in touch. We’re happy to offer guidance before any commitment is made — whether you’re trying to work out if a repair or replacement is needed, or just want to understand your options.

If you have a question for us, book a call with our team.