Professional roofers from Kevington Roofing and Building LTD performing a new roof installation on a house in Bromley

Expert GRP Fibreglass Roofing in East Grinstead


Call Your Local East Grinstead Expert
01689 663319
Serving East Grinstead & West Sussex

How We Install Your New Fibreglass Roof

A successful flat roofing project relies entirely on thorough preparation and expert application. Our process begins with a comprehensive assessment of your existing structure, often utilising our advanced drone roof surveys to safely inspect hard-to-reach areas. We then carefully strip away the old, failing roof coverings down to the underlying timber joists, ensuring any damaged wood is safely removed and disposed of. This vital step prevents hidden rot from compromising your new installation.Next, we install high-quality, smartply OSB3 decking boards to create a robust, structurally sound base. Over this decking, our directly employed roofing experts apply a specially formulated base resin layer, embedding top-grade fibreglass matting into the surface. This creates a flexible yet incredibly strong structural layer that conforms perfectly to the unique shape of your roof, including tricky upstands and edge trims.Finally, we apply a weatherproof topcoat finish, usually in a sleek dark grey, though other colours are available to match your property aesthetics. This final layer cures to form a seamless, watertight seal. Because the entire system bonds together chemically, there are no weak joints or seams where water can penetrate, ensuring complete peace of mind.

Croydon & South London

01689 663319

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Roofer working on a flat roof installation or repair
Trusted Flat Roofing Experts

Why Choose Kevington for GRP Fibreglass Roofing in Swanley & Kent?

Why Choose a Seamless Flat Roof System?

Choosing the right material for your flat roof replacement is crucial for the longevity and safety of your property. GRP fibreglass roofs offer a wealth of benefits that make them the standout choice for modern homeowners in Mid Sussex. First and foremost is their incredible lifespan. While a standard felt roof might need replacing every ten to fifteen years, a professionally installed GRP roof can easily last for thirty years or more without deteriorating.Complete Waterproofing: Because the fibreglass and resin form a continuous, seamless surface, there are no joints, welds, or seams to fail over time.Impact Resistance: The hardened topcoat is tough enough to withstand heavy foot traffic, making it the perfect choice for balconies, roof terraces, and walkways.High Security: GRP cannot be easily cut or vandalised, adding an extra layer of security to outbuildings, garages, and commercial premises.Aesthetic Appeal: The smooth, architectural finish greatly enhances the kerb appeal of your property, providing a clean, modern look.Protect your extension or garage with a surface built to last. Speak to our West Sussex roofing team on 01689 663319 to discuss your project.

Fully Compliant West Sussex Roofing Installations

Navigating UK building regulations can be a headache for any homeowner, but our experienced team manages the entire compliance process on your behalf. When replacing more than 25% of a flat roof, current Part L building regulations dictate that the roof thermal efficiency must be upgraded to meet modern standards. We specialise in installing warm roof systems alongside our GRP fibreglass roofing, incorporating high-performance rigid insulation boards directly into the roof structure.This not only ensures your East Grinstead home remains fully compliant with local authority requirements but also significantly reduces your energy bills by preventing heat loss through the roof. We understand the specific architectural nuances of properties across West Sussex, from historic homes requiring careful conservation area considerations to modern new builds. By using strictly approved materials like premium resins and topcoats, we ensure your new roof will pass any building control inspection with flying colours.We also guarantee adequate ventilation and the correct installation of breather membranes where necessary, preventing condensation build-up within the roof void. Every project is carried out with stringent health and safety protocols, protecting both our staff and your family throughout the installation.

Trusted Flat Roofing Specialists Across Mid Sussex

While we operate across a wide 20-mile radius spanning South East London and Kent, East Grinstead and the surrounding Mid Sussex communities are key service areas for our flat roofing teams. Whether you need an emergency roof repair in Felbridge, a brand-new garage roof in Ashurst Wood, or a complete commercial flat roof replacement in Crawley Down, we provide a prompt, reliable service tailored to your specific location.Because we manage all our own staff and do not rely on unknown subcontractors, we can maintain strict quality control on every single job, no matter where you are based in West Sussex. We know the local area, we understand the common weather challenges properties face here, and we know exactly how to protect them. We offer fast response times for site visits, ensuring your roofing issues are assessed and resolved before minor water ingress becomes a major structural problem.

25 Years of Trusted Local Roofing Experience

When you hire a roofing contractor, you need to know that your property is in safe, capable hands. Kevington Roofing and Building LTD is a fully registered UK company (No: 12676001) with over 25 years of hands-on industry experience. We have built our reputation on honesty, exceptional craftsmanship, and unparalleled customer service. We do not believe in hidden costs or pushy sales tactics; instead, we provide fully transparent, itemised quotes so you know exactly what you are paying for from day one.Every member of our team is directly employed, fully trained, and covered by comprehensive public liability insurance. This means you are completely protected from the moment we step onto your property. Whether we are laying a new cold-applied roofing system, fitting dry-verge caps, or simply clearing a blocked gutter, our commitment to excellence remains the same. We take great pride in leaving every site clean, tidy, and secure.

Why Choose Kevington Roofing and Building LTD?

Your trusted, fully insured roofing specialists delivering durable GRP fibreglass flat roofs across Swanley, Sevenoaks, Croydon, and Kent.

Local Kent & London Experts

Based in Orpington, we have a deep understanding of local building requirements, proudly serving a 20-mile radius including Swanley and Sevenoaks.

25 Years of Expertise

With over two decades of hands-on experience, our directly employed team ensures flawless GRP installations. We never use unknown subcontractors.

Premium GRP Fibreglass

We install high-grade, cold-applied liquid membranes engineered to withstand the harshest UK weather, providing a seamless, waterproof finish.

Transparent, Itemised Quotes

As a fully insured, registered UK company (No: 12676001), we provide detailed, no-obligation quotes with absolutely no hidden fees.

Newly installed flat felt roof with guttering

What Should You Know About GRP Roofing?

Can GRP be laid over my existing felt roof?No, it is highly recommended to strip the old felt away completely. Laying fibreglass over old, potentially damp felt can trap moisture, leading to rot in the timber joists and preventing the new resin from bonding correctly. We always install a fresh, dry timber deck to guarantee a flawless finish.How much does a new flat roof installation cost in Sussex?The cost varies depending on the size of the roof, the amount of structural repair needed, and whether insulation upgrades are required to meet modern building regulations. However, we always provide a free, detailed, no-obligation quote before any work begins, ensuring complete transparency.Is a fibreglass roof safe to walk on?Yes, standard GRP roofing is durable enough to withstand occasional foot traffic for routine maintenance tasks like window cleaning. If you plan to use the area regularly as a balcony or terrace, we can apply a heavier-grade fibreglass matting and an anti-slip topcoat finish to ensure maximum safety and durability.

Call Now for a Free Quote

Roofing Services Across Croydon & South London: 01689 663319

Grp Fibreglass Roofing in East Grinstead And Surrounding Areas

We Cover All of West Sussex

What Our Clients Say About Kevington Roofing and Building LTD

"Fantastic service from the team at Kevington Roofing and Building today. They were recommended by a friend and I was very impressed. I’ll be using them again."

Celia Bennett

"Reliable and prompt - the Kevington team was able to view the property and provide options and transparent, itemised quotes on the same day I called. After deciding what level of work I wanted done, they returned soon after to carry out the roof repairs to a high standard without me even needing to be there."

Philip Day

"Highly recommended! Great price! First class job. Nothing was too much for these lads, very polite, got the job done and more. When they had finished they cleaned up that well, even took some of my own rubbish away for me. Well done lads! Not often you get a good, honest local roofer anymore! Thanks again."

Nick Mangnall

GRP Fibreglass FAQs

Frequently Asked Questions About GRP Flat Roofing

Got questions about upgrading or repairing your flat roof? Kevington Roofing and Building LTD provides expert answers on our durable, cold-applied liquid membrane systems for homes across Croydon & South London, Swanley, Sevenoaks, and Kent.

How much does a new GRP fibreglass roof cost in Swanley?

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The cost of a fibreglass roof replacement in Kent depends on the size of the area and the condition of the underlying timbers. Generally, while the initial cost is slightly higher than felt, the fact that it lasts twice as long makes it the most cost-effective flat roof installation in the long run. We provide free, itemised quotes so you can see exactly where your money is going.

Can a GRP roof be installed in any weather?

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Fibreglass needs dry conditions to cure correctly. While we can work throughout the year in Swanley, we carefully monitor the weather. We will never start a resin application if rain is forecast, as this would compromise the waterproof seal. Our team uses temporary coverings to keep your home dry at all times during the process.

Is GRP roofing noisy when it rains?

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This is a common myth. When installed correctly with high-quality OSB3 decking and proper insulation, a GRP roof is no noisier than any other roofing material. In fact, many homeowners find it quieter than old thin felt roofs because of the solid timber base we install underneath the laminate.

How long will the installation take?

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Most domestic flat roofs in Swanley, such as a standard garage or kitchen extension, can be completed in one to two days. We aim to work efficiently to minimise disruption to your daily routine, and we always make sure the site is safe and secure at the end of each day.

Still have questions? Contact our Croydon & South London Roofing experts today!

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Proudly Serving Orpington, Bromley, Kent & South East London

Kevington Roofing and Building LTD are your trusted local roofing experts, bringing over 25 years of hands-on experience to properties across South East London and Kent. Based in Orpington, we cover a 20-mile radius, providing fully insured, compliant, and reliable roofing solutions. Explore our primary service areas below.

Our Key Service Areas

Bromley & Bexley

  • Bromley: Orpington, Beckenham, Chislehurst, West Wickham, Biggin Hill
  • Bexley: Bexleyheath, Sidcup, Welling, Erith, Crayford
  • Emergency roof repairs across both boroughs

Kent, Croydon & Beyond

  • Kent: Sevenoaks, Dartford, Westerham, Swanley, Longfield
  • Croydon: Purley, Coulsdon, Sanderstead
  • Greenwich & Lewisham: Eltham, Blackheath, Catford
  • Covering a 20-mile radius from Orpington

Your Trusted Local Experts

  • Expertise with 1930s semis & Victorian terraces
  • Compliant with UK building control & local rules
  • Directly employed staff—no unknown subcontractors
  • Over 25 years of proven industry experience

Need Roofing Services?

Contact Kevington Roofing and Building LTD today for a transparent, no-obligation quote or fast response call-out across Kent and South London.

Call Us Today

If your specific location in South East London or Kent isn't listed, please don't hesitate to get in touch! We cover a wide 20-mile radius from our Orpington base.

Our South East London & Kent Coverage

Map shows our primary service areas across Orpington, Bromley, Kent, and South London.

Get a Free Quote for Your GRP Fibreglass Flat Roof Today!
Call Croydon & South London's Trusted Roofing Specialists on 01689 663319