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

Expert GRP Fibreglass Roofing in the City of London


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01689 663319
Serving City Of London & City of London

Our Process for Installing Fibreglass Flat Roofs

A successful flat roof installation requires meticulous preparation and technical expertise. As trusted City of London roofing contractors, we follow a strict, proven process to ensure your new roof performs flawlessly.Comprehensive Drone Survey: We begin with a safe, detailed drone roof inspection to assess the condition of your existing deck and identify any underlying structural issues.Decking Preparation: We strip away the old, failing materials and install high-quality OSB3 decking boards, which provide the essential solid foundation for the fibreglass.Laminating the Resin: We apply a specially formulated base resin layer, seamlessly integrating fibreglass matting to form a tough, watertight barrier with no weak joints or seams.Protective Topcoat: Finally, a UV-resistant, fire-retardant topcoat is applied. This hardwearing finish seals the roof entirely and can be customised in various colours, most commonly a smart, lead-grey finish.Ready to upgrade your property? Call our experienced team on 01689 663319 for a transparent, itemised quote.

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 Glass Reinforced Plastic (GRP) Roof?

Upgrading to a fibreglass flat roof offers significant advantages, particularly for properties facing exposure to heavy rain and standing water. Unlike older systems that degrade and blister over time, GRP provides unmatched reliability.Completely Seamless Finish: Because the system is laminated into a single, continuous layer, there are no joints, seams, or weak points for water to penetrate.Extreme Durability: GRP is impact-resistant, making it tough enough to handle foot traffic. This makes it an ideal choice for balconies, roof terraces, and walkways.Maintenance-Free Longevity: A properly installed GRP roof will easily outlast traditional felt, often performing perfectly for 30 years or more with zero routine maintenance required.Enhanced Kerb Appeal: The sleek, modern finish dramatically improves the exterior appearance of extensions, porches, and garages.

Safe, Cold-Applied Roofing for City Properties

Working within the City of London often involves navigating dense housing, strict building regulations, and occasionally, conservation area guidelines. Kevington Roofing and Building LTD handles this red tape safely and professionally on your behalf.One of the greatest benefits of GRP fibreglass roofing is that it is entirely cold-applied. This means the installation process requires no heat, gas torches, or naked flames, completely removing the fire risks associated with older felt installations. Furthermore, we always ensure that your new flat roof complies with current UK building regulations, including upgrading your thermal efficiency with modern warm deck insulation where required. This not only keeps your property compliant but helps lower your winter heating bills.

Trusted Roofing Contractors Across London and Kent

While we are highly experienced at installing waterproof roofing in the City of London, Kevington Roofing and Building LTD is based in Orpington and proudly serves a 20-mile radius across South East London and Kent.Whether you require a comprehensive roof-leak detection service in Greenwich or Lewisham, an emergency roof repair in Bromley or Croydon, or a brand-new flat roof installation in Bexley or Dartford, our local experts are ready to respond. We also frequently work with residential and commercial clients across Sevenoaks and the wider Kent area, delivering the same exacting standards of craftsmanship to properties ranging from modern new-builds to heritage homes.

25 Years of Experience You Can Trust

Choosing the right roofing contractor is vital for the long-term security of your home. Kevington Roofing and Building LTD is a fully registered UK company (No: 12676001), offering complete peace of mind through our comprehensive public liability insurance and rigorous safety standards.We pride ourselves on honest communication and technical excellence. You will receive a transparent, no-obligation quote that clearly itemises the work required, with absolutely no hidden costs. Because we directly employ our entire team, we maintain strict quality control over every fibreglass flat roof we install. When you choose us, you are choosing decades of local expertise and a genuine commitment to customer satisfaction.

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

Frequently Asked Questions About GRP Roofing

Is a GRP roof suitable for a balcony?Yes, absolutely. Because glass reinforced plastic is highly impact-resistant, it can easily support regular foot traffic, making it the perfect waterproof membrane for roof terraces and balconies.How does fibreglass compare to EPDM rubber?Both are exceptional flat roofing materials. GRP provides a harder, more rigid finish that is great for foot traffic, whereas EPDM is highly flexible and excellent for large, simple flat spaces. Our team can assess your specific property and recommend the best solution.Do you carry out emergency flat roof repairs?Yes, if you are experiencing sudden water ingress, we provide fast-response emergency call-outs. While a full GRP installation requires dry conditions, we can secure your property and prevent further internal damage until a permanent replacement can be scheduled.Related Services: EPDM Rubber Roofing | Drone Roof Surveys | New Roof Installations

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Roofing Services Across Croydon & South London: 01689 663319

Grp Fibreglass Roofing in City Of London And Surrounding Areas

We Cover All of City of London

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