Freshly laid OSB flat roof timber decking boards on a residential extension preparing for waterproofing
Seamless GRP Fibreglass Roofing • Slough & Thames Valley

Grp Fibreglass Roofing in Sandhurst

Serving Bracknell Forest & Surrounding Areas

Need Grp Fibreglass Roofing in Sandhurst ?

Thames Valley flat roofing specialists based in Datchet, installing tough, joint-free GRP fibreglass systems and resolving persistent roof leaks across Bracknell Forest. From extension overlays to complete tongue-and-groove deck replacements, we ensure correct falls and seamless weatherproofing.

24/7 Emergency Leak Service Seamless GRP Fibreglass Free Written Quotations
Roofing teams available across Bracknell Forest

Expert GRP Fibreglass Roofing for Sandhurst Homes

High class roofing provides professional GRP fibreglass roofing services for homeowners across Sandhurst and the surrounding 15-mile area. Led by Jimmy Frankham, our local team specialises in the installation of Glass Reinforced Polyester systems, providing a durable, seamless waterproof membrane for flat roofs, dormers, and extensions. We understand the specific needs of residential properties in Sandhurst, offering a modern alternative to traditional roofing methods that often struggle with water ingress or surface pooling.

Seamless grey GRP fibreglass flat roof installation with skylight on a domestic property
Why Choose Us

Why Choose GRP Fibreglass for Your Flat Roof

Glass reinforced polyester, or GRP, is an ideal solution for many flat roofs because it is cold-applied and completely seamless. Unlike traditional mineral felt which relies on bonded joints that can eventually lift or crack, a fibreglass system forms a single, continuous layer that is fully watertight. This material is highly resistant to UV degradation and extreme weather conditions common in the Thames Valley, making it a long-term investment for garages, kitchen extensions, and balcony areas. Because the system is cold-applied, there is no risk of fire during the installation process, ensuring safety for your property.

Seamless, Joint-Free GRP Waterproofing

Structural OSB3 Decking & Fall Correction

Preformed Edge Trims & Lead Wall Flashing

UV-Resistant, Impact-Tough Topcoat Finishes

Building Regulations Part L Thermal Compliance

Serving Slough, Windsor, Maidenhead & Uxbridge

Roofing maintenance and preparation on a residential flat roof extension in Berkshire
100% Seamless GRP Waterproofing
24/7 Emergency Roof Leak Response

Seamless Waterproofing

Cold-applied GRP fibreglass forms an impermeable, joint-free membrane over dormers, garages, and domestic extensions.

Expert Decking & Falls

Fitted to OSB3 tongue-and-groove decking with correct perimeter upstands, eliminating pooling and meeting Part L requirements.

Thames Valley Coverage

Prompt local service across Datchet, Slough, Windsor, Maidenhead, Uxbridge, and surrounding areas within 15 miles.

Roof replacement and structural strip down on a residential extension showing exposed roof timbers and stacked tiles
Freshly laid OSB flat roof timber decking boards on a residential extension preparing for waterproofing
100% Seamless GRP Weatherproofing
Who We Are

How Does GRP Roofing Handle Drainage and Insulation

A frequent issue with older flat roofs in Sandhurst is the tendency for water to pool, which accelerates the decay of the roof deck. Our team ensures that every GRP installation is finished with the correct fall and drainage design to prevent standing water. Furthermore, when replacing an existing roof covering, we strictly adhere to Building Regulations Part L requirements regarding thermal performance. By incorporating modern, high-performance insulation, we help you improve the energy efficiency of your home while simultaneously curing the underlying roofing faults.

Slough & Thames Valley

Available 24/7

Speak With Jimmy Frankham

01256 639416
Seamless grey GRP fibreglass flat roof installation with skylight on a domestic property

What are the Signs Your Flat Roof Needs Replacement

If you notice internal damp patches on your ceilings, sagging roof boards, or if the existing felt surface on your extension has begun to blister and crack, it is time for a professional assessment. We frequently visit properties in Sandhurst where aging roofing materials have reached the end of their service life. Whether your property is a modern build or a post-war semi, our team can determine if a localized repair or a full GRP replacement is the most cost-effective and reliable solution for your specific situation.

Roofing maintenance and preparation on a residential flat roof extension in Berkshire

Areas We Cover

High class roofing: Providing expert roof leak repairs, pitched and flat roofing solutions across Datchet, Slough, Windsor, Maidenhead, Uxbridge, and surrounding areas within a 15-mile radius.

01256 639416

Professional Flat Roof Installation in Sandhurst

At High class roofing, we combine technical expertise with a reliable approach to local trade. Based in Datchet and operating across a 15-mile radius, we bring decades of practical experience to every project. We handle every aspect of the installation, from the initial site survey to the final, clean finish of the fibreglass edge trims and drainage outlets. We pride ourselves on clear communication and honest assessments, ensuring you understand exactly what your property needs to stay watertight and secure. Contact Jimmy Frankham at High class roofing on 01256 639416 to arrange a site survey and detailed quotation for your property.

Grp Fibreglass Roofing in Sandhurst And Surrounding Areas

Local Sandhurst Experts Operating Across All Of Bracknell Forest

Datchet Operating Hub • 15-Mile Service Radius

Our Base & Coverage Area

33 Montrose Avenue, Datchet, Slough, SL3 9NH

Direct to your property: Specialist GRP fibreglass installation and flat roof repairs across Slough, Windsor, Maidenhead, Uxbridge, and all areas within 15 miles of Datchet.
Book an On-Site Survey
Thames Valley Flat Roofing & Leak Repairs

Struggling with a Leaking Flat Roof? Get an Expert GRP Survey in Slough

From persistent standing water on garage extensions to severe storm-damaged mineral felt, Jimmy Frankham provides dependable GRP fibreglass installations and prompt leak repairs across Slough, Windsor, Maidenhead, and Uxbridge.

01256 639416 Free Site Surveys • 24/7 Emergency Weatherproofing
100% Seamless Joint-Free GRP Fibreglass
Part L Aware Thermal Upgrade Guidance
Local Specialist Slough, Windsor & Maidenhead