Roofing Services
GRP Fibreglass Flat Roofing in Wembley — 25+ Year Lifespan
Flat roofs have a reputation for being problematic, and older felt-based systems often justify that reputation. But the technology has moved on considerably. GRP (glass reinforced plastic) fibreglass roofing is a modern flat roofing solution that eliminates the weaknesses of traditional systems — no joints, no seams, no weak points where water can get in.
At HighPoint Roofing and Building, we have been installing GRP flat roofs across Wembley, Harrow, Ealing and the wider North West London area for over a decade. With more than 50 years of combined trade experience, we are established GRP flat roof specialists using proven materials from reputable manufacturers to ensure every installation performs as it should — for 25 years or more.
GRP Roofing Wembley
What Is GRP Roofing?
What Is GRP Roofing?
Understanding Glass Reinforced Plastic
GRP stands for glass reinforced plastic, commonly referred to as fibreglass. A GRP roof is constructed by layering chopped strand fibreglass matting with a catalysed resin. When the resin cures, it forms a single, rigid, entirely jointless membrane that is bonded directly to the roof deck.
The result is a roof covering with no joints, laps or mechanical fixings — which means no potential failure points. The surface is finished with a UV-stable topcoat that protects against sunlight degradation and can be specified in a range of colours, though grey is by far the most common.
Benefits of GRP Over Other Flat Roof Systems
GRP vs Felt
Traditional bitumen felt roofs rely on overlapping layers and heat-welded or bonded joints. Over time, these joints can fail, particularly in areas of standing water or UV exposure. Felt roofs typically last 10 to 15 years. GRP has no joints at all, lasts 25 to 30 years and requires almost no maintenance.
GRP vs EPDM Rubber
EPDM is a single-ply rubber membrane that offers good waterproofing and a lifespan of around 20 years. It is mechanically fixed or adhered to the roof deck and typically joined at seams with adhesive or tape. While EPDM is a perfectly viable system, GRP offers a more rigid, walkable surface that is better suited to areas that may need periodic access — such as above a kitchen extension or around roof windows.
Durability and Waterproofing
A properly installed GRP roof is completely waterproof from the moment it cures. There is no bedding-in period and no reliance on sealants or adhesives at joints. The material itself does not degrade in standing water, is resistant to moss and algae growth, and is unaffected by frost and ice.
Our GRP Installation Process
Every GRP roof installation starts with proper preparation of the roof deck. We install or replace the timber decking boards, ensuring they are level, dry and securely fixed. Edge trims and drip details are fitted around the perimeter.
The first layer of catalysed resin is applied to the deck, followed by the fibreglass matting, which is rolled out and carefully embedded into the resin. A second consolidating layer of resin is applied over the matting, and any air pockets are worked out to ensure full saturation. Once the laminate has cured, the UV-stable topcoat is applied to provide the finished surface.
The entire process is typically completed within one to two days for a standard domestic flat roof — a garage, porch or single-storey extension — meaning you have a fully waterproof, finished roof with minimal disruption. For those also planning building extensions, we coordinate the GRP installation as part of the wider project.
Applications for GRP Roofing
GRP is suitable for virtually any flat or low-pitched roof surface. Common applications in Wembley include garage roofs, single-storey rear extensions, kitchen extensions, dormer cheeks and roofs, porch canopies, bay window roofs and balcony surfaces. It is also used on new-build properties and commercial flat roofs. If you are building a new roof installation from scratch, GRP is often the best choice for any flat or low-pitch element.
GRP Roof Maintenance
One of the main advantages of GRP roofing is how little maintenance it requires. There are no joints to reseal, no felt to patch and no rubber membrane to re-adhere. We recommend a visual inspection once or twice a year and occasional clearing of leaves and debris from gutters and outlets. Beyond that, a GRP roof will look after itself for decades.
Roofing & Building Experts
Why Choose HighPoint for GRP Roofs in Wembley?
Established GRP Flat Roof Specialists
With over 50 years of combined trade experience and more than a decade installing GRP roofs across Wembley, Harrow, Ealing and North West London, we know what works and how to get it right first time
Proven Materials from Reputable Manufacturers
We use only high-quality GRP materials from trusted suppliers, ensuring every roof we install delivers the durability and performance it should — for 25 years or more
Complete Preparation and Installation
Every project starts with proper deck preparation. We inspect, replace and level timber before any resin is applied, because a GRP roof is only as good as the surface beneath it
Guaranteed Workmanship
All our GRP roofing installations come with comprehensive guarantees, giving you complete peace of mind about the quality and longevity of your new roof
Transparent, Fixed-Price Quotations
We provide detailed quotations covering all costs, materials and timeframes before any work begins — no hidden extras and no surprises
Minimal Disruption
A standard domestic GRP roof — garage, porch or single-storey extension — is typically completed within one to two days, so you have a fully waterproof, finished roof with minimal inconvenience
Get your free, no-obligation quote today
Ready for a Professional GRP Roof?
Our Process
GRP Roofing Installation Wembley
Step by Step
GRP Roofing Installation Wembley Step by Step
Every GRP roof installation starts with proper preparation of the roof deck. Here is how we ensure every project meets our exacting standards for quality and long-term performance:
Step 1
Survey and Assessment
We begin with a thorough inspection of the existing roof structure, checking for rot, damage or any issues that need addressing before the new GRP system is installed.
Step 2
Deck Preparation
We install or replace the timber decking boards, ensuring they are level, dry and securely fixed to create the perfect foundation for the GRP system.
Step 3
Edge Trims and Drip Details
Specialised GRP trims are fitted around the perimeter and at all detail points to ensure clean edges and effective water management.
Step 4
First Resin and Matting Layer
The first layer of catalysed resin is applied to the deck, followed by the fibreglass matting, which is rolled out and carefully embedded into the resin.
Step 5
Consolidating Layer
A second consolidating layer of resin is applied over the matting, and any air pockets are worked out to ensure full saturation and a strong, reinforced membrane.
Step 6
Curing Period
The laminate is allowed to cure fully, ensuring maximum strength and integrity before proceeding to the final stage.
Step 7
UV-Stable Topcoat
The UV-stable topcoat is applied to provide the finished surface. This protects against sunlight degradation and can be specified in a range of colours, though grey is by far the most common.
Step 8
Quality Check and Handover
We conduct a thorough quality check before presenting your completed GRP roof, complete with all warranty information and maintenance guidance.
Local Roofing Company
Our GRP Roofing Service Areas in Wembley
HighPoint Roofing and Building provides expert GRP roofing services throughout Wembley and surrounding areas. Our local knowledge ensures we can deliver roofing services that address the specific requirements of properties in each area.
North Wembley
- Preston Road
- Sudbury
- Northwick Park
- Kenton
Wembley
- Wembley Park
- Wembley Central
- Alperton
- Tokyngton
Surrounding Areas
- Harrow
- Brent
- Ealing
- Willesden
Our Professional GRP Roofing Services in Wembley
At HighPoint Roofing and Building, we offer comprehensive GRP roofing solutions tailored to meet the specific needs of residential and commercial properties in Wembley. Whether you need a brand new GRP flat roof or a roof replacement for an ageing felt or rubber system, our experienced team delivers exceptional quality workmanship on every project.
New GRP Roof Installation
Our expert installation service provides a complete solution for new GRP roofs in Wembley. We handle every aspect of the process, from initial assessment and deck preparation through to the final topcoat application, ensuring a flawless result that offers maximum protection for 25 years or more.
Our installation process includes:
- Thorough site assessment and inspection of existing structure
- Timber deck installation or replacement, ensuring level and dry boards
- Edge trims and drip details fitted around the perimeter
- Professional application of catalysed resin and fibreglass matting
- Consolidating resin layer with air pockets worked out
- UV-stable topcoat in your choice of colour
GRP Roof Repairs & Maintenance
Even the most durable roofs can occasionally require repairs due to extreme weather, accidental damage, or age-related wear. Our skilled team provides expert repair services for existing GRP roofs, restoring their waterproof integrity and extending their lifespan. For non-GRP systems that need attention, see our dedicated flat roof repairs page.
Our repair services include:
- Comprehensive roof inspection and damage assessment
- Repair of cracks, blisters, or damaged areas
- Resealing of roof edges and details
- Topcoat reapplication where needed
- Preventative maintenance to avoid future issues
Specialist GRP Roofing Solutions
We excel in providing bespoke GRP roofing solutions for complex or unusual roof structures. Our expertise allows us to tackle challenging projects that require careful attention to detail and specialised techniques.
Our specialist services include:
- Complex roof shapes and multiple levels
- Integration with skylights and roof windows
- Balcony and terrace waterproofing
- Green roof substrate preparation
- Heritage building sensitive applications
- Commercial and industrial GRP solutions
Our expert team is ready to provide you with a free, no-obligation quote for your GRP roofing project in Wembley
Ready to Transform Your Wembley Property with a New GRP Roof?
Our expert team is ready to provide you with a free, no-obligation quote for your GRP roofing project in Wembley
Ready to Transform Your Wembley Property with a New GRP Roof?
Our Work
See Our Work In Action
Local Expertise
Roofing and Building Contractors Wembley
Local Roofing & Building Experts in Wembley
At HighPoint Roofing and Building, we’ve proudly served the Wembley community since 2010, delivering reliable, high-quality roofing and building services tailored to local homeowners. With over 20 years of hands-on trade experience, our skilled in-house team understands the unique property styles and building requirements across Wembley, Harrow, Ealing, Brent, and surrounding areas. From roof repairs and replacements to driveways, patios, brickwork, and guttering, we offer complete home improvement solutions backed by a 10-year guarantee.
As trusted local contractors, we combine expert craftsmanship with fast response times, ensuring every project—big or small—is completed with precision, durability, and attention to detail. Whether you need emergency roof repairs after a storm or a full property renovation, HighPoint is your go-to roofing and building company in Wembley.
Why Choose Our Wembley Services?
Choosing the right local contractor is essential for protecting and enhancing your home. At HighPoint Roofing and Building, our Wembley-based team offers a personal service that national companies can’t match. We provide free, no-obligation surveys, giving you clear advice, honest pricing, and fixed written quotes with no hidden costs.
Unlike many competitors, we never use subcontractors—our dedicated in-house specialists handle every job, guaranteeing consistent workmanship and accountability throughout your project. From new roof installations and GRP roofing systems to driveway design, patio installation, and gutter maintenance, our expertise covers every aspect of home improvement. With a reputation for reliability, affordability, and five-star results, we’ve become the leading choice for homeowners across Wembley seeking trusted roofing and building solutions.
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Roofing and Building Experts
Local, Experienced & Qualified Contractors
Emergency Call-out
24/7 emergency roofing repairs in Wembley. Fast response for storm damage, leaks, and urgent building issues. Professional roofers available day and night.
Guaranteed Works
All roofing and building work fully guaranteed. Comprehensive warranties on materials and workmanship. Trust HighPoint for quality-assured services across Wembley and surrounding areas.
20+ Years Experience
Over two decades serving Wembley with expert roofing and building solutions. Experienced craftsmen delivering professional installations, repairs, and renovations you can trust.
5 Star Contractors
Highly-rated roofing and building contractors in Wembley. Exceptional customer reviews, professional service, and superior craftsmanship. Choose HighPoint for proven 5-star quality results.
GRP Roofing FAQs
Frequently Asked Questions About GRP Roofing in Wembley
How long does a GRP roof last?
A properly installed GRP roof has an expected lifespan of 25 to 30 years, and many last considerably longer. The material does not degrade in the way that felt or rubber can over time.
Can GRP be installed over an existing flat roof?
In some cases, yes — provided the existing deck is sound and level. However, we generally recommend stripping back to the timber and starting fresh. This allows us to inspect the deck for rot or damage and ensures the best possible bond between the GRP and the substrate.
Is GRP suitable for a flat roof that is walked on?
GRP provides a solid, rigid surface that can withstand foot traffic. It is a good choice for roofs that may need occasional access — for example, above an extension where upstairs windows overlook the roof area. For roofs with regular foot traffic, a non-slip aggregate finish can be incorporated.
How much does a GRP flat roof cost?
GRP flat roofs vary in cost depending on the size of the area, the condition of the existing deck and any additional work required (such as replacing timber boards). We provide free, detailed quotations for every project. While GRP costs more than felt upfront, its lifespan and near-zero maintenance mean it typically works out far more economical over the life of the roof. For comparison with other flat roof options, or if your flat roof only needs flat roof repairs rather than full replacement, see our roof repairs page.
Get Your Free Quote Today.
Our team of experts are always on hand to answer any questions, provide clear quotes and conduct site surveys. All of these services are free with no obligation – no pushy sales.
For more information feel free to complete our online form or give us a call.
Our comprehensive services include roof repairs, new installations, driveways, patios, brickwork, GRP roofing, guttering, and jet washing – all delivered with unmatched quality and customer satisfaction.
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