Flat Roofing Systems Installed for Performance
Reliable flat roof installations and repairs designed to provide durable, watertight protection.
Professional Flat Roof Installations in Greater London & Surrounding Areas
Flat roofing offers a practical and cost-effective solution for extensions, garages, and commercial properties. Open Valley Roofing Ltd installs high-quality flat roofing systems designed to deliver strong waterproof protection and long-term performance.
From traditional felt roofing to modern GRP fibreglass and membrane systems, each installation is tailored to suit your property and usage requirements. Our team ensures every project is completed to a clean, professional standard.
Our Professional Installation Process
We follow a structured approach to ensure every flat roof is installed to the highest standards of durability and weather resistance.
Roof Inspection & Consultation
We assess your existing roof or structure and provide clear advice on the most suitable flat roofing system.
System Selection & Planning
We guide you through material options including felt, GRP fibreglass, and modern membranes to achieve the best balance of performance and cost.
Professional Installation
Our team prepares the surface correctly, installs insulation where required, and applies waterproof systems using proven techniques.
Final Inspection & Handover
We complete thorough checks to ensure watertight integrity and provide maintenance guidance to help maximise lifespan.
Flat Roofing Systems We Install
We install a range of flat roofing solutions across Greater London and surrounding areas. All work includes full preparation and removal of existing materials where necessary.
Felt Roofing Systems
GRP Fibreglass Roofing
Single-Ply Membrane Systems
Looking to upgrade your flat roof? Contact Open Valley Roofing Ltd today for expert advice and a free quotation.
Built for Long-Term Protection & Performance
A professionally installed flat roof provides dependable protection and long-term value for your property.
Our flat roofing systems:
Protect against leaks and standing water
Provide durable waterproof protection
Require minimal maintenance when installed correctly
Deliver long-term performance in all weather conditions
We use trusted materials combined with professional installation methods to ensure consistent reliability.
This includes:
High-performance felt, GRP fibreglass, and membrane systems
Correct substrate preparation and insulation
Seamless waterproof sealing
Secure edge detailing and drainage planning
Careful finishing around joints, upstands, and roof edges
Every installation is completed with durability and watertight integrity in mind.
Workmanship Guarantee & Quality Assurance
At Open Valley Roofing Ltd, quality and reliability are central to every flat roof installation.
All flat roofing work includes:
A comprehensive workmanship guarantee
Materials backed by manufacturer warranties
Full public liability insurance
Compliance with current building regulations where applicable
We ensure proper drainage planning, safe waste removal, and correct installation techniques to maximise roof lifespan.
You can trust that your flat roof is installed safely, correctly, and to professional standards.
Why Choose Open Valley Roofing Ltd?
Experienced Roofers
Our team has extensive experience installing and replacing flat roofing systems of all sizes.
Quality Materials
We use proven flat roofing systems designed for durability and long-term weather resistance.
Guaranteed Workmanship
Every installation is completed to high standards and built for dependable performance.
Competitive Pricing
Transparent quotations with no hidden costs — just honest pricing and real value.
Customer-Focused Service
We provide straightforward advice and solutions tailored to your property and needs.
Local & Reliable
Providing dependable flat roofing services across Greater London and surrounding areas.