Specialist Flat Roofing Contractors Serving London & the Home Counties

Build Hub are accredited flat roofing specialists in London, providing high-performance roofing solutions throughout London, Buckinghamshire, Windsor, Eton, and the Home Counties. As proud members of the National Federation of Roofing Contractors (NFRC) and approved contractors for RENOLIT Alkorplan roofing systems, our reputation is built on quality, safety, and innovation.

All our operatives are fully trained in the latest flat roofing techniques and compliant with RENOLIT's manufacturer specifications for membrane installation, ensuring every customer receives energy-efficient, robust, and long-lasting results.

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rooftop view with a flat gray surface overlooking greenery and surrounding buildings featuring construction elements near the edge with a clear sky highlighting the modern architectural style ideal for 11 themed projects

 NFRC logo featuring the text Leading Roofing Excellence with a red arrow symbol representing guidance in roof standards for 6 key elements of quality

 We Are NFRC Approved

Why Use an NFRC Member​

 

 

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Our Flat Roofing Systems & Services

We offer a complete range of flat roofing services in London and the surrounding Home Counties, all carried out by our in-house team of qualified professionals.

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Single Ply Membrane Roofing (RENOLIT)

Our single ply flat roofing systems use premium RENOLIT membranes, designed for lightweight durability and superior waterproofing. Energy-efficient and resistant to UV and root ingress, these membranes are perfect for residential extensions or larger commercial projects. We install these systems strictly to RENOLIT specifications, and every installation can be supported with a full manufacturer-backed warranty.

Our expertise also includes the installation of Renolit Alkorbright systems for enhanced solar reflectivity and thermal performance.

Tapered Insulation Roofing Systems

To ensure optimal drainage and prevent ponding, we install tailored tapered insulation systems engineered to each structure. These not only channel rainwater towards outlets, safeguarding your building, but also boost your property's thermal efficiency.

Our design-led approach makes each flat roofing installation highly effective and built to high standards for energy savings all year round.
 

solar panels on a green rooftop with lush vegetation and residential buildings in the background showcasing sustainable energy solutions for a cleaner future 9 benefits of solar energy

Roof Refurbishment

We revamp existing flat roofs by repairing damaged areas, upgrading insulation, and installing new RENOLIT membranes where needed.

Our roof refurbishment service quickly restores waterproofing, improves energy efficiency, and extends roof lifespan, all with minimal disruption and a full workmanship guarantee.
 

roof with skylight featuring three glass panes against a slate surface showcasing natural light and roof design elements for a seven style aesthetic

Green Roof Installation

As part of our specialist flat roofing services, we design and build green roofs, ranging from extensive sedum systems to biodiverse habitats for local wildlife.

A green roof from Build Hub acts as a natural insulator, protecting your membranes and reducing heating costs, while enhancing biodiversity and overall attractiveness. Every green roof is planned for efficient drainage and irrigation, maximising lifespan and environmental benefits.

 If you're seeking the best Renolit Roofing in London or the nearby region, Build Hub brings experience and technical excellence to every project.

 

 

 

 

 

Flat Roofing Built for Longevity, Efficiency, and Performance

At Build Hub, we design, supply, and install flat roofing systems crafted for reliability and outstanding building performance. Whether you need a complete flat roof installation on a new build or a specialist refurbishment on your existing property, our expertise guarantees you the very best workmanship. Our service combines structural waterproofing, advanced insulation, and cutting-edge materials, from RENOLIT Alkorplan to the highly reflective Renolit Alkorbright membrane, delivering roofs that are sustainable, watertight, and low-maintenance.

As principle contractors in London, we handle commercial, residential, and industrial projects across the region, working closely with clients to meet the highest standards. Our focus on Renolit Roofing in London gives every project our personal attention, with clear communication, meticulous contract management, and aftercare support built in. You can trust Build Hub to protect your property for years to come.

 

 

 

 

 

Who We Work With

Our flat roofing expertise makes us the partner of choice for a diverse range of clients in London and across the Home Counties:

rooftop view featuring solar panels and slate roofing detail showing four distinct sections for optimal water drainage and energy efficiency

Homeowners & Architects

We work directly with those looking for modern, energy-efficient flat roofs or sustainable green roofing systems, offering full design support and personal service from start to finish.​

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Main Contractors & Builders

Build Hub is a reliable sub-contractor for envelope packages or standalone flat roof installations, always delivering on programme and to spec.

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Developers

We supply and install complete flat roof packages, including all insulation, drainage, and waterproofing design, ideal for new-build and refurbishment projects alike.

 

Our commitment to quality, technical skill, and transparent communication means every client can be confident in a durable, weatherproof roof that stands the test of time.

 

 

 

 

 

Roofing Process: Flat Roofs Delivered with Structure and Confidence

We follow a proven process for every Renolit roofing project in London, keeping you informed at every stage:

Initial Site Visit & Roof Assessment

Our experts visit your site to measure, assess the structure, check existing drainage, and discuss thermal targets.

Design & Specification

We plan the ideal system, selecting the right insulation, membrane, and installation approach for your roof type.

Quotation & Scheduling

Receive a clear, fixed-price proposal with a reliable project timeline.

Installation

All works are carried out by our trained Build Hub team, strictly following RENOLIT manufacturer standards and building regulations.

Inspection & Sign-Off

The finished flat roof is inspected, and you receive warranty documents for absolute peace of mind.

From initial design to final sign-off, Build Hub delivers complete project management and expert workmanship for every flat roofing installation.

 

 

 

 

Frequently Asked Questions

Why choose an NFRC approved contractor for flat roofing?

NFRC approved contractors are vetted for workmanship, business practices, insurance, and adherence to strict codes of practice, ensuring reliable, high-quality flat roofing.

What are the benefits of hiring Build Hub as an NFRC member?

Build Hub’s NFRC membership means independent auditing, regular site inspections, proven trading history, and adherence to stringent health and safety standards.

How does Build Hub ensure compliance with safety and industry regulations?

We comply with all Health and Safety Legislation, robustly assess project risks, and strictly follow CDM 2015 regulations, passing client responsibilities to us.

What roofing guarantees do Build Hub provide?

We supply full manufacturer-backed warranties for all RENOLIT membrane roofs and guarantee our workmanship, covered by appropriate insurance for peace of mind.

What if there’s a dispute with my roofing project?

The NFRC offers a free dispute resolution service for clients, and the NFRC team is available to help resolve issues quickly and fairly.

How can I confirm Build Hub’s NFRC membership?

You can verify Build Hub’s NFRC membership on the nfrc.co.uk website or contact the NFRC helpline for confirmation.

How do I select and work successfully with an NFRC member?

Gather multiple quotes, check project references, verify up-to-date NFRC membership, and discuss the contractor’s experience before committing to a flat roofing project.

Does Build Hub assess risks before starting flat roofing works?

Yes, we thoroughly assess, communicate, and minimise risks before commencing any roofing work, ensuring safety for clients, buildings, and the public.