JG Leadworks & Roofing is a trusted roofing specialist serving London and the Home Counties, including Kent, Surrey, West Sussex, and Berkshire. For decades, we have combined traditional craftsmanship with modern roofing innovation, providing solutions that protect homes, safeguard heritage buildings, and support complex public-sector and commercial projects.
Every roof we work on is delivered with compliance, durability, and safety as its foundation. Our clients rely on us not just to fix or install a roof, but to provide lasting assurance: watertight protection, regulatory compliance, and workmanship that will stand the test of time.
Every detail, from a hand-cut slate to a lead valley, is executed with precision.
All work aligns with UK Building Regulations, heritage standards, and manufacturer guidance, guaranteeing safety and warranty protection.
We treat every roof as if it were our own, ensuring clients know their property is in safe hands.
From practical to luxurious options, we cater to all tastes and budgets.
Our expertise lies in balancing traditional craft with modern roofing systems.
On one hand, we are highly skilled in heritage methods—using Welsh slate, handmade clay tiles, and ALM leadwork for conservation-grade restorations. On the other, we are trained and approved in advanced systems including Kemper and Westwood liquid roofing, Supreme and IKO felt systems, Proteus, and Nicholson ventilation solutions.
This blend means we can deliver sensitive work for English Heritage sites while also installing high-performance systems for modern industrial roofs. Whatever the context, we bring the same discipline: compliance, durability, and professional execution.
Lead Roofing & Security-Cleared Specialist
Senior Asphalt & Leadwork Specialist
Lead Roofing & Ventilation Specialist
Felt, Slate & Tiling Specialist
We believe the strength of a roof is only as good as the materials and standards behind it. That’s why we partner with leading suppliers such as:
These partnerships ensure our work is backed by manufacturer-approved warranties, traceable supply chains, and systems tested to UK and EU standards.
Our accreditations include Which Trusted Trader, CITB training certification, and manufacturer approvals from Kemper, Westwood, IKO, and ALM. Together, these prove that every project is safe, compliant, and built for lasting performance.
Over the years, we’ve worked with:
Clients choose us because we combine heritage knowledge, modern systems, certified compliance, and a reputation for reliability. Every project is carried out with meticulous planning, precision execution, and transparent communication.
Complete reroofing. Living in Singapore at the time and T was super responsive and communicative.
Replacement of lead box gutter and new flashing to parapet wall. I had an excellent experience using James and the team. He was very prompt in all aspects of communication and completed a first class job. Really pleased.
James completed some repairs on our roof and replaced some of our pebble dash by the roof as well. He was very thorough and fixed everything. He kept us really informed by taking photos and showing us what he did and keeping us updated. It also went onto our neighbours roof and he did the same fo...
We had a leak in our bedroom and James fixed the roof for us to stop it from leaking. All the work came with a warranty. The work that was carried out was good. James and his team were polite, and did all the work quickly and without too much interruption to our day-to-day lives. Would recommend ...
J G Leadworks have repaired and replaced the roofs and gulleys over our warehouse and workshops which have meant both areas are now watertight
James and team were incredibly responsive to my request to look at a serious leak issue on my flat roof. They did a very thorough investigation and explained in detail the issue and gave a fair quote. They were quick to book in and complete the work and have checked in afterwards a few times to m...
James was quick to respond to the initial contact and was able to work around some time constraints I had. He explained what needed doing clearly and was happy to answer follow up questions. He took pictures to show each stage and I feel confident in the work that was done by James and the team. ...
JG Roofing were very easy to work with. Their quote was sensible and they stuck to that figure. They completed many repairs to my roof including, rebuilding a leaded gutter, reinforcing rotten rafters, rebuilding a long felted gutter and felting parapet walls, resurfacing and felting a flat roof,...
Whether you need urgent repairs, a full re-roof, or heritage-grade craftsmanship, JG Leadworks & Roofing are here to help. Our experienced, accredited team delivers trusted solutions across London and the Home Counties, backed by certified materials and warranty assurance. Book your free survey today and take the first step towards securing a durable, compliant roof that protects your property for years to come.
0808 304 2378