Approved Contractors for the UK’s Leading Roofing Manufacturers
Based in Cambridge with over 30 years’ combined experience, T&T Roofing Limited are approved contractors for all the leading flat roofing and waterproofing manufacturers. Approved status means our team is trained and vetted to install each system to the manufacturer’s own specification — so the workmanship is signed off to the standard required for the manufacturer’s guarantee.
We take full ownership of everything above the concrete frame, from the waterproofing and insulation through to edge protection, copings and interface details, so there are no grey areas on your roof.
Why approved status matters
When a project specifies a particular system — a Sika Sarnafil membrane, a Radmat hot melt build-up, a Bauder green roof — the manufacturer’s guarantee depends on who installs it. Using an approved contractor protects the guarantee, satisfies the specifier, and removes risk for the main contractor and building owner.
The manufacturers we’re approved for
Bauder
One of Europe’s leading manufacturers of flat roof waterproofing and green roof systems. The range covers bituminous, single ply, cold liquid-applied and reinforced systems, alongside market-leading green, biodiverse and solar (photovoltaic) roof build-ups. T&T Roofing install Bauder systems across commercial, residential and public-sector projects throughout Cambridge and the surrounding area.
Sika
A global building-materials manufacturer, best known in flat roofing for Sika Sarnafil single ply membranes and Sika Liquid Plastics cold liquid-applied systems — specified extensively on commercial, education, healthcare and public-sector buildings. T&T Roofing install Sika systems across commercial, residential and public-sector projects throughout Cambridge and the surrounding area.
Langley
A long-established UK manufacturer best known for high-performance reinforced bitumen membranes, cold liquid-applied waterproofing and complete roof refurbishment systems, backed by long-term insurance-backed guarantees. T&T Roofing install Langley systems across commercial, residential and public-sector projects throughout Cambridge and the surrounding area.
Radmat
A leading British manufacturer of flat roof waterproofing, including PermaQuik hot melt structural waterproofing, reinforced bituminous membranes, cold liquid-applied systems and complete green and blue roof build-ups — widely specified on inverted roofs, podium decks and zero-falls applications. T&T Roofing install Radmat systems across commercial, residential and public-sector projects throughout Cambridge and the surrounding area.
Alumasc
A UK manufacturer supplying a comprehensive range of flat roof waterproofing: hot melt monolithic membranes, reinforced bituminous systems, cold liquid-applied waterproofing and green roof solutions, supported by long-term guarantees. T&T Roofing install Alumasc systems across commercial, residential and public-sector projects throughout Cambridge and the surrounding area.
Danosa
An established European manufacturer of waterproofing and insulation products, including modified bitumen (torch-on) membranes, cold liquid-applied systems, single ply membranes and green roof solutions. T&T Roofing install Danosa systems across commercial, residential and public-sector projects throughout Cambridge and the surrounding area.
Soprema
One of the world’s largest waterproofing manufacturers, offering bituminous membranes, cold liquid-applied (Alsan) systems, single ply membranes and Sopranature green roof build-ups, with extensive technical backing. T&T Roofing install Soprema systems across commercial, residential and public-sector projects throughout Cambridge and the surrounding area.
Widopan
A UK manufacturer specialising in cold-applied liquid waterproofing for flat roofs, balconies, walkways and complex detailing — seamless, fully bonded systems well suited to projects where access, programme or intricate detailing rule out hot works. T&T Roofing install Widopan systems across commercial, residential and public-sector projects throughout Cambridge and the surrounding area.
IKO
A major international manufacturer of flat roofing and waterproofing systems, including reinforced bituminous membranes, IKO Polymeric single ply membranes and IKO Permatec hot melt structural waterproofing. T&T Roofing install IKO systems across commercial, residential and public-sector projects throughout Cambridge and the surrounding area.
Axter
A complete range of waterproofing systems — bituminous membranes, hot melt structural waterproofing, cold liquid-applied systems and green and blue roof build-ups — known for strong technical support and long-term guarantees. T&T Roofing install Axter systems across commercial, residential and public-sector projects throughout Cambridge and the surrounding area.
Projects we deliver
Working with main contractors, developers and building owners on new build and refurbishment:
- New-build commercial and mixed-use roofs
- Roof refurbishment and overlay to extend roof life
- Podium decks, balconies, terraces and zero-falls applications
- Complex detailing, upstands and interface waterproofing
Recent Bauder projects include Carlton Dene and Leven Road (Riverside).
