This website uses cookies to ensure you get the best experience on our website. Learn more

If you are a homeowner, please visit our homeowner site

01623 443200

Product categories

Browse our product categories to explore our extensive offer of window, door and conservatory systems. From the best-selling Global conservatory roof to the market-leading WarmCore warm aluminium windows and doors, our products are designed to offer exceptional performance while offering you ease of fabrication and installation to cater for every project.

Discover our know-how

Across seven UK-based manufacturing sites, our 1400+ team is a network of experts in window, door and conservatory system manufacturing. Incorporating PVC-U and aluminium systems, our very own glass division and an extensive 100+ fleet of vehicles, our mission is to deliver quality products directly to you, on time and in full every time.

Choose your sector

We work directly with the trade to provide quality products for homeowner renovations, large scale commercial contracts and new build housing projects. We’re invested in supporting every stage of the product journey with a team of technical experts on-hand to support fabricators and installers, along with in-house support for advising on product specification requirements for architectural projects.


Latest news & announcements

Find out the latest news from across the Synseal Group including recent product launches, new appointments and company acquisitions.

New WarmCore Fixed Roof Light for the Celsius Solid Roof

Synseal Group has launched a new fixed roof light for their Celsius Solid Roof which uses a stepped glass structure and WarmCore technology maximise light and offer excellent thermal performance. Read more


Masterdor partners with Avant Homes

Avant Homes has chosen the Masterdor Craftsman range of solid, engineered timber doors to make a welcome entrance for homeowners in more than 1000 newly built homes. Read more


Lucky thirteen pass Green Belt exams at Synseal

Thirteen employees from across the Synseal Group have successfully passed their exams as part of the Lean Six Sigma Green Belt manufacturing training. Read more


Our brands

You’ll find fabricators and installers up and down the country using our market-leading brands, including WarmCore, Masterdor, Global and Stratus. With one of the widest product ranges available, we’re certain there’s a brand collection suitable for every project. Find out more about each of our brands, discover new product ranges and download useful information including technical specifications and retail brochures.