Astraseal Group

Astraseal Group: uPVC and aluminium fabrication from Wellingborough

Astraseal Group describes itself as one of the largest manufacturers and suppliers of uPVC and aluminium windows, doors and conservatories in the UK. The company was established in 1979 and works from three manufacturing sites with a combined area of 110,000 square feet. Its head office is at Astraseal House on the Finedon Road Industrial Estate in Wellingborough.

The group is organised into five specialist areas: Trade, Commercial, Win-Dor, Fire Doors and Special Projects. Each addresses a different customer profile, from installers and builders to social housing providers and large multi-room developments.

Manufacturing capacity and equipment

All products are fabricated in-house at the 110,000 sq ft factory in Wellingborough. The company states that it produces more than 4,000 frames per week. Recent machinery investment cited on the site includes a Glaston IGU line, a cutting table for laminated glass and an eight-head automated frame welding and cleaning line. Astraseal presents this investment as a way to meet increased demand while maintaining precision and consistency.

Product range and systems partners

Astraseal fabricates using systems from REHAU, Smarts, Eurocell and Kawneer. The catalogue listed on the site covers:

• Windows and doors
• Sliding, patio and bi-fold doors
• Composite doors
• Skylights and roof lanterns
• Conservatory roofing solutions
• Internal door and screen systems
• Commercial entrance solutions
• Fire doors and windows

Colour finishing in-house

An in-house spraying facility allows the full glazing range to be supplied in any colour. The company cites more than 150 RAL colours, woodgrain and metallic foils and dual colour options. Coloured frames are described as resistant to peeling, cracking and fading and are covered by a 10 year quality guarantee.

Trade supply

The trade division operates on a supply-only basis for installers and builders across the UK. Account holders are offered 24 hour quote return times, a dedicated trade account manager, fast lead times and nationwide delivery using the company's own fleet of vehicles.

Commercial contracts and social housing

The commercial department works as a contractor on full-service replacement window and door programmes for social housing and local authorities, as well as large-scale supply and install packages for new build developments. The process runs from survey and manufacture through to installation. According to the company, it installs over 80,000 products a year and has worked on numerous high-profile projects in the UK.

Fire doors and windows

Fire-related products form a distinct area of activity. Astraseal states that it has worked with architects, developers, housing associations and local authorities on a complete process covering enquiry, survey, design, manufacture and installation, with the option of a maintenance contract. Each stage is subject to testing, training programmes and certification.

Win-Dor and domestic glazing

Win-Dor is the group's home improvement arm, established in 1978 and serving Milton Keynes and the surrounding areas. It supplies windows, doors and other glazing solutions in a range of colours, backed by a 10 year guarantee. The company describes more than 45 years of operation in this segment.

Special Projects division

Astraseal has launched a Specialist Projects division for large-scale, multi-room and high-rise fenestration work. The team is made up of CAD technicians, architects, technical fenestration experts, structural engineers, facade specialists and qualified site managers.

Certification and installation

The company states that its products are fully certified with British standards bodies and presents these industry-recognised certifications as evidence of compliance across materials procurement, fabrication and installation. Beyond supply-only work, Astraseal offers a bespoke supply and fit service with on-site survey and installation by its own team, handling both small and large contracts.