Astraseal is a fully accredited fabricator, supplier and installer of high performance PVCu and aluminium windows and doors for commercial projects. We can work with you on a range of projects from new-build social housing/residential, to large scale commercial developments including offices, hotels, apartments and retail outlets.


A factory member cutting profile


Astraseal manufactures a full range of glazed products including PVCu and aluminium windows and doors, composite doors, fire doors and curtain walling.

Everything is fabricated in-house at our 110,000 sq ft factory in Wellingborough. We’ve made significant machinery investments including a new Tamglas toughening plant, a Stuga machining centre, a five-headed welder, a bead saw, an aluminium saw and a crimper. This means we can produce a better quality of product, and it has increased our manufacturing capacity to 4,000 frames per week, allowing us to fabricate and install high volumes for large-scale building contracts.


We offer a complete range of systems suitable for the commercial market and can supply these for all kinds of projects in the residential, commercial, retail and leisure markets. We mainly operate around London and the Midlands/South regions, but we can work on a national basis if needed.

Products are delivered through our 80 strong fleet of vehicles, and we recently added an additional 12 ton and 18 ton lorry to further increase capacity. We meticulously plan journeys and use large vehicles for deliveries to reduce short trips and our carbon emissions. All of our drivers are employed directly by Astraseal and have undergone health and safety training.


An Astraseal installer abseiling to install am aluminium windowAstraseal products are installed by our highly experienced installation team who have installed products in numerous high-profile projects across the UK. We install over 80,000 products each year and can work on both small and large scale contracts to complete your project ideals.

Like our drivers, all of our installers are employed directly by Astraseal and have been through the appropriate training to install products to the high standard our customers expect, in accordance with the latest Building Regulations and health and safety requirements.

Astraseal has an excellent track record for on-time project completion. Some examples of our previous work can be found on our projects page.