Astraseal offers a complete supply and install service, managing every stage from design and manufacture to installation and handover. Specialists in retrofit projects, we deliver full-service solutions as both subcontractor and principal contractor, ensuring work is completed safely, on time, and to the highest standards. We also support new build developments with efficient, large-scale installations backed by expert project management and in-house manufacturing.
Our ServicesAstraseal operates from a 110,000 sq ft manufacturing facility designed for high-volume window and door production. Everything is made in-house, giving us complete control, consistent quality, and faster delivery for every project. Our advanced site includes a dedicated toughening and laminated glass plant, automated glass unit production lines, a state-of-the-art uPVC manufacturing plant, a dedicated aluminium production line, and a fully automated composite door CNC and assembly line, all working together to ensure precision, efficiency, and exceptional results at scale.
Find Out MoreAs a fully certified and trusted fabricator, Astraseal upholds the highest standards of quality, compliance, and customer service across every project. Our extensive industry accreditations reflect our ongoing commitment to excellence, ensuring every product meets strict performance, safety, and sustainability requirements. From manufacturing and installation to aftercare and support, we operate with complete transparency and professionalism, giving clients confidence in the reliability and integrity of our work.
Find Out MoreWe partner with leading system suppliers REHAU, Smarts, and Eurocell to offer one of the most comprehensive and technically advanced product ranges on the market. Our extensive selection of uPVC and aluminium windows, doors, and glazed products ensures there’s a solution for every project, from social housing and council refurbishments to large-scale new build developments. Designed for durability, performance, and efficiency, each product combines cutting-edge technology with proven reliability. Whatever the specification or scale, Astraseal delivers the right product to meet your project’s exact requirements. Seamlessly manufactured, expertly installed, and built to last.
Our Products
Our extensive selection of uPVC and aluminium products is designed to suit all types of property projects. Explore the full range today.
Trusted by local authorities, housing associations, and property developers nationwide, Astraseal is proud to contribute to projects that define communities and raise industry standards.
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As a fully certified and reliable fabricator, Astraseal upholds the highest standards of quality, compliance, and customer service. Our industry-recognised certifications demonstrate a commitment to excellence at every phase, from materials procurement and precision fabrication to expert installation. With a solid reputation and extensive experience, we are a trusted partner for delivering consistent results, technical expertise, and dependable project execution.
As part of Astraseal’s ongoing commitment to social value, we are proud to partner with the JE3 Foundation to help improve access to life-saving equipment in the communities we serve. For every new client or council we work with, Astraseal will be donating a defibrillator to be installed at a location of their choice, helping to strengthen local emergency response and public safety. Through this initiative, communities at Icknield Walk in Royston and Girton Court in Hitchin now have access to new defibrillators, installed by Settle in partnership with the JE3 Foundation which ensures vital equipment is available where it is needed most.
Read the articlePublic Sector organisations are under increasing pressure to deliver more for less, maximising budgets while maintaining the highest standards of quality, safety, and compliance. Nowhere is this more evident than in large-scale window and door renewal projects, where the choice of delivery partner can make a significant impact on both cost efficiency and project outcomes. Read the article printed in Public Sector Building Magazine – Page 36.
Read the article
Access everything you need to plan and specify with confidence. Our resource hub includes product specifications, technical documentation, and a variety of brochures and guides, all in one place.
View DocumentsOur Commercial Department offers tailored solutions for every project. Simply fill in the form and one of our specialists will contact you to discuss your requirements.
