About

Window & Door Supplier for Trade & Commercial

Fabricating PVCu and aluminium products in-house for use nationwide


Led by industry veteran Roy Frost, GJB Window Systems have been fabricating and supplying market-leading window and door systems for over 25 years. Unlike our competitors, we prioritise great service, quality, and product choice equally, making it easy for installers and builders nationwide to exceed standards expected by modern customers. From our on-site factory in Essex, we specialise in producing exceptional results.

We fabricate a wide range of comprehensive window and door systems, tailor-making each frame in our factory on a project-by-project basis. This helps give the team here at GJB Window Systems a degree of flexibility not found in most of our competitors, letting us supply to tradesmen working in all kinds of sectors be it domestic or commercial.

Combining quality systems with professional fabrication skill and know-how

A supplier is only as good as the materials they work with. That’s why we’ve handpicked some of the UK construction industry’s most recognisable and respected brands like Residence and Räum, applying our decades worth of manufacturing skill to produce the best results. We are familiar with a wealth of PVCu and aluminium systems, and once becoming a partner, you will also benefit from the full support of one of the most forward thinking and experienced trade suppliers – us.

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Nationwide supply with prompt turnaround times

It doesn’t matter if you’re an installer based in Rotherham, a builder in Newport, or working on a high-rise apartment building in London, GJB Window Systems are able to deliver all PVCu and aluminium products to site, on time, every time. Our Essex-based headquarters means we’re ideally based to send out our dedicated fleet of vehicles to anywhere in the UK. We have strong trade links almost everywhere in the country.

Trade Sector
RaumTimeless CollectionEurocellResidence CollectionMake it yours

Join our network

Becoming a GJB approved installer can help increase sales and improve company reputation

Trade support package

Additional materials and advice for improved sales

Fully Accredited Products

Window and door range that exceeds Building Regulations

Continual innovation

GJB stay at the forefront of innovation with fresh products

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Find out more about our products


Head Office

21 Totman Crescent, Brook Road Industrial Est.,
Rayleigh, Essex, SS6 7UY

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Factory's

6, 21 & 23 Totman Crescent, Brook Road Industrial Est.,
Rayleigh, Essex, SS6 7UY

Facilities: Collections

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