Supplying windows and doors that surpass Building Regulations

Security and energy approved by the appropriate third party bodies

Throughout our 25 year history working in the construction industry, we’ve become accustomed with the best steps to take to aid architects design buildings to code. From the police approved Secured by Design safety standards to PAS23 and 24 accreditation, we can recommend the appropriate window and door systems that fall under the necessary legislation to help architects have an easier time.

Dependable turnaround times and product quality

Every project brings with it its unique obstacles, be it during the design or specification stage. GJB Window System’s ambition is to aid architects with reducing these troubles, providing a smooth and high quality trade supply service that will leave your clients impressed at the finished result. With developments of any scale, you can entrust us nullify some of the usual worries when designing a structures and buildings.

Get in touch
RaumTimeless CollectionEurocellResidence CollectionMake it yoursSheerline

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

Get In Touch

Find out more about our products

Head Office

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

Find us on Google Maps


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

Facilities: Collections

Enter your details & a GJB Professional will be in touch

By submitting your details you confirm that you agree to the storing and processing of your personal data by GJB Developments Ltd as described in the privacy statement.