Windows

Exclusively fabricating frames engineered in uPVC and aluminium, GJB Window Systems offer trade partners an extensive range of configurations and styles, all easy to fit with prompt turnaround times. Designed in accordance with existing Building Regulations, we manufacture every window from our in-house factory to your exact specification. This results in windows set to impress your customer base when used in any application.

Whether you’re looking for tilt & turn aluminium windows intended for use within a contemporary high-rise complex or something a little more authentic for a domestic rural cottage, our selection has every base covered.

Get a quote

Request a quote




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.


High performance windows

Manufactured using the best PVCu and aluminium systems


We pour our 25 years of industry knowledge and experience into every window frame that leaves our Essex factory, guaranteeing tradesmen a level of quality they won’t find anywhere else. Working with reputable systems companies like Residence, Eurocell, and Raum, your product portfolio will be all the better for adding GJB’s exceptionally produced windows.

PVC Windows

Flexible, low-maintenance, and highly insulating, our range of PVC windows capitalise on all the modern benefits expected, albeit with some appreciated subtle extras that take them from good to great.

Aluminium Windows

All our aluminium windows come engineered in stylish and insulating RAUM system profiles, perfectly balancing contemporary aesthetic, function, and performance all in one neat package. Ideal for contemporary homes and commercial project developments.

Timber Effect Windows

An essential for installers working in the conservation market as well as rural area, Residence collection windows replicate 19th century timber aesthetics to an incredible degree. They improve on their wooden counterpart with improved insulating and better weather resistance.

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

Factory's

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.