Get in touch

Contact our professional team today to discuss your project requirements

Get in touch
Discover our wide range of quality double glazed windows and doors and get a free, no-obligation quote!


GB Windows is run by Tim Bower who has 35 years experience in the double glazing market. GB Windows have completed installations throughout Buckinghamshire, Berkshire, Oxfordshire and West London, to numerous satisfied customers.

Our dedicated and friendly staff is always on hand to help and advise you, taking you through the sometimes difficult process of making your home look the best it can. We pride ourselves in both our customer relations and great customer satisfaction.

We are based in High Wycombe at 461 London Road, Wycombe Marsh (opposite Costcutters) where we have a showroom displaying our products (opening times Mon – Fri 7:30am till 4pm, Weekends by appointment).

We like to maintain old fashioned values whilst offering you the most up to date products and services. Our professional craftsman’s approach to all our installations means that a large proportion of our business comes from recommendations or add ons from existing customers. We believe that our future lies in your hands, that is why we offer you a complete package, approaching all jobs from your point of view ensuring complete customer satisfaction from start to finish.


All of our installations are covered by a 10 year insurance backed guarantee, which is issued by the Consumer Protection Association (Membership No. 1443). As a CPA member you can be assured that we have met their strict criteria, provide a professional, reliable and ethical product and service, and have proved that we have the ability to produce the highest quality of work.

We are Certass registered (No. 001993) in accordance with building requirement “Part L” being a government approved regulatory body, allowing us to self certificate all our installations through building control. Since April 2002 it has been a legal requirement that all domestic replacement window and/or door installations are registered with Local Authority Building Control.

On this site you will be able to view all of our products we install with details and images to help you select the right product for your home.


10 years guarantee for added peace of mind

Free, no-obligation quotes

Over 50 years experience