GS Windows are a premium manufacturer, supplier and installer of Rehau 70mm Windows, Doors & Conservatories. With over 20 years of experience in this industry we pride ourselves on understanding what the customer wants and delivering. We supply to and install for the domestic, commercial and trade markets and have undertaken work for various local councils and larger organisations such as Pall Europe.


Our Factory based in Gosport, Hampshire utilises all of the latest modern machinery to produce an extremely high quality range of products. Backed with our excellent sales knowledge and after sales support GS Windows can offer you the complete customer service experience.


We are a Fensa registered company. Fensa are the industry standard for replacement Windows and Doors - trusted by consumers and local authorities. We are also members of Fair-Trade and Check a Trade. We encourage our customers to visit these websites to see the feedback our customers have left us, don't just take our word for it!.


We pride ourselves on our after sales services which is why the majority of our work comes from existing customers and recommendations.