GLS Windows
At GLS we’re passionate about quality, about delivering a brilliant, personal service to each and every one of our customers, and providing breathtakingly beautiful windows, doors, conservatories and more. Through over 40 years industry experience, our team are experts in the design, manufacture and installation of a huge range of glazing and roofing products.

We’re proud to be able to say that all our products are manufactured in house at our premises in Cosby, where we utilise the latest technology to bring you the most aesthetically pleasing,

innovative and energy efficient window solutions available today. Our fitting team, fully certified, qualified and affiliated with Fensa, deliver an unrivalled level of customer care, and quality in their workmanship. They’re clean, friendly and efficient, able to carry out work in your home quickly, and with minimal disruption to you, before loading out and leaving you with a beautiful new installation.