Established in 1979, GRM Windows has grown to become one of South Wales most experienced and trusted manufacturers of quality PVCu Windows, Doors, Panels and Conservatories to both trade and homeowners alike.
The GRM Promise
Providing a customer focused and flexible approach to design
Utilizing our knowledge and experience to develop the highest quality windows and doors
Supporting both trade and homeowners to deliver the best possible installation service
If you would like to find out more about any of our products or services please do not hesitate to get in touch.
We'd be happy to provide you with a quote and discus your needs in greater detail.