Quality PVC-U window, door and curtain walling systems for the commercial sector.

Bespoke exterior festival lighting systems, guaranteed to bring sparkle to your street!

Windows, Doors and so much more ...


Quality and Service - without compromise

Our People

Our Factory

Quality Manufacturing

Our Supply Partners

ISG is proud to use commercial activities to generate opportunities for local, long-term unemployed people with disabilities, providing them with work-based skills to increase their employability.

Established in 1997, ISG operates as an independent commercial organisation to survey, manufacture and install PVC-U windows, doors, composite doors and curtain walling within the social housing refurbishment and new build sector.

1999 saw us branch out into festival lighting, supplying Local Authorities throughout the country with bespoke design solutions, in-house motif manufacturing, contract management and an installation service.

Our reputation is built upon an unwavering passion to provide our customers with the highest levels of quality and service – without compromise..

By achieving this, we gain the trust of customers to undertake their work to total satisfaction and, to this day, have never lost a client due to poor performance.