Robert Ian Macdougal

Ventrolla Ltd. engages in the repair and restoration of timber sash and casement windows. It also offers double and single glazed windows, secondary glazing, draught proofing, sash removal system, wooden doors, and bespoke windows. The company was founded by Robert Tunnicliffe in 1982 and is headquartered in Harrogate, the United Kingdom.

Customade Group Trading Ltd. is a holding company that manufactures and distributes trade windows, doors and conservatories. Its products include REAL aluminum, atlas glazed roof solutions, virtuoso doors, and fineline aluminum. The company was founded by Martyn Brian Buckley in 1992 and is headquartered in Stonehouse, the United Kingdom.