New showroom opens at the Colourchange UPVC showroom in Rendlesham. Unit D4, Base Park, Rendlesham, IP12 2TW. The old Bentwaters airfield. We are delighted to have two installations and furniture at Colourchange UPVC, they are specialists in coloured windows, doors and conservatories. Colourchange have a large showroom area and team up with various businesses that supply products for the home and garden, like Resin Master who create resin and concrete drives. The show area is increasing in size and we are the first to develop there.