Steen Overgaard Sørensen

WindowMaster AG supplies indoor climate solutions through natural ventilation for all types of buildings. Its products include smoke ventilation, national and hybrid ventilation, window actuators, cables, spare parts, and discontinued products. The company is headquartered in Trimbach, Switzerland.

Part of WindowMaster International A/S, WindowMaster Control Systems Ltd. is a British company founded in 1999 that helps the construction industry meet their sustainability goals through natural ventilation and facade automation. The company is based in Kettering, UK. The company has Installer & Service partners all over the world to help implement and maintain their solutions. The company also offers an Environmental Product Declaration (EPD) to transparently document the environmental performance or impact of their building products over their lifetime. The company also offers a Building Simulation (BSim) program developed and maintained by the Danish Building Research Institute (SBi) to help with natural ventilation.