An Upper Bavarian electrical master business specialising in the installation, maintenance and repair of smoke and heat exhaust systems, alongside rooflights and door hold-open systems. It is a ZVEI-zertifizierter Errichter von Rauchabzugsanlagen and is certified to DIN EN 16763 in accordance with RAL-GZ 591, the service standard for door, gate and window systems, and belongs to the Gütegemeinschaft Rauch- und Wärmeabzugsanlagen. It is registered as an Elektro-Meisterbetrieb with the Munich and Upper Bavaria chamber of crafts.