Experience since 1973
Strong past – bright future
Since its founding, the Alois Müller Group has developed from a traditional family business into an innovative company for energy and building services engineering (heating, ventilation, sanitary, refrigeration, electrical) and for industrial plant engineering.
Only those who make intelligent use of technology and tackle these challenges can hope to stay competitive in future. This requires us to use technical options to optimise the required energy consumption and conserve resources. In the industrialised nations of the West, generating heat for living areas and industrial real estate accounts for the majority of energy consumption – while also offering the greatest potential for savings.
The company was founded in 1973 by Elfriede and Alois Müller and is now in its second generation in management. Steffen and Andreas Müller. Our company is 100% family-owned and owner-managed.
Visit us on-site to get a first-hand look at our range of products and services and our high quality standard.
We would be happy to welcome you to the Green Factory in Ungerhausen, or any other location of ours, at any time!




Relocation of the main site of the Alois Müller corporate group from Memmingen to the Green Factory in Ungerhausen
Integration of HEDISA Haustechnik GmbH, a plumbing and HVAC company in Stuttgart, as a wholly owned subsidiary
Construction of a new location in Friedrichshafen 
Reception of the LEW Innovation Award
pansion of the Service Center at our location in Memmingen with state-of-the-art workstations and a lounge area.
Acquisition of the heating and plumbing company Raith Bad & Wärme in Ottobeuren as a wholly owned subsidiary. A specialist for high-quality baths with an extensive bath exhibit.
art of production for Müller Produktions GmbH in the Green Factory in Ungerhausen near Memmingen. The first CO2-neutral production facility for plumbing, heating and ventilation components.
Integration of ECONTEC MSR GmbH from Buch near Illertissen as a subsidiary.
New construction of the state-of-the-art corporate headquarters in Memmingen
Relocation of the company to Memmingen.
Founding of the heating and plumbing company by Elfriede and Alois Müller in Steinheim, Bavaria.