About
Founded in 1979, Firma John is a private headquartered in Ludwigsfelde, Germany with approximately 10-50 employees specializing in Solar.
JOHN GmbH is a master craft plumbing and mechanical systems company founded in 1979 in Ludwigsfelde, Germany. The company offers comprehensive services in sanitation, heating, climate control, ventilation, water, gas, and solar installations. Services span new construction, renovations, and maintenance. Currently led by sons Paul Band and Patrick Deus since 2025. The company maintains partnerships with Bosch and Viessmann and is a member of the Fachverband SHK Land Brandenburg trade association.
Headquarters
Ludwigsfelde, Germany
Founded
1979
Employees
10-50
Company Type
Private
Business Models
Value Chain
Industry Memberships
Fachverband Sanitär Heizung Klempner Klima Land Brandenburg, Innung SHK Berlin