Diehl GmbH plans, constructs, maintains and operates comprehensive building services systems including heating, ventilation, air conditioning, refrigeration, sanitary, electrical and MSR technology as well as pool technology, and trades spare parts for these systems. The company is headquartered in Baumholder and operates branches in Erfurt and Kaiserslautern as well as sites in Trier and Wiesbaden. Since August 2024 Diehl GmbH has been part of Apleona Wolfferts GmbH, and the MSR and Service areas are run as independent departments. Customers include industry, the public sector, investors in commercial and administrative construction, private customers and developers; the workforce in 2024 was 273 employees including apprentices and an average of 243 employees.
Die Planung, Errichtung, Herstellung und Wartung ganzheitlicher gebäudetechnischer Anlagen und Laboratorien, insbesondere sanitärer lnstallations-, Heizungs-, Lüftungs-, Klima- und Kälteanlagen oder Anlagen anderer Gewerke der Gebäude- und Versorgungstechnik inklusive im Bereich der Elektrotechnik sowie der Mess-, Steuerungs- und Regeltechnik sowie Schwimmbadtechnik, und deren Service und lnstandhaltung sowie der Handel mit Ersatzteilen für diese Anlagen.
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Source: German Commercial Register (Handelsregister) Bad Kreuznach Local Court, HRB 10144 (as of 7 October 2026)
Source: German Commercial Register (Handelsregister) Bad Kreuznach Local Court, HRB 10144 (as of 7 October 2026)
Source: German Commercial Register (Handelsregister) Bad Kreuznach Local Court, HRB 10144 (as of 7 October 2026)
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Source: German Commercial Register (Handelsregister) Bad Kreuznach Local Court, HRB 10144 (as of 7 October 2026)
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