The object of Mueller+Co GmbH is the manufacture and trade of building components of all kinds, especially plastic-based windows and doors; furthermore the execution of interior finishing work and the industrial operation of wood processing. The company is described in the management report as a medium-sized company in the window construction industry. The main products are windows and doors, and revenues are generated predominantly from the sale and installation of self-manufactured windows and doors. The most important sales market in fiscal year 2024/25 was the Rhine-Main area as well as the Taunus and the adjacent Wetterau; on average 142 employees (including trainees and management) were employed. Müller & Co GmbH Kunststoff-Fenster, Energiespartechnik is a family business.
Gegenstand des Unternehmens ist die Herstellung von und der Handel mit Bauelementen aller Art, insbesondere von Fenstern und Türen auf Kunststoffbasis; ferner die Ausführung von Innenausbauarbeiten aller Art sowie der industrielle Betrieb der Holzverarbeitung.
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Source: German Commercial Register (Handelsregister) Königstein Local Court, HRB 108077 (as of 7 October 2026)
Source: German Commercial Register (Handelsregister) Königstein Local Court, HRB 108077 (as of 7 October 2026)
Source: German Commercial Register (Handelsregister) Königstein Local Court, HRB 108077 (as of 7 October 2026)
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Source: German Commercial Register (Handelsregister) Königstein Local Court, HRB 108077 (as of 7 October 2026)
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