Heinz Arnhold GmbH, based in Dortmund, has specialized in windows and front doors since 1948 and is one of the region's leading manufacturers in this segment. Its customer base includes independent installation companies, private customers, property managers and housing companies. In fiscal year 2024 the company strategically withdrew from the business areas “assembly of building elements” and the “manufacture and distribution of aluminium building elements” at year-end. Going forward the company will focus exclusively on supplying specialist building‑elements wholesalers with prefabricated plastic building elements. Heinz Arnhold Gesellschaft mit beschränkter Haftung is a family business.
die Herstellung und der Vertrieb von Holz-, Kunststoff- sowie Aluminium-Bauelementen, insbesondere die Fertigung von Fenstern und Türen im individuellen Wohnungsbau sowie im gewerblichen Bereich.
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Source: German Commercial Register (Handelsregister) Dortmund Local Court, HRB 2517 (as of 21 September 2026)
Source: German Commercial Register (Handelsregister) Dortmund Local Court, HRB 2517 (as of 21 September 2026)
Source: German Commercial Register (Handelsregister) Dortmund Local Court, HRB 2517 (as of 21 September 2026)
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Source: German Commercial Register (Handelsregister) Dortmund Local Court, HRB 2517 (as of 21 September 2026)
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