Glasmanufaktur Conzelmann

Experts in glass by tradition

Glas Manufaktur Conzelmann, founded by Silke Conzelmann and Annette Conzelmann, has been manufacturing high-quality Inspection Windows for industrial applications since 2003.

The Conzelmann family can look back on a long tradition of almost 150 years: the Conzelmann glazier's workshop was founded in Tailfingen in 1872. In 1954 it moved to Balingen and developed into a manufacturer of special and insulating glass. In 1978, the grandfather and father of the managing directors started producing individual windows for the environmental test chambers. With founding of "Glasmanufaktur Conzelmann GmbH & Co. KG", this Inspection Windows business segment was taken over. 

As a result, the family business can draw on a wealth of experience in the field of Inspection Windows dating back 40 years.

Today, Glasmanufaktur Conzelmann serves well-known customers worldwide.

We manufacture Inspection Windows for temperature and climatic chambers, cold and deep-freeze rooms as well as special machines individually according to customer requirements - from individual pieces to series production.

We currently deliver more than 4000 units per year all over the world.

For more than 15 years we have been manufacturing high-quality and long-lasting special windows for industrial applications individually according to customer requirements.

  • Individual solutions
  • From individual pieces to series production
  • Worldwide delivery

Qualitätsmanagementsystem nach DIN EN ISO 9001:2015

We use a quality management system certified according to DIN EN ISO 9001:2015.

ISO 9001 Certification (PDF)

Your contact persons

Annette Conzelmann – CEO

Annette Conzelmann

CEO, Technical Customer Care

Phone: +49 (0) 7433  9973-0

Silke Conzelmann – CEO

Silke Conzelmann


Phone: +49 (0) 7433  9973-0

Our Team

Conzelmann Team
Conzelmann Team
Conzelmann Team

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