Tailor made windows and doors for visual inspection and access
The growing requirements for environmental protection and the waste disposal industry demand monitoring and inspection facilities. We offer you tailor made solutions, whether as an inspection door or  as a fixed or  openable sight glass.




  • Solutions for purification plants
  • Solutions for treatment plants
  • Wastewater treatment and filter systems
  • Solutions for air conditioning
  • Ducts and funnels
  • Sight glasses




Freedom to Design…

October 2009 | After months of planning, concept developing and realisation: Our new Flushline Sliding Door is now ready for the market. On www.freedom-to-design.de you get an insight
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Fehrmann at Hannover Messe 2010

April 2010 | For 115 years we have offered tailor-made cast products at highest quality based on ductile, corrosion resistant Al or Cu alloys. We will present them at Hannover Messe 2010 which will take place from April 19th to April 23rd. You will find us in Hall 3, stand B26, at German Foundry group Pavilion "Gegossene Technik".
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