Andreas Stehling

Supply technology engineering graduate
Managing Director and Dept. Head technical plant and equipment

Andreas Stehling

Andreas Stehling is a Managing Director at CANZLER GmbH with the right to sole representation of the company and is head of the Mülheim office.

In this capacity he also heads the technical plant and equipment department for the sanitation, media, fire-fighting and HVAC technology trades. As project leader, Mr. Stehling is responsible for overall specialist and human resources coordination. His tasks include quality management, due diligence, and participation in competitions for PPP models and devising technical plant concepts from construction through to operation of administration buildings.
Andreas Stehling has been a certified and sworn expert for sanitary engineering since 2019.

  • At CANZLER since 1991
  • Managing director and departmental head at Canzler GmbH
  • Head of the Mülheim an der Ruhr office
  • 1991 degree in Engineering specializing in supply technology from Bochum University of Applied Sciences
  • 1980 – 1987 Worked for Friedrich Stehling in Essen
  • 1987 Master craftsman in central heating and ventilation fitting
  • 1985 Master craftsman in gas fitting and plumbing


Specialist areas





  • Training and meeting places
  • office and administration buildings
  • Retail and malls (cinema)
  • Hotels and hospitality
  • Industrial and production buildings
  • Hospitals and laboratory buildings
  • Museums and cultural buildings


Selection of projects supervised 



Further training


  • Energy Saving Decree (EnEV), Inge­nieurkammer Bau NRW 
  • Energetic evaluation of plant technology in EnEV: DIN V 4701 T 10, Inge­nieurkammer West e. V. 
  • Special building decrees, Inge­nieurkammer West e. V.
  • Wesen des Sachverständigen, Construction section of the North Rhine-Westphalia Chamber of Engineers.




  • Construction section of the North Rhine-Westphalia Chamber of Engineers 
  • German Technical and Scientific Association for Gas and Water (DVGW) 
  • Sanitary engineering committee (FA SAN) in the German Association of Engineers (VDI)-Construction and Building Technology Society(GBG) technical fittings department
  • Member of the VDI and DVGW guidelines committees
  • Head of the technical fittings working group in the RBV of VDI GBG 
  • VDE Association for Electrical, Electronic & Information Technologies
  • Working Group Hotel Real Estate
  • Honorary associate judge of the Court of Appeal and the State Court of Appeal of the North Rhine-Westphalia Higher Administrative Court