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A brand of Bouygues Energies & Services
Kummler+Matter EVT


We plan, design and implement practical air-conditioning systems for the well-being of people and the good of the environment.

Our industry-specific know-how and experience range from the installation of simple air conditioners for ambient comfort to large-scale projects in industry and research. We thus meet the most demanding requirements for complex building installations.


Optimal indoor climatic conditions are essential for well-being. In work processes, the right climate is a decisive factor for quality, productivity and safety.


Our customers and partners include general contractors, industrial and service companies as well as real estate companies and agencies, and specialists such as planners, architects and engineers. We ensure a good climate in administration buildings and institutions, in airports, railway stations, hotels and shopping centres.

Our services:

  • Individual consultancy
  • Planning of conversions and renovations
  • Planning and installation of new systems
  • Measuring services, condition analyses and optimisations
  • Qualified service technicians