Welcome to Union Technik

Union Technik - your full service partner

Originally, we come from the mineral oil industry. Over 50 years ago, one of the German pioneers for products and services related to fuels, Eller-Montan-Comp. GmbH, decided to spin off its technical department. This was the birth of UNION TECHNIK. Starting with the service for the petrol station network of Eller Montan Comp. GmbH, we succeeded over time in offering our services to a large number of mineral oil producers and distributors.

In addition to our purely technical tank expertise, we have also developed our building services know-how. We manage shop areas of petrol stations and carry out technical maintenance and repair work for numerous industrial and commercial properties. In the borad field of electromobility we are your reliable partner for the installation and maintenance of charging infrastructure, completely independent of manufacturers.

Our services

Efficient petrol station technology

Efficient petrol station technology to keep your business running! Thanks to the necessary infrastructure, we carry out the maintenance of technical petrol station equipment with our own specialist staff and offer our customers from a single source. This also includes, for example, special drainage technology from regular checks to the sealing of liquid-tight roadways.

  • maintenance services
  • convenience services
  • project services


Our range of services includes the planning, commissioning, maintenance and repair of all necessary work in the field of electromobility. In detail, these are the following competences:

  • Planning and implementation of the installation date
  • Commissioning of the charging columns including the preparation of a test report in accordance with DGUV DIN VDE 0100 Part 600/DIN VDE 0105-100
  • Planning and co-execution of an expert inspection
  • Planning and execution of preventive maintenance according to manufacturer's instructions
  • Planning and implementation of the legally prescribed maintenance work on the charging points