H.G.S. – gas engine expertise

The gas specialist in a strong group.

H.G.S. is a company of the ENGIE group. ENGIE is Europe´s leading brand for the efficient use of energies. With 3,000 employees at 30 locations, ENGIE is your key in Germany to your specific prospects on a market that is absolutely future proof. An MWM partner in the ENGIE group, H.G.S. provides quality services for gas engines and power plants as well as power-generating solutions based on cogeneration.


We have a lot to offer. For all aspects of engines and units, natural gas, biogas, firedamp, and regenerative gases. From CHP units to 24/7 emergency services, including replacement parts for gas engines

Our range of services:

  • Commissioning, maintenance and repair
  • Engine management
  • Oil management
  • Remote and plant monitoring
  • Gas detector  calibration in compliance with the applicable German safety regulations (§ 56 UVV Gase VBG 61) 
  • Exhaust emission measurements in compliance with Technical Instructions on Air Quality Control (TA-Luft)
  • Plant construction, optimization and modernization
  • Spare parts and replacement of engines, aggregates and electronical components
  • Xchange parts and short blocks
  • Major overhaul of engines in own workshop
  • Damage analysis and repair
  • Standby and 24/7 emergency service, 365 days a year
  • crankcase processing / boring machine technology