• Engineering and construction of all types of liquid and gas pipes for conveying natural gas, industrial gases, chemical and petrochemical products
  • Engineering and construction of low and medium pressure pipes for gas distribution
  • Engineering and construction of industrial pipes and measuring & control stations
  • Engineering and construction of industrial fire-fighting pipes
  • Electromechanical equipment for the steel industry, chemical and petrochemical industry, automobile industry, gas and electricity stations
  • Management and maintenance of underground infrastructure
  • Earth works, water works, road works

Cable works

  • Engineering and construction of high voltage cables

District heating

  • Engineering and construction of heat networks for transport of heat, cold and steam


  • General tunnel constructions
  • Pipe jacking
  • Microtunnelling
  • Horizontal directional drilling
  • Vertical sinking of shafts
  • Segmental lining tunnels


  • Complex buildings
  • Residential and offices
  • Biotech
  • Prisons
  • Hospitals
  • Schools and sports centres


  • Civil engineering structures
  • Construction of bridges
  • Construction of bus depots and stations

Water works

  • Engineering and construction of collectors and sewer systems for waste-water
  • Engineering and construction of transport and distribution lines for drinking water and process water
  • Engineering and construction of purification plants for waste-water, drinking water and process water
  • Engineering and construction of water towers and reservoirs
  • Engineering and construction of pump stations
  • Engineering and construction of irrigation systems

Nuclear works

  • Engineering and construction of cooling pipes for nuclear power stations, traditional power stations and combined power stations

Restoration & Renovation

  • Restoration and renovation of buildings and monuments with disassembly and reassembly of construction parts, careful demolition, beam head repairs, reroofing, façade restoration, timber restoration, masonry, concrete and natural stone repairs, sealing of basements and strengthening foundations

Rail works

  • Renovation and construction of railways for tram and train

Special foundation and injection techniques

  • Jet-grouting to stabilise soils, stabilisation of buildings and shaft construction
  • Sol injection, ground anchors, nail joints, micropiles, underpinning methods
  • Soil stabilisation with Portland cement pillars through pressurised deepmixing
  • Crack injection, concrete spraying techniques, coatings, epoxy- and hydraulic mortars, water-sealing injection for repairing structures in tunnels
  • Sewer relining and repairs including cleaning, camera inspections, polyurethane and cement sealing injection, spray concrete, valve method
  • Installation and application of sound barriers, tunnel linings, bridge- and tunnel joints, surface renovation and construction of foundations

Dream works

  • Innovation
  • Visionary mobility solutions