Our range of services

Our additional services for the necessary hygiene
of air conditioning systems according to the state of the art

  • Independent certification and inspection of your equipment through hygiene inspections according to VDI 6022
  • Taking of contact samples, swab samples, wipe samples
  • Regular sampling and analysis of humidifier water
  • Airborne measurements in the air conditioning system and the associated rooms
  • Particle measurements
  • Analysis of all samples in an independent laboratory
  • Dust surface density determination
  • Legionella examinations in water-bearing components
  • Preparation of reports with analysis of the current state
  • Creation of renovation concepts for the troubleshooting in hygienically problematic HVAC systems
  • Planning, monitoring and acceptance of renovation of the ventilation systems
  • Carrying out maintenance work according to VDI 6022
  • Implementation of the renovation of ventilation systems according to VDI 6022
  • Hazard analysis on evaporative cooling systems according to VDI 2047
  • Monitoring of evaporative cooling systems, chemical and physical characteristics, microbiology according to VDI 6022 and VDI 2047
  • Maintenance and cleaning of evaporative cooling systems according to VDI 6022 and VDI 2047


Our selected customers deserve only the best. We are an ambitious company (founded in 2004) with the claim to be the best in our industry. As a result, our highly motivated technical staff is constantly trained to maintain our technical "know-how lead"and continue to expand. Our main activities are in Hungary and neighboring countries such as Austria and Slovakia.

Year Established

More than520

Projects Completed



  • schaeffler




For any inquiries, questions or commendations, please call:
+3620 541 3048 or fillout the following form:

    Head Office

    Company address Siegfried Kalmbach e.K.
    Freiburger Allee 65, 71034 Böblingen
    Tel: +49 7031 46 92 75

    Anschrift für techn. und kaufmännischen
    Schriftverkehr Zweigstelle Ungarn

    Árnyas út 24.
    H-1121 Budapest
    Tel: +36 1 275 94 76
    Mobil: +36 205 41 30 48


    Registered Court: Böblingen
    Bank: Raiffeisenbank oberes Gäu
    Int-IdNr.: DE236077007
    Owner: Siegfried Kalmbach e.K.
    Swift Code: GENODES1ROG
    IBAN: DE41 60069876 00 89775007
    Bank account: 600 698 76
    Account Nr.: 89 775 007
    Company registration number: HRA 683/5.11.2004
    German Tax Nr.: 56275 / 65720