HVAC aftermarket

In demanding maritime and offshore conditions, a functioning HVAC system is critial to the safety and economical operation of the vessel or rig. Structured maintenance programs with our global service network can minimise expensive downtime.


  • HVAC, refrigeration and environmental aftermarket services that maintain compliance and vessel welfare
  • Global service network of aftermarket stations and flying squads
  • Service of multi-brand systems in offshore living quarters, machine rooms, storage facilities and technical areas

International network of aftermarket stations

Callenberg Technology Group is one of few HVAC companies providing customers with lifecycle support from newbuild through operation.

Aftermarket support is delivered through a network of service stations in strategic locations. Callenberg Technology Group is strengthening our network of aftermarket stations through organic growth, strategic partnerships and acquisition.

In 2014, we acquired Aberdeen based Integrated Engineering Services (IES). In addition to enhancing our strong position in the North Sea offshore aftermarket, the IES acquisition allowed us to strengthen our capabilities by establishing a global service response team.


Integrated Engineering Services Ltd (IES) was acquired in April 2014

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