HVAC and Plumbing

Our HVAC and Plumbing division has skilled engineers, all of which are F-gas qualified to support your plant and equipment and we can serve a variety of manufacturers equipment including Mitsubishi, Hitachi, Samsung and Daikinamongst a few.

We cover a variety of systems including chiller plant, VRV systems, AC splits, cold rooms, display and fridge systems on either a single or multi-site basis. We also undertake ductwork services for air handling systems including filter service or replacement. 

  • Air conditioning
  • Dehumidifiers
  • Ducting
  • Windscreen demisters
  • Refrigeration units
  • Vapour sealed pipe insulation installation, service & maintenance

The scope of services begins from our consulting service to the final design concept. The HVAC and Plumbing team have the experience and capability of handling any type of ship’s mechanical plumbing, heating or cooling system, and it is at its best when tackling the innovative and unusual plumbing design problems required from our clients. 

We work with the client to develop a clearly defined statement of operational design requirements and specifications prepared to suit our client’s specific vessel and budget.

Core Services Offered

Fresh Water

  • Water treatment
  • Super chlorination
  • Vessel transfer systems 
  • High pressure wash-down systems 
  • UV filter
  • RO Plants 

Grey Water & Condense

Black Water

  • Black and grey holding tanks 
  • Discharge set ups to deck, overboard, suction etc.
  • Macerator pumps
  • Tank flushing systems
  • Carbon filters
  • STP Plants, Sewage transfer 

Chilled Water

  • Chiller Plants
  • Air handlers
  • FCUs ​​​​


  • Extraction/Ventilation
  • Custom made ducting
  • Low pressure compressed air
  • Horn compressors and pipework
  • Pneumatic door seal compressor, pipework and manual release 

Water-tight and A class penetrations (NoFirno & Roxtec Accreditation)


  • WC/showers and wet-rooms
  • Galley’s/Kiosks 


  • Diesel Boilers (KABOLA & POST MARINE HEATING Accreditation)
  • Boiler servicing & maintenance
  • Boiler Installations
  • Wet heating & Hot water system
  • Calorifiers
  • Radiators
  • Warm Air 

LSA Lifesaving appliances

  • Life raft commissioning and vacuum release system installation
  • Life buoy vacuum release system installation  

case studies

HSC Manannan

More information

QEC Carrier

More information

MY Shemara

More information

interested in finding out more?

Receive a call back from one of our dedicated team members.

client testimonials

You should be very proud of all that you do, it is wonderful.
Classic Yacht Owner
Many thanks for your rapid work today; we are back in action again
Chief Engineer, Solent Ship Operator
Please pass on my thanks and also the thanks from my Chief Executive and Operations Director, the support of the SMS team is very much appreciated
Head of Engineering, Solent Ferry Operator
Many thanks for your teams hard graft, the work was completed and as always I am extremely happy with the quality
Colour Sergeant, Royal Marines HM Naval Base Devonport
Thank the welders, the work that they produced was to the highest standard and were great to work with
Project Manager, UK Shipyard
ship repair call-out 2 hour response zones.
ship repair 2 hour response