With over 40 years of experience, serving clients in the commercial, industrial and public sectors, Callisia pride themselves in offering a good level of mechanical knowledge and design for all aspects of mechanical services building solutions. Based in Chertsey, Surrey, we service projects of all sizes – from small modification, to Cat B/ office fit out and CAT A, taking into consideration all design responsibility as and when instructed.
Over the years we have worked with banks, retail chains, hospitals, office-based businesses, universities, and manufacturers – among others – delivering bespoke ventilation, heating, air conditioning, and water systems.

Using CAD, Revit and design programmes such as Hevacomp and a like. we provide a drawing board to completion service, covering technical design, installation, and ongoing support. Each project is an individual enterprise, designed to fit around your business objectives and working patterns, with the safety and comfort of your building users at the forefront of our considerations.

Services We Provide

  • Air conditioning systems
  • Heating systems
  • Ventilation systems
  • Water and sanitation systems
  • Project management and planning support

Our Customers

People we work with include commercial landlords and facilities managers, main contractors, M&E consultants, architects, designers and more. Past clients include:

  • Montagu
  • Just eat
  • Alpha FX
  • TOG
  • Shine TV
  • Trust Pilot
  • Warner Bros
  • Kobalt
  • Endemol

You can read more about our projects– from re-designs to complex refurbishments, from new builds to repairs – by visiting our case studies page. We’re always happy to discuss projects in person and testimonials are available on request, so please feel free to give us a call.

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