Calstan provides a range of mechanical services, including:

Plumbing and heating

Plumbing and Heating

Quality plumbing and heating installed and maintained to the highest domestic and commercial standards.

Commercial Services

Commercial Services

We offer multi skilled tradesmen on a variety of projects, installing and maintaining high quality mechanical services for commercial clients.

Underfloor heating

Underfloor Heating

Specialists in design and installation of underfloor heating that is fully accredited by Solflex

Solar panel systems

Solar Panel Systems

Proven solar water heating installers in both domestic and commercial environments




Calstan are specially trained to undertake and complete disinfection of water systems (Chlorinations). All types of water systems are disinfected in line with the requirements of the current legislation and approved codes of practice.



Find out more about our previous projects

Whether you’re a domestic or commercial client, looking to install a new system or maintain an existing one, Calstan can help.

Why choose Calstan Mechanical?

  • We have 25 years’ experience of delivering mechanical services for domestic and commercial clients
  • We’re committed to providing a professional and reliable service
  • We’re flexible, providing a tailor-made service to suit your specific requirements
  • Our work is carried out by fully qualified, accredited and experienced engineers
  • We cover a generous geographical area that includes Hampshire, Sussex, Surrey, Kent and London


Find out how Calstan can help