During these unprecedented times we recognise the need to follow the guidelines to slow the rate of spread of the virus. We also recognise that there is a need for essential services to continue. To that end, Callidus Design have implemented a complete suite of remote-working measures to allow services to be provided as normal. Video-conferencing has replaced all face-to-face meetings with some site surveys being conducted by client’s on-site staff by means of photographs and video. Where site surveys for clients in key essential services are unavoidable, these can still be carried out with the application of strict PPE and distancing measures. With these procedures in place, Callidus Design are fully operational and ready to provide our services where required.


Callidus Design is a privately owned firm of Consulting Engineers based in Livingston, Scotland. We provide Building Services, Mechanical, Electrical, Process, Environmental and Controls Engineering solutions for building projects throughout the United Kingdom. We also provide a troubleshooting service for all building and process services and Expert Witness / Forensic Engineering function for disputes, arbitration and claims.

Callidus Design have been operating since 2005 and carry out projects over a wide range of business sectors, including the following:

  • Industrial
  • Healthcare
  • Education
  • Sport & Leisure
  • Commercial
  • Listed and Historical Buildings
  • Retail
  • Renewables




We pride ourselves on the quality of service provided to all our clients which always aims to build or maintain a long term relationship. We positively engage with all parties involved on a project and ensure that we always produce clear, concise and comprehensive design information which is fully coordinated with the building structure(s). Our track record of receiving regular repeat business is testament to our approach.

Please review our website and if you feel Callidus Design can be of service on your project, please get in touch.