About Us

With Over 57 year of trading we have a great deal of experience to offer, especially when we take on the role of principal contractor.

Expansion in 1986 led to our introduction into the OFF-SITE manufacturing sectors, packaged plantrooms, skids and pre-fabricated pipe solutions.

The group turnover remains in the region of £20 Million and still today a family-owned private company.

Our Prefabrication Facility

CAS relocated in 2015 to a previous retail distribution centre. It's now the head of operations for the CAS Group of Companies. Space available now affords CAS the opportunities to secure large pre-fab schemes and roll-out of pipe modules/risers

CAS Group of Companies


HVAC Mechanical & Plumbing Building Services Contractor


Experts in field of Acoustics, Louvers and Cladding solutions.


Specialised in High Velocity Induced Air Systems for large spaces

Constant Air Systems Ltd (CAS) incorporated in February 1965 as a Heating, Ventilation, & Air Conditioning Contractor.

Focusing on sectors such as:

  • Commercial
  • Education
  • Retail
  • Motor Industry
  • Pharmaceutical
  • Health
  • Aircraft hangars
  • Logistic distribution warehouses


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