About Us

Founded by Trevor Walston in 1980, Dewco Limited has steadily grown to become one of the South’s most trusted specialist contractors in mechanical building services. Renowned for our excellence in service delivery, our success over the years can be attributed to investing in what makes us unique, our valuable expertise.

As a solely mechanical contractor we have outstanding technical knowledge and a strong track record in all the major public and private sectors. Our multi-disciplined inhouse services encompass the lifecycle of your projects from conception and design to installation.

Our culture not only encourages our dedicated employees but supports personal progression, with many of our workforce developing their skills through the Company.

Now headed by Trevor’s Son, Robert Walston, the Company continues to be steered with long term perspective, attracting new business whilst remaining the preferred partner of choice.