ABOUT

In 1996, John Berns established Conditioned Air Systems (CAS) with the clear goal of ensuring that all his clients HVAC/R systems run as efficiently and smoothly as possible.

Guided by this simple directive, our technicians understand the importance of comprehending all the variables in a HVAC/R system. Our technicians work to provide the best solution for the customer.

Over the last 30 years, this attention to detail and ability to learn, grow, and adapt is a small part of why CAS is not only one of the top commercial HVAC/R providers in the Billings area, but they’re also the HVAC/R service company for some of the largest telecommunications companies in Montana.

CAS provides service for Billings and its surrounding communities.