Our Services
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Control Specialists
Our technicians are knowledgeable and experienced with both digital and pneumatic system controls.
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HVAC/R Systems
We work on and install heaters, boilers, furnaces, heat pumps, air conditioning units, chillers, walk-in coolers & freezers, refrigeration systems, process cooling, restaurant equipment and split systems.
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Retrofits
Adding new parts to an older system can improve performance and energy efficiency. This is a much more cost-effective option compared to buying new, with the same benefits of improved efficiency and lowered energy bills.
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Preventative Maintenance
Keep your machines from looking like this!
We perform regularly scheduled checks and maintenance to keep everything in working order.
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24/7 Service Response
When your heating or air conditioning goes out, it’s never convenient. We are here for all of your HVAC/R needs, regardless of the time.
Call 406-652-9333
Contact us
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.
TESTIMONIALS
Commercial Client
“Thank you for your service! We own 6 properties and plan on using you for our service.”
Residential Client