couple learning on laptop.

The world of HVAC can seem overwhelming at times. In fact, what does HVAC even mean? (Find out in our Glossary). To clear things up we've put together a section for you to learn more about the industry. Get started by choosing a topic below:


HVAC 101
Learn the industry basics.


Air Quality and Health
Learn how the air in your home affects your health.


Frequently Asked Questions cover the most common questions we hear from our customers.


Learn what all the industry terms mean.


Try these tips before contacting us for service.

Need HVAC Service?

Contact the experts at Design Air.

Call us at 406-251-7997!

Design Air proudly provides HVAC service to CITIES and the surrounding communities. Visit our service area page for more coverage details, call us at 406-251-7997, or request service online today.