CALL/TEXT TO BOOK TODAY (720) 336-3777

Indoor Air Quality Services in Louisville, CO

Everyone deserves access to clean and fresh air in their indoor environments. If you have a home or business in Louisville, CO and have problems with your indoor air quality, Welzig Heating and Air is here to help with professional indoor air quality services. Our NATE certified professionals specialize in a number of air quality services including duct cleaning, air quality testing, UV air purification, humidity control, and much more!

Top-Notch Quality

You can count on our team to carefully assess your air quality to determine the source of any pollutants, contaminants, or allergens. This will permit us to make recommendations for the most effective steps to improve your indoor air quality. As dust, dirt, debris, and other contaminants build up in your ductwork system, it’s important to have your ducts cleaned from time to time. Our duct cleaning service is thorough and we can safely remove all of the buildup out of your system so you don’t have to worry about recirculating contaminants in your breathing air.

A great way to improve your indoor air quality is with the installation of one of our advanced UV air purification systems. These systems work to eliminate the threat of pathogens and filter out the finest airborne particles including mold spores, dust, and debris. With our humidifiers and dehumidifiers, you can keep balanced humidity in your environment which will protect your health and prevent damage to your property. When you’re trying to find the most dependable indoor air quality services in Louisville, make sure to get in touch with us as soon as possible for healthy, fresh, and clean air in your environment!

Satisfied Customers
They Speak For Us

Dave Kaplan-Gomez and James Miltersen installed my new Tankless Water Heater. Both were polite and professional. Care was taken not to damage anything in my house which I really appreciated. I use Welzig for all my HVAC needs and highly recommend them.


Our 23-year-old A/C system ran out of “borrowed time” and became too difficult to continue maintaining. With great advice from Casey Welzig,, we replaced the old system with a Bryant Evolution A/C system. Max Loustaunau and Seth Bernhardt did an excellent job with removing the old system and installing the new one. Both of them are great to work with — very professional and very personable. We are really amazed at how much better the new system works!


Bob came out to look at our swamp cooler and was remarkably helpful and professional. Not only did he give me a knowledgeable diagnosis, but he also taught me a lot in the process. We’ll be calling him for all future needs with our cooling system.

Leave Us a Review!
Google Reviews
Angies List Reviews
Yelp Reviews
Facebook Reviews
Contact Us Now For A
Free Estimate