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

As a homeowner or business owner, one of the most important things you can do is to ensure your AC equipment runs safely, effectively, and efficiently. With routine maintenance, you can keep your AC system running in optimal condition and help prevent costly breakdowns down the line. If you have a home or business in Boulder, CO, Welzig Heating and Air is here to help! We are proud to offer comprehensive AC maintenance services that are guaranteed to keep your AC system protected and running smoothly for the long term.

When you have your AC system maintained by our NATE-certified technicians regularly, your system will require less energy to perform well. This will not only save you a lot of money on your energy costs, but lower your carbon footprint as well. Furthermore, our maintenance services will help to improve your indoor air quality for a healthier and more comfortable environment. You can count on our experts to thoroughly inspect your system and find any small problems before they become costly repair issues.

Our maintenance services include a thorough inspection of your system, cleaning of debris, lubrication of moving parts, checking of refrigerant levels, checking thermostat function, and much more! If you want to save more money, make sure to ask about our Comfort Club! When you enroll, you can appreciate special discounts on parts and labor, priority servicing, and peace of mind with a system that has minimal risk of developing costly issues. When you wish to have top-quality AC maintenance in Boulder, don’t hesitate to contact us at 720-336-3777!

Satisfied Customers
They Speak For Us

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!


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.


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