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Ductless HVAC Solutions

Ductless HVAC presents a unique, versatile and affordable opportunity for ideal comfort just about anywhere you need it. Does a single or several rooms feel overheated or chilly? Dealing with a tight installation space? No ductwork? Not willing to tackle a messy and time-consuming renovation project? No problem. Welzig Heating and Air answers with a perfectly designed, compact and quiet ductless configuration seamlessly incorporated and typically up and running in an afternoon.

As a Bryant Factory Authorized Dealer, we’re a three-time Bryant Circle of Champions Award winner and offer a truly amazing and innovative line of ductless air conditioners and heat pumps. Featuring inverter technology, the output of the system automatically matches the demands of the specific room for ideal and consistent temperature at all times. Take advantage of the ultimate in zone control, wifi accessibility, programmability, multi-stage filtration and outstanding efficiency levels.

Certified Ductless HVAC Services, 24/7

Our NATE-certified technicians guide you through important decisions, determine the right fit for your home or business and handle every aspect of installation to impeccable standards. From aesthetics and sound levels to warranty coverage, nothing gets overlooked. Get in touch with us at (720) 336-3777 for ductless HVAC installation, replacement, repairs, seasonal maintenance and 24/7 emergency response anywhere in Boulder.

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.

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