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Ductless HVAC Repair in Lafayette, CO

Welzig Heating and Air is a family-owned and operated HVAC company proudly serving homeowners and commercial businesses throughout Lafayette, CO, and surrounding areas since 1994. We understand how to maintain exceptional comfort in your indoor environment. If you rely on a ductless HVAC system for your heating and cooling needs, you’ll find that sometimes your system can develop issues that require professional repair. Our experts are highly trained, NATE-certified, and have the expertise to diagnose and repair all makes and models of ductless HVAC systems for your home or commercial space.

While ductless HVAC systems are well known for their durability, versatility, and energy-saving performance, they can develop certain problems from time to time. Some of the most common problems we address include refrigerant leaks, sensor or thermostat issues, airflow problems, strange odors, and loud noises. If your ductless HVAC system is experiencing any troubles like this or is not working, make sure to get in contact with us as soon as you can! With the latest diagnostic equipment, tools, and high-quality replacement parts, we guarantee repairs that will last!

Expert Performance & Evaluation

When it comes to ductless HVAC repairs, you’ll find that time is of the essence to prevent damage to your system. With a thorough understanding of the needs of your ductless HVAC system, we’ll be there for you to ensure your system runs in optimal condition. When you’re looking for timely and professional ductless HVAC repair service in Lafayette, give us a call or send us a text for a free repair quote!

Satisfied Customers
They Speak For Us

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.


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.

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