Certified Heat Pump Services in Longmont, CO

One of our priorities at Welzig Heating and Air is to ensure you have a safe and comfortable living environment at your home in Longmont, CO. As a premier HVAC contractor in the community, we specialize in providing comprehensive heat pump services to keep your residence cool in the summer and warm in the winter. Our heat pump services cover new installations, system replacements, repairs, and maintenance.

Trust Welzig Heating and Air with All Your Heat Pump Needs!

When you’re working on new construction or you have a heat pump that is old and requires repairs too often, you’ll find that our new installations and replacements are second to none! As a Bryant Factory Authorized Dealer, we guarantee we can help you find the perfect heat pump for your comfort needs and budget at home. Our heat pumps are built to last and provide superior comfort. We’ll ensure your new system is installed right and sized correctly according to factors such as square footage of your home, insulation values, and the number of people living in your home. To keep your heat pump running efficiently and to extend the life of your equipment, we recommend going for our maintenance services before each heating or cooling season. We will thoroughly inspect your system, make sure you have appropriate refrigerant levels, check for leaks, and ensure all safety features and electrical components are secure and working as intended.

When you’re looking for quality heat pump services at competitive prices, make sure to contact us today to schedule a free consultation. We offer some of the best services in town and we’ll work hard to earn your long-term business.

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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