Professional Heat Pumps & Dual Fuel in Lafayette, CO

Heat Pumps & Dual Fuel in Lafayette, CO have never been more essential than they are today. At Welzig Heating and Air, we are proud to offer efficient and affordable heat pump and dual fuel options for residential and commercial properties in Lafayette, CO. Our company has been serving Colorado since 1994 with only the highest quality solutions, paving the way for green energy and cost-effective heating and cooling alternatives.

Understanding the significance of the changing energy systems, Welzig Heating and Air introduced heat pumps and dual fuel systems that are proven to increase energy efficiency, lower energy costs, and reduce reliance on fossil fuels. Heat pumps, versatile devices that can both cool and heat a home by moving heat from one place to another, offer a sustainable and energy-efficient way to regulate your home’s climate. Dual fuel systems, on the other hand, combine the benefits of a heat pump with a traditional furnace, providing flexibility, efficiency, and a back-up option when extreme Colorado temperatures hit.

The profound principles of honesty and integrity are the lenses through which we view every aspect of our work at Welzig Heating and Air. Our founders and owners have always aimed to provide extraordinary customer service since the establishment of the company. Promoting an environment of positivity, encouragement, and respect, we ensure our team members, as well as our clients, feel valued and respected.

Expert Heat Pumps & Dual Fuel Services at Welzig Heating and Air

Not only do we focus on uplifting working conditions, but also the continuous growth and development of our team members. By providing regular training, we ensure that our team stays abreast of the latest developments in the heating and cooling industry. This commitment to learning translates to success and excellent service provision for our valued clients.

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Dual Fuel Systems, Heat Pump Dual Fuel Setup & Heat Pumps & Dual Fuel Boulder, CO, Longmont, CO & Louisville, CO

Dual Fuel Heating, Heat Pump Dual Fuel Setup & Heat Pump and Gas Furnace

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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.

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Lafayette, CO