Professional Air Conditioning Installation in Louisville, CO

It can’t be stressed enough how essential it is to have a solid performing AC system for your home or business in Louisville, CO. If you’re in the market for a new AC system installation, Welzig Heating and Air is here to assist you! We have highly trained and experienced NATE certified technicians who are fully equipped and ready to serve you! As a Bryant Factory Authorized Dealer, we guarantee superior installation service to ensure you have a cool, healthy, and comfortable environment throughout the hot seasons in our area.

Expert Evaluation

We’ll get started with a free consultation to evaluate your cooling requirements. Based on your preferences, layout of your property, and budget, we’ll come up with the ideal AC system and design that will meet your needs. When you select the perfect AC system, you can trust that it will be installed with quality workmanship. Post installation, your system will be tested for efficient and effective operation. We’ll also demonstrate how to best utilize your system for minimal energy expenditure and maximum comfort in your space.

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When you choose to work with us, you can count on our expertise and professionalism, quality products, customized solutions for your environment, and timely installation service. We always follow up with our customers to ensure they are satisfied with our services. We’ll also make sure you have plans in place to keep your warranty protected and your system running smoothly year after year. It’s a good idea to look into our Welzig Comfort Program which gives you access to priority servicing, discounts on repairs, 21-point safety inspections, thorough tune-ups, and peace of mind with a system that is not likely to develop any major issues. When you’re trying to find the most reliable air conditioning installation service in Louisville, don’t hesitate to give us a call to schedule a free consultation!

AC Replacement, Air Conditioning Replacement & AC Installation Boulder, CO, Longmont, CO & Louisville, CO

Central AC Replacement, Cooling System Replacement & Central Air Installation

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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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Free Estimate

Air Conditioner Installation

Air Conditioner Replacement

Central Air Replacement

Central AC Installation

Cooling System Installation

Central AC Replacement

Louisville, CO