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Professional Gas Line Services in Louisville, CO

For more than a quarter of a century, Welzig Heating and Air have been providing the local residents and businesses of Lafayette, CO with unparalleled and reliable gas line services. We are fully licensed, insured, and bonded with a team of greatly experienced technicians who use the newest technology and tools to ensure the safety and efficiency of your gas lines.

Our gas line services in Lafayette, CO are comprehensive, catering from gas line installation, gas leak detection, gas line repair, to complete gas line replacement. We understand the intricate details about these services and acknowledge the integral role that an efficient gas line plays in one’s home. It is the main conductor for powering different significant appliances, such as your stove, dryer, and water heater. If something goes wrong, you need a reliable team to ensure it is handled efficiently, safely, and quickly. In comes Welzig Heating and Air!

In Lafayette, CO, we have successfully served many homes and businesses, fortifying our reputation as the most reliable in the industry. Beyond Lafayette, we service the surrounding areas. In Boulder, CO, for instance, we offer top-notch furnace repair services. Our technicians are rigorously trained to quickly identify the issues and seek out the most sustainable repair solution optimally.

Expert Gas Line Services at Welzig Heating and Air in Lafayette, CO

Drilled into the bedrock of Welzig Heating and Air are honesty and integrity. We are committed to always upholding exceptional customer service. Our major goal is to ensure a comfortable indoor temperature for our numerous customers. These virtues guide our daily operations and relationships with our customers. Since the genesis of our company in 1994, we have consistently strived to foster a respectful, positive, and encouraging work atmosphere while providing training that promotes growth and success for our team members.

Every service rendered by Welzig Heating and Air has customer satisfaction at its apex. Quick response, professional service, quality workmanship, friendly staff, and competitive pricing are some of the few strengths that delineate us in the market and keep us agile and ahead. Consequently, for all your gas line services and more in Lafayette, CO, let Welzig Heating and Air be your first call.

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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