Longmont’s Premier Gas Line Service Provider

At Welzig Heating and Air, we understand how crucial it is to have efficient, reliable, and safe gas lines in your home in Longmont, CO. Your gas lines are necessary for the operation of important appliances such as stoves, dryers, water heaters, and your heating system. Our team of NATE-certified specialists can install, replace, maintain, and repair gas lines to ensure the safe operation of your appliances. We follow all safety protocols, local codes, and use the highest quality materials that are built to last. When working with us, you can expect your gas lines to operate without the risk of leaks and other concerns.

Put Safety First with Welzig Heating and Air Gas Line Services

If you’re working on new construction or upgrading your heating equipment at home, our team of professionals can install gas lines to meet your particular needs. We’ll carefully work with you to figure out your specific needs, so you can depend on a heating system that will work perfectly at your residence. If you have low pressure and discover leaks in your gas lines, our experienced technicians will diagnose and repair the issues quickly, so you’re not at risk in your home. To keep your gas lines working correctly without any risks, our regular maintenance will ensure there are no issues. We use advanced diagnostic equipment and tools for leak detection, pressure testing, and line inspections. With regular maintenance and care, you can prolong the life of your gas lines and heating equipment.

For professional and dependable gas line services, you can always count on Welzig Heating and Air! Make sure to contact us today to schedule your next gas line service, so you have peace of mind knowing you’re safe at home without dangers of gas leaks or issues with your heating equipment or other appliances.

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.


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!

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