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Tank Water Heater Repair & Service in Boulder

It’s easy to take your water heater for granted until there’s a malfunction. When you need quick, effective and quality solutions to suit your specific residential or commercial needs in Boulder, Colorado, Welzig Heating and Air provides new construction installation, replacement, maintenance and repairs. Our licensed plumbers remain on-call 24/7. Simply get in touch at (720) 336-3777.

While tank-style water heaters might appear interchangeable, the sizing, heating elements, fuel source, efficiency and a wide range of features affect satisfaction with performance. Family owned and operated and bringing 30 years of experience to every job, we only recommend carefully vetted products that ensure long-term reliability. Welzig Heating and Air completes installations properly, swiftly and to exacting standards.

Contact the Experts at Welzig Heating and Air

Welzig Heating and Airstrongly encourages scheduling annual upkeep for all makes and models of tank-style water heaters. We help you avoid disruption and property damage, extend service life, optimize capacity and trim running costs. Along with proactive maintenance, we solve problems and help you make smart decisions between repair and place. We are your water heating specialists in Boulder.

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!


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.


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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