Longmont, CO Certified Water Heater Services

At Welzig Heating and Air, we understand how necessary it is to have a reliable and efficient water heater in your residence in Longmont, CO. Whether you need maintenance, repair, or a replacement water heater, we are here for all your needed water heater services.

Trust Welzig Heating and Air with Your Water Heater Service Needs

When going for a water heater replacement, it’s important to consider the size of water heater needed to cover the hot water demands of your home. Our team of NATE-certified professionals will help you determine the most appropriate water heater for your particular needs and budget. We offer premium-quality water heaters that are energy efficient and built to last. Our water heaters also come with extended warranties so you can enjoy peace of mind and 100% satisfaction. If you have a water heater that is experiencing problems, our water heater repairs are second to none. If you have a leaking tank, faulty thermostat, or other concerns, we’ll diagnose and fix the problem so you won’t have to deal with any issues again for a long time. Our maintenance services will ensure that your water heater doesn’t face problems with scaling, lowered efficiency, and costly system breakdowns.

Water Heater ServiceWater Heater ReplacementWater Heater Installation

When you choose us for our dependable water heater services, you’ll never have to worry about hot water issues! We always offer immediate assistance when you have trouble with your hot water with 24/7 emergency repairs. Whenever you experience a problem with your water heater, make sure to give us a call!

Water Heater Replacement, Water Heater Installation & Water Heater Service Boulder, CO, Longmont, CO & Louisville, CO

Water Heater Repair, Water Heater Maintenance & Water Heater Replacement

Water Heater MaintenanceWater Heater ServiceWater Heater Installation

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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Longmont, CO