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Tankless Water Heaters in Fort Collins, CO

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A tankless water heater heats water as you need it instead of storing a supply of hot water in a tank. For Fort Collins homeowners considering a different approach to water heating, the right tankless system can provide hot water on demand while taking up less equipment space than a traditional storage tank. Northern Air installs and services tankless water heaters in Fort Collins, CO, based on the home’s hot water demand and existing setup.

Tankless equipment needs to be properly sized for the amount of hot water your household may use at one time. As part of our water heater services, Northern Air can evaluate your current system, discuss whether going tankless makes sense for your home, and handle the installation of compatible equipment.

Thinking about switching to tankless? Book tankless water heater service online with Northern Air in Fort Collins.

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Our Tankless Water Heater Services

Tankless water heaters operate differently from traditional storage-tank equipment, and their service needs reflect those differences. Northern Air works with tankless systems throughout their service life, including new installations, troubleshooting, maintenance, and eventual replacement.

Tankless Water Heater Installation

Installing a tankless water heater starts with determining whether the home and its existing setup can support the equipment. Our technicians consider hot water demand, fuel or electrical requirements, venting, available space, and applicable connections before installing and testing the system.

Tankless Water Heater Replacement

An older tankless unit can eventually develop recurring problems or stop keeping up with household demand. Northern Air can evaluate the existing equipment and help determine when replacing the unit makes more sense than continuing to repair it.

Tankless Water Heater Repair

Temperature fluctuations, error codes, ignition problems, reduced hot water flow, or a system that fails to heat can indicate a problem that needs diagnosis. We inspect the applicable components and controls to identify the source before recommending a repair.

Tankless Water Heater Maintenance

Mineral accumulation and other operating conditions can affect tankless water heaters over time. Maintenance allows our technicians to inspect applicable components, check system operation, and perform manufacturer-appropriate service based on the equipment.

Tankless Water Heater Sizing

Tankless equipment needs enough capacity to handle the home’s expected hot water demand. We consider how many fixtures may need hot water simultaneously and the required temperature rise when determining an appropriate system size.

Converting From a Tank to Tankless

Switching from a conventional storage water heater to tankless equipment may require more than removing one unit and connecting another. Northern Air can evaluate the existing plumbing, fuel or electrical supply, venting, and installation space to determine what changes may be necessary before you make the switch.

Benefits of a Tankless Water Heater

Tankless water heaters provide hot water on demand rather than continuously keeping a tank of water heated. That design can reduce standby energy use and provides a continuing supply of hot water when the system is properly sized for the household’s demand. Without a storage tank, the equipment also takes up less space and eliminates the possibility of a traditional tank rupturing and releasing its stored water. Tankless systems can be a practical option for Fort Collins homeowners replacing an older water heater, especially when equipment space, hot water demand, and long-term energy use factor into the decision.

We don’t just talk about quality—we show it

Our team adheres to recommended service procedures that optimize safety, efficiency, and performance. Explore our gallery to see the difference expertise makes.

Why Choose Northern Air for Your Tankless Water Heater Services?

Tankless equipment needs to match both the home’s hot water demand and the systems that support it. Northern Air looks at those details before installation and applies the same equipment-specific approach when servicing an existing unit.

  • We calculate simultaneous hot water demand: Tankless sizing depends on how much hot water may be needed at once, so we consider fixture use and required temperature rise when evaluating equipment.

  • We evaluate the home before a tankless conversion: Switching from a storage tank may require changes to fuel supply, electrical service, venting, plumbing, or equipment placement. We identify applicable requirements before installation begins.

  • We account for Fort Collins incoming water temperatures: Colder incoming water requires a tankless unit to produce a greater temperature rise, which can affect system sizing and available flow.

  • We troubleshoot tankless-specific symptoms: Error codes, ignition trouble, fluctuating temperatures, and reduced flow require a different diagnostic approach than problems with a conventional storage tank.

  • We service the equipment after installation: Tankless systems still need ongoing attention. Northern Air can inspect and maintain applicable components based on the requirements of the equipment.

  • We help you decide if tankless makes sense: A tankless system is not the best fit for every existing setup. We can compare the home’s requirements with the equipment before you decide to make the switch.

See if Tankless Is Right for Your Home

If you’re considering replacing a storage tank or your current tankless unit needs attention, Northern Air can evaluate your hot water needs and determine the appropriate next step.

Book tankless water heater service online with Northern Air in Fort Collins, CO.

$500 Off

Tankless Water Heater Upgrade
Must be mentioned at the time of Booking. Subject to change without notice.
Expires: Oct 31, 2026

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Review Highlights
Customers consistently praise the team's professionalism, friendliness, and expertise in maintaining and repairing HVAC systems, with many highlighting how knowledgeable and thorough technicians like Matt, Anthony, and others are in diagnosing problems and explaining the work being done. Long-term customers especially appreciate the reliability and trustworthiness of the service, noting prompt response times, meticulous attention to detail—including cleaning up after themselves—and willingness to go above and beyond by offering maintenance tips and addressing issues beyond the immediate repair. The combination of quality workmanship, honest pricing, excellent communication, and the genuine care shown to customers has earned strong loyalty, with many families recommending the services to friends and choosing to stay with the company for years.

Based on 449+ Reviews

JJ and Scott were professional, personable and efficient. The system works great and the house was cleaner when they left than when they arrived. I can't say enough about Northern Air.
Dave Hawkins
1 day ago
Ronny was friendly and quick! I appreciate his work and time. Thank you Ronny.
Courtney Carter
1 day ago
Northern air is the best HVAC company around! It's hard to find an honest and reliable company. They have always been so responsive along with transparent and honest about their prices. I am so happy to have such a great company taking care of my HVAC system.
Kirstin Simons
2 days ago
Matt W has been servicing our equipment for several years. He is very friendly and knowledgeable. He always asks about our lives, health, etc. a great guy.. We always ask for him.
Joe Smith
3 days ago
Benjamin did ALL inspections and cleaning; he is skilled, experienced, answered all questions.
R Reid
3 days ago
Professional, friendly and knowledgeable technician.
mike pendergast
4 days ago
Anthony went above and beyond in routine maintenance, identifying related issues with our fireplace glass which had melted insulation. He put up a sign to not use the fireplace, which was a big help. Thank you!
Patricia Stutz-Tanenbaum
5 days ago
Matt from northern colorado air is one of the best AC techs I have ever met, he knows the systems like the back of his hand..very professional and a nice guy!!!
Michael Loukonen
5 days ago
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    Keep your home comfortable year-round with Northern Air

    From routine maintenance to unexpected repairs and complete system replacements, Northern Air is here to keep your home comfortable through every season. Count on our experienced local team for dependable HVAC service in Fort Collins.