Rated 4.8 on Google

Emergency HVAC Services in Fort Collins, CO

Loveland Choice Award 2026 Winner
Best AC/Heating Service
Best Tankless Water Heater Dealer
2 Year Labor Warranty
Covers workmanship on qualifying services
Waived Diagnostic Fee
When you move forward with repair

Heating and cooling problems have a way of becoming urgent at the worst possible time. Your furnace might quit during a freezing Fort Collins night, the AC could stop cooling on a hot afternoon, or an equipment failure could start affecting customers, employees, or tenants at your business. Northern Air provides emergency HVAC services in Fort Collins, CO, for unexpected problems that need attention sooner than a routine appointment.

We respond to urgent heating and cooling issues in homes as well as commercial HVAC systems. With a 24/7 answering service, you have a way to reach Northern Air when equipment trouble happens outside normal business hours. Our technicians will troubleshoot the system, identify what caused the failure, and explain what needs to happen next.

If your heating or cooling system has stopped working or developed a problem that can’t wait, request emergency HVAC service with Northern Air.

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Emergency HVAC Problems We Handle

An HVAC emergency can look different depending on the equipment, the weather, and how quickly the problem is affecting the property. Northern Air troubleshoots urgent heating and cooling failures to determine what has stopped the system from operating correctly and what repair is needed.

Emergency Air Conditioning Repair

A complete loss of cooling during hot weather can quickly make a home or commercial property uncomfortable. We diagnose AC systems that will not start, blow warm air, repeatedly shut down, freeze up, leak, or develop electrical problems. Our air conditioning repair capabilities cover a range of cooling equipment and system failures.

Emergency Heating Repair

When outdoor temperatures drop, a heating failure can become more serious as the building continues losing heat. Northern Air responds to furnaces and other heating systems that will not start, stop producing heat, short cycle, or experience electrical and control failures. Our heating repair team can diagnose the equipment and determine what is preventing normal operation.

Boiler Emergencies

Boiler problems can involve loss of heat, leaks, pressure changes, circulation failures, ignition problems, or malfunctioning controls. Because hydronic systems depend on several components working together, our technicians inspect the equipment before determining which part of the system requires attention. Northern Air provides boiler services for these heating systems.

Heat Pump and Ductless System Failures

Heat pumps and ductless systems provide both heating and cooling, which means a failure can affect comfort during different seasons. We troubleshoot electrical, control, airflow, refrigerant, and equipment problems that interrupt operation. Northern Air services both heat pumps and ductless HVAC systems.

Electrical and Control Problems

Repeated breaker trips, burning odors, unresponsive controls, or equipment that suddenly shuts itself down can indicate an electrical or control problem. Avoid repeatedly resetting equipment that continues to fail. Our technicians can test the HVAC system to locate the source of the malfunction.

What Happens During an Emergency HVAC Service Call?

Emergency service begins with understanding what changed, when the problem started, and any symptoms you noticed before the system failed. Once on site, our technician checks the affected equipment and works through the components most relevant to the problem. Depending on the system, that may include electrical connections, safety controls, ignition components, blower or fan operation, airflow, thermostat communication, refrigerant conditions, or boiler pressure and circulation.

We also look beyond the first obvious symptom. For example, a system that repeatedly shuts down may be responding to an airflow restriction, overheating condition, electrical fault, or failed safety control. Identifying the underlying cause helps us determine what actually needs to be repaired instead of simply restarting the equipment.

Once the problem is diagnosed, we’ll explain what we found and the repair needed to restore operation. After completing an available repair, we test the system again to confirm that it starts, runs, and responds to its controls properly. If a specific replacement component is needed before the repair can be completed, we’ll explain the next steps and what to expect.

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 Our Customers Trust Us With HVAC Emergencies

When an HVAC system suddenly stops working, customers need a team that can troubleshoot different types of equipment and clearly explain what went wrong. Northern Air brings experienced technicians and around-the-clock answering support to urgent heating and cooling problems throughout Fort Collins.

  • 24/7 answering service: Customers have a way to request emergency HVAC service outside regular business hours when heating or cooling problems cannot wait.

  • 14-year average technician tenure: Our technicians average 14 years with Northern Air, bringing substantial hands-on experience to unexpected system failures.

  • NATE-certified technicians: Technical training helps our team diagnose electrical, mechanical, airflow, control, heating, and cooling problems across HVAC equipment.

  • Residential and commercial capabilities: We respond to HVAC emergencies affecting homes as well as businesses and other commercial properties.

  • Experience across different HVAC systems: Our technicians troubleshoot furnaces, air conditioners, boilers, heat pumps, ductless systems, thermostats, and related components.

  • Diagnosis before repair: We test the affected system to identify the source of the failure before recommending corrective work.

Get Help When Your HVAC System Can’t Wait

An unexpected HVAC failure can change the temperature inside your home or business quickly, especially during Fort Collins’ hottest and coldest weather. If your system has stopped heating or cooling, keeps shutting itself down, or is showing signs of a serious equipment problem, Northern Air can diagnose what’s happening and determine the repair needed.

Don’t wait for an urgent HVAC problem to get worse. Request emergency HVAC servicewith Northern Air. Our 24/7 answering service gives you a way to reach us when heating or cooling trouble happens outside normal business hours.

$79.95

Diagnostic Fee Waived With Replacement
Subject to change without notice. Must be mentioned at the time of service.
Expires: Oct 31, 2026

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What Homeowners Are Saying About Us

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.