Furnace Repair

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Furnace Repair in Great Falls, MT That Gets the Heat Back Fast

When your furnace stops working in the middle of a Great Falls winter, you can’t afford to wait around. At Northern Heating & Cooling, we deliver fast, reliable furnace repair in Great Falls, MT—day or night. Our licensed technicians are trained to diagnose and fix heating issues on all major furnace brands, whether it’s an aging unit or a newer high-efficiency model.



If your heater is blowing cold air or refusing to turn on, we’re just around the corner in Black Eagle and ready to respond. We even offer 24-hour emergency furnace repair throughout Cascade County, including Fox Farm, West Hill, Valley View, and beyond.

We Fix Furnaces, Not Sell You a New One You Don’t Need

You don’t want a sales pitch—you want heat. That’s why we focus on accurate diagnostics and honest repair recommendations. Our team won’t push unnecessary upgrades or replacements. We come prepared to fix your system on the spot and get the warmth flowing again.



Need help after hours? Our Emergency Heating Services are available 24/7 across Great Falls and surrounding areas.

What’s Wrong With My Furnace? Here Are the Most Common Issues We Fix

Not sure what’s going on? Here are some of the most frequent furnace problems we see throughout Great Falls during heating season:

Furnace blowing cold air

Could be a clogged filter, thermostat issue, or failed igniter

No heat at all

Often a safety switch, tripped breaker, or motor failure

Strange noises

Banging, squealing, or rattling may signal mechanical wear

Short-cycling

System turns on and off too frequently—can point to airflow or sensor issues

Pilot light problems

For older units, pilot light failures are a common reason for no heat

Thermostat malfunction

Sometimes the issue is with the controls, not the furnace itself

We also troubleshoot related components like ductwork and thermostats. If we find the issue is with your smart thermostat or zoning system, we’ll let you know and help you fix it. Visit our Thermostat Installation & Controls page for more on those solutions.

What to Expect When You Call Northern for Furnace Repair

We make the repair process simple and stress-free. Here’s how it works:

You’ll never get surprise fees or unnecessary recommendations. Just dependable, professional furnace repair backed by decades of experience.

Schedule a visit:

Call anytime or contact us online, even for after-hours emergencies

We inspect and diagnose:

A trained technician evaluates your system and finds the source of the problem

Get a clear, upfront quote:

We explain the issue and your options before we do any work

Fast, expert repair:

Most issues can be resolved on the first visit

System tested before we leave:

We make sure it’s working correctly and safely

Want to Avoid Future Breakdowns? Maintenance Helps.

Most furnace failures we see could’ve been prevented with simple routine service. That’s why we offer seasonal Heating System Tune-Ups to keep your system running efficiently and reduce the risk of costly repairs during the coldest months.



Ask about our maintenance reminders and seasonal service discounts for homeowners in Great Falls, Black Eagle, and surrounding towns.

Furnace Repair FAQs for Great Falls Homeowners

  • Should I repair or replace an old furnace?

    If your furnace is over 15 years old and has had multiple repairs, it may be more cost-effective to replace it. We’ll help you weigh your options and, if needed, guide you to a high-efficiency upgrade on our New Furnace Installation page.

  • How long does a typical furnace repair take?

    Most repairs take under two hours from arrival to completion, depending on the issue and parts needed.

  • How much does furnace repair cost in Great Falls?

    Costs vary by the problem, but we provide upfront pricing with no hidden charges. We’re happy to give an estimate before starting any work.

  • What if the issue is with the thermostat?

    We’ll test your thermostat as part of the service. If it’s the root cause, we can repair or replace it during the same visit.

  • Do you repair furnaces in commercial buildings?

    Yes—we serve both residential and commercial properties. Learn more about Who We Serve across the Great Falls region.

Stay Warm with Great Falls' Most Trusted Furnace Repair Experts

Don’t wait until your house gets dangerously cold. Whether you need emergency furnace repair or want to fix an issue before it becomes a bigger problem, Northern Heating & Cooling is here to help.



Explore our full Heating Services, schedule service, or visit our Great Falls HVAC Services page for more local solutions near you.