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5 Best Furnace Repair Services Longmont, CO

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Written By Callie Marsalisi|Last Updated: February 05, 2024

Access to reliable furnace repair services is important for keeping your home comfortable. In this guide, we'll discuss common problems and show you where to turn for help with both unexpected heating emergencies and regular maintenance. The top heating, ventilation, and air conditioning (HVAC) servicers in Longmont, Colorado, are here to help keep your heating and cooling running smoothly. For those needing a full system replacement, we also have selections for top furnace brands.

5 Best Furnace Repair Companies in Longmont

Service Experts Heating & Air Conditioning Logo

Service Experts Heating & Air Conditioning

Based on 820 customer reviews.

Services Offered

MaintenanceZoning SystemsFurnace RepairIndoor Air QualityFurnace InstallationVentilationAc Installation


  • Reliable customer support
  • Free quote
  • Informative resources
1650 Skyway Dr Unit A, Longmont, CO 303-776-8556 serviceexpertslongmont.com
Blue Valley Heating & Cooling Logo

Blue Valley Heating & Cooling

Based on 436 customer reviews.

Services Offered

DuctlessBoiler RepairFurnace InstallationFurnace RepairAc InstallationMaintenanceVentilationAc RepairEmergency ServicesBoiler Installation


  • Informative resources
  • Clear pricing policy
  • Prompt service delivery
1740 Skyway Dr Unit H, Longmont, CO 303-993-2645 bluevalleyheatingcooling.com
D.N.I. Heating-Cooling-Refrigeration-Plumbing Logo

D.N.I. Heating-Cooling-Refrigeration-Plumbing

Based on 359 customer reviews.

Services Offered

FiltrationEmergency ServicesFurnace RepairAc RepairDuctlessBoiler InstallationFurnace InstallationMaintenanceInspectionRadiant HeatingIndoor Air QualityAc InstallationSmart Home Integration


  • Free quote
  • Informative resources
  • Reliable customer support
14196 Co Rd 7, Mead, CO 720-868-5291 dniheating.com
Tri County Heating & Cooling Logo

Tri County Heating & Cooling

Based on 30 customer reviews.

Services Offered

Ac RepairFurnace InstallationDuctlessAc InstallationFurnace RepairEmergency ServicesMaintenance


  • Clear pricing policy
  • Informative resources
5222 W County Rd 6, Berthoud, CO 970-670-0016 tricountyheatingcooling.com

More Local Hvac Companies

KJ Thomas Mechanical

User Reviews: 4.6/5 

6175 Trevarton Dr
Longmont, CO 80503

Stone Heating & Air

User Reviews: 4.6/5 

16792 Weld CoRd 1
Longmont, CO 80504

Highland Heating & Air, Inc.

User Reviews: 4.5/5 

14286 Mead St
Longmont, CO 80504

IQ Heating & Air Conditioning

User Reviews: 4.7/5 

300 Wark Ave
Berthoud, CO 80513

SAC Mechanical Heating & Air Conditioning

User Reviews: 4.3/5 

105 S Sunset St A
Longmont, CO 80501

IMS Heating & Air, Inc.

User Reviews: 5/5 

5213 Longs Peak Rd A
Berthoud, CO 80513

Ideal Comfort HVAC LLC

User Reviews: 4.5/5 

308 Mountain Vw Rd E
Berthoud, CO 80513

Tri-City Heating & Air Conditioning Inc.

User Reviews: 4.6/5 

127 SW 12th St
Loveland, CO 80537

Eagle Mechanical Inc. Heating & Air Conditioning

User Reviews: 4.7/5 

445 N Denver Ave
Loveland, CO 80537

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.

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Facts about Longmont
Average Min Temp Percentile:29.4%
January Average Min Temp:21.0°F
Climate Zone:Cold
Average Energy Cost:$0.11/kWh
Median Year Houses Built:1989
Average Annual Snowfall:72.6"

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Services Offered by Furnace Repair Companies

Your local furnace repair provider offers a number of services to keep your system working efficiently and effectively. We’ve outlined the most common ones below.

Repair and Maintenance

Timely repairs restore furnace function, extend its life span, and optimize energy efficiency. Furnace repair experts are trained to deal with broken blower motors, malfunctioning thermostats, clogged air filters, and more. Your technician can help diagnose and repair these and other issues to keep your furnace working effectively. A qualified HVAC technician can also handle issues such as damaged heat exchangers, faulty ignitions, possible gas leaks, or malfunctioning thermostats. Furnace repair technicians can also handle routine HVAC maintenance to avoid unnecessary breakdowns. This can involve inspecting and cleaning your furnace, lubricating moving parts, replacing air filters, and generally ensuring all components function properly.


HVAC companies can help you install a new furnace if yours is past repair. An expert can also help with upgrading to a more energy-efficient model, such as a heat pump. First, a skilled technician will assess your home's layout and heating needs. Then, the tech will recommend the best furnace model for your budget and home requirements. HVAC technicians follow safety protocols and standards set by the industry to ensure proper furnace replacement and connection. They also integrate the new system with your existing air ducts and thermostats. Following installation, the company does a final inspection to ensure the furnace runs optimally and efficiently.


If your furnace isn’t turning on, you should schedule a thorough inspection through a furnace repair provider. A technician will examine each component of your furnace to look for potential issues. Inspections usually include checking for any gas or fuel leaks, cleaning and replacing air filters, examining the heat exchanger for cracks or damage, inspecting the burner and ignition system, and testing the thermostat's accuracy. Your technician will check the heating system's efficiency and safety and make any needed adjustments or repairs. Yearly furnace tune-ups help ensure optimal performance and help prevent breakdowns, which promotes a safe living environment during chilly winters.

Emergency Services

If your furnace breaks down on a cold winter night, some furnace repair companies provide emergency repair services to get your system up and running promptly. These services are available around the clock for unexpected malfunctions, breakdowns, and other safety concerns outside regular business hours. Emergency services might cost more than scheduled service, but it's worth it to protect your health. If your furnace fails during extreme weather conditions, and you can't open windows for fresh air, it can lead to serious discomfort and health risks due to decreased indoor air quality.

Factors To Consider When Choosing a Local Longmont Furnace Repair Service

You should consider a number of factors when choosing a local Longmont furnace repair service. We review some key considerations below.

  • Cost: Compare prices among several Longmont furnace repair providers. Choose one with transparent and competitive pricing and a wide scope of services. Stay away from extremely low-cost options, which might compromise workmanship quality or involve subpar replacement parts.
  • Guarantees: Look into the guarantees or warranties provided by the furnace repair provider. A reputable company should back its work with guarantees on parts and repair work. This provides peace of mind knowing you can depend on the service provider if problems arise post-repair.
  • Licensing: Confirm that your furnace repair company possesses all required licenses and certifications. This ensures that its technicians are qualified and trained to safely handle furnace repairs. In Colorado, your HVAC contractor must obtain certification from your local city or municipal government.
  • Qualifications: Look into a furnace repair company's qualifications and experience. Your provider should employ technicians that are well-trained and have experience working with various furnace makes and models. Ask about a company's training policies to ensure they stay on top of the latest industry standard repair techniques.
  • Reputation and reviews: Online reviews and customer testimonials often paint a picture of a provider's reputation and commitment to customer satisfaction. Look for overall positive reviews and experiences, and pay attention to how it addresses complaints and negative feedback.

How Much Does a Furnace Repair Cost?

The total cost of furnace repair will vary depending on factors including the type of HVAC unit you have, the extent of the damage, and the cost of replacement parts. Your final price may vary, but expect to spend an average of $479 on furnace repair. Below, find a list of common repairs and their costs.

  • Broken thermostat: $85–$427
  • Cleaning: $51–$68
  • Cracked heat exchanger: $1,709–$2,991
  • Damaged blower bearings: $26–$128
  • Damaged blower belt: $26–$94
  • Filter change: $34–$128

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Frequently Asked Questions About Furnace Repair in Longmont

How often do I need to have my furnace serviced?

We recommend homeowners service their furnace at least once a year to ensure it runs safely and efficiently. Additionally, a simple maintenance step any homeowner can take is to change the furnace filter every year.

Does a home warranty cover a furnace?

Most home warranties include furnaces, but warranty plans and services vary by provider. Learn more by reading our guide to best home warranties for furnace coverage.

How can I tell whether my furnace needs repairs?

Signs that your furnace needs repairs include strange noises, a yellow pilot light, uneven heating, and increased energy bills. A professional furnace inspection can help determine whether it’s time for a full furnace replacement.

What should I do if my furnace breaks down in the middle of winter?

If your furnace breaks down mid-winter, you might need emergency furnace repair services. Some HVAC repair companies provide emergency services to get your furnace up and running again quickly.

How can I prevent the need for furnace repairs?

Routine furnace maintenance, like cleaning and replacing air filters, can help prevent the need for repairs. Annual HVAC servicing is also critical for catching potential issues before they become major problems.

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.