Business Details
50+ Years
experience
Emergency
services
Your Trusted HVAC Partner in Billings, MT
Founded in 1971 by Dave Harmon Sr., Midwest Heating & Cooling has been delivering dependable HVAC solutions to the Billings community and surrounding areas for over five decades. Our second-generation, family-owned business prioritizes complete customer satisfaction through expert service and cutting-edge technology. With specialized repair and installation capabilities for air conditioners, furnaces, ductless mini-splits, rooftop units, and industrial heating systems, we serve both residential and commercial clients.Our team's 50 years of combined industry experience ensures precision in every project, from routine maintenance to emergency repairs. We exclusively work with trusted brands like Lennox, Goodman, and Modine to guarantee lasting performance. Our 24-hour emergency service and meticulous attention to cleanliness during installations reflect our commitment to exceeding client expectations. This unwavering dedication to quality and reliability has earned us a reputation as the region's most trusted HVAC partner.
Services
Air Conditioner Repair
Furnace Replacement
Ductless Mini-Splits
Rooftop Unit Maintenance
Custom Sheet Metal Work
Humidifier Installations
HVAC System Diagnostics
Emergency Repairs
Ventilation Upgrades
Commercial HVAC Solutions
Details
- Year established: 1971
Highlights and features
- We offer over 50 years of HVAC expertise spanning residential and commercial systems.
- Our second-generation family business guarantees personalized service with proven reliability.
- We provide 24/7 emergency support for urgent heating and cooling needs.
- We specialize in top-brand HVAC installations from Lennox, Goodman, and Modine.
- We complete every job with meticulous cleanliness and minimal disruption to your property.
Services
Air Conditioner Repair
Our certified technicians diagnose and repair all air conditioning systems, from residential window units to commercial rooftop systems. We use advanced diagnostic tools to identify refrigerant leaks, compressor failures, and electrical issues quickly. Our 24-hour emergency service ensures comfort restoration during critical temperature conditions, with same-day availability for urgent repairs.
Furnace Replacement
We install high-efficiency furnaces with proper sizing calculations to maximize energy savings and comfort. Our team handles complete system replacements including ductwork modifications and venting adjustments. We offer financing options for qualified customers and provide detailed energy savings projections when upgrading older systems to modern high-efficiency models.
Commercial HVAC Maintenance
Our preventative maintenance contracts cover multi-unit commercial properties with customized service schedules. We perform comprehensive inspections of rooftop units, split systems, and industrial heating equipment. Our digital service logs track system performance metrics to identify potential issues before equipment failures disrupt business operations.
Ductless Mini-Split Installation
We design and install ductless heating and cooling systems for homes and businesses without existing ductwork. Our engineers create optimal placement plans for indoor air handlers to ensure even temperature distribution. We offer multi-zone systems with smart thermostat controls for customized comfort in specific rooms or additions.
24-Hour Emergency Repair
Our on-call technicians respond to critical HVAC failures at any time of day or night. Emergency service vehicles stocked with common replacement parts enable first-visit fixes for over 90% of service calls. We maintain same-day availability for urgent situations that affect health, safety, or business continuity.
People
Dave Harmon Sr.
Founder
Established Midwest Heating & Cooling in 1971 with a commitment to quality craftsmanship and customer service, building a legacy of trusted HVAC solutions for Montanans.
Pat Harmon
Co-Owner
Carries forward family tradition as second-generation owner, maintaining strict quality standards while expanding service capabilities to meet evolving HVAC technology demands.
Dave Harmon Jr.
Co-Owner
Shares leadership responsibility with Pat, focusing on technical training programs to ensure team proficiency with the latest HVAC systems and installation methodologies.
Questions
What HVAC services do you offer for residential customers?
We provide complete air conditioning and furnace replacement, repair, and maintenance services for homes, including ductless mini-split systems and indoor air quality solutions.
Do you provide emergency HVAC service outside regular hours?
Yes, our 24/7 emergency service responds to urgent heating and cooling failures at any time with fully stocked service vehicles for immediate repairs.
What areas do you serve beyond Billings?
We serve the entire Yellowstone County area including Laurel, Lockwood, and Shepherd, with commercial maintenance contracts covering multiple regional business locations.
Can you service commercial HVAC systems?
Yes, our team specializes in rooftop units, industrial heating systems, and multi-zone commercial HVAC systems with preventative maintenance contracts for business clients.
What brands of HVAC equipment do you work with?
We exclusively install and service Lennox, Goodman, and Modine equipment, with factory-certified technicians trained on the latest models and technology.
Do you offer furnace replacement financing options?
Yes, we provide financing programs through qualified partners for high-efficiency furnace upgrades, with no upfront costs available for approved applicants.
Reviews (5)
G. L.
Dec 13, 2021
Report
I replace the thermocouple yearly in my rental furnace strictly as a precautionary measure. Due to my being Covid positive at the time I called this place to replace it with a new one which Id left there. There was absolutely not a problem with the furnace or the old one.Midwest still managed to charge me $218.00. In 13 years of doing it Ive never spent more than 10 minutes doing it myself and Im far from a professional. Not at all happy.
Nathan Schmitz
Nov 20, 2021
Report
Amazing company! Quick to respond and incredibly helpful. Very reasonable costs too! Highly recommend.
Sheri Lahti
Aug 02, 2021
Report
Positive:Professionalism,Punctuality,Quality,Responsiveness,Value
They made my mom a priority because she did not have AC & with the tripple didget temps they worked quickly to get the new furnace & AC in. Nicest people ever... Polite, respectfull, on time. Wouldn't have any other company
They made my mom a priority because she did not have AC & with the tripple didget temps they worked quickly to get the new furnace & AC in. Nicest people ever... Polite, respectfull, on time. Wouldn't have any other company
John Earley
May 14, 2021
Report
Quality HVAC team. I cannot stress enough how great this team is. On time, on budget, quality products, skilled techs. Fantastic organization. They installed a heating unit 8 years ago and an ac unit this year. There work is exceptional affordable dependable, and most importantly they are an honest local team. Work with this organization. Strong recommendation from me.
Dennis & Jessie Benson
Feb 15, 2021
Report
Midwest Installed a new High Efficiency furnace & AC, & Properly vented two fireplaces in one day at our home! They were professional, friendly, but most of all, new what they were doing and explained every step to the homeowner (us). Price was very competitive. I highly recommend them.
Dennis Benson
Dennis Benson
