Gill's Heating & Cooling, Inc.
Gill's Heating & Cooling, Inc.
Gill's Heating & Cooling provides HVAC installation, service and repairs for residential and commercial customers in and near Great Falls. Its Bryant installation options include traditional ducted systems, ductless units and commercial units.
Last Updated September 28, 2026.
Business Highlights
- Gill's Heating & Cooling has been locally owned and operated since 1992.
- Its team is fully licensed and insured.
- Its technicians are highly trained and experienced in heating and cooling.
- It offers a 100% satisfaction guarantee.
Service Area
Great Falls, Black Eagle, Ulm, Simms, Cascade, Wolf Creek, Sun Prairie, Stockett, Fort Benton, Lincoln, Belt, Carter, Fairfield, Choteau, Loma and Geraldine.
Featured Local Business
Gill's Heating & Cooling, Inc. is one of 6 HVAC companies ProsGrade lists in Great Falls, Montana.
4 services listed, including Heating, Cooling and Ductless. Open weekdays, closed on weekends. Rated 5.0 from 66 reviews.
- Verified listing details
- Service information
- Customer review signals
- Photo gallery
- Public contact information
- Published local profile
How This Business Compares
How Gill's Heating & Cooling, Inc. compares with the other 5 HVAC companies on ProsGrade in Great Falls, using public Google ratings and review counts.
- Ranks in the top quarter of the 6 Great Falls HVAC companies on ProsGrade by Google rating and review volume.
- Rated 5.0 on Google, at or above the 4.8 average of other Great Falls HVAC companies on ProsGrade.
- Has more Google reviews (66) than 4 of the 5 other Great Falls HVAC companies on ProsGrade.
- One of 3 Great Falls HVAC companies on ProsGrade rated 4.7 or higher from at least 10 reviews.
Services Covered
4 services- HeatingFurnaces: repairs, replacements, new installations and tune-ups
- CoolingAir conditioners: repairs, replacements, new installations and tune-ups
- DuctlessMini-split AC installation, repair and tune-ups
- Indoor air qualityHRV and ERV installations
Reviews
What customers say
Customers praise the quality of the work and courteous service. A mini-split customer appreciated the system explanation and spotless cleanup, while a customer describing a complex installation praised the team's communication and efforts to get it running.
Customer Reviews
Lisa Benash
It was very nice experience. Randy was very polite and respectful and did an awesome job. Thank you.
Thomas Barrett
I’ve had Gill’s work on three separate projects over the last four years. Their prices are fair. Their work is excellent and their customer service is better. You cannot go wrong with them. I highly recommend.
James Baguley
Charles Blevins
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Frequently Asked Questions
Does Gill's Heating & Cooling offer heat-emergency service at any hour?
A technician is available 24/7 for heat emergencies.
Can Gill's Heating & Cooling service HVAC equipment from any brand?
Gill's can service, maintain and install every brand of heating and air-conditioning equipment.
Does Gill's Heating & Cooling offer free estimates?
It offers free estimates.






