We analyzed dozens of HVAC companies in Fort Collins and narrowed the list to the top eight that keep Northern Colorado homes comfortable through hard freezes and hot summers. Our team checked what each company publishes about coverage and reviews, then weighted those findings using the factors below.
How We Ranked Fort Collins HVAC Companies
- Verified Customer Reviews (30%): Published ratings and review volume homeowners can check.
- Whole-Home Service Range (25%): Home systems covered beyond heating and cooling.
- Fort Collins Service Coverage (15%): How firmly the company commits to the city.
- After-Hours Call Answering (15%): Who answers when heat quits at night.
- Maintenance Membership Plan (15%): A published plan covering seasonal tune-ups.
The Top 8 HVAC Companies in Fort Collins (2026)
Ratings reflect figures each company published during research.
Fort Collins HVAC Companies: Descriptions and Reviews
1. Lion Home Service
Lion Home Service runs a Fort Collins office on McClelland Drive and has served Northern Colorado homeowners since 2012. The team that replaces a furnace in January can clear a sewer line in February, so one number covers the whole house.
- Verified Customer Reviews: 4.7 stars across 5,294 Google reviews.
- Whole-Home Service Range: Six service lines, heating through septic.
- Fort Collins Service Coverage: Office on McClelland Drive.
- After-Hours Call Answering: Calls answered 24/7, field service generally 7 a.m. to 7 p.m.
- Maintenance Membership Plan: Lion Care Club starts at $199 yearly.
Customer Review Summary
Fort Collins homeowners consistently praise Lion’s speed, with one noting the team “had somebody at my house the very next day when everyone else had a 3-4 day wait.” Common feedback includes appreciation for full-system replacements, since one owner “could not be more happy.”
2. One Hour Heating & Air of Loveland
One Hour Heating & Air of Loveland carries the strongest published rating here and maintains a dedicated Fort Collins page. Its franchise model backs technicians with a national on-time guarantee and a warranty on craftsmanship up to two years.
- Verified Customer Reviews: 4.8 stars across 3,027 reviews.
- Whole-Home Service Range: Heating and cooling only.
- Fort Collins Service Coverage: Dedicated Fort Collins page.
- After-Hours Call Answering: Calls taken 24 hours a day.
- Maintenance Membership Plan: Total Home Care, $19.99 monthly.
Customer Review Summary
Customers consistently praise individual technicians, with one writing that “David was the BEST technician by far.” Common feedback includes appreciation for a tech who arrived “very friendly, professional, and knowledgeable.”
3. Christopher’s Heating and Cooling
Christopher’s Heating and Cooling is a third-generation family company based in Windsor and publishes separate Fort Collins pages for furnace and cooling work. Its technicians handle boilers and radiant heat, so owners of older hydronic homes get real depth.
- Verified Customer Reviews: Testimonials only, no aggregate.
- Whole-Home Service Range: Heating and cooling only.
- Fort Collins Service Coverage: Dedicated Fort Collins page.
- After-Hours Call Answering: Calls taken 24 hours a day.
- Maintenance Membership Plan: American Made Membership, $16 monthly.
Customer Review Summary
Northern Colorado customers consistently praise the follow-through, since the crew “were timely and professional and we were completely satisfied.” Common feedback includes appreciation for speed, since “he came out the same day and replaced my water heater.”
4. Greeley Furnace Heating & Air
Greeley Furnace Heating & Air has served Weld and Larimer County since 1958, the longest run here. Its technicians install hydronic boilers and radiant floor heat, and Fort Collins falls inside that county footprint without a dedicated page.
- Verified Customer Reviews: Testimonials only, no aggregate.
- Whole-Home Service Range: Heating and cooling only.
- Fort Collins Service Coverage: Larimer County, no city page.
- After-Hours Call Answering: Published emergency line.
- Maintenance Membership Plan: Unnamed plan, 10% off repairs.
Customer Review Summary
Greeley-area homeowners consistently praise technician conduct, describing “very professional and courteous individuals who did a wonderful job.” Common feedback includes appreciation for punctuality, since “they come on time and techs know what they are doing.”
5. Mountain States Mechanical
Mountain States Mechanical serves Fort Collins from Windsor and publishes a page naming neighborhoods near CSU and Old Town. Its Peak Plan reserves after-hours response for contract customers only.
- Verified Customer Reviews: 4.9 stars self-reported, 127 reviews.
- Whole-Home Service Range: Heating and cooling only.
- Fort Collins Service Coverage: Dedicated Fort Collins page.
- After-Hours Call Answering: Contract customers only.
- Maintenance Membership Plan: Peak Plan from $19 monthly.
Customer Review Summary
A Fort Collins customer opened a review explaining that “our AC went out on the hottest day of the year.” Another said the maintenance program “has been worth every penny.” Both testimonials sit on the company’s own site.
6. Blue Valley Heating & Cooling
Blue Valley Heating & Cooling has installed HVAC systems along the Front Range for more than 30 years and specializes in geothermal design. It reaches Fort Collins for geothermal work, so a furnace call may route elsewhere.
- Verified Customer Reviews: 4.0 stars, 4 published testimonials.
- Whole-Home Service Range: Heating and cooling only.
- Fort Collins Service Coverage: Geothermal projects only.
- After-Hours Call Answering: Published 24-hour emergency line.
- Maintenance Membership Plan: No published plan.
Customer Review Summary
Front Range customers consistently praise responsiveness, with one calling the company “fast, responsive, and reasonably priced.” Common feedback includes appreciation for consistency, with another customer calling the team “very friendly and dependable.”
7. Valley Heating, Air and Refrigeration
Valley Heating, Air and Refrigeration launched in Windsor in 2011 and splits its work between residential heating and commercial refrigeration. Homeowners who also run a walk-in cooler get unusual value.
- Verified Customer Reviews: Testimonials only, no aggregate.
- Whole-Home Service Range: Heating and cooling only.
- Fort Collins Service Coverage: Northern Colorado, no city list.
- After-Hours Call Answering: Published for boiler repairs only.
- Maintenance Membership Plan: No published plan.
Customer Review Summary
Windsor-area homeowners consistently praise how quickly the company moves, since “they responded immediately and serviced us next day.” Common feedback includes appreciation for a tidy install, with one owner noting, “my house didn’t look disturbed at all.”
8. Epic Heating and Air Conditioning
Epic Heating and Air Conditioning names Fort Collins in its service area and brings more than 30 years of installation experience to replacements. Homeowners facing a nighttime breakdown should look elsewhere, since Epic publishes no emergency line.
- Verified Customer Reviews: No published reviews or testimonials.
- Whole-Home Service Range: Heating and cooling only.
- Fort Collins Service Coverage: Named in its service area.
- After-Hours Call Answering: No published line.
- Maintenance Membership Plan: No published plan.
Customer Review Summary
Epic publishes no customer reviews on its website, so homeowners comparing options find no public feedback to weigh against the seven companies above.
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Top Fort Collins HVAC Companies for Boiler and Radiant Heat Service
To request a PDF copy of this report, contact the team online.
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