We pulled verified Google Business Profile data for HVAC companies across Weld and Larimer counties. Each profile gave us a review count and an average rating, plus posted service hours. We checked pricing claims against actual customer reviews, not marketing copy. The eight companies below scored highest against the factors explained next.
Ranking Algorithm
- 24/7 Emergency Response (30%): The company dispatches technicians at any hour, including holidays.
- Multi-Trade Service (25%): The company repairs HVAC systems, plumbing, and electrical wiring.
- Upfront Pricing (25%): The company states the total cost before work starts.
- Verified Customer Rating (20%): The company holds a strong average score across public reviews.
Top HVAC Companies Serving Greeley in 2026
This table compares each company against the factors above.
Best HVAC Companies in Greeley, CO: Company Reviews
1. Lion Home Service
Lion Home Service answers calls in Greeley around the clock. Its technicians handle furnace repair and electrical inspections without a second contractor. Reviewers describe a team that explains the repair first and provides a fixed-price quote.
- 24/7 Emergency Response: Answers calls any hour, any day.
- Multi-Trade Service: Repairs heating, cooling, plumbing, and electrical systems.
- Upfront Pricing: Quotes the full cost before work begins.
- Verified Customer Rating: Holds a 4.6 average across 295 public reviews.
Customer Review Summary
Homeowners praise Lion Home Service’s “up-front pricing and full explanations” during repairs. Feedback highlights a team that stays “quick to respond” when a system fails.
2. Limelight Services
Limelight Services covers Johnstown with plumbing, electrical, and HVAC crews under one company. Its technicians handle gas line installation and HVAC inspections on the same visit. Reviewers mention consistent professionalism across every trade.
- 24/7 Emergency Response: Answers calls any hour, any day.
- Multi-Trade Service: Repairs heating, cooling, plumbing, and electrical systems.
- Upfront Pricing: Not publicly stated.
- Verified Customer Rating: Holds a 5.0 average across 1,666 public reviews.
Customer Review Summary
Customers praise Limelight Services for staff who “clearly explained our options without any pressure.” Feedback highlights technicians who go “above and beyond” on multi-trade jobs.
3. Fort Collins Heating & Air Conditioning
Fort Collins Heating & Air Conditioning runs a large team built for high-volume installation work across Larimer County. The company adds plumbing inspections beyond its core HVAC service but skips electrical work. Reviewers note technicians who cover rebate programs before recommending a system.
- 24/7 Emergency Response: Answers calls any hour, any day.
- Multi-Trade Service: Repairs HVAC systems and handles plumbing; does not offer electrical work.
- Upfront Pricing: Not publicly stated.
- Verified Customer Rating: Holds a 4.9 average across 3,932 public reviews.
Customer Review Summary
Customers call Fort Collins Heating & Air Conditioning a “top tier company” in the area. Feedback highlights a process that feels “educational and professional” from quote to install.
4. M and M Heating, Cooling, Plumbing and Electrical
M and M Heating, Cooling, Plumbing and Electrical covers HVAC, plumbing, and electrical work under a single call in Longmont. Technicians send photos and a written report after each visit. Reviewers point to the pricing breakdown as a reason they call back.
- 24/7 Emergency Response: Answers calls any hour, any day.
- Multi-Trade Service: Repairs heating, cooling, plumbing, and electrical systems.
- Upfront Pricing: Emails a detailed report with transparent pricing after each visit.
- Verified Customer Rating: Holds a 4.9 average across 3,536 public reviews.
Customer Review Summary
Customers praise M and M for its “transparent pricing” and detailed after-visit reports. Feedback highlights technicians who “took the time to explain everything” before starting repairs.
5. One Hour Heating & Air Conditioning of Loveland
One Hour Heating & Air Conditioning of Loveland belongs to a national franchise focused only on HVAC repair and installation. Reviewers note pricing that runs higher than smaller local shops, though most call the work fair for the cost.
- 24/7 Emergency Response: Answers calls any hour, any day.
- Multi-Trade Service: Repairs HVAC systems only; does not offer plumbing or electrical work.
- Upfront Pricing: Not publicly stated.
- Verified Customer Rating: Holds a 4.8 average across 2,985 public reviews.
Customer Review Summary
Customers praise One Hour Heating & Air Conditioning for staying “informative and helpful” during every visit. Feedback agrees pricing stays “fair for the work that they do.”
6. Swan Plumbing Heating & Air of Loveland
Swan Plumbing Heating & Air of Loveland pairs plumbing and HVAC service under one company, from tankless water heater swaps to full furnace installs. Most reviews describe knowledgeable sales staff and respectful installation crews.
- 24/7 Emergency Response: Answers calls any hour, any day.
- Multi-Trade Service: Repairs HVAC systems and handles plumbing; does not offer electrical work.
- Upfront Pricing: Not publicly stated.
- Verified Customer Rating: Holds a 4.8 average across 2,660 public reviews.
Customer Review Summary
Customers praise Swan’s installation teams as “knowledgeable, straightforward” throughout the sales process. Feedback highlights crews who stay “professional, punctual, and respectful” during installation.
7. Welzig Heating, Air, Plumbing & Electric
Welzig Heating, Air, Plumbing & Electric runs HVAC, plumbing, and electrical crews out of Longmont. Technicians catch issues other contractors miss, including duct problems flagged during a routine inspection. Most long-time customers describe the service as consistently positive.
- 24/7 Emergency Response: Answers calls any hour, any day.
- Multi-Trade Service: Repairs heating, cooling, plumbing, and electrical systems.
- Upfront Pricing: Not publicly stated.
- Verified Customer Rating: Holds a 4.9 average across 1,466 public reviews.
Customer Review Summary
Customers praise Welzig for technicians who “did not try to up-sell” unnecessary repairs. Feedback highlights a team that “responded right away” on weekend emergencies.
8. American Air Heating & Air Conditioning
American Air Heating & Air Conditioning serves Windsor with a small installation team. The company built its reputation on beating competitor quotes, backed by manufacturer rebates. Its office closes weeknights and stays closed weekends.
- 24/7 Emergency Response: Operates Monday through Friday, 7 a.m. to 4 p.m.; closed weekends.
- Multi-Trade Service: Repairs HVAC systems only; does not offer plumbing or electrical work.
- Upfront Pricing: Not publicly stated.
- Verified Customer Rating: Holds a 5.0 average across 558 public reviews.
Customer Review Summary
Customers praise American Air for pricing that “blew the competition away” during the quote process. Feedback highlights “honest, upfront communication” from a small, local team.
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Companies With Electrical Add-On Work
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