242 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Greeley: Origin Plumbing Heating Cooling Electrical, CR Score 65/100; 5.0★ from 384 Google reviews; open 24/7.
Best for emergencies (open 24/7): A-1 Heating and Air Conditioning Services, posts 24/7 hours; ranked #3 of 242.
Most-reviewed: Allen Service, 6,401 Google reviews at 4.8★, the most of 242 ranked; ranked #7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
242 Greeley HVAC contractors are ranked here by CR Score, from ten published factors. 95 are open 24/7, 138 open Saturdays and 119 open Sundays, based on posted hours. The median Google rating is 4.9★ across 242 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Origin Plumbing Heating Cooling Electrical | 65 | 5.0★ (384) | Greeley | 24/7 | Overall |
| 2 | McCormick Heating & Cooling | 64 | 5.0★ (896) | Greeley | Sat · Sun · Evenings | — |
| 3 | A-1 Heating and Air Conditioning Services | 64 | 4.9★ (301) | Greeley | 24/7 | Emergencies |
| 4 | Lemons Heating & Cooling | 64 | 4.9★ (298) | Greeley | 24/7 | — |
| 5 | Limelight Services | 63 | 5.0★ (1,508) | Johnstown, 14 mi away | 24/7 | — |
| 6 | De Leon Heating and Air llc | 63 | 5.0★ (108) | Greeley | 24/7 | — |
| 7 | Allen Service | 62 | 4.8★ (6,401) | Fort Collins, 21 mi away | 24/7 | Most reviews |
| 8 | East to West Heating and Air Conditioning LLC | 62 | 4.9★ (105) | Greeley | 24/7 | — |
| 9 | Lion Home Service | 62 | 4.7★ (5,912) | Fort Collins, 19 mi away | 24/7 | — |
| 10 | Fort Collins Heating & Air Conditioning and Plumbing | 62 | 4.9★ (3,171) | Fort Collins, 21 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 because of its Google rating and trade focus: 5.0★ from 384 Google reviews, listed on Google as “HVAC contractor”.
Based in Greeley
Ranked #2 because of its Google rating and trade focus: 5.0★ from 896 Google reviews, listed on Google as “HVAC contractor”.
Based in Greeley
Ranked #3 because of its Google rating and trade focus: 4.9★ from 301 Google reviews, listed on Google as “HVAC contractor”.
Based in Greeley
Ranked #4 because of its Google rating and trade focus: 4.9★ from 298 Google reviews, listed on Google as “HVAC contractor”.
Based in Johnstown, 14 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 1,508 Google reviews, listed on Google as “HVAC contractor”.
Based in Greeley
Ranked #6 because of its Google rating and trade focus: 5.0★ from 108 Google reviews, listed on Google as “HVAC contractor”.
Based in Fort Collins, 21 mi away
Ranked #7 because of its Google rating and review volume: 4.8★ from 6,401 Google reviews, the most in Greeley.
Based in Greeley
Ranked #8 because of its Google rating and trade focus: 4.9★ from 105 Google reviews, listed on Google as “HVAC contractor”.
Based in Fort Collins, 19 mi away
Ranked #9 because of its Google rating and trade focus: 4.7★ from 5,912 Google reviews, listed on Google as “HVAC contractor”.
Based in Fort Collins, 21 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 3,171 Google reviews, listed on Google as “HVAC contractor”.
Based in Berthoud, 16 mi away
Ranked #11 because of its Google rating and trade focus: 4.8★ from 1,518 Google reviews, listed on Google as “Heating contractor”.
Based in Loveland, 19 mi away
Ranked #12 because of its Google rating and trade focus: 4.8★ from 2,777 Google reviews, listed on Google as “HVAC contractor”.
Based in Loveland, 19 mi away
Ranked #13 because of its Google rating and trade focus: 4.8★ from 2,466 Google reviews, listed on Google as “HVAC contractor”.
Based in Windsor, 11 mi away
Ranked #14 because of its Google rating and trade focus: 4.9★ from 292 Google reviews, listed on Google as “HVAC contractor”.
Based in Loveland, 15 mi away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 512 Google reviews, listed on Google as “HVAC contractor”.
Based in Windsor, 10 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 402 Google reviews, listed on Google as “HVAC contractor”.
Based in Fort Collins, 19 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 426 Google reviews, listed on Google as “HVAC contractor”.
Based in Loveland, 20 mi away
Ranked #18 because of its Google rating and trade focus: 4.8★ from 1,106 Google reviews, listed on Google as “HVAC contractor”.
Based in Greeley
Ranked #19 because of its Google rating and trade focus: 4.9★ from 24 Google reviews, listed on Google as “HVAC contractor”.
Based in Fort Collins, 20 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 486 Google reviews, listed on Google as “HVAC contractor”.
Based in Berthoud, 10 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 96 Google reviews, listed on Google as “HVAC contractor”.
Based in Fort Collins, 18 mi away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 451 Google reviews, listed on Google as “HVAC contractor”.
Based in Frederick, 19 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 266 Google reviews, listed on Google as “HVAC contractor”.
Based in Fort Collins, 21 mi away
Ranked #24 because of its Google rating and trade focus: 4.9★ from 530 Google reviews, listed on Google as “HVAC contractor”.
Based in Berthoud, 16 mi away
Ranked #25 because of its Google rating and trade focus: 4.9★ from 229 Google reviews, listed on Google as “HVAC contractor”.
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 242 ranked HVAC contractors here; the rest are on their profiles.
20 more HVAC contractors within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| 4Therm Mechanical, Inc. | 5.0★ (2) | 19 mi |
| Air Comfort Complete Inc | 4.9★ (47) | 18 mi |
| Benjamin Franklin Plumbing | 1.7★ (45) | In Greeley |
| Colorado Proud Heating and Cooling | 5.0★ (2) | 20 mi |
| Forrest Mechanical LLC | 5.0★ (11) | 7 mi |
| G&T Heating and Cooling LLC | In Greeley | |
| Greeley Plumbing & Drain | 4.7★ (25) | In Greeley |
| HALO Heating and Air | 5.0★ (64) | 18 mi |
| HAWF Mechanical | 5.0★ (2) | 10 mi |
| Home Services Company | 5.0★ (11) | 9 mi |
| Lion Home Service Greeley | In Greeley | |
| Lion Rooter & Sewer | In Greeley | |
| Manny's Quality Plumbing Heating & Air | In Greeley | |
| Mitchells Plumbing & Heating | In Greeley | |
| MONTY'S HEATING AND AIR | 5.0★ (2) | 19 mi |
| Polar Bear Plumbing Heating & Air | 5.0★ (541) | 10 mi |
| Stoney's Plumbing & Heating, LLC | 5.0★ (2) | 5 mi |
| Top-Notch Plumbing, Heating & Air | In Greeley | |
| Unity Heating and Cooling LLC | 5.0★ (1) | In Greeley |
| Your Comfort Heating & Cooling | 5.0★ (87) | 22 mi |
National price ranges in USD, not adjusted for Greeley. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| AC replacement | $3,887 | $5,978 | $8,073 | Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range | October 2026 |
| Furnace replacement | $2,823 | $4,814 | $6,896 | Per system, installed; typical range of customer-reported jobs. US national range | October 2026 |
In Colorado, furnace and heat pump calls peak in the coldest winter weeks and AC calls in summer heat waves. Spring and fall are the easiest times to book maintenance or a replacement.
We scored 242 Greeley HVAC contractors on ten factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed October 22, 2026.
Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In Greeley data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |