853 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Farmington: Levine & Sons Plumbing, Heating & AC, CR Score 65/100; 4.8★ from 5,322 Google reviews; open 24/7.
Best for emergencies (open 24/7): Randazzo Heating & Cooling, posts 24/7 hours; ranked #2 of 853.
Most-reviewed: Thornton & Grooms, 15,592 Google reviews at 4.9★, the most of 853 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
853 Farmington HVAC contractors are ranked here by CR Score, from ten published factors. 262 are open 24/7, 557 open Saturdays and 421 open Sundays, based on posted hours. The median Google rating is 4.8★ across 853 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Levine & Sons Plumbing, Heating & AC | 65 | 4.8★ (5,322) | Southfield, 5 mi away | 24/7 | Overall |
| 2 | Randazzo Heating & Cooling | 65 | 4.9★ (1,580) | Farmington Hills, 2 mi away | 24/7 | Emergencies |
| 3 | Thornton & Grooms | 64 | 4.9★ (15,592) | Farmington Hills, 2 mi away | Sat · Evenings | Most reviews |
| 4 | Ehlers Heating & Cooling | 64 | 4.9★ (1,199) | Livonia, 2 mi away | 24/7 | — |
| 5 | Robin Aire Service Company | 64 | 4.9★ (2,591) | Wixom, 8 mi away | 24/7 | — |
| 6 | Crain Heating and Cooling | 63 | 4.9★ (1,422) | Livonia, 6 mi away | 24/7 | — |
| 7 | Mrs. Michael Plumbers, Electricians, and HVAC Technicians | 63 | 4.8★ (565) | Farmington Hills, 2 mi away | 24/7 | — |
| 8 | Hartford & Ratliff Co Inc | 63 | 4.8★ (347) | Farmington | 24/7 | — |
| 9 | Matheson Heating Air Plumbing | 63 | 4.9★ (1,350) | Milford, 10 mi away | 24/7 | — |
| 10 | Harriman Heating & Air Conditioning | 63 | 4.8★ (1,520) | Farmington Hills, 2 mi away | Sat · Sun · Evenings | — |
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: 4.8★ from 5,322 Google reviews, listed on Google as “HVAC contractor”.
Based in Farmington Hills, 2 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 1,580 Google reviews, listed on Google as “HVAC contractor”.
Based in Farmington Hills, 2 mi away
Ranked #3 because of its Google rating and review volume: 4.9★ from 15,592 Google reviews, the most in Farmington.
Based in Livonia, 2 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 1,199 Google reviews, listed on Google as “HVAC contractor”.
Based in Wixom, 8 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 2,591 Google reviews, listed on Google as “HVAC contractor”.
Based in Livonia, 6 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 1,422 Google reviews, listed on Google as “HVAC contractor”.
Based in Farmington Hills, 2 mi away
Ranked #7 because of its Google rating and trade focus: 4.8★ from 565 Google reviews, listed on Google as “HVAC contractor”.
Based in Farmington
Ranked #8 because of its Google rating and trade focus: 4.8★ from 347 Google reviews, listed on Google as “HVAC contractor”.
Based in Milford, 10 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 1,350 Google reviews, listed on Google as “HVAC contractor”.
Based in Farmington Hills, 2 mi away
Ranked #10 because of its Google rating and trade focus: 4.8★ from 1,520 Google reviews, listed on Google as “HVAC contractor”.
Based in Farmington Hills, 3 mi away
Ranked #11 because of its Google rating and trade focus: 4.9★ from 1,053 Google reviews, listed on Google as “HVAC contractor”.
Based in Auburn Hills, 12 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 1,067 Google reviews, listed on Google as “HVAC contractor”.
Based in Plymouth, 9 mi away
Ranked #13 because of its Google rating and trade focus: 4.8★ from 4,390 Google reviews, listed on Google as “HVAC contractor”.
Based in Auburn Hills, 18 mi away
Ranked #14 because of its Google rating and trade focus: 4.8★ from 6,170 Google reviews, listed on Google as “HVAC contractor”.
Based in Farmington Hills, 4 mi away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 261 Google reviews, listed on Google as “HVAC contractor”.
Based in Novi, 6 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 270 Google reviews, listed on Google as “HVAC contractor”.
Based in Livonia, 6 mi away
Ranked #17 because of its Google rating and trade focus: 4.8★ from 474 Google reviews, listed on Google as “HVAC contractor”.
Based in Auburn Hills, 11 mi away
Ranked #18 because of its Google rating and trade focus: 4.9★ from 681 Google reviews, listed on Google as “HVAC contractor”.
Based in Dearborn, 8 mi away
Ranked #19 because of its Google rating and trade focus: 4.7★ from 851 Google reviews, listed on Google as “HVAC contractor”.
Based in Ann Arbor, 15 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 746 Google reviews, listed on Google as “HVAC contractor”.
Based in Warren, 15 mi away
Ranked #21 because of its Google rating and trade focus: 4.7★ from 3,170 Google reviews, listed on Google as “HVAC contractor”.
Based in Farmington
Ranked #22 because of its Google rating and trade focus: 5.0★ from 55 Google reviews, listed on Google as “Heating contractor”.
Based in Auburn Hills, 12 mi away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 1,841 Google reviews, listed on Google as “HVAC contractor”.
Based in Livonia, 7 mi away
Ranked #24 because of its Google rating and trade focus: 4.8★ from 318 Google reviews, listed on Google as “HVAC contractor”.
Based in Farmington Hills, 8 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 181 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 853 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 |
|---|---|---|
| Absotemp Climate Control Inc. | 4.6★ (191) | 8 mi |
| Aladdin Heating & Cooling | 4.7★ (555) | 16 mi |
| CK Mechanical Heating and Cooling Inc. | 4.8★ (863) | 19 mi |
| D&D AC and Furnace Heating Repair | 5.0★ (2) | 8 mi |
| Duffy's Heating & Air Conditioning | 5.0★ (2) | 3 mi |
| Edwards Plumbing & Heating | 4.3★ (2,053) | 13 mi |
| Ehlers Heating & Cooling | 5.0★ (2) | 8 mi |
| Heating & Cooling | 5.0★ (2) | 10 mi |
| Joe's Heating | 4.5★ (2) | 5 mi |
| JR Heating and Cooling | 5.0★ (2) | 1 mi |
| KENS HOME CREATIONS | 5.0★ (2) | 6 mi |
| Kotz Heating, Cooling and Plumbing | 4.9★ (5,035) | 16 mi |
| On-Time Heating & Air Conditioning Services | 1.0★ (2) | 8 mi |
| One Hour Heating & Air Conditioning | 4.5★ (122) | 6 mi |
| Quality Aire Systems | 5.0★ (2) | 9 mi |
| R & L Heating and Cooling | 4.8★ (702) | 18 mi |
| Sky Heating and Cooling LLC | 5.0★ (74) | 9 mi |
| Supreme HVAC Team LLC | 5.0★ (1) | In Farmington |
| Will's Heating and Cooling LLC | 5.0★ (2) | 8 mi |
| Zilka Heating and Cooling | 4.8★ (260) | 10 mi |
National price ranges in USD, not adjusted for Farmington. 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 Michigan, Michigan LARA, Bureau of Construction Codes licenses Mechanical contractor licenses.
No chip usually means we have not matched a state record yet. Check the lookup yourself before you hire.
Guide checked October 2026. How we verify licenses
In Michigan, 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 853 Farmington 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 Farmington 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 |