328 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Ann Arbor: Breyer's Heating & Air Conditioning, CR Score 65/100; 5.0★ from 746 Google reviews; open 24/7.
Best for emergencies (open 24/7): Mrs. Michael Plumbers, Electricians, and HVAC Technicians, posts 24/7 hours; ranked #2 of 328.
Most-reviewed: Thornton & Grooms, 15,592 Google reviews at 4.9★, the most of 328 ranked; ranked #17.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
328 Ann Arbor HVAC contractors are ranked here by CR Score, from ten published factors. 102 are open 24/7, 196 open Saturdays and 148 open Sundays, based on posted hours. The median Google rating is 4.8★ across 328 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Breyer's Heating & Air Conditioning | 65 | 5.0★ (746) | Ann Arbor | 24/7 | Overall |
| 2 | Mrs. Michael Plumbers, Electricians, and HVAC Technicians | 64 | 4.8★ (926) | Ann Arbor | 24/7 | Emergencies |
| 3 | Indoor Comfort Heating & Cooling | 64 | 4.9★ (538) | Ann Arbor | 24/7 | — |
| 4 | Randazzo | 62 | 5.0★ (364) | Ypsilanti, 8 mi away | 24/7 | — |
| 5 | Comfort Mechanical Heating and Cooling | 62 | 4.9★ (112) | Ann Arbor | 24/7 | — |
| 6 | Trusted Heating & Cooling Solutions | 61 | 4.9★ (92) | Ann Arbor | 24/7 | — |
| 7 | Haley Mechanical - Ann Arbor | 61 | 4.8★ (119) | Ann Arbor | 24/7 | — |
| 8 | Lakeside Service Co. | 61 | 4.9★ (2,337) | Brighton, 18 mi away | 24/7 | — |
| 9 | Robin Aire Service Company | 61 | 4.9★ (2,591) | Wixom, 19 mi away | 24/7 | — |
| 10 | Fahrenheit Heating and Cooling | 61 | 4.9★ (68) | Ann Arbor | 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 746 Google reviews, listed on Google as “HVAC contractor”.
Based in Ann Arbor
Ranked #2 because of its Google rating and trade focus: 4.8★ from 926 Google reviews, listed on Google as “HVAC contractor”.
Based in Ann Arbor
Ranked #3 because of its Google rating and trade focus: 4.9★ from 538 Google reviews, listed on Google as “HVAC contractor”.
Based in Ypsilanti, 8 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 364 Google reviews, listed on Google as “HVAC contractor”.
Based in Ann Arbor
Ranked #5 because of its Google rating and trade focus: 4.9★ from 112 Google reviews, listed on Google as “HVAC contractor”.
Based in Ann Arbor
Ranked #6 because of its Google rating and trade focus: 4.9★ from 92 Google reviews, listed on Google as “HVAC contractor”.
Based in Ann Arbor
Ranked #7 because of its Google rating and trade focus: 4.8★ from 119 Google reviews, listed on Google as “HVAC contractor”.
Based in Brighton, 18 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 2,337 Google reviews, listed on Google as “HVAC contractor”.
Based in Wixom, 19 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 2,591 Google reviews, listed on Google as “HVAC contractor”.
Based in Ann Arbor
Ranked #10 because of its Google rating and trade focus: 4.9★ from 68 Google reviews, listed on Google as “HVAC contractor”.
Based in Ann Arbor
Ranked #11 because of its Google rating and trade focus: 4.9★ from 216 Google reviews, listed on Google as “HVAC contractor”.
Based in Ann Arbor
Ranked #12 because of its Google rating and trade focus: 5.0★ from 52 Google reviews, listed on Google as “HVAC contractor”.
Based in Livonia, 18 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 1,422 Google reviews, listed on Google as “HVAC contractor”.
Based in Plymouth, 16 mi away
Ranked #14 because of its Google rating and trade focus: 4.8★ from 4,390 Google reviews, listed on Google as “HVAC contractor”.
Based in Ypsilanti, 9 mi away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 211 Google reviews, listed on Google as “HVAC contractor”.
Based in Farmington Hills, 21 mi away
Ranked #16 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, 21 mi away
Ranked #17 because of its Google rating and review volume: 4.9★ from 15,592 Google reviews, the most in Ann Arbor.
Based in Ann Arbor
Ranked #18 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “HVAC contractor”.
Based in Ann Arbor
Ranked #19 because of its Google rating and trade focus: 4.9★ from 66 Google reviews, listed on Google as “HVAC contractor”.
Based in Livonia, 23 mi away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 1,199 Google reviews, listed on Google as “HVAC contractor”.
Based in Ann Arbor
Ranked #21 because of its Google rating and trade focus: 4.8★ from 22 Google reviews, listed on Google as “HVAC contractor”.
Based in Brighton, 17 mi away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 374 Google reviews, listed on Google as “HVAC contractor”.
Based in Brighton, 12 mi away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 138 Google reviews, listed on Google as “HVAC contractor”.
Based in Westland, 17 mi away
Ranked #24 because of its Google rating and trade focus: 4.7★ from 820 Google reviews, listed on Google as “HVAC contractor”.
Based in Ann Arbor
Ranked #25 because of its Google rating and trade focus: 4.9★ from 16 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 328 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 |
|---|---|---|
| Adair Heating and Cooling | 5.0★ (50) | 17 mi |
| Air Conditioning Co The | In Ann Arbor | |
| Al's Water Heater Sales & Services | 5.0★ (979) | In Ann Arbor |
| Alltemp Heating & Cooling | 5.0★ (2) | 9 mi |
| AnSight | In Ann Arbor | |
| CMR Mechancial | 5.0★ (1) | In Ann Arbor |
| Deangelis Heating & Cooling | In Ann Arbor | |
| Edwards Plumbing & Heating | 4.3★ (2,053) | 24 mi |
| Hartford & Ratliff Co Inc | 4.8★ (347) | 22 mi |
| Hi-Tech, Inc. | 4.9★ (271) | 25 mi |
| Horton Plumbing, Heating, Cooling, & Remodeling | 4.7★ (1,258) | 15 mi |
| Huron Valley Plumbing & Mechanical | 4.6★ (26) | In Ann Arbor |
| My Handyman of Ann Arbor, Saline, and Chelsea | 4.7★ (515) | In Ann Arbor |
| One Hour Heating & Air Conditioning | 4.5★ (122) | 18 mi |
| Peyeramid Contracting LLC | 5.0★ (1) | In Ann Arbor |
| Royalty Air Duct & Carpet Cleaning | 4.9★ (1,425) | In Ann Arbor |
| Schutz Heating and Cooling | In Ann Arbor | |
| Sears Heating and Air Conditioning | 5.0★ (1) | In Ann Arbor |
| Steves Air Duct Carpet Cleaning | 4.9★ (339) | In Ann Arbor |
| Temperature Techs | In Ann Arbor |
National price ranges in USD, not adjusted for Ann Arbor. 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 328 Ann Arbor 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 Ann Arbor 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 |