178 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Buffalo: Professional Mechanical Services, CR Score 63/100; 4.9★ from 2,614 Google reviews; open 24/7.
Best for emergencies (open 24/7): Northern One Hour Heating & Air Conditioning, posts 24/7 hours; ranked #2 of 178.
Most-reviewed: Bonfe Plumbing, Heating, Cooling, Electrical, Sewer, 10,984 Google reviews at 4.8★, the most of 178 ranked; ranked #25.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
178 Buffalo HVAC contractors are ranked here by CR Score, from ten published factors. 53 are open 24/7, 105 open Saturdays and 93 open Sundays, based on posted hours. The median Google rating is 4.9★ across 178 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Professional Mechanical Services | 63 | 4.9★ (2,614) | Big Lake, 12 mi away | 24/7 | Overall |
| 2 | Northern One Hour Heating & Air Conditioning | 62 | 4.9★ (4,019) | Ramsey, 19 mi away | 24/7 | Emergencies |
| 3 | Aerostar Heating and Air | 62 | 5.0★ (225) | Buffalo | Sat · Sun · Evenings | — |
| 4 | DeZiel Heating & Air, Inc. | 62 | 4.7★ (663) | Buffalo | Sat · Sun · Evenings | — |
| 5 | Thelen Plumbing, Heating & Air | 61 | 4.9★ (946) | Big Lake, 14 mi away | 24/7 | — |
| 6 | Countryside Heating & Cooling Solutions | 61 | 4.9★ (1,007) | Corcoran, 14 mi away | 24/7 | — |
| 7 | B & D Plumbing, Heating & A/C | 61 | 4.8★ (802) | Albertville, 12 mi away | 24/7 | — |
| 8 | BNC Heating & Cooling | 61 | 5.0★ (352) | Rogers, 13 mi away | 24/7 | — |
| 9 | Home Energy Heating & Cooling | 61 | 4.9★ (3,173) | Plymouth, 23 mi away | 24/7 | — |
| 10 | A&A Heating and Air | 60 | 4.8★ (50) | Buffalo | 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: 4.9★ from 2,614 Google reviews, listed on Google as “HVAC contractor”.
Based in Ramsey, 19 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 4,019 Google reviews, listed on Google as “HVAC contractor”.
Based in Buffalo
Ranked #3 because of its Google rating and trade focus: 5.0★ from 225 Google reviews, listed on Google as “HVAC contractor”.
Based in Buffalo
Ranked #4 because of its Google rating and trade focus: 4.7★ from 663 Google reviews, listed on Google as “HVAC contractor”.
Based in Big Lake, 14 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 946 Google reviews, listed on Google as “HVAC contractor”.
Based in Corcoran, 14 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 1,007 Google reviews, listed on Google as “HVAC contractor”.
Based in Albertville, 12 mi away
Ranked #7 because of its Google rating and trade focus: 4.8★ from 802 Google reviews, listed on Google as “HVAC contractor”.
Based in Rogers, 13 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 352 Google reviews, listed on Google as “HVAC contractor”.
Based in Plymouth, 23 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 3,173 Google reviews, listed on Google as “HVAC contractor”.
Based in Buffalo
Ranked #10 because of its Google rating and trade focus: 4.8★ from 50 Google reviews, listed on Google as “HVAC contractor”.
Based in Maple Grove, 18 mi away
Ranked #11 because of its Google rating and trade focus: 4.9★ from 3,005 Google reviews, listed on Google as “HVAC contractor”.
Based in Minneapolis, 25 mi away
Ranked #12 because of its Google rating and trade focus: 4.8★ from 3,961 Google reviews, listed on Google as “HVAC contractor”.
Based in Delano, 5 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 64 Google reviews, listed on Google as “HVAC contractor”.
Based in Maple Grove, 22 mi away
Ranked #14 because of its Google rating and trade focus: 4.7★ from 8,859 Google reviews, listed on Google as “HVAC contractor”.
Based in Minnetrista, 14 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 176 Google reviews, listed on Google as “HVAC contractor”.
Based in Brooklyn Park, 24 mi away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 1,497 Google reviews, listed on Google as “HVAC contractor”.
Based in Minnetonka, 24 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 843 Google reviews, listed on Google as “HVAC contractor”.
Based in Elk River, 19 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 296 Google reviews, listed on Google as “HVAC contractor”.
Based in Brooklyn Park, 24 mi away
Ranked #19 because of its Google rating and trade focus: 4.9★ from 931 Google reviews, listed on Google as “HVAC contractor”.
Based in Rogers, 16 mi away
Ranked #20 because of its Google rating and trade focus: 4.8★ from 886 Google reviews, listed on Google as “HVAC contractor”.
Based in Anoka, 24 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 1,480 Google reviews, listed on Google as “HVAC contractor”.
Based in Corcoran, 19 mi away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 255 Google reviews, listed on Google as “HVAC contractor”.
Based in Buffalo
Ranked #23 because of its Google rating and trade focus: 4.5★ from 11 Google reviews, listed on Google as “HVAC contractor”.
Based in Elk River, 16 mi away
Ranked #24 because of its Google rating and trade focus: 4.9★ from 112 Google reviews, listed on Google as “HVAC contractor”.
Based in Bloomington, 24 mi away
Ranked #25 because of its Google rating and review volume: 4.8★ from 10,984 Google reviews, the most in Buffalo.
#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 178 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 |
|---|---|---|
| Air Max | 5.0★ (1) | 18 mi |
| All Seasons Heating & Air Inc | 5.0★ (1) | 15 mi |
| Century Heating & Air | 3.0★ (2) | 17 mi |
| Chiller Technology Services | 5.0★ (1) | 17 mi |
| Comfort Solutions Heating & Cooling Otsego | 5.0★ (2) | 18 mi |
| Corporate Mechanical | 3.9★ (20) | 25 mi |
| Furnace PRO MN | 4.7★ (12) | 20 mi |
| Innovative Plumbing & Heating Inc | 5.0★ (1) | 16 mi |
| ITM4 | In Buffalo | |
| Jedi Home Services, Ltd | 5.0★ (50) | 24 mi |
| John's Air Conditioning Repair | 5.0★ (4) | 21 mi |
| Johnson Controls Minneapolis Rochester Office | 3.1★ (21) | 23 mi |
| Lake State Heating and Air Conditioning | 5.0★ (15) | 20 mi |
| Minneapolis Heating and Air Conditioning | 5.0★ (1) | 16 mi |
| Mr Service | 4.6★ (8) | 24 mi |
| Professional Mechanical Services | 4.9★ (58) | 24 mi |
| Schroeder Sales Co | 5.0★ (2) | 22 mi |
| Schumm Heating & Cooling | 5.0★ (1) | 12 mi |
| Top Tech Heating & Air | 5.0★ (14) | 20 mi |
| Value Refrigeration, LLC | 5.0★ (2) | In Buffalo |
National price ranges in USD, not adjusted for Buffalo. 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 Minnesota, 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 178 Buffalo 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 Buffalo 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 |