42 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Rochester: Tonna Mechanical: Heating, A/C, Water Treatment, Plumbing & Duct Cleaning, CR Score 68/100; 4.9★ from 3,341 Google reviews; open 24/7.
Best for emergencies (open 24/7): K & S Heating, Air Conditioning, Plumbing & Electrical, posts 24/7 hours; ranked #2 of 42.
Most-reviewed: K & S Heating, Air Conditioning, Plumbing & Electrical, 4,071 Google reviews at 4.8★, the most of 42 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
42 Rochester HVAC contractors are ranked here by CR Score, from ten published factors. 13 are open 24/7, 17 open Saturdays and 16 open Sundays, based on posted hours. The median Google rating is 4.8★ across 42 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Tonna Mechanical: Heating, A/C, Water Treatment, Plumbing & Duct Cleaning | 68 | 4.9★ (3,341) | Rochester | 24/7 | Overall |
| 2 | K & S Heating, Air Conditioning, Plumbing & Electrical | 68 | 4.8★ (4,071) | Rochester | 24/7 | Emergencies, Most reviews |
| 3 | Blue Ox Heating & Air | 65 | 4.9★ (690) | Rochester | 24/7 | — |
| 4 | Haley Comfort - Heating, Air Conditioning & Fireplaces - 24/7 Service | 65 | 4.9★ (1,245) | Rochester | Sat · Evenings · Emergency | — |
| 5 | Hawk's Services | 64 | 4.8★ (427) | Rochester | 24/7 | — |
| 6 | Hawk's Services | 64 | 4.9★ (205) | Rochester | 24/7 | — |
| 7 | Unitedly Service Group aquired by Hawk's Service | 63 | 4.9★ (174) | Rochester | 24/7 | — |
| 8 | Warners' Stellian Appliance | 63 | 4.7★ (942) | Rochester | Sat · Sun · Evenings | — |
| 9 | Hero: Plumbing, Heating, Cooling, Drains, Ducts & Electrical | 63 | 4.8★ (144) | Rochester | 24/7 | — |
| 10 | North Country Heating and Cooling | 62 | 5.0★ (64) | Rochester | 24/7 | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 in Rochester
Based in Rochester
Ranked #1 because of its Google rating and trade focus: 4.9★ from 3,341 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rochester
Ranked #2 because of its Google rating and review volume: 4.8★ from 4,071 Google reviews, the most in Rochester.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rochester
Ranked #3 because of its Google rating and trade focus: 4.9★ from 690 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rochester
Ranked #4 because of its Google rating and trade focus: 4.9★ from 1,245 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rochester
Ranked #5 because of its Google rating and trade focus: 4.8★ from 427 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rochester
Ranked #6 because of its Google rating and trade focus: 4.9★ from 205 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rochester
Ranked #7 because of its Google rating and trade focus: 4.9★ from 174 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rochester
Ranked #8 because of its Google rating and trade focus: 4.7★ from 942 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rochester
Ranked #9 because of its Google rating and trade focus: 4.8★ from 144 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rochester
Ranked #10 because of its Google rating and trade focus: 5.0★ from 64 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rochester
Ranked #11 because of its Google rating and trade focus: 4.8★ from 47 Google reviews, listed on Google as “Heating contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rochester
Ranked #12 because of its Google rating and trade focus: 4.3★ from 89 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rochester
Ranked #13 because of its Google rating and trade focus: 4.6★ from 14 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rochester
Ranked #14 because of its Google rating and trade focus: 4.9★ from 205 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rochester
Ranked #15 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rochester
Ranked #16 because of its Google rating and trade focus: 4.7★ from 34 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Rochester
Ranked #17 because of its Google rating and trade focus: 4.2★ from 45 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Byron, 9 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Heating contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rochester
Ranked #19 because of its Google rating and trade focus: 4.0★ from 8 Google reviews, listed on Google as “Heating contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Rochester
Ranked #20 because of its Google rating and trade focus: 4.8★ from 18 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rochester
Ranked #21 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “HVAC contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Stewartville, 11 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 65 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rochester
Ranked #23 because of its Google rating and trade focus: 3.7★ from 3 Google reviews, listed on Google as “Heating contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Rochester
Ranked #24 because of its Google rating and trade focus: 4.6★ from 11 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rochester
Ranked #25 because of its Google rating and trade focus: 4.6★ from 9 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#1 to #25 are shown in full above. Here are #26 to #42, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Service Pros Plumbing and Heating | 53 | 4.8★ (98) | In Rochester |
| 27 | Gander Plumbing & Heating | 53 | 4.2★ (10) | In Rochester |
| 28 | Harris | 53 | 5.0★ (4) | In Rochester |
| 29 | Metropolitan Mechanical Contractors, Inc. | 53 | 5.0★ (4) | In Rochester |
| 30 | J. F. Ahern Co. | 53 | 3.7★ (9) | In Rochester |
| 31 | Nagel Heating & Air Conditioning LLC | 52 | 5.0★ (23) | 11 mi |
| 32 | FloCore | 52 | 4.0★ (4) | In Rochester |
| 33 | Tri-County Plumbing & Heating | 52 | 5.0★ (16) | 12 mi |
| 34 | Hybrid Mechanical, LLC | 52 | 3.7★ (3) | In Rochester |
| 35 | 1st Class Plumbing & Heating | 52 | 4.7★ (46) | In Rochester |
| 36 | Cozik Plumbing & Heating | 52 | 5.0★ (7) | In Rochester |
| 37 | Gary Einck Plumbing & Heating | 51 | 5.0★ (4) | In Rochester |
| 38 | Preferred Heating, Cooling, and Plumbing LLC. | 50 | 4.2★ (21) | 14 mi |
| 39 | Goetzinger Plumbing and Heating LLC | 49 | 4.1★ (10) | In Rochester |
| 40 | Hamilton Plumbing and Heating | 47 | 4.3★ (6) | 7 mi |
| 41 | Route 52 Plumbing & Heating Inc | 46 | 3.8★ (4) | 9 mi |
| 42 | Advanced Plumbing and Heating | 44 | 3.0★ (10) | 14 mi |
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 |
|---|---|---|
| Bren Plumbing & Heating | 3.0★ (2) | In Rochester |
| Bry Heat and Air | In Rochester | |
| Cassidy Mechanical, Inc | 5.0★ (2) | In Rochester |
| Clean Air Dynamics LLC | In Rochester | |
| Custom Climate Control | 5.0★ (2) | In Rochester |
| Earth Energy Heating & Cooling Inc | In Rochester | |
| Erie Home | 4.5★ (107) | In Rochester |
| Hvac Sealers LLC | 9 mi | |
| Johnson Controls Rochester Office | 1.0★ (1) | In Rochester |
| Metro HVA/C Service | 5.0★ (1) | In Rochester |
| Moran Heating and Cooling | 5.0★ (1) | 22 mi |
| Mr. Rooter Plumbing of Rochester-MN | 4.7★ (739) | In Rochester |
| Paape Companies, Inc - Rochester | 5.0★ (2) | In Rochester |
| Pro Comfort - The Comfort Squad | 9 mi | |
| Proper Plumbing & Heating | In Rochester | |
| SERVPRO® of Rochester | 4.9★ (144) | In Rochester |
| Southeast Mechanical | 4.0★ (1) | In Rochester |
| Stanley Steemer | 4.5★ (40) | In Rochester |
| TMS Johnson | In Rochester | |
| Weather Shield Home Experts | 4.8★ (89) | In Rochester |
National price ranges in USD, not adjusted for Rochester. 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 42 Rochester 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 Rochester 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 |