24 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Berlin: Air Tech Heating, Inc., CR Score 88/100; 4.9★ from 65 Google reviews; open 24/7.
Best for emergencies (open 24/7): HomeTown Heating & Cooling, posts 24/7 hours; ranked #2 of 24.
Most-reviewed: Brewer Heating, Inc., 1,570 Google reviews at 5.0★, the most of 24 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
24 Berlin HVAC contractors are ranked here by CR Score, from 8 published factors. 3 are open 24/7, 7 open Saturdays and 7 open Sundays, based on posted hours. The median Google rating is 4.8★ across 24 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Air Tech Heating, Inc. | 88 | 4.9★ (65) | Ripon, 9 mi away | 24/7 | Overall |
| 2 | HomeTown Heating & Cooling | 85 | 5.0★ (22) | Oshkosh, 15 mi away | 24/7 | Emergencies |
| 3 | Brewer Heating, Inc. | 84 | 5.0★ (1,570) | Ripon, 10 mi away | — | Most reviews |
| 4 | Fusion Heating and Cooling LLC | 83 | 4.8★ (26) | Ripon, 9 mi away | — | — |
| 5 | Merten Plumbing & Heating Inc. | 81 | 4.6★ (9) | Oshkosh, 22 mi away | 24/7 | — |
| 6 | A&BE Heating and Cooling, LLC | 81 | 4.8★ (75) | Oshkosh, 21 mi away | — | — |
| 7 | Berlin Heating & Air Conditioning | 81 | 3.5★ (8) | Berlin | Sat · Sun · Evenings | — |
| 8 | Condon Total Comfort Inc. | 79 | 4.8★ (207) | Ripon, 10 mi away | — | — |
| 9 | Rasmussen's Heating & Air Conditioning | 78 | 4.8★ (4) | Oshkosh, 16 mi away | — | — |
| 10 | Heating & Cooling | 77 | 3.7★ (6) | Oshkosh, 20 mi away | Sat · Sun · Evenings | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and availability: 4.9★ from 65 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Oshkosh, 15 mi away
Ranked #2 because of its Google rating and availability: 5.0★ from 22 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ripon, 10 mi away
Ranked #3 because of its Google rating and review volume: 5.0★ from 1,570 Google reviews, the most Google reviews on this list (1,570).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ripon, 9 mi away
Ranked #4 because of its Google rating and trade focus: 4.8★ from 26 Google reviews, listed on Google as “Heating contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Oshkosh, 22 mi away
Ranked #5 because of its Google rating and availability: 4.6★ from 9 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Oshkosh, 21 mi away
Ranked #6 because of its Google rating and trade focus: 4.8★ from 75 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Berlin
Ranked #7 because of its Google rating and trade focus: 3.5★ from 8 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ripon, 10 mi away
Ranked #8 because of its Google rating and trade focus: 4.8★ from 207 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Oshkosh, 16 mi away
Ranked #9 because of its Google rating and trade focus: 4.8★ from 4 Google reviews, listed on Google as “HVAC contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Oshkosh, 20 mi away
Ranked #10 because of its Google rating and trade focus: 3.7★ from 6 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Oshkosh, 20 mi away
Ranked #11 because of its Google rating and availability: 5.0★ from 19 Google reviews, open 7 days a week.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Oshkosh, 20 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Heating contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Oshkosh, 16 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 59 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Oshkosh, 20 mi away
Ranked #14 because of its Google rating and trade focus: 4.8★ from 141 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Berlin
Ranked #15 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Heating contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Oshkosh, 20 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 34 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Oshkosh, 16 mi away
Ranked #17 because of its Google rating and trade focus: 4.7★ from 31 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Oshkosh, 20 mi away
Ranked #18 because of its Google rating and trade focus: 4.5★ from 55 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Oshkosh, 17 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Heating contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Oshkosh, 21 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 27 Google reviews, listed on Google as “Heating contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Oshkosh, 20 mi away
Ranked #21 because of its Google rating and trade focus: 4.3★ from 28 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Waupun, 25 mi away
Ranked #22 because of its Google rating and trade focus: 4.0★ from 17 Google reviews, listed on Google as “Heating contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Fond du Lac, 24 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Fond du Lac, 24 mi away
Ranked #24 because of its Google rating and trade focus: 4.8★ from 12 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
9 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 |
|---|---|---|
| Badger State Mechanical | 7 mi | |
| Best Mechanical | 18 mi | |
| C.H. Koch Plumbing & Heating Inc | 5.0★ (1) | 21 mi |
| Condon Total Comfort Inc | 21 mi | |
| E. C. Merrill, Inc. | 5.0★ (1) | 19 mi |
| Hoppa's of Berlin | 2.5★ (2) | In Berlin |
| HVAC Armor | 20 mi | |
| HVAC Armor Oshkosh | 3.0★ (1) | 19 mi |
| HVAC Contractors | 10 mi |
National price ranges in USD, not adjusted for Berlin. 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 Wisconsin, 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 24 Berlin HVAC contractors on 8 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. Unknown factors are left out of the score, 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 Berlin data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |