13 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Sturgeon Bay: Wulf Brothers Inc, CR Score 62/100; 4.8★ from 397 Google reviews.
Most-reviewed: Synergy Heating And Cooling, 372 Google reviews at 4.8★, the most of 13 ranked after Wulf Brothers Inc; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
13 Sturgeon Bay HVAC contractors are ranked here by CR Score, from ten published factors. 2 open Saturdays and 1 open Sundays, based on posted hours. The median Google rating is 4.7★ across 13 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Wulf Brothers Inc | 62 | 4.8★ (397) | Sturgeon Bay | — | Overall |
| 2 | Synergy Heating And Cooling | 62 | 4.8★ (372) | Sturgeon Bay | — | Most reviews |
| 3 | Eagle Mechanical Inc | 58 | 4.7★ (55) | Sturgeon Bay | — | — |
| 4 | Sturgeon Bay Heating & Air Conditioning | 58 | 4.4★ (9) | Sturgeon Bay | Sat · Sun · Evenings | — |
| 5 | Ultimate Garage Heating and Cooling | 56 | 4.9★ (28) | Allouez, 4 mi away | — | — |
| 6 | Long Heating & Cooling Inc | 52 | 4.5★ (30) | Menominee, 23 mi away | Sat | — |
| 7 | Peterson Plumbing & Heating Co | 52 | 3.6★ (9) | Sturgeon Bay | — | — |
| 8 | GPS Heating & Cooling Systems & Service LLC | 51 | 4.4★ (47) | Marinette, 22 mi away | — | — |
| 9 | Menza And Zak Heating, Cooling & Sheet Metal | 51 | 4.6★ (30) | Marinette, 22 mi away | — | — |
| 10 | Zeratsky Extreme Heating & Cooling Inc. | 51 | 4.5★ (47) | Menominee, 25 mi away | — | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and review volume: 4.8★ from 397 Google reviews, the most in Sturgeon Bay.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sturgeon Bay
Ranked #2 because of its Google rating and trade focus: 4.8★ from 372 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sturgeon Bay
Ranked #3 because of its Google rating and trade focus: 4.7★ from 55 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sturgeon Bay
Ranked #4 because of its Google rating and trade focus: 4.4★ from 9 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Allouez, 4 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 28 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Menominee, 23 mi away
Ranked #6 because of its Google rating and trade focus: 4.5★ from 30 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sturgeon Bay
Ranked #7 because of its Google rating and trade focus: 3.6★ from 9 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Marinette, 22 mi away
Ranked #8 because of its Google rating and trade focus: 4.4★ from 47 Google reviews, listed on Google as “Heating contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Marinette, 22 mi away
Ranked #9 because of its Google rating and trade focus: 4.6★ from 30 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Menominee, 25 mi away
Ranked #10 because of its Google rating and trade focus: 4.5★ from 47 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Menominee, 23 mi away
Ranked #11 because of its Google rating and trade focus: 4.9★ from 17 Google reviews, listed on Google as “Heating contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Marinette, 24 mi away
Ranked #12 because of its Google rating and trade focus: 4.8★ from 16 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Marinette, 22 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Heating contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
6 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 |
|---|---|---|
| Brehm Building Services | 1 mi | |
| Hurckman Mechanical Industries, Inc. | 21 mi | |
| Krueger's Refrigeration Sales | 5.0★ (1) | 22 mi |
| Nerat's Plumbing Heating & Cooling | 1.0★ (1) | 23 mi |
| Sears Heating and Air Conditioning | 1.0★ (1) | 21 mi |
| Zeratsky Extreme Geo-Thermal | 25 mi |
National price ranges in USD, not adjusted for Sturgeon Bay. 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 13 Sturgeon Bay 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 23, 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 Sturgeon Bay 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 |