25 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Portage: RG Heating Cooling Plumbing, CR Score 62/100; 4.9★ from 1,820 Google reviews; open 24/7.
Best for emergencies (open 24/7): Big Ben Enterprises, posts 24/7 hours; ranked #3 of 25.
Most-reviewed: Mr.T's Fireplace Services LLC, 522 Google reviews at 4.8★, the most of 25 ranked after RG Heating Cooling Plumbing; ranked #21.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
25 Portage HVAC contractors are ranked here by CR Score, from ten published factors. 4 are open 24/7, 6 open Saturdays and 5 open Sundays, based on posted hours. The median Google rating is 4.8★ across 25 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | RG Heating Cooling Plumbing | 62 | 4.9★ (1,820) | Waunakee, 25 mi away | 24/7 | Overall |
| 2 | Johnson Mechanical, LLC | 58 | 4.7★ (196) | Portage | — | — |
| 3 | Big Ben Enterprises | 56 | 5.0★ (4) | Lapeer, 6 mi away | 24/7 | Emergencies |
| 4 | A+ The Fix Refrigeration, Heating, and Air Conditioning | 56 | 5.0★ (18) | Oconomowoc, 12 mi away | Sat · Sun · Evenings | — |
| 5 | Greiber Heating & Sheet Metal, Inc. | 55 | 4.8★ (45) | Waunakee, 24 mi away | 24/7 | — |
| 6 | Lenny's Heating & Air Conditioning - Armstrong Dealer | 55 | 4.8★ (37) | Reedsburg, 23 mi away | 24/7 | — |
| 7 | Pointon Heating & Air Conditioning Inc | 55 | 4.9★ (17) | Portage | — | — |
| 8 | Rock Solid Heating & Air LLC | 55 | 5.0★ (3) | Portage | — | — |
| 9 | Terrytown Plumbing, Heating & Cooling | 54 | 4.5★ (220) | Baraboo, 15 mi away | — | — |
| 10 | Terrytown Plumbing, Heating & Cooling | 53 | 4.2★ (41) | Portage | — | — |
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: 4.9★ from 1,820 Google reviews, the most in Portage.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Portage
Ranked #2 because of its Google rating and trade focus: 4.7★ from 196 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lapeer, 6 mi away
Ranked #3 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 Oconomowoc, 12 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Waunakee, 24 mi away
Ranked #5 because of its Google rating and trade focus: 4.8★ from 45 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Reedsburg, 23 mi away
Ranked #6 because of its Google rating and trade focus: 4.8★ from 37 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Portage
Ranked #7 because of its Google rating and trade focus: 4.9★ from 17 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Portage
Ranked #8 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.
Based in Baraboo, 15 mi away
Ranked #9 because of its Google rating and trade focus: 4.5★ from 220 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Portage
Ranked #10 because of its Google rating and trade focus: 4.2★ from 41 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Portage
Ranked #11 because of its Google rating and trade focus: 4.4★ from 8 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Reedsburg, 22 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 101 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Portage
Ranked #13 because of its Google rating and trade focus: 4.3★ from 3 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Baraboo, 15 mi away
Ranked #14 because of its Google rating and trade focus: 4.4★ from 32 Google reviews, listed on Google as “Heating contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Waunakee, 21 mi away
Ranked #15 because of its Google rating and trade focus: 4.8★ from 44 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Baraboo, 15 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Baraboo, 16 mi away
Ranked #17 because of its Google rating and trade focus: 4.0★ from 70 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sun Prairie, 24 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “HVAC contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Baraboo, 16 mi away
Ranked #19 because of its Google rating and review volume: 4.7★ from 271 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Madison, 25 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Middleton, 23 mi away
Ranked #21 because of its Google rating and review volume: 4.8★ from 522 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Waunakee, 23 mi away
Ranked #22 because of its Google rating and trade focus: 4.0★ from 21 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Waunakee, 23 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Baraboo, 16 mi away
Ranked #24 because of its Google rating and review volume: 4.6★ from 92 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Baraboo, 14 mi away
Ranked #25 because of its Google rating and trade focus: 4.3★ from 9 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
4 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 |
|---|---|---|
| Designed Mechanical, Inc. | 5.0★ (1) | 24 mi |
| Home Comfort Heating, LLC | 25 mi | |
| Madison Heating and Cooling | 5.0★ (2) | 21 mi |
| Simply Well Air LLC | In Portage |
National price ranges in USD, not adjusted for Portage. 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 25 Portage 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 Portage 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 |