308 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in West Allis: Roman Home Services - Electric, Plumbing, Heating & Cooling, CR Score 65/100; 4.9★ from 5,231 Google reviews; open 24/7.
Best for emergencies (open 24/7): New Berlin Heating & Air Conditioning, posts 24/7 hours; ranked #2 of 308.
Most-reviewed: Mr. Holland's Home Services, 7,086 Google reviews at 4.8★, the most of 308 ranked; ranked #21.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
308 West Allis HVAC contractors are ranked here by CR Score, from ten published factors. 130 are open 24/7, 191 open Saturdays and 161 open Sundays, based on posted hours. The median Google rating is 4.9★ across 308 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Roman Home Services - Electric, Plumbing, Heating & Cooling | 65 | 4.9★ (5,231) | West Allis | 24/7 | Overall |
| 2 | New Berlin Heating & Air Conditioning | 65 | 4.9★ (1,158) | New Berlin, 4 mi away | 24/7 | Emergencies |
| 3 | Thielmann Heating, Cooling & Plumbing | 64 | 4.9★ (1,665) | New Berlin, 7 mi away | 24/7 | — |
| 4 | Third Coast HVAC, AC & Furnace Repair | 64 | 5.0★ (436) | Brookfield, 4 mi away | 24/7 | — |
| 5 | Capital Heating, Cooling, Electric, and Plumbing | 64 | 4.7★ (2,977) | Menomonee Falls, 8 mi away | 24/7 | — |
| 6 | Mr. Holland's Home Services | 64 | 4.8★ (1,334) | New Berlin, 6 mi away | 24/7 | — |
| 7 | Quality Heating, Cooling, Plumbing & Electric | 64 | 4.9★ (1,113) | Brookfield, 8 mi away | 24/7 | — |
| 8 | Burkhardt Heating, Cooling, Plumbing & Electric | 63 | 4.8★ (2,027) | Milwaukee, 11 mi away | 24/7 | — |
| 9 | Pro Serv Plumbing, Heating, and Cooling | 63 | 5.0★ (247) | Wauwatosa, 3 mi away | 24/7 | — |
| 10 | Devix Heating and Cooling | 63 | 4.9★ (198) | West Allis | 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 in West Allis
Based in West Allis
Ranked #1 because of its Google rating and trade focus: 4.9★ from 5,231 Google reviews, listed on Google as “HVAC contractor”.
Based in New Berlin, 4 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 1,158 Google reviews, listed on Google as “HVAC contractor”.
Based in New Berlin, 7 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 1,665 Google reviews, listed on Google as “HVAC contractor”.
Based in Brookfield, 4 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 436 Google reviews, listed on Google as “HVAC contractor”.
Based in Menomonee Falls, 8 mi away
Ranked #5 because of its Google rating and trade focus: 4.7★ from 2,977 Google reviews, listed on Google as “HVAC contractor”.
Based in New Berlin, 6 mi away
Ranked #6 because of its Google rating and trade focus: 4.8★ from 1,334 Google reviews, listed on Google as “HVAC contractor”.
Based in Brookfield, 8 mi away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 1,113 Google reviews, listed on Google as “HVAC contractor”.
Based in Milwaukee, 11 mi away
Ranked #8 because of its Google rating and trade focus: 4.8★ from 2,027 Google reviews, listed on Google as “HVAC contractor”.
Based in Wauwatosa, 3 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 247 Google reviews, listed on Google as “HVAC contractor”.
Based in West Allis
Ranked #10 because of its Google rating and trade focus: 4.9★ from 198 Google reviews, listed on Google as “HVAC contractor”.
Based in Milwaukee, 3 mi away
Ranked #11 because of its Google rating and trade focus: 4.9★ from 288 Google reviews, listed on Google as “HVAC contractor”.
Based in Brookfield, 6 mi away
Ranked #12 because of its Google rating and trade focus: 4.9★ from 482 Google reviews, listed on Google as “HVAC contractor”.
Based in West Allis
Ranked #13 because of its Google rating and trade focus: 4.9★ from 176 Google reviews, listed on Google as “HVAC contractor”.
Based in Muskego, 11 mi away
Ranked #14 because of its Google rating and trade focus: 4.9★ from 1,076 Google reviews, listed on Google as “HVAC contractor”.
Based in Brookfield, 5 mi away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 383 Google reviews, listed on Google as “HVAC contractor”.
Based in Brookfield, 5 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 222 Google reviews, listed on Google as “HVAC contractor”.
Based in Delafield, 20 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 4,102 Google reviews, listed on Google as “HVAC contractor”.
Based in Caledonia, 14 mi away
Ranked #18 because of its Google rating and trade focus: 4.8★ from 2,067 Google reviews, listed on Google as “HVAC contractor”.
Based in West Allis
Ranked #19 because of its Google rating and trade focus: 4.7★ from 213 Google reviews, listed on Google as “HVAC contractor”.
Based in Milwaukee, 3 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 115 Google reviews, listed on Google as “HVAC contractor”.
Based in Jackson, 22 mi away
Ranked #21 because of its Google rating and review volume: 4.8★ from 7,086 Google reviews, the most in West Allis.
Based in Sussex, 14 mi away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 932 Google reviews, listed on Google as “HVAC contractor”.
Based in Waukesha, 12 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 446 Google reviews, listed on Google as “HVAC contractor”.
Based in Waukesha, 9 mi away
Ranked #24 because of its Google rating and trade focus: 4.6★ from 1,249 Google reviews, listed on Google as “Furnace repair service”.
Based in Milwaukee, 1 mi away
Ranked #25 because of its Google rating and review volume: 4.8★ from 2,148 Google reviews.
#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 308 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 |
|---|---|---|
| ABC Plumbing, Sewer, Heating, Cooling & Electric | 4.0★ (1) | In West Allis |
| Air Maintenance Inc | 4.0★ (2) | 12 mi |
| Best Heating And Air Conditioning | 2.5★ (2) | 5 mi |
| BUILDING REPAIR SERVICE INC - Heating & Cooling | 5.0★ (2) | 5 mi |
| Envira-Tech Inc | 4.0★ (2) | 10 mi |
| First Call Heating & Cooling | 4.9★ (1,103) | 24 mi |
| HVAC Bay Furnace & AC Repair | 5.0★ (2) | 9 mi |
| IMI LLC | 5.0★ (2) | In West Allis |
| John Thielmann & Sons | 5.0★ (2) | 11 mi |
| Mack's Heating & Air Conditioning | 5.0★ (2) | 5 mi |
| Masters Building Solutions | In West Allis | |
| Mequons Heating & Air Conditioning Installation | 5.0★ (2) | 7 mi |
| Pure Mecahnical | 5.0★ (2) | 10 mi |
| R J Refrigeration Inc | 5.0★ (2) | 8 mi |
| Rheem Warranty Repair Services | 2.1★ (9) | In West Allis |
| Tempco Inc Heating & Air Conditioning | 4.5★ (2) | 8 mi |
| TMS Service | 4.5★ (2) | 8 mi |
| Trane Milwaukee Sales Office | 2.5★ (2) | 5 mi |
| W H Jacklin Inc | 3.0★ (2) | 11 mi |
| Warm And Nippy | In West Allis |
National price ranges in USD, not adjusted for West Allis. 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 308 West Allis 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 West Allis 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 |