94/100CR Score
Ranked #1 because of its Google rating and availability: 4.8★ from 2,376 Google reviews, open 24/7.
- 4.8★ from 2,376 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 421 McKenzie Dr, Mukwonago, WI 53149
Best HVAC Contractors in Mukwonago, WI (2026)
284 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Mukwonago: Midwest Heating & Cooling, CR Score 94/100; 4.8★ from 2,376 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Kettle Moraine Heating & Air Conditioning, LLC, posts 24/7 hours; ranked #2 of 284.
- 47
Most-reviewed: Roman Home Services - Electric, Plumbing, Heating & Cooling, 5,231 Google reviews at 4.9★, the most of 284 ranked; ranked #47.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
284 Mukwonago HVAC contractors are ranked here by CR Score, from 8 published factors. 117 are open 24/7, 169 open Saturdays and 140 open Sundays, based on posted hours. The median Google rating is 4.9★ across 284 rated businesses.
Top 10 HVAC contractors in Mukwonago at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Midwest Heating & Cooling | 94 | 4.8★ (2,376) | Mukwonago | 24/7 | Overall |
| 2 | Kettle Moraine Heating & Air Conditioning, LLC | 93 | 4.9★ (4,102) | Delafield, 11 mi away | 24/7 | Emergencies |
| 3 | 1st Choice Heating & Cooling | 91 | 4.9★ (1,076) | Muskego, 9 mi away | 24/7 | — |
| 4 | Pat's Heating & Air Conditioning | 91 | 5.0★ (1,747) | Oconomowoc, 16 mi away | 24/7 | — |
| 5 | Thielmann Heating, Cooling & Plumbing | 91 | 4.9★ (1,665) | New Berlin, 13 mi away | 24/7 | — |
| 6 | A & B Heating and Cooling | 91 | 5.0★ (106) | Mukwonago | 24/7 | — |
| 7 | On Time Heating & Cooling | 91 | 5.0★ (446) | Waukesha, 10 mi away | 24/7 | — |
| 8 | The Thielmann Group | 91 | 5.0★ (448) | Waterford, 10 mi away | 24/7 | — |
| 9 | H. J. Faust, Inc. Heating and Air Conditioning | 90 | 4.9★ (1,340) | Burlington, 15 mi away | 24/7 | — |
| 10 | Absolute Comfort HVAC LLC | 90 | 5.0★ (201) | Waterford, 8 mi away | 24/7 | — |
The 284 best HVAC contractors in Mukwonago, ranked
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Based in Delafield, 11 mi away
93/100CR ScoreRanked #2 because of its Google rating and availability: 4.9★ from 4,102 Google reviews, open 24/7.
- 4.9★ from 4,102 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- W325 S1767, Mickle Rd, Delafield, WI 53018
Based in Muskego, 9 mi away
91/100CR ScoreRanked #3 because of its Google rating and availability: 4.9★ from 1,076 Google reviews, open 24/7.
- 4.9★ from 1,076 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- S82W19246 Apollo Dr Unit B, Muskego, WI 53150
Based in Oconomowoc, 16 mi away
91/100CR ScoreRanked #4 because of its Google rating and availability: 5.0★ from 1,747 Google reviews, open 24/7.
- 5.0★ from 1,747 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1833 Executive Dr, Oconomowoc, WI 53066
Based in New Berlin, 13 mi away
91/100CR ScoreRanked #5 because of its Google rating and availability: 4.9★ from 1,665 Google reviews, open 24/7.
- 4.9★ from 1,665 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 17020 W National Ave, New Berlin, WI 53151
Based in Mukwonago
91/100CR ScoreRanked #6 because of its Google rating and availability: 5.0★ from 106 Google reviews, open 24/7.
- 5.0★ from 106 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- S72W30945 Kettle Ridge Dr, Mukwonago, WI 53149
Based in Waukesha, 10 mi away
91/100CR ScoreRanked #7 because of its Google rating and availability: 5.0★ from 446 Google reviews, open 24/7.
- 5.0★ from 446 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 323 W Sunset Dr, Waukesha, WI 53189
Based in Waterford, 10 mi away
91/100CR ScoreRanked #8 because of its Google rating and availability: 5.0★ from 448 Google reviews, open 24/7.
- 5.0★ from 448 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 107 N Milwaukee St, Waterford, WI 53185
Based in Burlington, 15 mi away
90/100CR ScoreRanked #9 because of its Google rating and availability: 4.9★ from 1,340 Google reviews, open 24/7.
- 4.9★ from 1,340 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1008 S Pine St Suite A, Burlington, WI 53105
Based in Waterford, 8 mi away
90/100CR ScoreRanked #10 because of its Google rating and availability: 5.0★ from 201 Google reviews, open 24/7.
- 5.0★ from 201 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 30913 Shady Ln, Waterford, WI 53185
Based in Mukwonago
90/100CR ScoreRanked #11 because of its Google rating and availability: 5.0★ from 62 Google reviews, open 24/7.
- 5.0★ from 62 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 639 Baxter Dr, Mukwonago, WI 53149
Based in New Berlin, 16 mi away
90/100CR ScoreRanked #12 because of its Google rating and availability: 4.9★ from 1,158 Google reviews, open 24/7.
- 4.9★ from 1,158 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1910 S Sunny Slope Rd, New Berlin, WI 53151
Based in Burlington, 14 mi away
90/100CR ScoreRanked #13 because of its Google rating and availability: 5.0★ from 458 Google reviews, open 24/7.
- 5.0★ from 458 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 201 S Pine St, Burlington, WI 53105
Based in New Berlin, 14 mi away
90/100CR ScoreRanked #14 because of its Google rating and availability: 4.8★ from 1,334 Google reviews, open 24/7.
- 4.8★ from 1,334 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2400 S Commerce Dr, New Berlin, WI 53151
Based in Brookfield, 17 mi away
89/100CR ScoreRanked #15 because of its Google rating and availability: 4.9★ from 1,113 Google reviews, open 24/7.
- 4.9★ from 1,113 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2840 N Brookfield Rd Ste 2, Brookfield, WI 53045
Based in Sussex, 18 mi away
89/100CR ScoreRanked #16 because of its Google rating and availability: 4.9★ from 932 Google reviews, open 24/7.
- 4.9★ from 932 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- N53 W24950 S Corporate Cir, Sussex, WI 53089
Based in Caledonia, 20 mi away
89/100CR ScoreRanked #17 because of its Google rating and availability: 4.8★ from 2,067 Google reviews, open 24/7.
- 4.8★ from 2,067 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1343 S 27th St, Caledonia, WI 53108
Based in Brookfield, 17 mi away
89/100CR ScoreRanked #18 because of its Google rating and availability: 5.0★ from 436 Google reviews, open 24/7.
- 5.0★ from 436 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 120 Bishops Way, Brookfield, WI 53005
Based in Waukesha, 15 mi away
89/100CR ScoreRanked #19 because of its Google rating and availability: 5.0★ from 262 Google reviews, open 24/7.
- 5.0★ from 262 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- W220N1560 Jericho Ct, Waukesha, WI 53186
Based in Brookfield, 16 mi away
89/100CR ScoreRanked #20 because of its Google rating and availability: 4.9★ from 482 Google reviews, open 24/7.
- 4.9★ from 482 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 405 N Calhoun Rd, Brookfield, WI 53005
Based in Menomonee Falls, 22 mi away
88/100CR ScoreRanked #21 because of its Google rating and availability: 4.7★ from 2,977 Google reviews, open 24/7.
- 4.7★ from 2,977 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- W134 N5368 Campbell Dr, Menomonee Falls, WI 53051
Based in Waukesha, 14 mi away
88/100CR ScoreRanked #22 because of its Google rating and availability: 4.6★ from 1,249 Google reviews, open 24/7.
- 4.6★ from 1,249 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 20711 Watertown Rd Suite D, Waukesha, WI 53186
Based in Hartland, 16 mi away
88/100CR ScoreRanked #23 because of its Google rating and availability: 4.9★ from 299 Google reviews, open 24/7.
- 4.9★ from 299 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 540 Norton Dr, Hartland, WI 53029
Based in Wauwatosa, 18 mi away
88/100CR ScoreRanked #24 because of its Google rating and availability: 5.0★ from 247 Google reviews, open 24/7.
- 5.0★ from 247 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 110 N 121st St, Wauwatosa, WI 53226
Based in Waukesha, 13 mi away
87/100CR ScoreRanked #25 because of its Google rating and availability: 4.9★ from 156 Google reviews, open 24/7.
- 4.9★ from 156 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2607 N Grandview Blvd suite 160G, Waukesha, WI 53188
HVAC contractors ranked #26 to #50
#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 284 ranked HVAC contractors here; the rest are on their profiles.
Also serving Mukwonago
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 |
|---|---|---|
| Air Maintenance Inc | 4.0★ (2) | 18 mi |
| Aire Serv of West Allis | 4.7★ (213) | 20 mi |
| Best Heating And Air Conditioning | 2.5★ (2) | 20 mi |
| Blaine's Crane Service | 5.0★ (2) | 21 mi |
| Bredan Mechanical Systems | 5.0★ (2) | 10 mi |
| BUILDING REPAIR SERVICE INC - Heating & Cooling | 5.0★ (2) | 16 mi |
| Cool Breeze or Fire Heating and Cooling | 1.0★ (2) | 19 mi |
| Envira-Tech Inc | 4.0★ (2) | 15 mi |
| Hanson Heating | 5.0★ (2) | 16 mi |
| IMI LLC | 5.0★ (2) | 19 mi |
| John Thielmann & Sons | 5.0★ (2) | 24 mi |
| Leachman HVAC and Maintenance, LLC | 5.0★ (2) | 24 mi |
| Mack's Heating & Air Conditioning | 5.0★ (2) | 24 mi |
| Mequons Heating & Air Conditioning Installation | 5.0★ (2) | 21 mi |
| Pure Mecahnical | 5.0★ (2) | 14 mi |
| Quality Air Heating and Cooling LLC | Heating Repair and Diagnostic | 5.0★ (2) | 23 mi |
| R J Refrigeration Inc | 5.0★ (2) | 19 mi |
| RTU Replacement Specialists, LLC | 5.0★ (1) | 8 mi |
| TMS Service | 4.5★ (2) | 12 mi |
| Trane Milwaukee Sales Office | 2.5★ (2) | 24 mi |
How much do HVAC contractors cost in Mukwonago?
National price ranges in USD, not adjusted for Mukwonago. 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 |
When to hire an HVAC contractor in Wisconsin
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.
How we ranked Mukwonago HVAC contractors
We scored 284 Mukwonago 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 Mukwonago 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 |
HVAC contractors in Mukwonago: frequently asked questions
Who is the best HVAC contractor in Mukwonago?
By CR Score, the highest-ranked HVAC contractor in Mukwonago, WI is Midwest Heating & Cooling with a CR Score of 94/100. It has 4.8★ from 2,376 Google reviews. It is open 24/7. Kettle Moraine Heating & Air Conditioning, LLC (#2) and 1st Choice Heating & Cooling (#3) follow. We ranked 284 HVAC contractors on 8 factors, last updated October 22, 2026.
How many HVAC contractors are there in Mukwonago?
ContractorsRanked ranks 284 HVAC contractors serving Mukwonago, WI. 4 of them are based in Mukwonago; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.
Which HVAC contractors in Mukwonago are open 24/7?
117 ranked HVAC contractors in Mukwonago post 24/7 hours. The highest-ranked are Midwest Heating & Cooling (#1), Kettle Moraine Heating & Air Conditioning, LLC (#2) and 1st Choice Heating & Cooling (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which HVAC contractors in Mukwonago work on weekends?
169 of 284 ranked HVAC contractors post Saturday hours and 140 post Sunday hours. The highest-ranked open Saturdays are Midwest Heating & Cooling (#1), Kettle Moraine Heating & Air Conditioning, LLC (#2) and 1st Choice Heating & Cooling (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does ac replacement cost in Mukwonago?
AC replacement typically costs $3,887 to $8,073, with $5,978 typical (Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range). This is a national range, not adjusted for Mukwonago. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Mukwonago HVAC contractors have?
The median Google rating among 284 rated HVAC contractors in Mukwonago is 4.9★, with a median of 28 reviews. Roman Home Services - Electric, Plumbing, Heating & Cooling has the most, 5,231 reviews, and ranks #47. We adjust ratings for review count, so a few five-star reviews cannot top the list.
When is the best time to hire an HVAC contractor in Mukwonago?
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.
How does ContractorsRanked rank HVAC contractors?
Each HVAC contractor gets a 0–100 CR Score from 8 published factors, led by reputation (35%), credentials (15%), review volume (10%) and recency (10%). Factors we cannot measure are left out, not scored as zero. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Update log for Mukwonago
- October 2026: CR Scores recalculated for 284 hvac contractors serving Mukwonago.
- October 2026: 5 duplicate listings merged.
More HVAC contractors and Mukwonago pages
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Other trades in Mukwonago
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- Window installers in Mukwonago280 ranked
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