ServiceAgent
HVAC·7 min read
Headshot of Sarah Mitchell
Written by Sarah Mitchell
Headshot of Marcus Chen
Reviewed by Marcus Chen, HVAC Industry Expert

Last updated June 28, 2026

HVAC in Milwaukee, Wisconsin: 13 Top Pros Ranked (2026)

13 verified hvac businesses in Milwaukee, ranked by ServiceAgent Score. Real Google reviews, verified contact info, transparent methodology - and the red flags to walk away from. Skip the marketing fluff and pick a pro in five minutes.

✓ MethodologyEditorial teamFree directory, no pay-to-rank
Milwaukee · HVAC
Milwaukee · HVAC
ServiceAgent · Directory

TL;DR

  • 13 verified hvac businesses operate in Milwaukee, Wisconsin - all sourced from active Google Business Profile data.
  • Top pick: Nimmer Heating & Air Conditioning, Inc. with a ServiceAgent Score of 8.7/10 (938 reviews, 4.9★ average).
  • 7 elite-tier providers (ServiceAgent Score 8.5+) and 0 owner-verified listings.
  • Typical cost in Milwaukee: $150 - $4,200 - $385 median for a single-system repair, $7,400 median for a full residential replacement.
  • 0 providers offer 24/7 or emergency service for after-hours and weekend calls.
  • Always get two written quotes before signing, verify license + insurance, and avoid same-day pressure tactics.

Why trust this list

When you need hvac work done in Milwaukee, the first hour of research is usually the most expensive part - reading reviews, decoding marketing claims, and trying to figure out who's actually a licensed pro vs. someone with a truck and a Google listing. This page is meant to compress that hour into about five minutes.

We've cataloged every active hvac business in Milwaukee, Wisconsin (13 total) and ranked them by a single composite ServiceAgent Score - a weighted blend of *trust signals* (data quality, verification status, review-volume credibility) and *quality signals* (rating, review count, response time). The result is a list where high-volume, well-reviewed, complete-data providers float to the top, and where a "5-star from 3 reviews" outfit doesn't get to outrank a 4.7★ provider with 240 reviews.

Below: the ranked list (top 13), followed by what to look for, what each project usually costs in Milwaukee, the red flags that should make you walk, and a methodology section that shows our exact formula. If you run one of these businesses, the Claim your listing banner near the bottom takes you through a 2-minute verification flow to get a green badge, edit your description, and bump your placement.

At-a-glance: top 11 hvac pros in Milwaukee

Compare the top picks side-by-side. Full reviews of each below.

#ProviderSA Score
#1Nimmer Heating & Air Conditioning, Inc.8.7
#2Heating and Cooling Drs of West Allis, Milwaukee and New Berlin LLC8.7
#3West Allis Heating, Cooling, Plumbing, and Electrical8.6
#4Burkhardt Heating, Cooling, Plumbing & Electric8.6
#5D & M Heating and Air Conditioning8.6
#6O & W Heating and Cooling and Furnace, boiler, water heater install & repair8.6
#7Air Solutions Heating & Cooling, LLC8.5
#8Oasis Heating & Air Conditioning LLC8.3
#9Pro Tech Mechanical8.2
#10RJ Heating and Air Conditioning LLC8.2
#11Uttke Heating & Cooling8.2

SA Score = ServiceAgent composite (0–10). Tap a row number to jump to the full review.

How we chose these

We start from every active Google Business Profile in Milwaukee tagged hvac, then score each business on two dimensions:

Trust Score (40% of the composite, 0-10) rewards owner-verified status (claimed listings get a 3-point bump), completeness of contact information (phone, website, address, hours, coordinates, photos, service categories), and review-volume credibility - a provider with 200+ reviews is treated as more trustworthy than a provider with the same star rating but only 5 reviews.

Recommendation Score (60% of the composite, 0-10) is the Google star rating shrunk toward the category mean using a Bayesian prior. Without this step, "5.0 from 2 reviews" would outrank "4.7 from 240 reviews" - which is exactly backwards. The shrinkage prior is set at m=25, meaning providers with fewer than 25 reviews are pulled noticeably toward the category mean (~4.8).

Composite ServiceAgent Score = 0.6 × Recommendation + 0.4 × Trust. We re-compute as new reviews land and as providers claim their listings. The "Last updated" date at the top of this page reflects the most recent data refresh feeding this ranking.

What we deliberately don't do: pay-to-rank, sponsored slots that masquerade as editorial picks, or hide our formula. Sponsored slots (if/when introduced) will be clearly labeled and won't affect editorial ranking.

Full formula on the methodology page.

13 Best HVAC Companies Ranked

Ranked by composite ServiceAgent Score. 13 verified businesses match.

Sort by:
1

Best for: Homeowners who want a high-volume operator with a long, consistent track record.

LocationMilwaukee, WI · 6530 W Forest Home Ave, Milwaukee, WI 53220
EstablishedEstablished (very high review volume)
SpecializationHVAC contractor
Rating4.9 across 938 Google reviews
StatusUnclaimed listing (Google data)
🛡 7.09.8
ServiceAgent Score 8.7/10 · high confidence

The approach

Nimmer Heating & Air Conditioning, Inc. has built a high-volume operation in Milwaukee, with 938 Google reviews averaging 4.9 stars. That kind of review velocity in a single market typically means a fleet-style operation with multiple crews and a predictable response window.

  • Maintains an active website with service detail.
  • Direct phone published - no lead form gatekeeping.
  • Active on Google with up-to-date contact info.

✓ Strong review signal

4.9-star average across 938 reviews is in the top 5% of providers in Milwaukee - unusually high satisfaction signal at this volume.

⚠ Watch out for

After-hours and emergency response isn't signaled on the public profile - confirm availability directly if your job is time-sensitive.

Our take

Our top pick. The composite score (8.7/10) reflects a rare combination of review depth, rating, and data completeness. Hard to argue with the data.

24/7 emergencyNot advertised
Free estimateNot advertised
Licensed + insuredNot advertised - verify before hiring
Phone(414) 500-4445
Websitenimmerheating.com
2

Best for: Quality-first buyers who care more about the satisfaction signal than the cheapest quote.

LocationMilwaukee, WI · 9431 Beloit Rd Suite 114, Milwaukee, WI 53227
EstablishedEstablished (high review volume)
SpecializationHVAC contractor
Rating4.9 across 288 Google reviews
StatusUnclaimed listing (Google data)
🛡 7.09.8
ServiceAgent Score 8.7/10 · high confidence

The approach

Heating and Cooling Drs of West Allis, Milwaukee and New Berlin LLC maintains a strong 4.9-star reputation across 288 reviews in Milwaukee, suggesting consistent execution rather than a one-off lucky streak.

  • Maintains an active website with service detail.
  • Direct phone published - no lead form gatekeeping.
  • Active on Google with up-to-date contact info.

✓ Strong review signal

4.9-star average across 288 reviews is in the top 5% of providers in Milwaukee - unusually high satisfaction signal at this volume.

⚠ Watch out for

After-hours and emergency response isn't signaled on the public profile - confirm availability directly if your job is time-sensitive.

Our take

A solid top-3 pick. Worth getting a quote from alongside #1 to compare response times and pricing on your specific job.

24/7 emergencyNot advertised
Free estimateNot advertised
Licensed + insuredNot advertised - verify before hiring
Phone(414) 434-0990
Websitedrsheatingcoolingllc.services/heating-and-cooling-drs-of-west-allis-milwaukee-and-new-berlin-llc
3

Best for: Homeowners who want a high-volume operator with a long, consistent track record.

LocationMilwaukee, WI · 201 S Hawley Ct, Milwaukee, WI 53214
EstablishedEstablished (very high review volume)
SpecializationHVAC contractor
Rating4.8 across 2,206 Google reviews
StatusUnclaimed listing (Google data)
🛡 7.09.6
ServiceAgent Score 8.6/10 · high confidence

The approach

West Allis Heating, Cooling, Plumbing, and Electrical has built a high-volume operation in Milwaukee, with 2,206 Google reviews averaging 4.8 stars. That kind of review velocity in a single market typically means a fleet-style operation with multiple crews and a predictable response window.

  • Maintains an active website with service detail.
  • Direct phone published - no lead form gatekeeping.
  • Active on Google with up-to-date contact info.

✓ Strong review signal

4.8-star average across 2,206 reviews points to consistent on-time delivery and clear communication.

⚠ Watch out for

After-hours and emergency response isn't signaled on the public profile - confirm availability directly if your job is time-sensitive.

Our take

A solid top-3 pick. Worth getting a quote from alongside #1 to compare response times and pricing on your specific job.

24/7 emergencyNot advertised
Free estimateNot advertised
Licensed + insuredNot advertised - verify before hiring
Phone(414) 236-7945
Websitewestallisheating.com/?utm_source=google-gbp&utm_medium=organic&utm_campaign=*217*west-allis-heating-west-allis
4

Best for: Homeowners who want a high-volume operator with a long, consistent track record.

LocationMilwaukee, WI · 8232 N Teutonia Ave, Milwaukee, WI 53209
EstablishedEstablished (very high review volume)
SpecializationHVAC contractor
Rating4.8 across 2,046 Google reviews
StatusUnclaimed listing (Google data)
🛡 7.09.6
ServiceAgent Score 8.6/10 · high confidence

The approach

Burkhardt Heating, Cooling, Plumbing & Electric has built a high-volume operation in Milwaukee, with 2,046 Google reviews averaging 4.8 stars. That kind of review velocity in a single market typically means a fleet-style operation with multiple crews and a predictable response window.

  • Maintains an active website with service detail.
  • Direct phone published - no lead form gatekeeping.
  • Active on Google with up-to-date contact info.

✓ Strong review signal

4.8-star average across 2,046 reviews points to consistent on-time delivery and clear communication.

⚠ Watch out for

After-hours and emergency response isn't signaled on the public profile - confirm availability directly if your job is time-sensitive.

Our take

Ranked here because of high review depth at a strong rating - the kind of provider you can hire without doing 90 minutes of due diligence.

24/7 emergencyNot advertised
Free estimateNot advertised
Licensed + insuredNot advertised - verify before hiring
Phone(414) 253-0455
Websitewww.burkhardtheating.com/?utm_source=google&utm_medium=organic&utm_campaign=gbpmilwaukee
5

Best for: Homeowners who want a high-volume operator with a long, consistent track record.

LocationMilwaukee, WI · 4227 South 13th Street, Milwaukee, WI 53221
EstablishedEstablished (very high review volume)
SpecializationHVAC contractor
Rating4.8 across 557 Google reviews
StatusUnclaimed listing (Google data)
🛡 7.09.6
ServiceAgent Score 8.6/10 · high confidence

The approach

D & M Heating and Air Conditioning has built a high-volume operation in Milwaukee, with 557 Google reviews averaging 4.8 stars. That kind of review velocity in a single market typically means a fleet-style operation with multiple crews and a predictable response window.

  • Maintains an active website with service detail.
  • Direct phone published - no lead form gatekeeping.
  • Active on Google with up-to-date contact info.

✓ Strong review signal

4.8-star average across 557 reviews points to consistent on-time delivery and clear communication.

⚠ Watch out for

After-hours and emergency response isn't signaled on the public profile - confirm availability directly if your job is time-sensitive.

Our take

Ranked here because of high review depth at a strong rating - the kind of provider you can hire without doing 90 minutes of due diligence.

24/7 emergencyNot advertised
Free estimateNot advertised
Licensed + insuredNot advertised - verify before hiring
Phone(414) 281-5350
Websitewww.dmheating.com
6

Best for: Mid-tier hvac jobs where price and quality both matter.

LocationMilwaukee, WI · 4379 S Howell Ave, Milwaukee, WI 53207
EstablishedEstablished (high review volume)
SpecializationHVAC contractor
Rating4.8 across 212 Google reviews
StatusUnclaimed listing (Google data)
🛡 7.09.6
ServiceAgent Score 8.6/10 · high confidence

The approach

O & W Heating and Cooling and Furnace, boiler, water heater install & repair maintains a strong 4.8-star reputation across 212 reviews in Milwaukee, suggesting consistent execution rather than a one-off lucky streak.

  • Maintains an active website with service detail.
  • Direct phone published - no lead form gatekeeping.
  • Active on Google with up-to-date contact info.

✓ Strong review signal

4.8-star average across 212 reviews points to consistent on-time delivery and clear communication.

⚠ Watch out for

After-hours and emergency response isn't signaled on the public profile - confirm availability directly if your job is time-sensitive.

Our take

Ranked here because of high review depth at a strong rating - the kind of provider you can hire without doing 90 minutes of due diligence.

24/7 emergencyNot advertised
Free estimateNot advertised
Licensed + insuredNot advertised - verify before hiring
Phone(414) 339-2641
Websitewww.milwaukeewiheatingcontractor.com
7

Best for: Customers prioritizing top-end satisfaction scores in Milwaukee.

LocationMilwaukee, WI · 5428 W Vliet St, Milwaukee, WI 53208
EstablishedOperating multiple years (moderate review history)
SpecializationHVAC contractor
Rating5.0 across 115 Google reviews
StatusUnclaimed listing (Google data)
🛡 6.59.9
ServiceAgent Score 8.5/10 · high confidence

The approach

Air Solutions Heating & Cooling, LLC maintains a strong 5.0-star reputation across 115 reviews in Milwaukee, suggesting consistent execution rather than a one-off lucky streak.

  • Maintains an active website with service detail.
  • Direct phone published - no lead form gatekeeping.
  • Active on Google with up-to-date contact info.

✓ Strong review signal

5.0-star average across 115 reviews is in the top 5% of providers in Milwaukee - unusually high satisfaction signal at this volume.

⚠ Watch out for

After-hours and emergency response isn't signaled on the public profile - confirm availability directly if your job is time-sensitive.

Our take

Mid-tier ranking in this market. Quality looks reasonable but isn't a standout vs. the top 3 - use them if you can't get a quote from a higher-ranked provider in time.

24/7 emergencyNot advertised
Free estimateNot advertised
Licensed + insuredNot advertised - verify before hiring
Phone(414) 554-1220
Websitewww.airsolutionshc.com/?utm_source=google&utm_medium=organic&utm_campaign=gbp
8

Best for: Customers prioritizing top-end satisfaction scores in Milwaukee.

LocationMilwaukee, WI · 4141 N Richards St, Milwaukee, WI 53212
EstablishedOperating multiple years (moderate review history)
SpecializationHVAC
Rating4.9 across 90 Google reviews
StatusUnclaimed listing (Google data)
🛡 6.09.8
ServiceAgent Score 8.3/10 · high confidence

The approach

Oasis Heating & Air Conditioning LLC operates in Milwaukee with 90 Google reviews at 4.9 stars - a steady mid-tier signal in our composite scoring.

  • Maintains an active website with service detail.
  • Direct phone published - no lead form gatekeeping.
  • Active on Google with up-to-date contact info.

✓ Strong review signal

4.9-star average across 90 reviews points to consistent on-time delivery and clear communication.

⚠ Watch out for

After-hours and emergency response isn't signaled on the public profile - confirm availability directly if your job is time-sensitive.

Our take

Mid-tier ranking in this market. Quality looks reasonable but isn't a standout vs. the top 3 - use them if you can't get a quote from a higher-ranked provider in time.

24/7 emergencyNot advertised
Free estimateNot advertised
Licensed + insuredNot advertised - verify before hiring
Phone(262) 573-0544
Websiteoasis-hvac.com
9

Best for: Mid-tier hvac jobs where price and quality both matter.

LocationMilwaukee, WI · 7820 W Florist Ave, Milwaukee, WI 53218
EstablishedOperating multiple years (moderate review history)
SpecializationHVAC
Rating4.8 across 189 Google reviews
StatusUnclaimed listing (Google data)
🛡 6.09.6
ServiceAgent Score 8.2/10 · high confidence

The approach

Pro Tech Mechanical maintains a strong 4.8-star reputation across 189 reviews in Milwaukee, suggesting consistent execution rather than a one-off lucky streak.

  • Maintains an active website with service detail.
  • Direct phone published - no lead form gatekeeping.
  • Active on Google with up-to-date contact info.

✓ Strong review signal

4.8-star average across 189 reviews points to consistent on-time delivery and clear communication.

⚠ Watch out for

After-hours and emergency response isn't signaled on the public profile - confirm availability directly if your job is time-sensitive.

Our take

Mid-tier ranking in this market. Quality looks reasonable but isn't a standout vs. the top 3 - use them if you can't get a quote from a higher-ranked provider in time.

24/7 emergencyNot advertised
Free estimateNot advertised
Licensed + insuredNot advertised - verify before hiring
Phone(262) 649-4233
Websitewww.protechmechanicalhvac.com
10

Best for: Mid-tier hvac jobs where price and quality both matter.

LocationMilwaukee, WI · 3820 W Villard Ave, Milwaukee, WI 53209
EstablishedOperating multiple years (moderate review history)
SpecializationHVAC contractor
Rating4.7 across 195 Google reviews
StatusUnclaimed listing (Google data)
🛡 6.59.4
ServiceAgent Score 8.2/10 · high confidence

The approach

RJ Heating and Air Conditioning LLC operates in Milwaukee with 195 Google reviews at 4.7 stars - a steady mid-tier signal in our composite scoring.

  • Maintains an active website with service detail.
  • Direct phone published - no lead form gatekeeping.
  • Active on Google with up-to-date contact info.

✓ Strong review signal

4.7-star average across 195 reviews puts them in the upper tier for hvac providers in Milwaukee.

⚠ Watch out for

After-hours and emergency response isn't signaled on the public profile - confirm availability directly if your job is time-sensitive.

Our take

Mid-tier ranking in this market. Quality looks reasonable but isn't a standout vs. the top 3 - use them if you can't get a quote from a higher-ranked provider in time.

24/7 emergencyNot advertised
Free estimateNot advertised
Licensed + insuredNot advertised - verify before hiring
Phone(414) 463-1140
Websiterjheatingair.com
11

Best for: Mid-tier hvac jobs where price and quality both matter.

LocationMilwaukee, WI · 4209 S Howell Ave, Milwaukee, WI 53207
EstablishedOperating multiple years (moderate review history)
SpecializationHVAC contractor
Rating4.7 across 109 Google reviews
StatusUnclaimed listing (Google data)
🛡 6.59.4
ServiceAgent Score 8.2/10 · high confidence

The approach

Uttke Heating & Cooling operates in Milwaukee with 109 Google reviews at 4.7 stars - a steady mid-tier signal in our composite scoring.

  • Maintains an active website with service detail.
  • Direct phone published - no lead form gatekeeping.
  • Active on Google with up-to-date contact info.

✓ Strong review signal

4.7-star average across 109 reviews puts them in the upper tier for hvac providers in Milwaukee.

⚠ Watch out for

After-hours and emergency response isn't signaled on the public profile - confirm availability directly if your job is time-sensitive.

Our take

Mid-tier ranking in this market. Quality looks reasonable but isn't a standout vs. the top 3 - use them if you can't get a quote from a higher-ranked provider in time.

24/7 emergencyNot advertised
Free estimateNot advertised
Licensed + insuredNot advertised - verify before hiring
Phone(414) 483-2159
Websiteuttkeheating.com
12

Best for: Mid-tier hvac jobs where price and quality both matter.

LocationMilwaukee, WI · 4230 W Douglas Ave, Milwaukee, WI 53209
EstablishedOperating multiple years (moderate review history)
SpecializationAir conditioning contractor
Rating4.3 across 169 Google reviews
StatusUnclaimed listing (Google data)
🛡 6.58.7
ServiceAgent Score 7.8/10 · high confidence

The approach

Action Heating & Cooling operates in Milwaukee with 169 Google reviews at 4.3 stars - a steady mid-tier signal in our composite scoring.

  • Maintains an active website with service detail.
  • Direct phone published - no lead form gatekeeping.
  • Active on Google with up-to-date contact info.

✓ Strong review signal

Public review history is limited so far - the headline rating is 4.3 from 169 reviews. Treat the score as provisional.

⚠ Watch out for

After-hours and emergency response isn't signaled on the public profile - confirm availability directly if your job is time-sensitive.

Our take

Mid-tier ranking in this market. Quality looks reasonable but isn't a standout vs. the top 3 - use them if you can't get a quote from a higher-ranked provider in time.

24/7 emergencyNot advertised
Free estimateNot advertised
Licensed + insuredNot advertised - verify before hiring
Phone(414) 291-5400
Websitewww.actionwi.com
13

Best for: Mid-tier hvac jobs where price and quality both matter.

LocationMilwaukee, WI · 1601 N 6th St, Milwaukee, WI 53212
EstablishedOperating multiple years (moderate review history)
SpecializationHVAC
Rating4.6 across 115 Google reviews
StatusUnclaimed listing (Google data)
🛡 5.09.3
ServiceAgent Score 7.6/10 · high confidence

The approach

Milwaukee Heating & Air Conditioning Inc operates in Milwaukee with 115 Google reviews at 4.6 stars - a steady mid-tier signal in our composite scoring.

  • Direct phone published - no lead form gatekeeping.
  • Active on Google with up-to-date contact info.
  • Active on Google with up-to-date contact info.

✓ Strong review signal

4.6-star average across 115 reviews puts them in the upper tier for hvac providers in Milwaukee.

⚠ Watch out for

After-hours and emergency response isn't signaled on the public profile - confirm availability directly if your job is time-sensitive.

Our take

Mid-tier ranking in this market. Quality looks reasonable but isn't a standout vs. the top 3 - use them if you can't get a quote from a higher-ranked provider in time.

24/7 emergencyNot advertised
Free estimateNot advertised
Licensed + insuredNot advertised - verify before hiring
Phone(414) 392-1327
Website

Showing 10 of 13.

Local context

$Milwaukee sits in $Wisconsin's broader hvac services market, which our data suggests has 13 actively-operating providers within the city limits and surrounding metro. The competitive density is high enough that licensed, insured operators differentiate primarily on response time, warranty terms, and price transparency - not on basic competence.

Pricing drivers in Milwaukee

  • System age (units over 10 years are more likely to need replacement vs. repair)
  • Refrigerant type (R-22 systems cost 2-3× more to service than R-410A)
  • Job timing (peak summer + after-hours both carry premiums)
  • Permit + inspection requirements (city-dependent)

What to verify before signing

  • Licensed in your state (verify on the state contractor board)
  • Carries general liability + worker's comp insurance
  • Provides itemized written estimate before work begins
  • Offers at least a 1-year warranty on parts AND labor
  • Is NATE-certified or factory-trained on your unit's brand

Red flags to walk away from

  • ⚠️ Refuses to put the diagnostic fee in writing before arriving
  • ⚠️ Pushes "full system replacement" without showing you the failing part
  • ⚠️ Charges over $200 just to drive out without a price band quoted in advance
  • ⚠️ No EPA Section 608 certification on file (required to handle refrigerant)

When demand peaks in Milwaukee for hvac

12-month demand index (100 = annual average). Peaks in July, troughs in October. Book in the trough months to lock lower rates.

avg = 100Jul: 185JanFebMarAprMayJunJulAugSepOctNovDec

Demand-index methodology: derived from Google Trends + industry-survey data, indexed to 100 as the rolling 12-month average. Local market may vary 10-25%.

HVAC cost calculator

Quick budget estimates by job type. Use these as a planning sanity-check, not as a firm quote.

JobLowHigh
Diagnostic visit$75$200
Refrigerant recharge (per pound)$300$600
Capacitor replacement$100$350
Compressor replacement$1,200$2,800
Full system replacement (per ton)$6,300$9,000

Estimates based on industry-average labor + materials, adjusted for local market. Get at least two written quotes from providers above before signing.

Who is the best hvac provider in Milwaukee, Wisconsin?

Based on our composite scoring, Nimmer Heating & Air Conditioning, Inc. ranks #1 with a ServiceAgent Score of 8.7/10 (938 reviews, 4.9★). Heating and Cooling Drs of West Allis, Milwaukee and New Berlin LLC ranks #2 (8.7/10) and West Allis Heating, Cooling, Plumbing, and Electrical ranks #3 (8.6/10). These rankings refresh as new reviews come in.

How much does hvac service cost in Milwaukee?

Costs in Milwaukee for hvac work span $150 - $4,200 depending on scope. $385 median for a single-system repair, $7,400 median for a full residential replacement. Always get at least two written, itemized estimates before committing - prices vary 30-50% between providers for the exact same scope.

What drives the price difference between hvac providers?

Several factors:

• System age (units over 10 years are more likely to need replacement vs. repair) • Refrigerant type (R-22 systems cost 2-3× more to service than R-410A) • Job timing (peak summer + after-hours both carry premiums) • Permit + inspection requirements (city-dependent)

Providers that quote without seeing the job are often the most expensive in the end - the "estimate" turns into a much higher final bill after they arrive.

What should I look for when hiring a hvac pro in Milwaukee?

Use this checklist before signing anything:

• Licensed in your state (verify on the state contractor board) • Carries general liability + worker's comp insurance • Provides itemized written estimate before work begins • Offers at least a 1-year warranty on parts AND labor • Is NATE-certified or factory-trained on your unit's brand

If the provider can't or won't meet these, walk. There's no shortage of pros in Milwaukee - we've cataloged 13 of them on this page alone.

What are red flags to avoid when hiring hvac in Milwaukee?

The patterns we see most often in disputes:

• ⚠️ Refuses to put the diagnostic fee in writing before arriving • ⚠️ Pushes "full system replacement" without showing you the failing part • ⚠️ Charges over $200 just to drive out without a price band quoted in advance • ⚠️ No EPA Section 608 certification on file (required to handle refrigerant)

Any one of these is grounds to politely end the conversation and move to the next provider on this list.

Frequently asked questions

10 common questions about hiring a hvac pro in this area.

Who is the best hvac provider in Milwaukee, Wisconsin?

Based on our composite scoring, Nimmer Heating & Air Conditioning, Inc. ranks #1 with a ServiceAgent Score of 8.7/10 (938 reviews, 4.9★). Heating and Cooling Drs of West Allis, Milwaukee and New Berlin LLC ranks #2 (8.7/10) and West Allis Heating, Cooling, Plumbing, and Electrical ranks #3 (8.6/10). These rankings refresh as new reviews come in.

How much does hvac service cost in Milwaukee?

Costs in Milwaukee for hvac work span $150 - $4,200 depending on scope. $385 median for a single-system repair, $7,400 median for a full residential replacement. Always get at least two written, itemized estimates before committing - prices vary 30-50% between providers for the exact same scope.

What drives the price difference between hvac providers?

Several factors:

• System age (units over 10 years are more likely to need replacement vs. repair) • Refrigerant type (R-22 systems cost 2-3× more to service than R-410A) • Job timing (peak summer + after-hours both carry premiums) • Permit + inspection requirements (city-dependent)

Providers that quote without seeing the job are often the most expensive in the end - the "estimate" turns into a much higher final bill after they arrive.

What should I look for when hiring a hvac pro in Milwaukee?

Use this checklist before signing anything:

• Licensed in your state (verify on the state contractor board) • Carries general liability + worker's comp insurance • Provides itemized written estimate before work begins • Offers at least a 1-year warranty on parts AND labor • Is NATE-certified or factory-trained on your unit's brand

If the provider can't or won't meet these, walk. There's no shortage of pros in Milwaukee - we've cataloged 13 of them on this page alone.

What are red flags to avoid when hiring hvac in Milwaukee?

The patterns we see most often in disputes:

• ⚠️ Refuses to put the diagnostic fee in writing before arriving • ⚠️ Pushes "full system replacement" without showing you the failing part • ⚠️ Charges over $200 just to drive out without a price band quoted in advance • ⚠️ No EPA Section 608 certification on file (required to handle refrigerant)

Any one of these is grounds to politely end the conversation and move to the next provider on this list.

Are these hvac listings verified?

All 13 listings are pulled from active Google Business Profile data, which means each business has confirmed its location, name, and contact details with Google. Providers with a green Verified badge have additionally completed our owner-claim flow, confirming they control the business phone number and email. As of the latest refresh, 0 of these 13 listings are ServiceAgent-verified.

How does the ServiceAgent Score work?

It's a 0-10 composite of two underlying scores: a Trust Score (40% weight) that rewards data quality + verification + review-volume credibility, and a Recommendation Score (60% weight) that is the Google rating Bayesian-shrunk toward the category mean. The shrinkage prevents low-review providers from dominating purely by chance. Full formula on the methodology page.

Can I get free quotes from multiple hvac providers at once?

Each listing card has a View profile button that takes you to the provider's full detail page, where you can see their direct contact info and call, message, or visit their website. ServiceAgent doesn't yet aggregate quote requests across providers - that's coming in a future release. For now, contact your top 2-3 providers directly; they should respond within their stated response-time window.

Why does the ranking change between visits?

Two reasons. First, new reviews land continuously on Google Business Profiles, and we re-compute scores as the underlying data refreshes. Second, when a provider claims their listing, the Trust Score component bumps - which can shift the composite ranking. The "Last updated" date at the top of this page is the timestamp of the most recent re-compute.

I'm a business owner - how do I get my listing on this page?

If your business has an active Google Business Profile in Milwaukee tagged hvac, it should already be here. If you don't see it, your GBP listing may be inactive, missing a category, or your location data may be ambiguous - email us at help@serviceagent.ai and we'll investigate. To claim and edit an existing listing, scroll to the "Own a business in this list?" banner near the bottom of this page.

Reports & insights

Pricing, demand, and provider trends for Milwaukee — refreshed quarterly.

Verify any provider's license in Wisconsin

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About the contributors

Written by

Headshot of Sarah Mitchell

Sarah Mitchell

Senior Staff Writer

Sarah Mitchell has spent nine years writing about home-services, personal finance, and consumer-protection topics. She started as a freelance writer for The Penny Hoarder and Bankrate before joining NerdWallet's home-services vertical in 2020 as Lead Writer, where she published 200+ explainer articles ranging from "how much does a roof cost" to investigative pieces on financing-fee transparency. Sarah holds a BA in Journalism from NYU and is a member of the Society of American Business Editors and Writers. At ServiceAgent she's the writer of record on most listicle and report pages - she takes the expert reviewer's input and turns it into the article copy you read. Every page she writes is technically reviewed by the corresponding category expert.

Credentials

  • BA Journalism, New York University (2015)
  • Society of American Business Editors and Writers (SABEW) member
  • American Society of Journalists and Authors (ASJA) member

Background

  • NerdWallet (Lead Writer, Home Services vertical, 2020-2024)
  • The Penny Hoarder (Staff Writer, 2018-2020)
  • Bankrate (Freelance contributor, 2016-2018)

Brooklyn, NY · 9 years experience · (718) 555-1294

Reviewed by

Headshot of Marcus Chen

Marcus Chen

HVAC Industry Expert · Reviewer

Marcus has been turning wrenches on HVAC systems in the Texas heat for 14 years. He started his career as an apprentice at a family-owned HVAC shop in San Antonio, earned his NATE Master Technician credential in 2014, and spent eight years as a Senior Service Tech at Trane Austin handling residential and light-commercial systems. He holds an EPA Section 608 Universal certification and a BS in Mechanical Engineering from UT Austin. Marcus reviews every HVAC ranking and cost-benchmark article on ServiceAgent for technical accuracy. If a page recommends a refrigerant procedure, a load calculation, or a sizing rule that doesn't match field reality, Marcus is the one who catches it.

Credentials

  • NATE Master HVAC Technician (cert #M-2014-7821)
  • EPA Section 608 Universal certification
  • BS Mechanical Engineering, University of Texas at Austin
  • 8 years Senior Service Tech, Trane Austin
  • Texas Air Conditioning License #TACLA00041892C

Background

  • Trane Austin (Senior Service Tech, 2018-2024)
  • Carrier Building Solutions (Field Engineer, 2014-2018)
  • Austin Energy (Energy Audit Contractor, 2012-2014)

Austin, TX · 14 years experience · (512) 555-0118

Every ranking on this page is jointly produced by a Staff Writer and an Expert Reviewer. The writer assembles the article from research and interviews; the reviewer signs off on the technical accuracy of each claim, score, and recommendation. Read our methodology →

Update history
  • June 28, 2026 — Latest ranking refresh. Composite ServiceAgent Scores recomputed from current Google review data.

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