Best HVAC companies in Greendale, WI

The highest-scoring HVAC company in and near Greendale is Thielmann Heating, Cooling & Plumbing (score 89, 4.9 stars from 2,033 Google reviews). 53 companies meet the 5 Star standard within about 16 miles; the top 30 are ranked below.

Last updated Nov 1, 2026How we rank
  1. 1

    Thielmann Heating, Cooling & Plumbing

    4.9 · 2,033 Google reviewsNew Berlin, WI97 years in business

    Thielmann Heating, Cooling & Plumbing serves New Berlin and communities across southeastern Wisconsin with heating, air conditioning, indoor air quality, and plumbing work. The company has operated since 1929 and prov…

    Financing availableEmergency service
    89SCORE
  2. 2

    Quality Heating, Cooling, Plumbing & Electric

    4.9 · 1,547 Google reviewsBrookfield, WI65 years in business

    Quality Heating, Cooling, Plumbing & Electric provides heating, cooling, plumbing, and electrical services across Metro Milwaukee and Southeastern Wisconsin. The locally owned and operated company has served the regio…

    Emergency service
    88SCORE
  3. 3

    Roman Home Services

    4.9 · 5,689 Google reviewsWest Allis, WI
    83SCORE
  4. 4

    Third Coast HVAC, AC & Furnace Repair

    5.0 · 543 Google reviewsBrookfield, WI

    Third Coast HVAC, AC & Furnace Repair provides heating, cooling, and indoor air quality services across Waukesha County and the Milwaukee metro area. The locally owned and operated company handles AC installation, mai…

    Financing availableEmergency service
    82SCORE
  5. 5

    On Time Heating & Cooling

    5.0 · 509 Google reviewsWaukesha, WI7 years in business

    On Time Heating & Cooling provides residential heating, cooling, boiler, heat pump, air duct cleaning, and indoor air quality services from its Waukesha base. Founded in 2019, the local, family-owned company handles r…

    Financing availableEmergency service
    82SCORE
  6. 6

    Heinrichs Home Comfort

    5.0 · 412 Google reviewsNew Berlin, WI
    81SCORE
  7. 7

    1st Choice Heating & Cooling

    4.9 · 1,166 Google reviewsMuskego, WI
    80SCORE
  8. 8

    Nimmer Heating & Air Conditioning, Inc.

    4.9 · 1,052 Google reviewsMilwaukee, WI
    80SCORE
  9. 9

    Absolute Comfort HVAC LLC

    5.0 · 353 Google reviewsWaukesha, WI
    80SCORE
  10. 10

    Pro Serv Plumbing, Heating, and Cooling

    5.0 · 312 Google reviewsWauwatosa, WI
    79SCORE
  11. 11

    West Allis Heating, Cooling, Plumbing, and Electrical

    4.8 · 2,768 Google reviewsMilwaukee, WI
    78SCORE
  12. 12

    E & R Heating and Cooling

    5.0 · 242 Google reviewsWest Allis, WI
    78SCORE
  13. 13

    Mr. Holland's Home Services

    4.8 · 2,112 Google reviewsNew Berlin, WI
    77SCORE
  14. 14

    Misurelli Sorensen Heating & Air Conditioning New Berlin

    4.9 · 528 Google reviewsNew Berlin, WI
    77SCORE
  15. 15

    New Berlin Heating & Air Conditioning

    4.8 · 1,321 Google reviewsNew Berlin, WI
    76SCORE
  16. 16

    Burkhardt Heating, Cooling, Plumbing & Electric

    4.9 · 578 Google reviewsBrookfield, WI
    76SCORE
  17. 17

    Capital Heating, Cooling, Electric, and Plumbing

    4.7 · 3,579 Google reviewsMenomonee Falls, WI
    74SCORE
  18. 18

    A-1 Milwaukee Heating and Cooling

    4.9 · 441 Google reviewsSouth Milwaukee, WI
    74SCORE
  19. 19

    D & M Heating and Air Conditioning

    4.8 · 639 Google reviewsMilwaukee, WI
    73SCORE
  20. 20

    ABC Plumbing, Sewer, Heating, Cooling & Electric

    4.8 · 570 Google reviewsWest Allis, WI
    73SCORE
  21. 21

    Prestige Heating & Cooling

    5.0 · 129 Google reviewsMenomonee Falls, WI
    73SCORE
  22. 22

    Over the Moon Heating, Air & Electric

    4.7 · 1,420 Google reviewsWaukesha, WI
    Emergency serviceFinancing availableBackground-checked
    72SCORE
  23. 23

    Pro Tech Mechanical

    4.9 · 218 Google reviewsMilwaukee, WI
    72SCORE
  24. 24

    Burant Heating & Air Conditioning LLC

    4.8 · 317 Google reviewsFranklin, WI
    71SCORE
  25. 25
    71SCORE
  26. 26

    Stramowski Heating Inc

    4.7 · 774 Google reviewsOak Creek, WI
    70SCORE
  27. 27

    Seider Heating, Plumbing & Electrical

    4.8 · 387 Google reviewsWaukesha, WI
    70SCORE
  28. 28

    Devix Heating and Cooling

    4.9 · 207 Google reviewsWest Allis, WI
    70SCORE
  29. 29

    Donovan & Jorgenson

    4.8 · 378 Google reviewsNew Berlin, WI
    69SCORE
  30. 30

    Lowe's Air Duct Cleaning

    4.9 · 268 Google reviewsMilwaukee, WI
    69SCORE

We list only companies that clear our published bar, so this area is still filling in. As more HVAC companies near Greendale qualify, they'll appear here automatically.

Compare the top 10

Top HVAC companies in Greendale by 5 Star Score
#CompanyScoreGoogle ratingReviewsYearsBased in
1Thielmann Heating, Cooling & Plumbing894.92,03397New Berlin
2Quality Heating, Cooling, Plumbing & Electric884.91,54765Brookfield
3Roman Home Services834.95,689–West Allis
4Third Coast HVAC, AC & Furnace Repair825.0543–Brookfield
5On Time Heating & Cooling825.05097Waukesha
6Heinrichs Home Comfort815.0412–New Berlin
71st Choice Heating & Cooling804.91,166–Muskego
8Nimmer Heating & Air Conditioning, Inc.804.91,052–Milwaukee
9Absolute Comfort HVAC LLC805.0353–Waukesha
10Pro Serv Plumbing, Heating, and Cooling795.0312–Wauwatosa

HVAC companies in Greendale: quick answers

Who is the highest-rated HVAC company in Greendale, WI?

Thielmann Heating, Cooling & Plumbing has the highest 5 Star Score among HVAC companies in and near Greendale: 89 out of 100, with a 4.9 star Google rating from 2,033 reviews.

How many 5 Star HVAC companies serve Greendale?

53 HVAC companies meet our standard within about 16 miles of Greendale: at least a 4.5 star rating, 20 or more reviews and a score of 60 or higher. The top 30 have 30,728 Google reviews between them, averaging 4.88 stars.

How are these HVAC companies ranked?

By 5 Star Score: rating quality adjusted for review count (45 points), review volume (25), review recency (15), years in business (10) and license verification (5). Businesses cannot pay to change their score.

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Ratings and review counts come from each company's public Google listing and are re-checked monthly. 5 Star Home Service Pros is independent; companies cannot pay for placement.