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Best HVAC Contractors in Fitchburg, WI (2026)

85 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Fitchburg: Cardinal Heating, Cooling, Plumbing, & Electric, CR Score 65/100; 5.0★ from 388 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Harker Heating & Cooling, posts 24/7 hours; ranked #2 of 85.

  3. 5

    Most-reviewed: Cardinal Heating, Cooling, Plumbing & Electric, 4,888 Google reviews at 4.9★, the most of 85 ranked; ranked #5.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

85 Fitchburg HVAC contractors are ranked here by CR Score, from ten published factors. 24 are open 24/7, 41 open Saturdays and 35 open Sundays, based on posted hours. The median Google rating is 4.8★ across 85 rated businesses.

Most of this list also appears on the HVAC contractors in Madison ranking. See HVAC contractors in Madison

Top 10 HVAC contractors in Fitchburg at a glance

Top 10 HVAC contractors in Fitchburg at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Cardinal Heating, Cooling, Plumbing, & Electric655.0★ (388)Fitchburg24/7Overall
2Harker Heating & Cooling654.9★ (1,721)Madison, 7 mi away24/7Emergencies
3Action Plumbing, Heating, Air Conditioning and Electric, Inc.654.9★ (1,042)Madison, 5 mi away24/7—
4All Comfort Services644.8★ (3,441)Madison, 11 mi away24/7—
5Cardinal Heating, Cooling, Plumbing & Electric644.9★ (4,888)Sun Prairie, 18 mi away24/7Most reviews
6RG Heating Cooling Plumbing634.9★ (1,820)Waunakee, 16 mi away24/7—
7Aire Serv of Madison624.9★ (497)McFarland, 10 mi away24/7—
8BETHKE Heating & Air Conditioning, Inc.624.8★ (261)Verona, 4 mi away24/7—
9Action Plumbing, Heating, Air Conditioning and Electric, Inc.614.9★ (200)Middleton, 10 mi away24/7—
10TradeWinds Heating & Air Conditioning Inc.615.0★ (223)Madison, 13 mi away24/7—

The 85 best HVAC contractors in Fitchburg, ranked

Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.

  2. #2 Harker Heating & Cooling

    Based in Madison, 7 mi away

    65/100CR Score

    Ranked #2 because of its Google rating and trade focus: 4.9★ from 1,721 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.9★ from 1,721 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    87 Nob Hill Rd, Madison, WI 53713
    View profile for Harker Heating & Cooling(608) 630-9873

  3. #3 Action Plumbing, Heating, Air Conditioning and Electric, Inc.

    Based in Madison, 5 mi away

    65/100CR Score

    Ranked #3 because of its Google rating and trade focus: 4.9★ from 1,042 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.9★ from 1,042 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1338 S Midvale Blvd, Madison, WI 53711
    View profile for Action Plumbing, Heating, Air Conditioning and Electric, Inc.(608) 291-7148

  4. #4 All Comfort Services

    Based in Madison, 11 mi away

    64/100CR Score

    Ranked #4 because of its Google rating and trade focus: 4.8★ from 3,441 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.8★ from 3,441 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    5245 Voges Rd, Madison, WI 53718
    View profile for All Comfort Services(608) 286-3924

  6. #6 RG Heating Cooling Plumbing

    Based in Waunakee, 16 mi away

    63/100CR Score

    Ranked #6 because of its Google rating and trade focus: 4.9★ from 1,820 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.9★ from 1,820 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1091 Uniek Dr, Waunakee, WI 53597
    View profile for RG Heating Cooling Plumbing(608) 849-6728

  7. #7 Aire Serv of Madison

    Based in McFarland, 10 mi away

    62/100CR Score

    Ranked #7 because of its Google rating and trade focus: 4.9★ from 497 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.9★ from 497 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    4719 Ivywood Trail, McFarland, WI 53558
    View profile for Aire Serv of Madison(608) 554-5042

  9. #9 Action Plumbing, Heating, Air Conditioning and Electric, Inc.

    Based in Middleton, 10 mi away

    61/100CR Score

    Ranked #9 because of its Google rating and trade focus: 4.9★ from 200 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.9★ from 200 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    8505 University Green Suite #113, Middleton, WI 53562
    View profile for Action Plumbing, Heating, Air Conditioning and Electric, Inc.(608) 291-5623

  10. #10 TradeWinds Heating & Air Conditioning Inc.

    Based in Madison, 13 mi away

    61/100CR Score

    Ranked #10 because of its Google rating and trade focus: 5.0★ from 223 Google reviews, listed on Google as “Air conditioning contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 223 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1412 Parkside Dr Ste 1210 Suite 1210, Madison, WI 53704
    View profile for TradeWinds Heating & Air Conditioning Inc.(608) 709-1251

  11. #11 Southport Home Services

    Based in Madison, 11 mi away

    61/100CR Score

    Ranked #11 because of its Google rating and trade focus: 4.9★ from 174 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.9★ from 174 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    3304 Dairy Dr, Madison, WI 53718
    View profile for Southport Home Services(608) 560-5464

  12. #12 High Tech Heating & A/C, Inc.

    Based in Cottage Grove, 17 mi away

    60/100CR Score

    Ranked #12 because of its Google rating and trade focus: 4.9★ from 362 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.9★ from 362 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2395 E Cottage Grove Rd, Cottage Grove, WI 53527
    View profile for High Tech Heating & A/C, Inc.(608) 221-8333

  13. #13 Action Plumbing, Heating, Air Conditioning and Electric, Inc.

    Based in Sun Prairie, 19 mi away

    60/100CR Score

    Ranked #13 because of its Google rating and trade focus: 4.7★ from 1,128 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.7★ from 1,128 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    899 S Bird St, Sun Prairie, WI 53590
    View profile for Action Plumbing, Heating, Air Conditioning and Electric, Inc.(608) 218-5276

  15. #15 Brothers HVAC, LLC

    Based in Oregon, 3 mi away

    59/100CR Score

    Ranked #15 because of its Google rating and trade focus: 5.0★ from 249 Google reviews, listed on Google as “Heating contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 249 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    1331 County Rd D, Oregon, WI 53575
    View profile for Brothers HVAC, LLC(608) 291-0252

  16. #16 Forward Heating and Cooling

    Based in Madison, 6 mi away

    58/100CR Score

    Ranked #16 because of its Google rating and trade focus: 5.0★ from 43 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 43 Google reviews
    Hours
    Mon–Fri 6 AM–9 PM · Sat–Sun 7 AM–5 PM
    Address
    906 Watson Ave, Madison, WI 53713
    View profile for Forward Heating and Cooling(608) 230-6638

  17. #17 Air4U

    Based in Fitchburg

    58/100CR Score

    Ranked #17 because of its Google rating and trade focus: 4.2★ from 10 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.2★ from 10 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for Air4U(608) 852-3642

  18. #18 Hawthorne HVAC and Repair

    Based in Fitchburg

    58/100CR Score

    Ranked #18 because of its Google rating and trade focus: 5.0★ from 16 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 16 Google reviews
    Hours
    Mon 7 AM–5 PM · Tue 7:30 AM–5 PM · Wed–Fri 7 AM–5 PM · Sat–Sun 9 AM–5 PM
    View profile for Hawthorne HVAC and Repair(608) 608-0995

  20. #20 Shackelford Heating & Cooling

    Based in Fitchburg

    58/100CR Score

    Ranked #20 because of its Google rating and trade focus: 4.9★ from 147 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.9★ from 147 Google reviews
    Hours
    Mon–Fri 7:30 AM–4 PM · Sat–Sun closed
    Address
    5555 Irish Ln, Fitchburg, WI 53711
    View profile for Shackelford Heating & Cooling(608) 835-7755

  21. #21 Clark Heating & Cooling Inc

    Based in Stoughton, 13 mi away

    57/100CR Score

    Ranked #21 because of its Google rating and trade focus: 4.6★ from 62 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.6★ from 62 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    201 Bus Park Cir, Stoughton, WI 53589
    View profile for Clark Heating & Cooling Inc(608) 873-8500

  22. #22 J&M HVAC of Michiana

    Based in Mishawaka, 11 mi away

    57/100CR Score

    Ranked #22 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “Heating contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 17 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for J&M HVAC of Michiana(574) 360-5006

  25. #25 Pharo Heating & Cooling, Inc.

    Based in Waunakee, 14 mi away

    57/100CR Score

    Ranked #25 because of its Google rating and trade focus: 4.9★ from 832 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.9★ from 832 Google reviews
    Hours
    Mon–Fri 7:30 AM–4:30 PM · Sat–Sun closed
    Address
    5341 W River Rd, Waunakee, WI 53597
    View profile for Pharo Heating & Cooling, Inc.(608) 849-5410

HVAC contractors ranked #26 to #42

#1 to #25 are shown in full above. Here are #26 to #42, in CR Score order; each links to its profile. We publish the top 42 of 85 ranked HVAC contractors here; the rest are on their profiles.

HVAC contractors in Fitchburg, ranks 26 to 42
RankBusinessCR ScoreGoogle ratingDistance
26Gold Star HVACR574.8★ (45)5 mi
27Greiber Heating & Sheet Metal, Inc.574.8★ (45)16 mi
28Troys Heating and Cooling564.9★ (21)15 mi
38Bohling Heating and Air Conditioning Inc554.7★ (33)21 mi
41GH Heating & Air, L.L.C.554.1★ (17)16 mi
42Madison Refrigeration & Heating543.2★ (13)11 mi

Also serving Fitchburg

1 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.

Unranked HVAC contractors serving Fitchburg
BusinessGoogle ratingDistance
Robert's Plumbing & Heating INC4.5★ (32)12 mi

How much do HVAC contractors cost in Fitchburg?

National price ranges in USD, not adjusted for Fitchburg. Each row names its basis and the month we checked it.

How much do HVAC contractors cost in Fitchburg?
JobLowTypicalHighBasisChecked
AC replacement$3,887$5,978$8,073Per system, installed (unit plus labor); typical range of customer-reported jobs. US national rangeOctober 2026
Furnace replacement$2,823$4,814$6,896Per system, installed; typical range of customer-reported jobs. US national rangeOctober 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 Fitchburg HVAC contractors

We scored 85 Fitchburg 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.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn Fitchburg data
Reputation25%Google star rating, adjusted for how many reviews back itMeasured
Credentials15%Active state license, bond and workers’ comp on fileNot yet collected
Review volume10%Number of Google reviews, compared with the most-reviewed business on the listMeasured
Recency5%Share of reviews from the last 12 monthsNot yet collected
Availability5%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%How clearly the business does this trade (its Google category and name)Measured
Proximity5%Based in the city scores highest, less the farther away it isMeasured
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)Measured
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodicallyMeasured
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there areMeasured

HVAC contractors in Fitchburg: frequently asked questions

Who is the best HVAC contractor in Fitchburg?

By CR Score, the highest-ranked HVAC contractor in Fitchburg, WI is Cardinal Heating, Cooling, Plumbing, & Electric with a CR Score of 65/100. It has 5.0★ from 388 Google reviews. It is open 24/7. Harker Heating & Cooling (#2) and Action Plumbing, Heating, Air Conditioning and Electric, Inc. (#3) follow. We ranked 85 HVAC contractors on ten factors, last updated October 23, 2026.

How many HVAC contractors are there in Fitchburg?

ContractorsRanked ranks 85 HVAC contractors serving Fitchburg, WI. 6 of them are based in Fitchburg; the rest serve it from nearby towns. Another 1 within 25 mi are listed but not ranked yet. Counts are as of October 2026.

Which HVAC contractors in Fitchburg are open 24/7?

24 ranked HVAC contractors in Fitchburg post 24/7 hours. The highest-ranked are Cardinal Heating, Cooling, Plumbing, & Electric (#1), Harker Heating & Cooling (#2) and Action Plumbing, Heating, Air Conditioning and Electric, Inc. (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which HVAC contractors in Fitchburg work on weekends?

41 of 85 ranked HVAC contractors post Saturday hours and 35 post Sunday hours. The highest-ranked open Saturdays are Cardinal Heating, Cooling, Plumbing, & Electric (#1), Harker Heating & Cooling (#2) and Action Plumbing, Heating, Air Conditioning and Electric, Inc. (#3). Posted hours are office hours; crews may book weekend jobs separately.

How much does ac replacement cost in Fitchburg?

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 Fitchburg. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Fitchburg HVAC contractors have?

The median Google rating among 85 rated HVAC contractors in Fitchburg is 4.8★, with a median of 30 reviews. Cardinal Heating, Cooling, Plumbing & Electric has the most, 4,888 reviews, and ranks #5. 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 Fitchburg?

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 ten published factors, led by reputation (25%), credentials (15%), review volume (10%) and trade focus (10%). A business with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.

Update log for Fitchburg

  1. October 2026: CR Scores recalculated for 85 hvac contractors serving Fitchburg.

More HVAC contractors and Fitchburg pages

Other trades in Fitchburg