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The Trades List / Chicago / HVAC contractors

The 10 best HVAC contractors in Chicago2027 edition

446 Google listings examined 107 eligible businesses Score out of 10, not the same as Google stars

As of October 2026, the three best HVAC contractors in Chicago according to The Trades List are Four Seasons (9.3/10), All Temp Heating and Air Conditioning (9.2/10) and Deljo Heating, Cooling & Plumbing (9.2/10), out of 107 eligible businesses.

We examined the Google listings for HVAC contractors located in Chicago rated 4 out of 5 or higher, read the recent reviews of the best-placed ones, then calculated a score out of 10 using four criteria. No business paid to appear here, and none can pay to move up. Full methodology.

Tools hanging on a workshop wall 1 9.3 Illustration photo
Number one

Four Seasons

W 73rd St, Chicago

4.7 average from 32,073 reviews, 85% of them five-star. At least 120 reviews in the last 12 months; it replied to 100% of the 120 most recent.

Google review breakdown
5 ★ 27,375
4 ★ 2,480
3 ★ 411
2 ★ 318
1 ★ 1,489

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  1. 2 9.2

    All Temp Heating and Air Conditioning

    W Montrose Ave, Chicago

    4.9 average from 2,582 reviews, 96% of them five-star. At least 120 reviews in the last 12 months; it replied to 98% of the 120 most recent.

    4.9 ★ · 2,582 reviews 96% five-star

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  2. 3 9.2

    Deljo Heating, Cooling & Plumbing

    W Bryn Mawr Ave, Chicago

    4.9 average from 3,441 reviews, 95% of them five-star. At least 120 reviews in the last 12 months; it replied to 92% of the 120 most recent.

    4.9 ★ · 3,441 reviews 95% five-star

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  3. 4 9.1

    Oasis Plumbing, Heating & Cooling

    N Western Ave, Chicago

    4.9 average from 1,473 reviews, 97% of them five-star. At least 120 reviews in the last 12 months; it replied to 98% of the 120 most recent.

    4.9 ★ · 1,473 reviews 97% five-star

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  4. 5 9.1

    Besco Air Inc.

    N Northwest Hwy, Chicago

    4.9 average from 1,515 reviews, 96% of them five-star. At least 120 reviews in the last 12 months; it replied to 90% of the 120 most recent.

    4.9 ★ · 1,515 reviews 96% five-star

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  5. 6 8.9

    Guardian Heating & Cooling Service

    N Central Park Ave, Chicago

    4.8 average from 1,242 reviews, 94% of them five-star. At least 120 reviews in the last 12 months; it replied to 99% of the 120 most recent.

    4.8 ★ · 1,242 reviews 94% five-star

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  6. 7 8.9

    Pro Comfort Solutions

    N Latrobe Ave, Chicago

    5.0 average from 294 reviews, 99% of them five-star. At least 120 reviews in the last 12 months; it replied to 100% of the 120 most recent.

    5.0 ★ · 294 reviews 99% five-star

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  7. 8 8.9

    Pro HVAC Heating and Cooling

    N Damen Ave 2R, Chicago

    5.0 average from 202 reviews, 100% of them five-star. At least 120 reviews in the last 12 months; it replied to 99% of the 120 most recent.

    5.0 ★ · 202 reviews 100% five-star

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  8. 9 8.8

    Hero Air

    W Patterson Ave, Chicago

    5.0 average from 387 reviews, 98% of them five-star. At least 120 reviews in the last 12 months; it replied to 84% of the 120 most recent.

    5.0 ★ · 387 reviews 98% five-star

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  9. 10 8.8

    Five Star HVAC Services, Inc.

    N Elston Ave, Chicago

    4.9 average from 457 reviews, 95% of them five-star. At least 120 reviews in the last 12 months; it replied to 100% of the 120 most recent.

    4.9 ★ · 457 reviews 95% five-star

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The Top 10 at a glance

RankBusinessScore /10Google ratingReviewsReplies to reviews (12 months)Area
1Four Seasons9.34.7 ★32,073100%W 73rd St, Chicago
2All Temp Heating and Air Conditioning9.24.9 ★2,58298%W Montrose Ave, Chicago
3Deljo Heating, Cooling & Plumbing9.24.9 ★3,44192%W Bryn Mawr Ave, Chicago
4Oasis Plumbing, Heating & Cooling9.14.9 ★1,47398%N Western Ave, Chicago
5Besco Air Inc.9.14.9 ★1,51590%N Northwest Hwy, Chicago
6Guardian Heating & Cooling Service8.94.8 ★1,24299%N Central Park Ave, Chicago
7Pro Comfort Solutions8.95.0 ★294100%N Latrobe Ave, Chicago
8Pro HVAC Heating and Cooling8.95.0 ★20299%N Damen Ave 2R, Chicago
9Hero Air8.85.0 ★38784%W Patterson Ave, Chicago
10Five Star HVAC Services, Inc.8.84.9 ★457100%N Elston Ave, Chicago

How this score is calculated

A business is ranked only if it is located in Chicago, open, and has at least 25 Google reviews; its City license is being checked. It then gets a score out of 10 on each of the four criteria below.

  1. Satisfaction

    The Google star rating on its full scale (5 stars score 10), adjusted for the number of reviews: a 5.0 from eight reviews does not beat a 4.8 from three hundred.

    Weight 70 %

  2. Volume

    The total number of reviews, compared with the most-reviewed business in the same trade in the city, which scores 10.

    Weight 15 %

  3. Recency

    The number and rating of reviews received in the last twelve months. A business has to be good now, not five years ago.

    Weight 10 %

  4. Response to customers

    The share of reviews from the last twelve months that the business answered publicly.

    Weight 5 %

About this calculation

  • 446 Google listings of HVAC contractors rated 4 out of 5 or higher were examined in October 2026. 107 are located in the City of Chicago, open, and have at least 25 reviews. When one business has several listings, only the main one is kept.
  • Recency and Response: for the best-placed businesses, we read the most recent Google reviews, up to 120 per listing, with their rating and whether the owner replied. When all 120 reviews read are less than a year old, the business received more than 100 in the year: recency gets the top mark.
  • A business is ranked in the trade its recent reviews talk about most, and in one trade only. Handymen, booking platforms and stores are not ranked. Gutter specialists are not ranked as roofers.
  • In Chicago, the score rests on four criteria: satisfaction 70%, volume 15%, recency 10%, response 5%. Satisfaction uses the full Google star scale: 5 stars score 10. Volume is measured against the most-reviewed business in the same trade in Chicago. Seniority and record will be added with the City license check.
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Other rankings in Chicago

Eligible businesses

These 97 businesses meet all three conditions but are not in the top 10 at this calculation. They are listed alphabetically, without a rank.