1,396 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Chicago: Four Seasons Heating, Air Conditioning, Plumbing, & Electric, CR Score 95/100; 4.7★ from 27,709 Google reviews; open 24/7.
Best for emergencies (open 24/7): Deljo Heating, Cooling & Plumbing, posts 24/7 hours; ranked #2 of 1,396.
Most-reviewed: Four Seasons Heating, Air Conditioning, Plumbing, & Electric, 4,200 Google reviews at 4.7★, the most of 1,396 ranked after Four Seasons Heating, Air Conditioning, Plumbing, & Electric; ranked #39.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
1,396 Chicago HVAC contractors are ranked here by CR Score, from 8 published factors. 561 are open 24/7, 1,070 open Saturdays and 856 open Sundays, based on posted hours. The median Google rating is 4.9★ across 1,396 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Four Seasons Heating, Air Conditioning, Plumbing, & Electric | 95 | 4.7★ (27,709) | Chicago | 24/7 | Overall |
| 2 | Deljo Heating, Cooling & Plumbing | 94 | 4.9★ (3,196) | Chicago | 24/7 | Emergencies |
| 3 | All Temp Heating and Air Conditioning | 93 | 4.9★ (2,253) | Chicago | 24/7 | — |
| 4 | Besco Air Inc. | 92 | 4.9★ (1,342) | Chicago | 24/7 | — |
| 5 | Goode Plumbing | 92 | 4.8★ (2,374) | Chicago | 24/7 | — |
| 6 | Oasis Plumbing, Heating & Cooling | 92 | 4.9★ (1,055) | Chicago | 24/7 | — |
| 7 | Guardian Heating & Cooling Service | 91 | 4.8★ (1,189) | Chicago | 24/7 | — |
| 8 | Hero Air | 91 | 5.0★ (272) | Chicago | 24/7 | — |
| 9 | Heatmasters | 91 | 4.8★ (708) | Chicago | 24/7 | — |
| 10 | Pro Comfort Solutions | 91 | 5.0★ (187) | Chicago | 24/7 | — |
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.
Ranked #1 because of its Google rating and review volume: 4.7★ from 27,709 Google reviews, the most Google reviews on this list (27,709).
Based in Chicago
Ranked #2 because of its Google rating and availability: 4.9★ from 3,196 Google reviews, open 24/7.
Based in Chicago
Ranked #3 because of its Google rating and availability: 4.9★ from 2,253 Google reviews, open 24/7.
Based in Chicago
Ranked #4 because of its Google rating and availability: 4.9★ from 1,342 Google reviews, open 24/7.
Based in Chicago
Ranked #5 because of its Google rating and availability: 4.8★ from 2,374 Google reviews, open 24/7.
Based in Chicago
Ranked #6 because of its Google rating and availability: 4.9★ from 1,055 Google reviews, open 24/7.
Based in Chicago
Ranked #7 because of its Google rating and availability: 4.8★ from 1,189 Google reviews, open 24/7.
Based in Chicago
Ranked #8 because of its Google rating and availability: 5.0★ from 272 Google reviews, open 24/7.
Based in Chicago
Ranked #9 because of its Google rating and availability: 4.8★ from 708 Google reviews, open 24/7.
Based in Chicago
Ranked #10 because of its Google rating and availability: 5.0★ from 187 Google reviews, open 24/7.
Based in Chicago
Ranked #11 because of its Google rating and availability: 4.9★ from 297 Google reviews, open 24/7.
Based in Chicago
Ranked #12 because of its Google rating and availability: 5.0★ from 174 Google reviews, open 24/7.
Based in Chicago
Ranked #13 because of its Google rating and availability: 4.8★ from 500 Google reviews, open 24/7.
Based in Chicago
Ranked #14 because of its Google rating and availability: 4.9★ from 242 Google reviews, open 24/7.
Based in Chicago
Ranked #15 because of its Google rating and availability: 5.0★ from 143 Google reviews, open 24/7.
Based in Chicago
Ranked #16 because of its Google rating and availability: 5.0★ from 141 Google reviews, open 24/7.
Based in Skokie, 13 mi away
Ranked #17 because of its Google rating and availability: 4.9★ from 2,707 Google reviews, open 24/7.
Based in Chicago
Ranked #18 because of its Google rating and availability: 5.0★ from 137 Google reviews, open 24/7.
Based in Chicago
Ranked #19 because of its Google rating and availability: 4.9★ from 213 Google reviews, open 24/7.
Based in Chicago
Ranked #20 because of its Google rating and availability: 4.9★ from 199 Google reviews, open 24/7.
Based in Franklin Park, 13 mi away
Ranked #21 because of its Google rating and availability: 4.9★ from 2,121 Google reviews, open 24/7.
Based in Chicago
Ranked #22 because of its Google rating and availability: 5.0★ from 115 Google reviews, open 24/7.
Based in Chicago
Ranked #23 because of its Google rating and availability: 4.9★ from 176 Google reviews, open 24/7.
Based in Chicago
Ranked #24 because of its Google rating and availability: 5.0★ from 106 Google reviews, open 24/7.
Based in Chicago
Ranked #25 because of its Google rating and availability: 4.9★ from 156 Google reviews, open 24/7.
#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 1,396 ranked HVAC contractors here; the rest are on their profiles.
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.
National price ranges in USD, not adjusted for Chicago. 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 |
In Illinois, 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.
We scored 1,396 Chicago 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 Chicago 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 |