1,112 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Oak Forest: Four Seasons Heating, Air Conditioning, Plumbing, & Electric, CR Score 92/100; 4.8★ from 3,722 Google reviews; open 24/7.
Best for emergencies (open 24/7): King Heating, Cooling & Plumbing, posts 24/7 hours; ranked #2 of 1,112.
Most-reviewed: Four Seasons Heating, Air Conditioning, Plumbing, & Electric, 27,709 Google reviews at 4.7★, the most of 1,112 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
1,112 Oak Forest HVAC contractors are ranked here by CR Score, from 8 published factors. 449 are open 24/7, 866 open Saturdays and 663 open Sundays, based on posted hours. The median Google rating is 4.9★ across 1,112 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Four Seasons Heating, Air Conditioning, Plumbing, & Electric | 92 | 4.8★ (3,722) | Crestwood, 2 mi away | 24/7 | Overall |
| 2 | King Heating, Cooling & Plumbing | 92 | 4.7★ (3,996) | Oak Forest | 24/7 | Emergencies |
| 3 | Four Seasons Heating, Air Conditioning, Plumbing, & Electric | 92 | 4.7★ (27,709) | Chicago, 11 mi away | 24/7 | Most reviews |
| 4 | Air Source 1 Heating & Air Conditioning | 91 | 5.0★ (664) | Mokena, 6 mi away | 24/7 | — |
| 5 | Precision Heating and Cooling | 91 | 4.9★ (842) | Alsip, 5 mi away | 24/7 | — |
| 6 | J.J.R. Heating & Cooling Inc | 90 | 5.0★ (408) | Plainfield, 6 mi away | 24/7 | — |
| 7 | TR Miller Heating, Cooling, Plumbing and Electrical | 90 | 4.9★ (2,423) | Tinley Park, 12 mi away | 24/7 | — |
| 8 | Four Seasons Heating, Air Conditioning, Plumbing, & Electric | 90 | 4.7★ (4,200) | Bridgeview, 8 mi away | 24/7 | — |
| 9 | Allegiance Heating & Cooling | 90 | 4.9★ (440) | Mokena, 5 mi away | 24/7 | — |
| 10 | Comfortmate Bremen Service | 89 | 4.9★ (428) | Mokena, 6 mi away | 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 in Oak Forest
Based in Crestwood, 2 mi away
Ranked #1 because of its Google rating and availability: 4.8★ from 3,722 Google reviews, open 24/7.
Based in Oak Forest
Ranked #2 because of its Google rating and availability: 4.7★ from 3,996 Google reviews, open 24/7.
Based in Chicago, 11 mi away
Ranked #3 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 Mokena, 6 mi away
Ranked #4 because of its Google rating and availability: 5.0★ from 664 Google reviews, open 24/7.
Based in Alsip, 5 mi away
Ranked #5 because of its Google rating and availability: 4.9★ from 842 Google reviews, open 24/7.
Based in Plainfield, 6 mi away
Ranked #6 because of its Google rating and availability: 5.0★ from 408 Google reviews, open 24/7.
Based in Tinley Park, 12 mi away
Ranked #7 because of its Google rating and availability: 4.9★ from 2,423 Google reviews, open 24/7.
Based in Bridgeview, 8 mi away
Ranked #8 because of its Google rating and availability: 4.7★ from 4,200 Google reviews, open 24/7.
Based in Mokena, 5 mi away
Ranked #9 because of its Google rating and availability: 4.9★ from 440 Google reviews, open 24/7.
Based in Mokena, 6 mi away
Ranked #10 because of its Google rating and availability: 4.9★ from 428 Google reviews, open 24/7.
Based in Alsip, 6 mi away
Ranked #11 because of its Google rating and availability: 4.8★ from 600 Google reviews, open 24/7.
Based in Steger, 11 mi away
Ranked #12 because of its Google rating and availability: 4.8★ from 1,449 Google reviews, open 24/7.
Based in Mokena, 6 mi away
Ranked #13 because of its Google rating and availability: 4.9★ from 282 Google reviews, open 24/7.
Based in Frankfort, 10 mi away
Ranked #14 because of its Google rating and availability: 4.8★ from 1,060 Google reviews, open 24/7.
Based in Plainfield, 24 mi away
Ranked #15 because of its Google rating and availability: 4.9★ from 10,641 Google reviews, open 24/7.
Based in Oak Lawn, 9 mi away
Ranked #16 because of its Google rating and availability: 4.8★ from 783 Google reviews, open 24/7.
Based in Homewood, 5 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 2,200 Google reviews, listed on Google as “HVAC contractor”.
Based in Tinley Park, 4 mi away
Ranked #18 because of its Google rating and availability: 5.0★ from 92 Google reviews, open 24/7.
Based in Alsip, 5 mi away
Ranked #19 because of its Google rating and availability: 4.8★ from 269 Google reviews, open 24/7.
Based in Frankfort, 10 mi away
Ranked #20 because of its Google rating and availability: 4.9★ from 430 Google reviews, open 24/7.
Based in Mokena, 8 mi away
Ranked #21 because of its Google rating and availability: 4.8★ from 440 Google reviews, open 24/7.
Based in Countryside, 6 mi away
Ranked #22 because of its Google rating and availability: 5.0★ from 109 Google reviews, open 24/7.
Based in New Lenox, 12 mi away
Ranked #23 because of its Google rating and availability: 4.9★ from 539 Google reviews, open 24/7.
Based in Tinley Park, 4 mi away
Ranked #24 because of its Google rating and availability: 4.8★ from 201 Google reviews, open 24/7.
Based in Crown Point, 23 mi away
Ranked #25 because of its Google rating and availability: 4.9★ from 4,666 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 1,112 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.
| Business | Google rating | Distance |
|---|---|---|
| AC Plus Heating And Cooling | 5.0★ (2) | 6 mi |
| All You Need Heating, Ventilation, AC & Refrigeration Professionals | 4.9★ (53) | 6 mi |
| Appliance Repair By TMK | 3.5★ (2) | 6 mi |
| Artesian Plumbing, Heating & Cooling, Inc. | 3.0★ (2) | 6 mi |
| Calumet Heating & Cooling | 3.0★ (2) | 2 mi |
| Chicago Mechanical | In Oak Forest | |
| CMK Contractors Inc | 5.0★ (2) | In Oak Forest |
| COFFEY TEMP PRO, LLC | 5.0★ (1) | In Oak Forest |
| Coleman LLC | 5.0★ (2) | 6 mi |
| Comfort Zone Service | 5.0★ (296) | 7 mi |
| Dynamic Heating & Piping | 1.0★ (2) | 3 mi |
| Empire Electric Heating & Cooling | In Oak Forest | |
| Heat Medics Heating & Cooling, LLC | 5.0★ (131) | 9 mi |
| KC Refrigeration and HVAC | 3.0★ (2) | 4 mi |
| Posen Heating & Air Services | 5.0★ (2) | 4 mi |
| Preferred Comfort | 5.0★ (2) | 5 mi |
| Rps Heating & Air | 5.0★ (2) | 6 mi |
| SAI Mechanical | 5.0★ (2) | 7 mi |
| Smg hvac | 5.0★ (2) | 2 mi |
| Temperature Control Solutions | 5.0★ (2) | 5 mi |
National price ranges in USD, not adjusted for Oak Forest. 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 1,112 Oak Forest 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 Oak Forest 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 |