984 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Lake Forest: ABC Plumbing, Sewer, Heating, Cooling & Electric, CR Score 64/100; 4.7★ from 22,524 Google reviews; open 24/7.
Best for emergencies (open 24/7): Cahill Heating, Cooling, Electric, Plumbing & Sewer, posts 24/7 hours; ranked #2 of 984.
Most-reviewed: Black Diamond Plumbing & Mechanical Inc., 6,580 Google reviews at 4.9★, the most of 984 ranked after ABC Plumbing, Sewer, Heating, Cooling & Electric; ranked #24.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
984 Lake Forest HVAC contractors are ranked here by CR Score, from ten published factors. 424 are open 24/7, 751 open Saturdays and 619 open Sundays, based on posted hours. The median Google rating is 4.9★ across 984 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | ABC Plumbing, Sewer, Heating, Cooling & Electric | 64 | 4.7★ (22,524) | Arlington Heights, 11 mi away | 24/7 | Overall |
| 2 | Cahill Heating, Cooling, Electric, Plumbing & Sewer | 64 | 5.0★ (1,064) | Lake Bluff, 4 mi away | 24/7 | Emergencies |
| 3 | AA Service Co. | 64 | 4.9★ (3,150) | Northbrook, 8 mi away | 24/7 | — |
| 4 | Ireland Heating & Air Conditioning Co. | 63 | 4.9★ (397) | Lake Forest | 24/7 | — |
| 5 | TopTec Heating, Cooling, Plumbing & Electrical | 63 | 4.8★ (2,018) | Libertyville, 6 mi away | 24/7 | — |
| 6 | Azrikam The Price Is Right Heating & Air Conditioning HVAC | 62 | 5.0★ (697) | Northbrook, 9 mi away | 24/7 | — |
| 7 | Beck’s Heating and Air Conditioning | 62 | 5.0★ (274) | Highwood, 4 mi away | 24/7 | — |
| 8 | SPG Plumbing Northbrook | 62 | 4.9★ (861) | Northbrook, 8 mi away | 24/7 | — |
| 9 | Allied Air Conditioning & Heating Corp. | 62 | 5.0★ (428) | Libertyville, 7 mi away | 24/7 | — |
| 10 | Carefree Comfort, Inc. | 62 | 5.0★ (288) | Highland Park, 6 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 in Lake Forest
Based in Arlington Heights, 11 mi away
Ranked #1 because of its Google rating and review volume: 4.7★ from 22,524 Google reviews, the most in Lake Forest.
Based in Lake Bluff, 4 mi away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 1,064 Google reviews, listed on Google as “HVAC contractor”.
Based in Northbrook, 8 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 3,150 Google reviews, listed on Google as “HVAC contractor”.
Based in Lake Forest
Ranked #4 because of its Google rating and trade focus: 4.9★ from 397 Google reviews, listed on Google as “HVAC contractor”.
Based in Libertyville, 6 mi away
Ranked #5 because of its Google rating and trade focus: 4.8★ from 2,018 Google reviews, listed on Google as “HVAC contractor”.
Based in Northbrook, 9 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 697 Google reviews, listed on Google as “HVAC contractor”.
Based in Highwood, 4 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 274 Google reviews, listed on Google as “HVAC contractor”.
Based in Northbrook, 8 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 861 Google reviews, listed on Google as “HVAC contractor”.
Based in Libertyville, 7 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 428 Google reviews, listed on Google as “HVAC contractor”.
Based in Highland Park, 6 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 288 Google reviews, listed on Google as “HVAC contractor”.
Based in Buffalo Grove, 10 mi away
Ranked #11 because of its Google rating and trade focus: 4.7★ from 2,787 Google reviews, listed on Google as “HVAC contractor”.
Based in Prospect Heights, 11 mi away
Ranked #12 because of its Google rating and trade focus: 4.9★ from 1,120 Google reviews, listed on Google as “Air conditioning repair service”.
Based in Northbrook, 8 mi away
Ranked #13 because of its Google rating and trade focus: 4.8★ from 872 Google reviews, listed on Google as “HVAC contractor”.
Based in Fox Lake, 8 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 340 Google reviews, listed on Google as “HVAC contractor”.
Based in Gurnee, 8 mi away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 576 Google reviews, listed on Google as “HVAC contractor”.
Based in Buffalo Grove, 8 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 285 Google reviews, listed on Google as “HVAC contractor”.
Based in Skokie, 17 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 2,707 Google reviews, listed on Google as “HVAC contractor”.
Based in Rolling Meadows, 15 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 1,104 Google reviews, listed on Google as “HVAC contractor”.
Based in Buffalo Grove, 7 mi away
Ranked #19 because of its Google rating and trade focus: 4.6★ from 1,545 Google reviews, listed on Google as “HVAC contractor”.
Based in Wheeling, 9 mi away
Ranked #20 because of its Google rating and trade focus: 4.8★ from 684 Google reviews, listed on Google as “HVAC contractor”.
Based in Northbrook, 8 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 278 Google reviews, listed on Google as “HVAC contractor”.
Based in Northbrook, 9 mi away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 387 Google reviews, listed on Google as “HVAC contractor”.
Based in Evanston, 16 mi away
Ranked #23 because of its Google rating and trade focus: 4.8★ from 2,300 Google reviews, listed on Google as “HVAC contractor”.
Based in McHenry, 24 mi away
Ranked #24 because of its Google rating and trade focus: 4.9★ from 6,580 Google reviews, listed on Google as “HVAC contractor”.
Based in Mundelein, 9 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 234 Google reviews, listed on Google as “HVAC contractor”.
#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 984 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 |
|---|---|---|
| American Pride Heating & Cooling Inc. | 1.5★ (2) | 16 mi |
| ARS / Rescue Rooter | 4.7★ (4,969) | 22 mi |
| Capitol Energy | 5.0★ (2) | 12 mi |
| Furnace & Heating (NEAR ME) | 5.0★ (2) | 7 mi |
| GO GREEN Heating & Cooling | 5.0★ (2) | 6 mi |
| Goode Plumbing | 4.8★ (2,374) | 21 mi |
| HeatForce Furnace Repair HVAC | 5.0★ (2) | 10 mi |
| Indoor Weather | 5.0★ (2) | 7 mi |
| Lucke Plumbing and Heating | 3.0★ (2) | 16 mi |
| OVERALL HVAC LLC. | 3.0★ (2) | 11 mi |
| Ray's Heating & Cooling | 3.0★ (2) | 6 mi |
| Sebastian’s Heating and Cooling | 5.0★ (2) | 13 mi |
| Tedora Heating & Cooling Repairs | 4.5★ (2) | 13 mi |
| Tem Control HVAC | 5.0★ (2) | 9 mi |
| Thermal Mechanical Inc. | 3.0★ (2) | 9 mi |
| THERMATRONIC INC. | 5.0★ (2) | 11 mi |
| TM HVAC contractor | 5.0★ (2) | 14 mi |
| United Air Control Corp | 3.0★ (2) | 8 mi |
| Vita HVAC Services | 5.0★ (2) | 17 mi |
| Weatherwise Heating & Air Conditioning | 5.0★ (2) | 11 mi |
National price ranges in USD, not adjusted for Lake 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 984 Lake Forest 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 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 Lake Forest data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |