Top 50 of 613 HVAC contractors, in emergency orderUpdated 0 paid placements in this rankingHow we rank
25 of the 50 HVAC contractors on this list post 24/7 hours. 24/7 businesses come first, then same-day, each ranked by CR Score with availability weighted higher.
#1 for emergency heating and cooling in Waukegan: ABC Plumbing, Sewer, Heating, Cooling & Electric, open 24/7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
| Rank | Business | CR Score | Google rating | Based in | Hours |
|---|---|---|---|---|---|
| 1 | ABC Plumbing, Sewer, Heating, Cooling & Electric | 63 | 4.7★ (22,524) | Arlington Heights, 17 mi away | 24/7 |
| 2 | Cahill Heating, Cooling, Electric, Plumbing & Sewer | 63 | 5.0★ (1,064) | Lake Bluff, 6 mi away | 24/7 |
| 3 | Herchenbach Mechanical Inc. | 63 | 4.9★ (576) | Gurnee, 3 mi away | 24/7 |
| 4 | TopTec Heating, Cooling, Plumbing & Electrical | 63 | 4.8★ (2,018) | Libertyville, 7 mi away | 24/7 |
| 5 | Kern Heating & Cooling Co. | 63 | 4.7★ (1,162) | Beach Park, 4 mi away | 24/7 |
| 6 | AA Service Co. | 62 | 4.9★ (3,150) | Northbrook, 15 mi away | 24/7 |
| 7 | Allied Air Conditioning & Heating Corp. | 62 | 5.0★ (428) | Libertyville, 7 mi away | 24/7 |
| 8 | Duane Blanton Plumbing, Sewer, Heating & Cooling | 62 | 4.7★ (2,290) | Round Lake, 13 mi away | 24/7 |
| 9 | Ireland Heating & Air Conditioning Co. | 62 | 4.9★ (397) | Lake Forest, 7 mi away | 24/7 |
| 10 | Precision Today Plumbing Heating Cooling Electrical (Miller's Area Heating) | 62 | 4.8★ (986) | Grayslake, 10 mi away | 24/7 |
24/7 hours mean the business says its phone is answered around the clock. Arrival time depends on where the crew is. Ask for an arrival window when you call.
#1ABC Plumbing, Sewer, Heating, Cooling & Electric
Open 24/7 · 4.7 from 22,524 Google reviews
#2Cahill Heating, Cooling, Electric, Plumbing & Sewer
Open 24/7 · 5.0 from 1,064 Google reviews
Open 24/7 · 4.9 from 576 Google reviews
#4TopTec Heating, Cooling, Plumbing & Electrical
Open 24/7 · 4.8 from 2,018 Google reviews
Open 24/7 · 4.7 from 1,162 Google reviews
Open 24/7 · 4.9 from 3,150 Google reviews
#7Allied Air Conditioning & Heating Corp.
Open 24/7 · 5.0 from 428 Google reviews
#8Duane Blanton Plumbing, Sewer, Heating & Cooling
Open 24/7 · 4.7 from 2,290 Google reviews
24/7 first, then same-day service, then the rest. Each group is in CR Score order on emergency weights. The full ranking of all 613 is on the HVAC contractors page.
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 Waukegan
Based in Arlington Heights, 17 mi away
Ranked #1 because of its Google rating and review volume: 4.7★ from 22,524 Google reviews.
Based in Lake Bluff, 6 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 Gurnee, 3 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 576 Google reviews, listed on Google as “HVAC contractor”.
Based in Libertyville, 7 mi away
Ranked #4 because of its Google rating and trade focus: 4.8★ from 2,018 Google reviews, listed on Google as “HVAC contractor”.
Based in Beach Park, 4 mi away
Ranked #5 because of its Google rating and trade focus: 4.7★ from 1,162 Google reviews, listed on Google as “HVAC contractor”.
Based in Northbrook, 15 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 3,150 Google reviews, listed on Google as “HVAC contractor”.
Based in Libertyville, 7 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 428 Google reviews, listed on Google as “HVAC contractor”.
Based in Round Lake, 13 mi away
Ranked #8 because of its Google rating and trade focus: 4.7★ from 2,290 Google reviews, listed on Google as “HVAC contractor”.
Based in Lake Forest, 7 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 397 Google reviews, listed on Google as “HVAC contractor”.
Based in Grayslake, 10 mi away
Ranked #10 because of its Google rating and trade focus: 4.8★ from 986 Google reviews, listed on Google as “HVAC contractor”.
Based in Gurnee, 3 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 103 Google reviews, listed on Google as “HVAC contractor”.
Based in McHenry, 23 mi away
Ranked #12 because of its Google rating and trade focus: 4.9★ from 6,580 Google reviews, listed on Google as “HVAC contractor”.
Based in Buffalo Grove, 16 mi away
Ranked #13 because of its Google rating and trade focus: 4.7★ from 2,787 Google reviews, listed on Google as “HVAC contractor”.
Based in Gurnee, 5 mi away
Ranked #14 because of its Google rating and trade focus: 4.8★ from 232 Google reviews, listed on Google as “HVAC contractor”.
Based in Antioch, 16 mi away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 1,086 Google reviews, listed on Google as “HVAC contractor”.
Based in Antioch, 15 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 745 Google reviews, listed on Google as “HVAC contractor”.
Based in Waukegan
Ranked #17 because of its Google rating and trade focus: 5.0★ from 40 Google reviews, listed on Google as “HVAC contractor”.
Based in Buffalo Grove, 14 mi away
Ranked #18 because of its Google rating and trade focus: 4.6★ from 1,545 Google reviews, listed on Google as “HVAC contractor”.
Based in Highwood, 11 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 274 Google reviews, listed on Google as “HVAC contractor”.
Based in Mundelein, 10 mi away
Ranked #20 because of its Google rating and trade focus: 4.6★ from 697 Google reviews, listed on Google as “HVAC contractor”.
Based in Northbrook, 15 mi away
Ranked #21 because of its Google rating and trade focus: 4.9★ from 861 Google reviews, listed on Google as “HVAC contractor”.
Based in Northbrook, 16 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 697 Google reviews, listed on Google as “HVAC contractor”.
Based in Northbrook, 15 mi away
Ranked #23 because of its Google rating and trade focus: 4.8★ from 872 Google reviews, listed on Google as “HVAC contractor”.
Based in Prospect Heights, 18 mi away
Ranked #24 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 Libertyville, 9 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 165 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.
Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 HVAC contractors are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.
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 |
|---|---|---|
| Reputation | 15% | Google star rating, adjusted for how many reviews back it |
| Credentials | 15% | Active state license, bond and workers’ comp on file |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list |
| Recency | 5% | Share of reviews from the last 12 months |
| Availability | 15% | Weekly open hours, Saturday, Sunday, 24/7 or same-day |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) |
| Proximity | 5% | Based in the city scores highest, less the farther away it is |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are |