1,788 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Downers Grove: Leslie Heating, Cooling, Plumbing, & Electric, CR Score 64/100; 4.8★ from 3,089 Google reviews; open 24/7.
Best for emergencies (open 24/7): Precision Today Plumbing Heating Cooling Electrical, posts 24/7 hours; ranked #2 of 1,788.
Most-reviewed: Four Seasons Heating, Air Conditioning, Plumbing, & Electric, 27,709 Google reviews at 4.7★, the most of 1,788 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
1,788 Downers Grove HVAC contractors are ranked here by CR Score, from ten published factors. 772 are open 24/7, 1,392 open Saturdays and 1,126 open Sundays, based on posted hours. The median Google rating is 4.9★ across 1,788 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Leslie Heating, Cooling, Plumbing, & Electric | 64 | 4.8★ (3,089) | Lombard, 3 mi away | 24/7 | Overall |
| 2 | Precision Today Plumbing Heating Cooling Electrical | 64 | 4.8★ (7,723) | Carol Stream, 8 mi away | 24/7 | Emergencies |
| 3 | ABC Plumbing, Sewer, Heating, Cooling & Electric | 64 | 4.8★ (1,107) | Downers Grove | 24/7 | — |
| 4 | Four Seasons Heating, Air Conditioning, Plumbing, & Electric | 64 | 4.7★ (27,709) | Chicago, 13 mi away | 24/7 | Most reviews |
| 5 | TR Miller Heating, Cooling, Plumbing and Electrical | 64 | 4.9★ (10,641) | Plainfield, 14 mi away | 24/7 | — |
| 6 | Fire 'n' Ice Heating & Cooling, Inc. | 63 | 4.9★ (471) | Downers Grove | 24/7 | — |
| 7 | Borter Heating & Air Conditioning Co | 63 | 5.0★ (1,316) | Wheaton, 8 mi away | 24/7 | — |
| 8 | Energy Services Air Conditioning & Heating Co. & Electrical | 63 | 4.9★ (1,929) | Naperville, 8 mi away | 24/7 | — |
| 9 | Comfort Services Heating & Air Conditioning | 63 | 4.9★ (331) | Downers Grove | 24/7 | — |
| 10 | Glen Ellyn Heating and Cooling | 62 | 5.0★ (187) | Downers Grove | 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 Downers Grove
Based in Lombard, 3 mi away
Ranked #1 because of its Google rating and trade focus: 4.8★ from 3,089 Google reviews, listed on Google as “HVAC contractor”.
Based in Carol Stream, 8 mi away
Ranked #2 because of its Google rating and trade focus: 4.8★ from 7,723 Google reviews, listed on Google as “HVAC contractor”.
Based in Downers Grove
Ranked #3 because of its Google rating and trade focus: 4.8★ from 1,107 Google reviews, listed on Google as “HVAC contractor”.
Based in Chicago, 13 mi away
Ranked #4 because of its Google rating and review volume: 4.7★ from 27,709 Google reviews, the most in Downers Grove.
Based in Plainfield, 14 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 10,641 Google reviews, listed on Google as “HVAC contractor”.
Based in Downers Grove
Ranked #6 because of its Google rating and trade focus: 4.9★ from 471 Google reviews, listed on Google as “HVAC contractor”.
Based in Wheaton, 8 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 1,316 Google reviews, listed on Google as “HVAC contractor”.
Based in Naperville, 8 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 1,929 Google reviews, listed on Google as “HVAC contractor”.
Based in Downers Grove
Ranked #9 because of its Google rating and trade focus: 4.9★ from 331 Google reviews, listed on Google as “HVAC contractor”.
Based in Downers Grove
Ranked #10 because of its Google rating and trade focus: 5.0★ from 187 Google reviews, listed on Google as “HVAC contractor”.
Based in Villa Park, 6 mi away
Ranked #11 because of its Google rating and trade focus: 4.9★ from 897 Google reviews, listed on Google as “HVAC contractor”.
Based in Addison, 7 mi away
Ranked #12 because of its Google rating and trade focus: 4.8★ from 1,645 Google reviews, listed on Google as “HVAC contractor”.
Based in Franklin Park, 11 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 2,121 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Downers Grove
Ranked #14 because of its Google rating and trade focus: 4.9★ from 898 Google reviews, listed on Google as “HVAC contractor”.
Based in Aurora, 11 mi away
Ranked #15 because of its Google rating and trade focus: 4.7★ from 5,573 Google reviews, listed on Google as “HVAC contractor”.
Based in Villa Park, 7 mi away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 823 Google reviews, listed on Google as “HVAC contractor”.
Based in Carol Stream, 8 mi away
Ranked #17 because of its Google rating and trade focus: 4.8★ from 1,516 Google reviews, listed on Google as “HVAC contractor”.
Based in Elmhurst, 4 mi away
Ranked #18 because of its Google rating and trade focus: 4.8★ from 648 Google reviews, listed on Google as “Furnace repair service”.
Based in Lombard, 4 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 250 Google reviews, listed on Google as “HVAC contractor”.
Based in Downers Grove
Ranked #20 because of its Google rating and trade focus: 5.0★ from 129 Google reviews, listed on Google as “HVAC contractor”.
Based in Itasca, 12 mi away
Ranked #21 because of its Google rating and trade focus: 4.7★ from 4,969 Google reviews, listed on Google as “HVAC contractor”.
Based in Countryside, 7 mi away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 623 Google reviews, listed on Google as “HVAC contractor”.
Based in Downers Grove
Ranked #23 because of its Google rating and trade focus: 5.0★ from 320 Google reviews, listed on Google as “HVAC contractor”.
Based in West Chicago, 12 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 942 Google reviews, listed on Google as “HVAC contractor”.
Based in Bridgeview, 12 mi away
Ranked #25 because of its Google rating and trade focus: 4.7★ from 4,200 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 1,788 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 |
|---|---|---|
| 2 Sisters Remodeling Experts | 4.4★ (46) | In Downers Grove |
| Advantage Mechanical II Inc AMI | 5.0★ (2) | 5 mi |
| Airwise Heating and Air Conditioning | 3.0★ (2) | 4 mi |
| Andersen Plumbing, Heating and AC Repair | 4.9★ (1,637) | 18 mi |
| Arkay Mechanical Inc | 5.0★ (2) | 3 mi |
| Autumn Construction Services | 5.0★ (2) | 2 mi |
| Besco Air Inc. | 4.9★ (1,342) | 17 mi |
| Cool air systems | 5.0★ (1) | In Downers Grove |
| Dutchman Heating and Cooling Inc. | 4.7★ (458) | 7 mi |
| Goode Plumbing | 4.8★ (2,374) | 18 mi |
| Great Lakes Plumbing Heating & Fire Protection Company | 4.5★ (2) | 3 mi |
| Heating & Cooling Service | 5.0★ (2) | 6 mi |
| Intuitive Construction Services, LLC | In Downers Grove | |
| Pro Temp of Illinois | 5.0★ (2) | 6 mi |
| Right now heating and cooling | In Downers Grove | |
| ROSEGG Heating Air Conditioning | In Downers Grove | |
| Top Mark HVAC | 5.0★ (1) | In Downers Grove |
| Weaver Mechanical | 5.0★ (3) | In Downers Grove |
| Wheaton Furnace Repair | 5.0★ (2) | 6 mi |
| Your Choice Cooling & Heating | In Downers Grove |
National price ranges in USD, not adjusted for Downers Grove. 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 1,788 Downers Grove 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 Downers Grove 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 |