306 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Glen Carbon: Morrison Plumbing, Heating, Air, & Electrical Services, CR Score 67/100; 4.9★ from 8,631 Google reviews; open 24/7.
Best for emergencies (open 24/7): Hoffmann Brothers, posts 24/7 hours; ranked #2 of 306.
Most-reviewed: Hoffmann Brothers, 10,949 Google reviews at 4.9★, the most of 306 ranked; ranked #12.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
306 Glen Carbon HVAC contractors are ranked here by CR Score, from ten published factors. 99 are open 24/7, 192 open Saturdays and 155 open Sundays, based on posted hours. The median Google rating is 4.9★ across 306 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Morrison Plumbing, Heating, Air, & Electrical Services | 67 | 4.9★ (8,631) | Collinsville, 5 mi away | 24/7 | Overall |
| 2 | Hoffmann Brothers | 66 | 4.9★ (5,405) | Edwardsville, 3 mi away | 24/7 | Emergencies |
| 3 | Classic Aire Care | 65 | 5.0★ (1,039) | Edwardsville, 2 mi away | 24/7 | — |
| 4 | Tiger Plumbing, Heating, Air Conditioning, & Electrical Services | 65 | 4.7★ (5,072) | Collinsville, 4 mi away | 24/7 | — |
| 5 | Polar Plumbing, Heating & Air Conditioning | 64 | 5.0★ (514) | Collinsville, 4 mi away | 24/7 | — |
| 6 | Viviano Heating & Air Conditioning, Inc. | 63 | 4.9★ (890) | Collinsville, 5 mi away | 24/7 | — |
| 7 | Classic Aire Care | 63 | 5.0★ (1,160) | Fairview Heights, 10 mi away | 24/7 | — |
| 8 | Home Heating & Cooling | 62 | 5.0★ (586) | O'Fallon, 11 mi away | 24/7 | — |
| 9 | BELOMAN | 62 | 4.9★ (1,500) | Belleville, 16 mi away | 24/7 | — |
| 10 | Dole Heating & Air Conditioning | 62 | 4.9★ (1,401) | St. Louis, 15 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 Glen Carbon
Based in Collinsville, 5 mi away
Ranked #1 because of its Google rating and trade focus: 4.9★ from 8,631 Google reviews, listed on Google as “HVAC contractor”.
Based in Edwardsville, 3 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 5,405 Google reviews, listed on Google as “HVAC contractor”.
Based in Edwardsville, 2 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 1,039 Google reviews, listed on Google as “Heating contractor”.
Based in Collinsville, 4 mi away
Ranked #4 because of its Google rating and trade focus: 4.7★ from 5,072 Google reviews, listed on Google as “HVAC contractor”.
Based in Collinsville, 4 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 514 Google reviews, listed on Google as “HVAC contractor”.
Based in Collinsville, 5 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 890 Google reviews, listed on Google as “HVAC contractor”.
Based in Fairview Heights, 10 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 1,160 Google reviews, listed on Google as “HVAC contractor”.
Based in O'Fallon, 11 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 586 Google reviews, listed on Google as “HVAC contractor”.
Based in Belleville, 16 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 1,500 Google reviews, listed on Google as “Air conditioning repair service”.
Based in St. Louis, 15 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 1,401 Google reviews, listed on Google as “HVAC contractor”.
Based in St. Louis, 23 mi away
Ranked #11 because of its Google rating and trade focus: 4.9★ from 4,820 Google reviews, listed on Google as “HVAC contractor”.
Based in Brentwood, 21 mi away
Ranked #12 because of its Google rating and review volume: 4.9★ from 10,949 Google reviews, the most in Glen Carbon.
Based in St. Louis, 25 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 5,847 Google reviews, listed on Google as “HVAC contractor”.
Based in Hazelwood, 23 mi away
Ranked #14 because of its Google rating and trade focus: 4.8★ from 6,727 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Edwardsville, 2 mi away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 82 Google reviews, listed on Google as “HVAC contractor”.
Based in Florissant, 18 mi away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 1,285 Google reviews, listed on Google as “HVAC contractor”.
Based in Wood River, 10 mi away
Ranked #17 because of its Google rating and trade focus: 4.8★ from 383 Google reviews, listed on Google as “HVAC contractor”.
Based in Hazelwood, 22 mi away
Ranked #18 because of its Google rating and trade focus: 4.9★ from 2,041 Google reviews, listed on Google as “HVAC contractor”.
Based in Bethalto, 16 mi away
Ranked #19 because of its Google rating and trade focus: 4.9★ from 672 Google reviews, listed on Google as “HVAC contractor”.
Based in O'Fallon, 12 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 581 Google reviews, listed on Google as “HVAC contractor”.
Based in Collinsville, 3 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 38 Google reviews, listed on Google as “HVAC contractor”.
Based in St. Louis, 25 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 1,430 Google reviews, listed on Google as “Heating contractor”.
Based in Edwardsville, 5 mi away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 181 Google reviews, listed on Google as “HVAC contractor”.
Based in East Saint Louis, 11 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 123 Google reviews, listed on Google as “HVAC contractor”.
Based in St. Louis, 17 mi away
Ranked #25 because of its Google rating and trade focus: 4.9★ from 5,170 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 306 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 |
|---|---|---|
| ABS Heating & Cooling | 5.0★ (10) | 5 mi |
| Advanced Heating Cooling and Refrigeration | 5.0★ (2) | 11 mi |
| Affordable Comfort Hvac and Electrical | 1.0★ (1) | 11 mi |
| American Heating & Air Conditioning | 5.0★ (40) | 20 mi |
| Barrett Heating & Cooling, Inc. | 4.5★ (67) | 15 mi |
| Bechtold Residential Concepts | 5.0★ (2) | 14 mi |
| Belleville Services | 4.7★ (49) | 13 mi |
| Click Heating & Cooling | 5.0★ (28) | 19 mi |
| Climate Bullies Heating and Cooling | 4.9★ (36) | 16 mi |
| Coleman Heating and Sheet Metal | 5.0★ (2) | 25 mi |
| Dee Heating and Cooling | 5.0★ (2) | 16 mi |
| Honor Heating, Air and Plumbing Inc. | 4.9★ (40) | 14 mi |
| Hosack Plumbing, Heating & Cooling | 4.9★ (153) | 22 mi |
| Inman Heating & Cooling | 4.1★ (45) | 14 mi |
| JBR Heating and Cooling | 5.0★ (20) | 16 mi |
| MALHEREK,S HEATING & COOLING, LLC | 5.0★ (1) | 6 mi |
| Mr. Comfy | 5.0★ (4) | 6 mi |
| Nilos, LLC | 5.0★ (2) | 8 mi |
| SMART St. Louis | 5.0★ (2) | 22 mi |
| Weis Comfort Systems | 4.8★ (152) | 23 mi |
National price ranges in USD, not adjusted for Glen Carbon. 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 306 Glen Carbon 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 Glen Carbon 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 |