303 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Pacific: Chesterfield Service, CR Score 63/100; 4.9★ from 4,286 Google reviews; open 24/7.
Best for emergencies (open 24/7): Jerry Kelly Heating & Air Conditioning, posts 24/7 hours; ranked #2 of 303.
Most-reviewed: Hoffmann Brothers, 10,949 Google reviews at 4.9★, the most of 303 ranked; ranked #15.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
303 Pacific HVAC contractors are ranked here by CR Score, from ten published factors. 98 are open 24/7, 184 open Saturdays and 154 open Sundays, based on posted hours. The median Google rating is 4.9★ across 303 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Chesterfield Service | 63 | 4.9★ (4,286) | Chesterfield, 14 mi away | 24/7 | Overall |
| 2 | Jerry Kelly Heating & Air Conditioning | 63 | 4.9★ (6,530) | Saint Peters, 19 mi away | 24/7 | Emergencies |
| 3 | Classic Aire Care | 62 | 5.0★ (1,014) | Ballwin, 13 mi away | 24/7 | — |
| 4 | Jerry Kelly Heating & Air Conditioning | 62 | 4.9★ (1,825) | Ballwin, 14 mi away | 24/7 | — |
| 5 | Martin Jetco Heating & Air Conditioning | 62 | 4.9★ (1,177) | Eureka, 13 mi away | 24/7 | — |
| 6 | Hoffmann Brothers | 62 | 4.9★ (5,847) | St. Louis, 22 mi away | 24/7 | — |
| 7 | Saylors Systems Heating and AC Repair | 62 | 5.0★ (174) | Eureka, 6 mi away | 24/7 | — |
| 8 | Scott-Lee Company | 62 | 4.9★ (2,175) | St. Louis, 18 mi away | 24/7 | — |
| 9 | Level 9 Heating Cooling Plumbing | 61 | 4.9★ (1,254) | Washington, 16 mi away | 24/7 | — |
| 10 | Classic Aire Care | 61 | 4.9★ (4,820) | St. Louis, 23 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 because of its Google rating and trade focus: 4.9★ from 4,286 Google reviews, listed on Google as “HVAC contractor”.
Based in Saint Peters, 19 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 6,530 Google reviews, listed on Google as “HVAC contractor”.
Based in Ballwin, 13 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 1,014 Google reviews, listed on Google as “Heating contractor”.
Based in Ballwin, 14 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 1,825 Google reviews, listed on Google as “Furnace repair service”.
Based in Eureka, 13 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 1,177 Google reviews, listed on Google as “HVAC contractor”.
Based in St. Louis, 22 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 5,847 Google reviews, listed on Google as “HVAC contractor”.
Based in Eureka, 6 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 174 Google reviews, listed on Google as “HVAC contractor”.
Based in St. Louis, 18 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 2,175 Google reviews, listed on Google as “HVAC contractor”.
Based in Washington, 16 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 1,254 Google reviews, listed on Google as “HVAC contractor”.
Based in St. Louis, 23 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 4,820 Google reviews, listed on Google as “HVAC contractor”.
Based in Arnold, 20 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 1,400 Google reviews, listed on Google as “HVAC contractor”.
Based in Eureka, 6 mi away
Ranked #12 because of its Google rating and trade focus: 4.7★ from 320 Google reviews, listed on Google as “HVAC contractor”.
Based in Chesterfield, 14 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 1,784 Google reviews, listed on Google as “HVAC contractor”.
Based in Eureka, 11 mi away
Ranked #14 because of its Google rating and trade focus: 4.8★ from 497 Google reviews, listed on Google as “HVAC contractor”.
Based in Brentwood, 24 mi away
Ranked #15 because of its Google rating and review volume: 4.9★ from 10,949 Google reviews, the most in Pacific.
Based in Saint Peters, 21 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 1,159 Google reviews, listed on Google as “HVAC contractor”.
Based in Chesterfield, 14 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 1,766 Google reviews, listed on Google as “HVAC contractor”.
Based in St. Louis, 22 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 1,430 Google reviews, listed on Google as “Heating contractor”.
Based in Saint Charles, 22 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 1,348 Google reviews, listed on Google as “HVAC contractor”.
Based in Wentzville, 19 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 609 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Eureka, 5 mi away
Ranked #21 because of its Google rating and trade focus: 4.8★ from 104 Google reviews, listed on Google as “HVAC contractor”.
Based in O'Fallon, 23 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 1,068 Google reviews, listed on Google as “HVAC contractor”.
Based in Dardenne Prairie, 20 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 2,219 Google reviews, listed on Google as “HVAC contractor”.
Based in Saint Peters, 19 mi away
Ranked #24 because of its Google rating and trade focus: 4.8★ from 1,113 Google reviews, listed on Google as “HVAC contractor”.
Based in O'Fallon, 23 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 696 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 303 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 |
|---|---|---|
| Brentwood Heating, Cooling & Duct Cleaning | 5.0★ (2) | 15 mi |
| C & S Heating and Cooling | 4.5★ (2) | 24 mi |
| Decker Heating & Cooling | 5.0★ (1) | 11 mi |
| Expectancy Air Heating & Air Conditioning | 5.0★ (35) | 18 mi |
| Faith Mechanical | 5.0★ (75) | 22 mi |
| Hazelwoods Heating and Air Conditioning | 5.0★ (2) | 22 mi |
| Hosack Plumbing, Heating & Cooling | 4.9★ (153) | 23 mi |
| J&J Home Heating and Cooling | 5.0★ (2) | 24 mi |
| Jaxon Heating & Cooling | 5.0★ (2) | 20 mi |
| Midwest Radiant Heat Inc | 3.0★ (2) | 16 mi |
| Nation-Wide Refrigeration Inc | 5.0★ (2) | 23 mi |
| Optimal Heating and Cooling | 5.0★ (2) | 22 mi |
| Reliable Heating & Cooling Inc. | 4.8★ (112) | 22 mi |
| Saint Peters Heating & Air Conditioning | 5.0★ (2) | 23 mi |
| Sears Heating and Air Conditioning | 2.0★ (2) | 22 mi |
| SMART St. Louis | 5.0★ (2) | 24 mi |
| Stellar Heating and Air Conditioning | 5.0★ (2) | 25 mi |
| Weir Heating & Cooling, Inc. | 5.0★ (1) | 12 mi |
| Weis Comfort Systems | 4.8★ (152) | 23 mi |
| Wyzer Heating and Cooling 🔥❄️👨🔧 | 5.0★ (25) | 16 mi |
National price ranges in USD, not adjusted for Pacific. 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 |
HVAC demand peaks in summer for cooling and in winter for heating. Spring and fall are the easiest times to book maintenance or a replacement.
We scored 303 Pacific 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 Pacific 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 |