66/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.9★ from 807 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 807 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 503 Warne St, Festus, MO 63028
Best HVAC Contractors in Festus, MO (2026)
126 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Festus: Perfect Air, CR Score 66/100; 4.9★ from 807 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Bone Heating and Cooling, posts 24/7 hours; ranked #2 of 126.
- 6
Most-reviewed: Crystal Heating & Cooling, 2,553 Google reviews at 4.9★, the most of 126 ranked; ranked #6.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
126 Festus HVAC contractors are ranked here by CR Score, from ten published factors. 45 are open 24/7, 74 open Saturdays and 61 open Sundays, based on posted hours. The median Google rating is 4.8★ across 126 rated businesses.
Top 10 HVAC contractors in Festus at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Perfect Air | 66 | 4.9★ (807) | Festus | 24/7 | Overall |
| 2 | Bone Heating and Cooling | 66 | 4.9★ (513) | Festus | 24/7 | Emergencies |
| 3 | Classic Aire Care | 64 | 5.0★ (1,400) | Arnold, 16 mi away | 24/7 | — |
| 4 | Pioneer Mechanical, LLC. | 63 | 4.9★ (130) | Festus | 24/7 | — |
| 5 | Academy Air Heating, Cooling, Plumbing and Electric | 63 | 4.8★ (875) | Barnhart, 11 mi away | 24/7 | — |
| 6 | Crystal Heating & Cooling | 63 | 4.9★ (2,553) | Festus | — | Most reviews |
| 7 | Faith Mechanical | 63 | 5.0★ (75) | Festus | 24/7 | — |
| 8 | Scott-Lee Company | 63 | 4.9★ (2,175) | St. Louis, 20 mi away | 24/7 | — |
| 9 | Rhymes Heating and Cooling | 63 | 5.0★ (1,430) | St. Louis, 21 mi away | 24/7 | — |
| 10 | Martin Jetco Heating & Air Conditioning | 62 | 4.9★ (1,177) | Eureka, 20 mi away | 24/7 | — |
The 126 best HVAC contractors in Festus, ranked
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.
Based in Festus
66/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 513 Google reviews, listed on Google as “Heating contractor”.
- 4.9★ from 513 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2731 Lucas Ln, Festus, MO 63028
Based in Arnold, 16 mi away
64/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 1,400 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 1,400 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2104 Tenbrook Rd, Arnold, MO 63010
Based in Festus
63/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ from 130 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 130 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2 E Main St Suite 200, Festus, MO 63028
Based in Barnhart, 11 mi away
63/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.8★ from 875 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 875 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 924 Jeffco Executive Dr, Imperial, MO 63052
Based in Festus
63/100CR ScoreRanked #6 because of its Google rating and review volume: 4.9★ from 2,553 Google reviews, the most in Festus.
- 4.9★ from 2,553 Google reviews
- Hours
- Mon–Fri 8 AM–4:30 PM · Sat–Sun closed
- Address
- 3 Cave Industrial Dr, Festus, MO 63028
Based in Festus
63/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ from 75 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 75 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in St. Louis, 20 mi away
63/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.9★ from 2,175 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 2,175 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 11010 Gravois Industrial Ct, St. Louis, MO 63128
Based in St. Louis, 21 mi away
63/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 1,430 Google reviews, listed on Google as “Heating contractor”.
- 5.0★ from 1,430 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 10958 Lin Valle Dr, St. Louis, MO 63123
Based in Eureka, 20 mi away
62/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.9★ from 1,177 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 1,177 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1327 W Lark Industrial Dr, Fenton, MO 63026
Based in Eureka, 18 mi away
60/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.8★ from 497 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 497 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3032 High Ridge Blvd, High Ridge, MO 63049
Based in St. Louis, 21 mi away
60/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.9★ from 1,051 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 1,051 Google reviews
- Hours
- Mon–Sun 8 AM–5 PM
- Address
- 11134 Lindbergh Business Ct Suite D, St. Louis, MO 63123
Based in Festus
60/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.2★ from 36 Google reviews, listed on Google as “HVAC contractor”.
- 4.2★ from 36 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1213 N Truman Blvd, Crystal City, MO 63019
Based in Eureka, 22 mi away
59/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 174 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 174 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2116 Windswept Farms Dr, Eureka, MO 63025
Based in De Soto, 10 mi away
59/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.9★ from 867 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 867 Google reviews
- Hours
- Mon–Fri 8 AM–4 PM · Sat–Sun closed
- Address
- 112 W Clement St, De Soto, MO 63020
Based in Kirkwood, 24 mi away
58/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.9★ from 221 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 221 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 250 Grand Ave, Kirkwood, MO 63122
Based in Festus
58/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.8★ from 130 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 130 Google reviews
- Hours
- Mon–Fri 6 AM–6 PM · Sat–Sun closed
- Address
- 1359 McNutt St, Herculaneum, MO 63048
Based in Waterloo, 12 mi away
58/100CR ScoreRanked #18 because of its Google rating and trade focus: 5.0★ from 29 Google reviews, listed on Google as “Heating contractor”.
- 5.0★ from 29 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3180 Trout Camp Rd, Waterloo, IL 62298
Based in St. Louis, 18 mi away
58/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 151 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 151 Google reviews
- Hours
- Mon–Fri 7 AM–4:30 PM · Sat 7 AM–12 PM · Sun 7 AM–11 AM
- Address
- 3976 Royal Estates Dr, St. Louis, MO 63129
#20 Future Aire
Based in Eureka, 24 mi away
58/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.7★ from 320 Google reviews, listed on Google as “HVAC contractor”.
- 4.7★ from 320 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 690 W 4th St, Eureka, MO 63025
Based in Columbia, 19 mi away
58/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 62 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 62 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 300 E Locust St, Columbia, IL 62236
Based in St. Louis, 23 mi away
57/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.8★ from 152 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 152 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 9900 Gravois Rd Unit 2, St. Louis, MO 63123
Based in Festus
57/100CR ScoreRanked #23 because of its Google rating and trade focus: 3.5★ from 52 Google reviews, listed on Google as “HVAC contractor”.
- 3.5★ from 52 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2880 Meyer Rd, Festus, MO 63028
Based in Arnold, 13 mi away
57/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 20 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 20 Kroeck Dr, Arnold, MO 63010
Based in Festus
57/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 7 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
HVAC contractors ranked #26 to #50
#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 126 ranked HVAC contractors here; the rest are on their profiles.
Also serving Festus
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 |
|---|---|---|
| A & A Heating & Air Conditioning LLC | 4.4★ (8) | 21 mi |
| Air Quality Services Heating & Cooling | 2.1★ (8) | 21 mi |
| Aire Serv of Kirkwood | 5.0★ (1) | 24 mi |
| Christopher Comfort Systems | 5.0★ (4) | 15 mi |
| Countryside Heating & Cooling | 4.0★ (1) | 12 mi |
| Decker Heating & Cooling | 5.0★ (1) | 20 mi |
| Dobbs HVAC+ | 6 mi | |
| Ductz of the Metro East | 5.0★ (1) | 23 mi |
| Flecke Heating And Cooling | In Festus | |
| Hood Technologies Fire Safety Inc. | 3.0★ (6) | 23 mi |
| Level 9 Heating, Cooling, and Plumbing | 5.0★ (1) | 21 mi |
| LJ Heating and Cooling LLC | 5.0★ (1) | 16 mi |
| Midwest Radiant Heat Inc | 3.0★ (2) | 16 mi |
| New Systems Air Conditioning & Heating | 5.0★ (1) | 21 mi |
| Professional Abatement | 5.0★ (1) | 22 mi |
| R & C Heating & Air Conditioning | 3.5★ (4) | 10 mi |
| SERVPRO of Southern and Central Jefferson County | 5.0★ (24) | In Festus |
| Thunderbird Heating And Air | 5.0★ (15) | 24 mi |
| Total Comfort Group | 1.0★ (1) | 21 mi |
| Weir Heating & Cooling, Inc. | 5.0★ (1) | 25 mi |
How much do HVAC contractors cost in Festus?
National price ranges in USD, not adjusted for Festus. 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 |
When to hire an HVAC contractor in Missouri
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.
How we ranked Festus HVAC contractors
We scored 126 Festus 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 Festus 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 |
HVAC contractors in Festus: frequently asked questions
Who is the best HVAC contractor in Festus?
By CR Score, the highest-ranked HVAC contractor in Festus, MO is Perfect Air with a CR Score of 66/100. It has 4.9★ from 807 Google reviews. It is open 24/7. Bone Heating and Cooling (#2) and Classic Aire Care (#3) follow. We ranked 126 HVAC contractors on ten factors, last updated October 22, 2026.
How many HVAC contractors are there in Festus?
ContractorsRanked ranks 126 HVAC contractors serving Festus, MO. 10 of them are based in Festus; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.
Which HVAC contractors in Festus are open 24/7?
45 ranked HVAC contractors in Festus post 24/7 hours. The highest-ranked are Perfect Air (#1), Bone Heating and Cooling (#2) and Classic Aire Care (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which HVAC contractors in Festus work on weekends?
74 of 126 ranked HVAC contractors post Saturday hours and 61 post Sunday hours. The highest-ranked open Saturdays are Perfect Air (#1), Bone Heating and Cooling (#2) and Classic Aire Care (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does ac replacement cost in Festus?
AC replacement typically costs $3,887 to $8,073, with $5,978 typical (Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range). This is a national range, not adjusted for Festus. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Festus HVAC contractors have?
The median Google rating among 126 rated HVAC contractors in Festus is 4.8★, with a median of 26 reviews. Crystal Heating & Cooling has the most, 2,553 reviews, and ranks #6. We adjust ratings for review count, so a few five-star reviews cannot top the list.
When is the best time to hire an HVAC contractor in Festus?
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.
How does ContractorsRanked rank HVAC contractors?
Each HVAC contractor gets a 0–100 CR Score from ten published factors, led by reputation (25%), credentials (15%), review volume (10%) and trade focus (10%). A business with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Update log for Festus
- October 2026: CR Scores recalculated for 126 hvac contractors serving Festus.
More HVAC contractors and Festus pages
HVAC contractors near Festus
- HVAC contractors in Pevely, MO188 ranked
- HVAC contractors in Barnhart, MO268 ranked
- HVAC contractors in De Soto, MO63 ranked
- HVAC contractors in Arnold, MO366 ranked
- HVAC contractors in Oakville, MO394 ranked
- HVAC contractors in Murphy, MO394 ranked
- HVAC contractors in Mehlville, MO415 ranked
- HVAC contractors in Concord, MO422 ranked
- HVAC contractors in Sappington, MO427 ranked
- HVAC contractors in Sunset Hills, MO423 ranked
Other trades in Festus
- Roofers in Festus559 ranked
- Plumbers in Festus98 ranked
- Electricians in Festus91 ranked
- General contractors in Festus138 ranked
- Painters in Festus18 ranked
- Landscapers in Festus17 ranked
- Handymen in Festus15 ranked
- Kitchen remodelers in Festus81 ranked
- Bathroom remodelers in Festus83 ranked
- Flooring contractors in Festus55 ranked
- Concrete contractors in Festus94 ranked
- Fence contractors in Festus28 ranked
- Deck builders in Festus43 ranked
- Siding contractors in Festus230 ranked
- Window installers in Festus167 ranked
- Gutter installers in Festus62 ranked
- Insulation contractors in Festus9 ranked
- Solar installers in Festus50 ranked
- Garage door repair companies in Festus25 ranked
- Foundation repair companies in Festus63 ranked
- Tree services in Festus83 ranked
- Masonry contractors in Festus40 ranked
- Water damage restoration companies in Festus206 ranked
- Home builders in Festus169 ranked
- Demolition contractors in Festus15 ranked
- All contractors in Festus