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Emergency HVAC Contractors in Barnhart, MO (2026)

Top 50 of 268 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.

If you smell gas, leave the building now and call your gas utility or 911 from outside.

The short answer

  1. 1

    #1 for emergency heating and cooling in Barnhart: Academy Air Heating, Cooling, Plumbing and Electric, open 24/7.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

Top emergency HVAC contractors in Barnhart at a glance

Top emergency HVAC contractors in Barnhart at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Academy Air Heating, Cooling, Plumbing and Electric654.8★ (875)Barnhart24/7
2Classic Aire Care645.0★ (1,400)Arnold, 7 mi away24/7
3Scott-Lee Company634.9★ (2,175)St. Louis, 12 mi away24/7
4Perfect Air634.9★ (807)Festus, 8 mi away24/7
5Rhymes Heating and Cooling635.0★ (1,430)St. Louis, 13 mi away24/7
6Martin Jetco Heating & Air Conditioning624.9★ (1,177)Eureka, 12 mi away24/7
7Bone Heating and Cooling624.9★ (513)Festus, 9 mi away24/7
8Classic Aire Care614.9★ (4,820)St. Louis, 23 mi away24/7
9Hoffmann Brothers614.9★ (5,847)St. Louis, 25 mi away24/7
10Jerry Kelly Heating & Air Conditioning614.9★ (1,825)Ballwin, 19 mi away24/7

Call an emergency HVAC contractor in Barnhart now

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.

The 50 emergency HVAC contractors in Barnhart, ranked

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 268 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.

  2. #2 Classic Aire Care

    Based in Arnold, 7 mi away

    64/100CR Score

    Ranked #2 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
    View profile for Classic Aire Care(636) 220-5859

  3. #3 Scott-Lee Company

    Based in St. Louis, 12 mi away

    63/100CR Score

    Ranked #3 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
    View profile for Scott-Lee Company(314) 828-8505

  4. #4 Perfect Air

    Based in Festus, 8 mi away

    63/100CR Score

    Ranked #4 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
    View profile for Perfect Air(636) 937-2578

  8. #8 Classic Aire Care

    Based in St. Louis, 23 mi away

    61/100CR Score

    Ranked #8 because of its Google rating and trade focus: 4.9★ from 4,820 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 4,820 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1276 N Warson Rd, St. Louis, MO 63132
    View profile for Classic Aire Care(314) 988-2501

  9. #9 Hoffmann Brothers

    Based in St. Louis, 25 mi away

    61/100CR Score

    Ranked #9 because of its Google rating and trade focus: 4.9★ from 5,847 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 5,847 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2043 Woodland Pkwy #100, St. Louis, MO 63146
    View profile for Hoffmann Brothers(314) 880-7437

  13. #13 Classic Aire Care

    Based in Ballwin, 20 mi away

    61/100CR Score

    Ranked #13 because of its Google rating and trade focus: 5.0★ from 1,014 Google reviews, listed on Google as “Heating contractor”.

    • 5.0★ from 1,014 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    930 Kehrs Mill Rd suite 325-9, Ballwin, MO 63011
    View profile for Classic Aire Care(636) 200-8250

  16. #16 BELOMAN

    Based in Belleville, 23 mi away

    60/100CR Score

    Ranked #16 because of its Google rating and trade focus: 4.9★ from 1,500 Google reviews, listed on Google as “Air conditioning repair service”.

    • 4.9★ from 1,500 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    5909 Cool Sports Rd, Belleville, IL 62223
    View profile for BELOMAN(618) 235-6626

  22. #22 Future Aire

    Based in Eureka, 17 mi away

    59/100CR Score

    Ranked #22 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
    View profile for Future Aire(636) 938-5290

  23. #23 Weis Comfort Systems

    Based in St. Louis, 15 mi away

    59/100CR Score

    Ranked #23 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
    View profile for Weis Comfort Systems(636) 223-4697

Top 50 of 268 HVAC contractors by emergency score

#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile.

HVAC contractors in Barnhart, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Reinhold Heating & Cooling585.0★ (62)13 mi
27Jersey heating and cooling llc585.0★ (163)19 mi
28Kirkwood Heating & Air Conditioning584.7★ (135)15 mi
29Lunk's Heating & Cooling585.0★ (29)9 mi
30DC Heating & Cooling585.0★ (29)10 mi
31Hosack Plumbing, Heating & Cooling584.9★ (153)19 mi
32Advanced HVAC Solutions585.0★ (27)10 mi
33Air Pro Heating & Cooling585.0★ (5)2 mi
34Parkway heating & air584.2★ (36)8 mi
35Hely Heating and Air Conditioning Co.584.7★ (41)12 mi
36Controlled Heating & Air Conditioning, Inc.584.6★ (19)8 mi
37Eureka Heating and Cooling574.8★ (104)18 mi
38Glosemeyer Mechanical574.2★ (42)9 mi
39Rathgeber Heating Co575.0★ (18)10 mi
40Harster Heating & Air Conditioning574.5★ (77)15 mi
41McQuerry's 24 Hour Heating & Air Conditioning574.9★ (35)16 mi
42Integrated Facility Services, Inc.564.4★ (43)15 mi
43Quality Air564.4★ (17)12 mi
44MC Mechanical Services565.0★ (4)7 mi
45American Heating & Air Conditioning565.0★ (40)19 mi
46Air-Tec Systems564.7★ (15)14 mi
47Inman Heating & Cooling564.1★ (14)13 mi
48BestChoice Hvac and Plumbing563.5★ (52)12 mi
49Sammys Heating & Air Conditioning564.6★ (18)16 mi
50Welsch Heating & Cooling554.5★ (162)25 mi

How we ranked emergency HVAC contractors in Barnhart

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.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed from
Reputation15%Google star rating, adjusted for how many reviews back it
Credentials15%Active state license, bond and workers’ comp on file
Review volume10%Number of Google reviews, compared with the most-reviewed business on the list
Recency5%Share of reviews from the last 12 months
Availability15%Weekly open hours, Saturday, Sunday, 24/7 or same-day
Trade focus10%How clearly the business does this trade (its Google category and name)
Proximity5%Based in the city scores highest, less the farther away it is
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodically
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there are

Emergency HVAC contractors in Barnhart: questions

Which HVAC contractors in Barnhart are open 24/7?

25 on this list post 24/7 hours, including Academy Air Heating, Cooling, Plumbing and Electric, Classic Aire Care, Scott-Lee Company, Perfect Air and Rhymes Heating and Cooling.

Who is ranked #1 for emergency heating and cooling in Barnhart, MO?

Academy Air Heating, Cooling, Plumbing and Electric is #1, with a CR Score of 65 out of 100 on emergency weights.

How are emergency HVAC contractors in Barnhart ranked?

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.

What should I do before the HVAC contractor arrives?

If you smell gas, leave the building now and call your gas utility or 911 from outside.

How many emergency HVAC contractors here list a phone number?

25 of the 25 businesses ranked in full list a phone number. Tap Call to dial it.

Update log for Barnhart

  1. October 2026: CR Scores recalculated for 268 hvac contractors serving Barnhart.

More emergency and heating and cooling pages