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Emergency HVAC Contractors in Berkeley, MO (2026)

Top 50 of 466 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 Berkeley: 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 Berkeley at a glance

Top emergency HVAC contractors in Berkeley at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Academy Air Heating, Cooling, Plumbing and Electric944.8★ (6,727)Hazelwood, 5 mi away24/7
2Hoffmann Brothers944.9★ (5,847)St. Louis, 7 mi away24/7
3Classic Aire Care944.9★ (4,820)St. Louis, 6 mi away24/7
4Air Comfort Service, Inc.934.9★ (2,041)Hazelwood, 3 mi away24/7
5B & B Heating & Cooling934.9★ (1,285)Florissant, 2 mi away24/7
6Jerry Kelly Heating & Air Conditioning924.9★ (6,530)Saint Peters, 15 mi away24/7
7Morrison Plumbing, Heating, Air, & Electrical Services924.9★ (8,631)Collinsville, 17 mi away24/7
8Arch Air Services924.9★ (303)Berkeley24/7
9B & B Heating & Cooling915.0★ (1,348)Saint Charles, 11 mi away24/7
10Chesterfield Service914.9★ (4,286)Chesterfield, 17 mi away24/7

Call an emergency HVAC contractor in Berkeley 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 Berkeley, 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 466 is on the HVAC contractors page.

Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  2. #2 Hoffmann Brothers

    Based in St. Louis, 7 mi away

    94/100CR Score

    Ranked #2 because of its Google rating and availability: 4.9★ from 5,847 Google reviews, open 24/7.

    • 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

  3. #3 Classic Aire Care

    Based in St. Louis, 6 mi away

    94/100CR Score

    Ranked #3 because of its Google rating and availability: 4.9★ from 4,820 Google reviews, open 24/7.

    • 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

  10. #10 Chesterfield Service

    Based in Chesterfield, 17 mi away

    91/100CR Score

    Ranked #10 because of its Google rating and availability: 4.9★ from 4,286 Google reviews, open 24/7.

    • 4.9★ from 4,286 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    245 Chesterfield Industrial Blvd, Chesterfield, MO 63005
    View profile for Chesterfield Service(636) 837-1949

  11. #11 Hoffmann Brothers

    Based in Edwardsville, 19 mi away

    91/100CR Score

    Ranked #11 because of its Google rating and availability: 4.9★ from 5,405 Google reviews, open 24/7.

    • 4.9★ from 5,405 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1254 University Dr Suite 800, Edwardsville, IL 62025
    View profile for Hoffmann Brothers(618) 271-6200

  17. #17 Scott-Lee Company

    Based in St. Louis, 17 mi away

    90/100CR Score

    Ranked #17 because of its Google rating and availability: 4.9★ from 2,175 Google reviews, open 24/7.

    • 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

  18. #18 Premier, Inc

    Based in Saint Charles, 9 mi away

    90/100CR Score

    Ranked #18 because of its Google rating and availability: 4.9★ from 422 Google reviews, open 24/7.

    • 4.9★ from 422 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    179 Hughes Ln, St Charles, MO 63301
    View profile for Premier, Inc(636) 916-1122

  19. #19 Classic Aire Care

    Based in Ballwin, 16 mi away

    90/100CR Score

    Ranked #19 because of its Google rating and availability: 5.0★ from 1,014 Google reviews, open 24/7.

    • 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

  22. #22 Classic Aire Care

    Based in Edwardsville, 18 mi away

    89/100CR Score

    Ranked #22 because of its Google rating and availability: 5.0★ from 1,039 Google reviews, open 24/7.

    • 5.0★ from 1,039 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    3 Sunset Hills Executive Dr #1, Edwardsville, IL 62025
    View profile for Classic Aire Care(618) 213-2618

  23. #23 Integrity Aire

    Based in Saint Charles, 11 mi away

    89/100CR Score

    Ranked #23 because of its Google rating and availability: 5.0★ from 288 Google reviews, open 24/7.

    • 5.0★ from 288 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1382 Charlestown Industrial Dr, St Charles, MO 63303
    View profile for Integrity Aire(314) 803-3664

  24. #24 Xcell Williams

    Based in St. Louis, 3 mi away

    89/100CR Score

    Ranked #24 because of its Google rating and availability: 4.8★ from 141 Google reviews, open 24/7.

    • 4.8★ from 141 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    3901 Shirley Ave, St. Louis, MO 63121
    View profile for Xcell Williams(314) 395-9355

Top 50 of 466 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 Berkeley, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Vitt Heating & Cooling894.9★ (494)12 mi
27Classic Aire Care895.0★ (1,400)21 mi
28Stay Cool Climate Control895.0★ (1,068)20 mi
29No Problem Heating and Cooling894.8★ (1,113)16 mi
30Jersey heating and cooling llc885.0★ (163)10 mi
31Classic Aire Care885.0★ (1,160)22 mi
32Martin Jetco Heating & Air Conditioning884.9★ (1,177)20 mi
33Faszold Heating and Cooling884.9★ (873)19 mi
34Hosack Plumbing, Heating & Cooling884.9★ (153)9 mi
35Hosack Plumbing, Heating & Cooling885.0★ (696)20 mi
36Viviano Heating & Air Conditioning, Inc.884.9★ (890)19 mi
37BELOMAN884.9★ (1,500)22 mi
38Swiss, LLC884.9★ (924)20 mi
39Comfort Experts, Inc885.0★ (355)17 mi
40Ozark Mechanical885.0★ (160)13 mi
41Polar Plumbing, Heating & Air Conditioning885.0★ (514)20 mi
42Aire Serv of St. Louis874.9★ (221)14 mi
43Gene's Appliance AC & Heating874.9★ (207)13 mi
44B & W Heating & Cooling874.8★ (383)15 mi
45Pruitt Mechanical Services874.9★ (672)21 mi
46Home Heating & Cooling875.0★ (586)23 mi
47Welsch Heating & Cooling874.5★ (162)7 mi
48KirbnJays Heating & Cooling874.9★ (340)20 mi
49Raydel Heating and Cooling875.0★ (101)14 mi
50MRC Services LLC864.7★ (35)5 mi

How we ranked emergency HVAC contractors in Berkeley

Emergency lists move 10 points of the CR Score from reputation to availability: 25% and 20%. 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
Reputation25%Bayesian-adjusted Google star rating
Credentials15%Active state license 0.6, bond 0.2, workers’ comp 0.2
Review volume10%log10(reviews + 1) against the list maximum
Recency10%Share of reviews from the last 12 months
Availability20%Weekly open hours, Saturday, Sunday, 24/7 or same-day
Trade focus10%Google main category 1.0, business name 0.7, additional category 0.5
Proximity5%1.0 when based in the city, falling to 0 at the trade’s radius
Completeness5%Website, photos, description, hours, claimed profile (0.2 each)

Emergency HVAC contractors in Berkeley: questions

Which HVAC contractors in Berkeley are open 24/7?

25 on this list post 24/7 hours, including Academy Air Heating, Cooling, Plumbing and Electric, Hoffmann Brothers, Classic Aire Care, Air Comfort Service, Inc. and B & B Heating & Cooling.

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

Academy Air Heating, Cooling, Plumbing and Electric is #1, with a CR Score of 94 out of 100 on emergency weights.

How are emergency HVAC contractors in Berkeley ranked?

Emergency lists move 10 points of the CR Score from reputation to availability: 25% and 20%. 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 Berkeley

  1. October 2026: CR Scores recalculated for 466 hvac contractors serving Berkeley.
  2. October 2026: 2 duplicate listings merged.

More emergency and heating and cooling pages