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Emergency HVAC Contractors in Lemay, MO (2026)

Top 50 of 420 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 Lemay: Rhymes Heating and Cooling, 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 Lemay at a glance

Top emergency HVAC contractors in Lemay at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Rhymes Heating and Cooling945.0★ (1,430)St. Louis, 3 mi away24/7
2Scott-Lee Company924.9★ (2,175)St. Louis, 7 mi away24/7
3Classic Aire Care924.9★ (4,820)St. Louis, 12 mi away24/7
4Classic Aire Care925.0★ (1,400)Arnold, 8 mi away24/7
5Dole Heating & Air Conditioning924.9★ (1,401)St. Louis, 7 mi away24/7
6Hoffmann Brothers924.9★ (5,847)St. Louis, 14 mi away24/7
7Morrison Plumbing, Heating, Air, & Electrical Services924.9★ (8,631)Collinsville, 17 mi away24/7
8Vitt Heating & Cooling914.9★ (494)St. Louis, 4 mi away24/7
9St. Louis Heating and Air Conditioning914.9★ (487)St. Louis, 5 mi away24/7
10Jerry Kelly Heating & Air Conditioning904.9★ (1,825)Ballwin, 14 mi away24/7

Call an emergency HVAC contractor in Lemay 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 Lemay, 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 420 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 Scott-Lee Company

    Based in St. Louis, 7 mi away

    92/100CR Score

    Ranked #2 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

  3. #3 Classic Aire Care

    Based in St. Louis, 12 mi away

    92/100CR 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

  6. #6 Hoffmann Brothers

    Based in St. Louis, 14 mi away

    92/100CR Score

    Ranked #6 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

  12. #12 BELOMAN

    Based in Belleville, 13 mi away

    90/100CR Score

    Ranked #12 because of its Google rating and availability: 4.9★ from 1,500 Google reviews, open 24/7.

    • 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

  14. #14 Chesterfield Service

    Based in Chesterfield, 21 mi away

    90/100CR Score

    Ranked #14 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

  18. #18 Classic Aire Care

    Based in Fairview Heights, 17 mi away

    90/100CR Score

    Ranked #18 because of its Google rating and availability: 5.0★ from 1,160 Google reviews, open 24/7.

    • 5.0★ from 1,160 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    13 Executive Dr Suite 15, Fairview Heights, IL 62208
    View profile for Classic Aire Care(618) 213-2690

  20. #20 Classic Aire Care

    Based in Ballwin, 16 mi away

    90/100CR Score

    Ranked #20 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

  23. #23 Hoffmann Brothers

    Based in Edwardsville, 25 mi away

    89/100CR Score

    Ranked #23 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

Top 50 of 420 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 Lemay, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Tiger Plumbing, Heating, Air Conditioning, & Electrical Services894.7★ (5,072)20 mi
27B & B Heating & Cooling895.0★ (1,348)21 mi
28Hosack Plumbing, Heating & Cooling894.9★ (153)7 mi
29Home Heating & Cooling885.0★ (586)18 mi
30Viviano Heating & Air Conditioning, Inc.884.9★ (890)18 mi
31Classic Aire Care885.0★ (1,039)22 mi
32Air Comfort Service Inc.885.0★ (1,159)23 mi
33Kirkwood Heating & Air Conditioning884.7★ (135)6 mi
34Central Air Heating and Cooling884.8★ (497)15 mi
35Arch Air Services884.9★ (303)15 mi
36Reinhold Heating & Cooling885.0★ (62)8 mi
37Polar Plumbing, Heating & Air Conditioning875.0★ (514)21 mi
38American Heating & Air Conditioning875.0★ (40)6 mi
39The Furnace Guys Heating & Cooling LLC875.0★ (123)13 mi
40Harster Heating & Air Conditioning874.5★ (77)3 mi
41Perfect Air874.9★ (807)22 mi
42No Problem Heating and Cooling874.8★ (1,113)23 mi
43Xcell Williams874.8★ (141)13 mi
44Integrity Aire865.0★ (288)21 mi
45Missouri Furnace & Air Conditioning864.9★ (275)19 mi
46Niksic Air Conditioning & Heating864.6★ (22)4 mi
47Premier, Inc864.9★ (422)22 mi
48Bone Heating and Cooling864.9★ (513)24 mi
49Saylors Systems Heating and AC Repair865.0★ (174)20 mi
50Hely Heating and Air Conditioning Co.864.7★ (41)9 mi

How we ranked emergency HVAC contractors in Lemay

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 Lemay: questions

Which HVAC contractors in Lemay are open 24/7?

25 on this list post 24/7 hours, including Rhymes Heating and Cooling, Scott-Lee Company, Classic Aire Care, Classic Aire Care and Dole Heating & Air Conditioning.

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

Rhymes Heating and Cooling is #1, with a CR Score of 94 out of 100 on emergency weights.

How are emergency HVAC contractors in Lemay 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 Lemay

  1. October 2026: CR Scores recalculated for 420 hvac contractors serving Lemay.
  2. October 2026: 2 duplicate listings merged.

More emergency and heating and cooling pages