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Emergency HVAC Contractors in Washington, MO (2026)

Top 50 of 130 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 Washington: Level 9 Heating Cooling Plumbing, 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 Washington at a glance

Top emergency HVAC contractors in Washington at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Level 9 Heating Cooling Plumbing664.9★ (1,254)Washington24/7
2Chesterfield Service624.9★ (4,286)Chesterfield, 22 mi away24/7
3Jerry Kelly Heating & Air Conditioning624.9★ (6,530)Saint Peters, 25 mi away24/7
4Renaud Brothers Heating & Cooling615.0★ (609)Wentzville, 16 mi away24/7
5Hoock's Heating & Cooling615.0★ (768)O'Fallon, 18 mi away24/7
6Menke Heating and Cooling615.0★ (99)Union, 6 mi away24/7
7Lakebrink Heating & Air Conditioning604.7★ (99)Union, 7 mi away24/7
8Stay Cool Climate Control605.0★ (1,068)O'Fallon, 24 mi away24/7
9Classic Aire Care605.0★ (1,014)Ballwin, 24 mi away24/7
10Elite Heating and Cooling605.0★ (476)Wentzville, 21 mi away24/7

Call an emergency HVAC contractor in Washington 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 Washington, 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 130 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 Chesterfield Service

    Based in Chesterfield, 22 mi away

    62/100CR Score

    Ranked #2 because of its Google rating and trade focus: 4.9★ from 4,286 Google reviews, listed on Google as “HVAC contractor”.

    • 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

  9. #9 Classic Aire Care

    Based in Ballwin, 24 mi away

    60/100CR Score

    Ranked #9 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

  11. #11 AAA Heating & Cooling

    Based in Wentzville, 20 mi away

    60/100CR Score

    Ranked #11 because of its Google rating and trade focus: 5.0★ from 413 Google reviews, listed on Google as “Air conditioning contractor”.

    • 5.0★ from 413 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    407 E Pearce Blvd Ste A, Wentzville, MO 63385
    View profile for AAA Heating & Cooling(636) 278-9616

  13. #13 Swiss, LLC

    Based in O'Fallon, 24 mi away

    60/100CR Score

    Ranked #13 because of its Google rating and trade focus: 4.9★ from 924 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 924 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    406 E Wabash St, O'Fallon, MO 63366
    View profile for Swiss, LLC(636) 542-8739

  18. #18 Comfort Experts, Inc

    Based in Saint Peters, 23 mi away

    59/100CR Score

    Ranked #18 because of its Google rating and trade focus: 5.0★ from 355 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 355 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    5501 St Charles St St 101, Cottleville, MO 63304
    View profile for Comfort Experts, Inc(636) 939-9220

  19. #19 Future Aire

    Based in Eureka, 21 mi away

    58/100CR Score

    Ranked #19 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

  22. #22 Air Alliance Team

    Based in Saint Peters, 24 mi away

    57/100CR Score

    Ranked #22 because of its Google rating and trade focus: 4.7★ from 253 Google reviews, listed on Google as “HVAC contractor”.

    • 4.7★ from 253 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    5233 State Rte N, Cottleville, MO 63304
    View profile for Air Alliance Team(636) 224-1880

Top 50 of 130 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 Washington, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Brandt HVAC575.0★ (7)8 mi
27Wyzer Heating and Cooling 🔥❄️👨‍🔧565.0★ (25)17 mi
28Ron's Water Heating Repair North Richland Hills564.6★ (26)17 mi
29MCF Mechanical565.0★ (22)19 mi
30Gallagher Mechanical553.9★ (33)16 mi
31Autumn Air Company554.8★ (23)21 mi
32Schraer Heating & Air Conditioning554.8★ (22)23 mi
33True Blue Home Services544.9★ (17)24 mi
34Xtreme Services & Parts (Commercial)543.8★ (10)19 mi
35Wentzville Air & Refrigeration545.0★ (15)25 mi
36Xcell Williams Heating & Cooling535.0★ (4)19 mi
37Adams Air Conditioning & Heating525.0★ (3)22 mi
38Refrigeration & Kitchen Solutions Inc523.6★ (5)23 mi
39Aire Serv of St Charles, MO524.7★ (3)25 mi
40B & S Heating & Cooling494.7★ (32)8 mi
41The Air Guys484.2★ (5)In Washington
42Complete Maintenance & Repair Service Inc.484.0★ (4)In Washington
43Tune Heating and Cooling LLC464.9★ (73)23 mi
44Crystal Heating & Cooling464.9★ (497)In Washington
45Canada HVAC LLC455.0★ (23)22 mi
46Thunderbird Heating And Air445.0★ (15)20 mi
47Superior Service445.0★ (2,219)18 mi
48J.S Heat And Air Conditioning434.4★ (13)21 mi
49J and E Heating and Cooling434.4★ (5)18 mi
50Fresh Air Heating and Cooling434.9★ (1,784)20 mi

How we ranked emergency HVAC contractors in Washington

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 Washington: questions

Which HVAC contractors in Washington are open 24/7?

25 on this list post 24/7 hours, including Level 9 Heating Cooling Plumbing, Chesterfield Service, Jerry Kelly Heating & Air Conditioning, Renaud Brothers Heating & Cooling and Hoock's Heating & Cooling.

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

Level 9 Heating Cooling Plumbing is #1, with a CR Score of 66 out of 100 on emergency weights.

How are emergency HVAC contractors in Washington 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 Washington

  1. October 2026: CR Scores recalculated for 130 hvac contractors serving Washington.

More emergency and heating and cooling pages