Skip to content
ContractorsRanked

Best HVAC Contractors in Saint Ann, MO (2026)

460 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Saint Ann: Hoffmann Brothers, CR Score 95/100; 4.9★ from 5,847 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Classic Aire Care, posts 24/7 hours; ranked #2 of 460.

  3. 10

    Most-reviewed: Hoffmann Brothers, 10,949 Google reviews at 4.9★, the most of 460 ranked; ranked #10.

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

460 Saint Ann HVAC contractors are ranked here by CR Score, from 8 published factors. 157 are open 24/7, 299 open Saturdays and 250 open Sundays, based on posted hours. The median Google rating is 4.9★ across 460 rated businesses.

Top 10 HVAC contractors in Saint Ann at a glance

Top 10 HVAC contractors in Saint Ann at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Hoffmann Brothers954.9★ (5,847)St. Louis, 3 mi away24/7Overall
2Classic Aire Care944.9★ (4,820)St. Louis, 3 mi away24/7Emergencies
3Academy Air Heating, Cooling, Plumbing and Electric944.8★ (6,727)Hazelwood, 4 mi away24/7—
4Air Comfort Service, Inc.934.9★ (2,041)Hazelwood, 3 mi away24/7—
5Jerry Kelly Heating & Air Conditioning924.9★ (6,530)Saint Peters, 13 mi away24/7—
6B & B Heating & Cooling925.0★ (1,348)Saint Charles, 9 mi away24/7—
7B & B Heating & Cooling924.9★ (1,285)Florissant, 5 mi away24/7—
8Chesterfield Service914.9★ (4,286)Chesterfield, 14 mi away24/7—
9Air Comfort Service Inc.915.0★ (1,159)Saint Peters, 11 mi away24/7—
10Hoffmann Brothers914.9★ (10,949)Brentwood, 8 mi awaySat · Sun · EveningsMost reviews

The 460 best HVAC contractors in Saint Ann, ranked

Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.

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

  1. Ranked #1 in Saint Ann

    #1 Hoffmann Brothers

    Based in St. Louis, 3 mi away

    95/100CR Score

    Ranked #1 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

  2. #2 Classic Aire Care

    Based in St. Louis, 3 mi away

    94/100CR Score

    Ranked #2 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 Hoffmann Brothers

    Based in Brentwood, 8 mi away

    91/100CR Score

    Ranked #10 because of its Google rating and review volume: 4.9★ from 10,949 Google reviews, the most Google reviews on this list (10,949).

    • 4.9★ from 10,949 Google reviews
    Hours
    Mon–Sun 6 AM–9 PM
    Address
    1025 Hanley Industrial Ct, Brentwood, MO 63144
    View profile for Hoffmann Brothers(314) 347-1403

  15. #15 Classic Aire Care

    Based in Ballwin, 13 mi away

    90/100CR Score

    Ranked #15 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

  18. #18 Scott-Lee Company

    Based in St. Louis, 15 mi away

    90/100CR Score

    Ranked #18 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

  20. #20 Integrity Aire

    Based in Saint Charles, 8 mi away

    90/100CR Score

    Ranked #20 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

  22. #22 Premier, Inc

    Based in Saint Charles, 8 mi away

    90/100CR Score

    Ranked #22 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

  23. #23 Hoffmann Brothers

    Based in Edwardsville, 22 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

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 460 ranked HVAC contractors here; the rest are on their profiles.

HVAC contractors in Saint Ann, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Stay Cool Climate Control895.0★ (1,068)18 mi
27No Problem Heating and Cooling894.8★ (1,113)13 mi
28Vitt Heating & Cooling894.9★ (494)12 mi
29Jersey heating and cooling llc895.0★ (163)9 mi
30Martin Jetco Heating & Air Conditioning894.9★ (1,177)17 mi
31Hosack Plumbing, Heating & Cooling895.0★ (696)18 mi
32Xcell Williams894.8★ (141)3 mi
33Classic Aire Care885.0★ (1,039)21 mi
34Faszold Heating and Cooling884.9★ (873)17 mi
35Comfort Experts, Inc885.0★ (355)15 mi
36Hosack Plumbing, Heating & Cooling884.9★ (153)8 mi
37Swiss, LLC884.9★ (924)18 mi
38Ozark Mechanical885.0★ (160)11 mi
39Aire Serv of St. Louis884.9★ (221)11 mi
40Classic Aire Care885.0★ (1,160)24 mi
41All American Appliance Service,LLC.884.7★ (2,264)5 mi
42Tiger Plumbing, Heating, Air Conditioning, & Electrical Services874.7★ (5,072)23 mi
43Design Aire Heating & Cooling - St. Louis875.0★ (926)11 mi
44BELOMAN874.9★ (1,500)23 mi
45Raydel Heating and Cooling875.0★ (101)11 mi
46Viviano Heating & Air Conditioning, Inc.874.9★ (890)22 mi
47KirbnJays Heating & Cooling874.9★ (340)17 mi
48Polar Plumbing, Heating & Air Conditioning875.0★ (514)23 mi
49Superior Service874.9★ (1,766)14 mi
50Renaud Brothers Heating & Cooling875.0★ (609)24 mi

Also serving Saint Ann

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.

Unranked HVAC contractors serving Saint Ann
BusinessGoogle ratingDistance
American Heating & Air Conditioning5.0★ (40)9 mi
Bechtold Residential Concepts5.0★ (2)18 mi
Brentwood Heating, Cooling & Duct Cleaning5.0★ (2)12 mi
Coleman Heating and Sheet Metal5.0★ (2)5 mi
Dee Heating and Cooling5.0★ (2)9 mi
Elite Heating & Cooling1.0★ (2)8 mi
Elm Heating & Air Conditioning5.0★ (2)16 mi
Hazelwoods Heating and Air Conditioning5.0★ (2)17 mi
MRC Services LLC4.7★ (35)4 mi
Nation-Wide Refrigeration Inc5.0★ (2)8 mi
Optimal Heating and Cooling5.0★ (2)8 mi
Saint Peters Heating & Air Conditioning5.0★ (2)13 mi
Sears Heating and Air Conditioning2.0★ (2)4 mi
SMART St. Louis5.0★ (2)3 mi
Stellar Heating and Air Conditioning5.0★ (2)7 mi
TC Heating and Cooling5.0★ (2)14 mi
Triple L3.5★ (2)9 mi
Weis Comfort Systems4.8★ (152)13 mi
Welsch Heating & Cooling4.5★ (162)3 mi
WSM Inc. S.I.5.0★ (2)16 mi

How much do HVAC contractors cost in Saint Ann?

National price ranges in USD, not adjusted for Saint Ann. Each row names its basis and the month we checked it.

How much do HVAC contractors cost in Saint Ann?
JobLowTypicalHighBasisChecked
AC replacement$3,887$5,978$8,073Per system, installed (unit plus labor); typical range of customer-reported jobs. US national rangeOctober 2026
Furnace replacement$2,823$4,814$6,896Per system, installed; typical range of customer-reported jobs. US national rangeOctober 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 Saint Ann HVAC contractors

We scored 460 Saint Ann HVAC contractors on 8 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. Unknown factors are left out of the score, 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.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn Saint Ann data
Reputation35%Bayesian-adjusted Google star ratingMeasured
Credentials15%Active state license 0.6, bond 0.2, workers’ comp 0.2Not yet collected
Review volume10%log10(reviews + 1) against the list maximumMeasured
Recency10%Share of reviews from the last 12 monthsNot yet collected
Availability10%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%Google main category 1.0, business name 0.7, additional category 0.5Measured
Proximity5%1.0 when based in the city, falling to 0 at the trade’s radiusMeasured
Completeness5%Website, photos, description, hours, claimed profile (0.2 each)Measured

HVAC contractors in Saint Ann: frequently asked questions

Who is the best HVAC contractor in Saint Ann?

By CR Score, the highest-ranked HVAC contractor in Saint Ann, MO is Hoffmann Brothers with a CR Score of 95/100. It has 4.9★ from 5,847 Google reviews. It is open 24/7. Classic Aire Care (#2) and Academy Air Heating, Cooling, Plumbing and Electric (#3) follow. We ranked 460 HVAC contractors on 8 factors, last updated October 22, 2026.

How many HVAC contractors are there in Saint Ann?

ContractorsRanked ranks 460 HVAC contractors serving Saint Ann, MO. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.

Which HVAC contractors in Saint Ann are open 24/7?

157 ranked HVAC contractors in Saint Ann post 24/7 hours. The highest-ranked are Hoffmann Brothers (#1), Classic Aire Care (#2) and Academy Air Heating, Cooling, Plumbing and Electric (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which HVAC contractors in Saint Ann work on weekends?

299 of 460 ranked HVAC contractors post Saturday hours and 250 post Sunday hours. The highest-ranked open Saturdays are Hoffmann Brothers (#1), Classic Aire Care (#2) and Academy Air Heating, Cooling, Plumbing and Electric (#3). Posted hours are office hours; crews may book weekend jobs separately.

How much does ac replacement cost in Saint Ann?

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 Saint Ann. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Saint Ann HVAC contractors have?

The median Google rating among 460 rated HVAC contractors in Saint Ann is 4.9★, with a median of 22 reviews. Hoffmann Brothers has the most, 10,949 reviews, and ranks #10. 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 Saint Ann?

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 8 published factors, led by reputation (35%), credentials (15%), review volume (10%) and recency (10%). Factors we cannot measure are left out, not scored as zero. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.

Update log for Saint Ann

  1. October 2026: CR Scores recalculated for 460 hvac contractors serving Saint Ann.
  2. October 2026: 1 duplicate listing merged.

More HVAC contractors and Saint Ann pages

Other trades in Saint Ann