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Best HVAC Contractors in Flat River, MO (2026)

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

The short answer

  1. 1

    Best overall in Flat River: Proservice, CR Score 61/100; 4.7★ from 246 Google reviews; open 7 days a week.

  2. 5

    Best for emergencies (open 24/7): Twomey Heating & Cooling, posts 24/7 hours; ranked #5 of 23.

  3. 15

    Most-reviewed: Midwest Appliance Repair, LLC, 1,233 Google reviews at 5.0★, the most of 23 ranked; ranked #15.

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

23 Flat River HVAC contractors are ranked here by CR Score, from ten published factors. 5 are open 24/7, 13 open Saturdays and 7 open Sundays, based on posted hours. The median Google rating is 4.7★ across 23 rated businesses.

Top 10 HVAC contractors in Flat River at a glance

Top 10 HVAC contractors in Flat River at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Proservice614.7★ (246)Farmington, 7 mi awaySat · Sun · EveningsOverall
2B&G Heating & Cooling605.0★ (57)Farmington, 6 mi awaySat · Sun · Evenings—
3Nicholson Heating & Air604.8★ (204)Farmington, 7 mi awaySat · Evenings—
4Harris Heating & Cooling585.0★ (54)Farmington, 7 mi awaySat—
5Twomey Heating & Cooling584.0★ (50)Park Hills, 8 mi away24/7Emergencies
6Crystal Heating & Cooling574.7★ (136)Farmington, 3 mi away——
7B. F. Mahn & Sons, Inc.574.9★ (867)De Soto, 20 mi away——
8Yount's Commercial Refrign-AC574.0★ (11)Park Hills, 2 mi awaySat · Sun · Evenings—
9Briley Heating And Cooling563.1★ (8)Park Hills, 8 mi away24/7—
10De Soto Electrical Products554.9★ (284)De Soto, 22 mi away——

The 23 best HVAC contractors in Flat River, ranked

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

  1. Ranked #1 in Flat River

    Based in Farmington, 7 mi away

    61/100CR Score

    Ranked #1 because of its Google rating and trade focus: 4.7★ from 246 Google reviews, listed on Google as “Air conditioning contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.7★ from 246 Google reviews
    Hours
    Mon–Sun 8 AM–8 PM
    Address
    200 S Henry St, Farmington, MO 63640
  2. Based in Farmington, 6 mi away

    60/100CR Score

    Ranked #2 because of its Google rating and trade focus: 5.0★ from 57 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 57 Google reviews
    Hours
    Mon–Sun 7:30 AM–8:30 PM
    Address
    4805 Bayless Dr, Farmington, MO 63640
  3. Based in Farmington, 7 mi away

    60/100CR Score

    Ranked #3 because of its Google rating and trade focus: 4.8★ from 204 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.8★ from 204 Google reviews
    Hours
    Mon–Fri 7 AM–7 PM · Sat 9 AM–5 PM · Sun closed
    Address
    301 S Jefferson St, Farmington, MO 63640
  4. Based in Farmington, 7 mi away

    58/100CR Score

    Ranked #4 because of its Google rating and trade focus: 5.0★ from 54 Google reviews, listed on Google as “Air conditioning contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 54 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat 11 AM–2 PM · Sun closed
    Address
    415 W Karsch Blvd, Farmington, MO 63640
  5. Based in Farmington, 3 mi away

    57/100CR Score

    Ranked #6 because of its Google rating and trade focus: 4.7★ from 136 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.7★ from 136 Google reviews
    Hours
    Mon–Fri 8 AM–4:30 PM · Sat–Sun closed
    Address
    141 Busenbark Dr, Farmington, MO 63640
  6. Based in De Soto, 20 mi away

    57/100CR Score

    Ranked #7 because of its Google rating and trade focus: 4.9★ from 867 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.9★ from 867 Google reviews
    Hours
    Mon–Fri 8 AM–4 PM · Sat–Sun closed
    Address
    112 W Clement St, De Soto, MO 63020
  7. Based in Park Hills, 2 mi away

    57/100CR Score

    Ranked #8 because of its Google rating and trade focus: 4.0★ from 11 Google reviews, listed on Google as “Air conditioning contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.0★ from 11 Google reviews
    Hours
    Mon–Fri 7 AM–9 PM · Sat 7 AM–10 PM · Sun 7 AM–9 PM
    Address
    3210 Conway Rd, Park Hills, MO 63601
  8. Based in Park Hills, 8 mi away

    56/100CR Score

    Ranked #9 because of its Google rating and trade focus: 3.1★ from 8 Google reviews, listed on Google as “Air conditioning contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 3.1★ from 8 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1179 State Hwy 32, Park Hills, MO 63601
  9. Based in De Soto, 22 mi away

    55/100CR Score

    Ranked #10 because of its Google rating and trade focus: 4.9★ from 284 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.9★ from 284 Google reviews
    Hours
    Mon–Fri 7:30 AM–4:30 PM · Sat–Sun closed
    Address
    12561 MO-21, De Soto, MO 63020
  10. Based in Park Hills, 1 mi away

    54/100CR Score

    Ranked #13 because of its Google rating and trade focus: 4.0★ from 21 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.0★ from 21 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    22 Crane St Suite A, Park Hills, MO 63601
  11. Based in Farmington, 8 mi away

    54/100CR Score

    Ranked #14 because of its Google rating and trade focus: 4.6★ from 27 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.6★ from 27 Google reviews
    Hours
    Mon–Fri 8 AM–4 PM · Sat–Sun closed
    Address
    1585 Farmington Ct, Farmington, MO 63640
  12. Based in De Soto, 17 mi away

    53/100CR Score

    Ranked #15 because of its Google rating and review volume: 5.0★ from 1,233 Google reviews, the most in Flat River.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 1,233 Google reviews
    Hours
    Mon–Fri 8 AM–6 PM · Sat–Sun closed
    Address
    14012 Charter Church Rd, De Soto, MO 63020
  13. Based in Bonne Terre, 6 mi away

    53/100CR Score

    Ranked #16 because of its Google rating and trade focus: 3.7★ from 3 Google reviews, listed on Google as “Heating contractor”.

    Based on 7 of 10 factors; credentials, recency and availability not yet collected.

    • 3.7★ from 3 Google reviews
    Address
    1643 Airport Rd, Bonne Terre, MO 63628
  14. Based in Park Hills, 1 mi away

    52/100CR Score

    Ranked #20 because of its Google rating and trade focus: 3.7★ from 22 Google reviews, listed on Google as “Plumber”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 3.7★ from 22 Google reviews
    Hours
    Mon–Sat 7 AM–7 PM · Sun closed
    Address
    10 Federal Park Ave, Park Hills, MO 63601
  15. Based in Park Hills, 1 mi away

    51/100CR Score

    Ranked #21 because of its Google rating and review volume: 4.7★ from 37 Google reviews.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.7★ from 37 Google reviews
    Hours
    Mon–Tue 9 AM–4 PM · Wed closed · Thu–Fri 9 AM–4 PM · Sat 9 AM–1 PM · Sun closed
    Address
    1400 N St Joe Dr, Park Hills, MO 63601
  16. Based in De Soto, 20 mi away

    46/100CR Score

    Ranked #22 because of its Google rating and trade focus: 4.5★ from 16 Google reviews, listed on Google as “Kitchen remodeler”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.5★ from 16 Google reviews
    Hours
    Mon–Fri 9 AM–4 PM · Sat–Sun closed
    Address
    404 N Main St, De Soto, MO 63020

Also serving Flat River

7 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.

How much do HVAC contractors cost in Flat River?

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

How much do HVAC contractors cost in Flat River?
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 Flat River HVAC contractors

We scored 23 Flat River HVAC contractors on ten 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. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, 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 Flat River data
Reputation25%Google star rating, adjusted for how many reviews back itMeasured
Credentials15%Active state license, bond and workers’ comp on fileNot yet collected
Review volume10%Number of Google reviews, compared with the most-reviewed business on the listMeasured
Recency5%Share of reviews from the last 12 monthsNot yet collected
Availability5%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%How clearly the business does this trade (its Google category and name)Measured
Proximity5%Based in the city scores highest, less the farther away it isMeasured
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)Measured
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodicallyMeasured
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there areMeasured

HVAC contractors in Flat River: frequently asked questions

Who is the best HVAC contractor in Flat River?

By CR Score, the highest-ranked HVAC contractor in Flat River, MO is Proservice with a CR Score of 61/100. It has 4.7★ from 246 Google reviews. It is open 7 days a week. B&G Heating & Cooling (#2) and Nicholson Heating & Air (#3) follow. We ranked 23 HVAC contractors on ten factors, last updated October 22, 2026.

How many HVAC contractors are there in Flat River?

ContractorsRanked ranks 23 HVAC contractors serving Flat River, MO. Another 7 within 25 mi are listed but not ranked yet. Counts are as of October 2026.

Which HVAC contractors in Flat River are open 24/7?

5 ranked HVAC contractors in Flat River post 24/7 hours. The highest-ranked are Twomey Heating & Cooling (#5), Briley Heating And Cooling (#9) and Sheet Metal Contractors, Inc. (#11). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which HVAC contractors in Flat River work on weekends?

13 of 23 ranked HVAC contractors post Saturday hours and 7 post Sunday hours. The highest-ranked open Saturdays are Proservice (#1), B&G Heating & Cooling (#2) and Nicholson Heating & Air (#3). Posted hours are office hours; crews may book weekend jobs separately.

How much does ac replacement cost in Flat River?

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

What Google rating do Flat River HVAC contractors have?

The median Google rating among 23 rated HVAC contractors in Flat River is 4.7★, with a median of 27 reviews. Midwest Appliance Repair, LLC has the most, 1,233 reviews, and ranks #15. 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 Flat River?

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 ten published factors, led by reputation (25%), credentials (15%), review volume (10%) and trade focus (10%). A business with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.

Update log for Flat River

  1. October 2026: CR Scores recalculated for 23 hvac contractors serving Flat River.