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B. F. Mahn & Sons, Inc.HVAC contractor in De Soto, MO

B. F. Mahn & Sons, Inc. is an HVAC contractor at 112 W Clement St, De Soto, MO 63020, ranked #5 of 63 HVAC contractors in De Soto and rated 4.9 from 867 Google reviews. Open Monday to Friday.

De Soto, MOUpdated 0 paid placements in any rankingHow we rank

Call (636) 586-2300Website ↗

Key facts

Key facts about B. F. Mahn & Sons, Inc.
Address112 W Clement St, De Soto, MO 63020Get directions
Phone(636) 586-2300
Websitebfmahn.com
HoursMonday to Friday: 8 AM – 4 PM
Google rating4.9 from 867 Google reviews

Trades

Each trade shows the evidence we matched it on.

Service area

Serves De Soto and 8 towns within 25 miles: Festus, Pevely, Bonne Terre, Barnhart, Park Hills, Flat River, Arnold and Murphy.

Based in De Soto, MOView on map

Opening hours

Opening hours for B. F. Mahn & Sons, Inc.
DayHours
Monday8 AM – 4 PM
Tuesday8 AM – 4 PM
Wednesday8 AM – 4 PM
Thursday8 AM – 4 PM
Friday8 AM – 4 PM
SaturdayClosed
SundayClosed
  • Open evenings — no
  • Open Saturdays — no
  • Open Sundays — no

Typical heating and cooling prices

Typical heating and cooling prices
JobLowTypicalHigh
AC replacementPer system, installed (unit plus labor); typical range of customer-reported jobs. US national range$3,887$5,978$8,073
Furnace replacementPer system, installed; typical range of customer-reported jobs. US national range$2,823$4,814$6,896

Market ranges for the trade, checked October 2026, not a quote from this business. Ask for a written estimate.

Compare nearby HVAC contractors

B. F. Mahn & Sons, Inc. compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
B. F. Mahn & Sons, Inc. (this business)—614.9 (867)—NoNo
Classic Aire Care#3625.0 (1,400)—YesYes23.8 mi
DC Heating & Cooling#4615.0 (29)—YesYes20.6 mi
Academy Air Heating, Cooling, Plumbing and Electric#6614.8 (875)—YesYes19.8 mi

See all 63 ranked HVAC contractors in De Soto

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

4.9from 867 Google reviews

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Questions about B. F. Mahn & Sons, Inc.

How is B. F. Mahn & Sons, Inc. ranked in De Soto?

B. F. Mahn & Sons, Inc. is ranked #5 of 63 HVAC contractors in De Soto by CR Score, with 61 out of 100 as of October 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity, claimed profile, partnered and ContractorsRanked reviews. No business can pay to change its rank.

What are B. F. Mahn & Sons, Inc.’s hours?

B. F. Mahn & Sons, Inc. is open Monday to Friday. Its listed hours are Monday to Friday, 8 AM – 4 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.

What areas does B. F. Mahn & Sons, Inc. serve?

Serves De Soto and 8 towns within 25 miles: Festus, Pevely, Bonne Terre, Barnhart, Park Hills, Flat River, Arnold and Murphy. The list is based on the business's location and the usual service radius for heating and cooling. Confirm your address is covered when you call.

What do Google reviews say about B. F. Mahn & Sons, Inc.?

B. F. Mahn & Sons, Inc. has a rating of 4.9 from 867 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

How do I contact B. F. Mahn & Sons, Inc.?

Call B. F. Mahn & Sons, Inc. on (636) 586-2300. The business is at 112 W Clement St, De Soto, MO 63020. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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