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Brand Certified

B. F. Mahn & Sons, Inc.

4.9
(888 reviews)

Business Details

112 W Clement St, De Soto, MO
63020, United States
(636) 586-2300
https://bfmahn.com/

About

HVAC ContractorPlumberHeating ContractorAir Conditioning Contractor
Your Local Plumbing, Heating & A/C Service Experts For 6 generations, B. F. Mahn has delivered top quality work to meet your residential or commercial plumbing and HVAC needs. We serve clients across Jefferson County and beyond with a variety of services ranging from new construction plumbing to minor daily repairs. Our business is built on a strong foundation and is known for its impeccable reputation and first quality service skills. From our beginning, we have worked to be the company you can trust, and have been resilient through ups and downs in the economy.

Location

B. F. Mahn & Sons, Inc.
112 W Clement St, De Soto, MO
63020, United States

Hours

Reviews

4.9
888 reviews
5 stars
862
4 stars
13
3 stars
6
2 stars
0
1 star
7

What are people saying?

AI-generated from recent customer reviews

Customer Service

Customers consistently praised the professionalism, friendliness, and responsiveness of the technicians and staff.

Quality of Work

The technicians were noted for their thoroughness, knowledge, and ability to resolve issues efficiently.

Timeliness

Many reviews highlighted the prompt response times and quick service, especially in emergency situations.

Pricing

While some customers found trip charges and additional fees to be high, many felt the overall pricing was reasonable for the quality of service provided.
  • TW
    The Wards
    Feb 25, 2026
    5.0
    Larry installed our new kitchen faucet today. He called ahead as promised and was friendly and courteous which we appreciate!
  • RK
    Ron Kathman
    Feb 24, 2026
    5.0
    Nolan was very professional and experienced to the problem at hand. I marked reasonable on the pricing but the only thing I a problem with is the trip coat. I live probably 7 miles from the company and $25.00 seems a little high.
  • CM
    Clinton McCormack
    Feb 16, 2026
    5.0
    I called B. F. Mahn & Sons for an emergency plumbing repair. They came to the house mid-afternoon and had the problem repaired shortly. When you need them, they come and fix the problem. Very happy with them. Their technician, Sam, was very personable and enjoyable to talk with.
  • NB
    Niki Boyer
    Feb 16, 2026
    5.0
    Our pilot light went out on our water heater, and unfortunately it would have taken two weeks for someone from our home insurance company to come out — and it would have cost us more in the long run. I called on Friday, 2/13/26 around 3:00 PM and were scheduled for Monday with a clear time frame provided. We received a text confirmation the day we called and another reminder the day of the appointment, which we really appreciated. Nolan B. arrived exactly at the time he stated. He was kind, professional, and very respectful. He quickly diagnosed and fixed the issue, and he took the time to explain everything in a way that was easy to understand. We were able to conveniently pay by card on the spot and the pricing was cheaper than quoted by home insurance company. Overall, the service was prompt, efficient, and professional. I would highly recommend B.F. Mahn & Sons for any plumbing or water heater issues.
  • JS
    Joel Speth
    Feb 16, 2026
    5.0
    Larry did a great job installing my whole-house descale filter. He was prompt, courteous, and knowledgeable about what he was doing. He didn’t leave till we were completely satisfied.

Brand Certified Facts from B. F. Mahn & Sons, Inc.

This information is certified by B. F. Mahn & Sons, Inc. and published from the brand's official system of record. Data is distributed through an enterprise-grade knowledge management platform. Learn more about our data sources
Certified March 01, 2026Yext Knowledge Graph
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