Plumbing Service De Soto MO | Call B. F. Mahn & Sons
112 W Clement St, De Soto, MO 63020
Questions and Answers
What should I do if I have a leak under my kitchen sink or from my dishwasher in De Soto?
For common leaks under sinks or from dishwashers, we recommend first turning off the water supply to the fixture to prevent further damage. Then, give us a call. Our plumbers are familiar with the plumbing layouts in many De Soto area homes and can quickly diagnose whether it's a simple faucet repair, a loose drain connection, or a more involved issue. We provide honest assessments and upfront estimates to get your kitchen back in working order efficiently.
Do you offer maintenance plans for HVAC systems in Jefferson County?
Yes, we offer HVAC system maintenance to help our Jefferson County neighbors improve efficiency and prevent costly breakdowns. Regular maintenance, including cleaning and inspections, is key to extending the life of your heating and cooling equipment, especially given our local seasonal shifts. As a full-service provider, we can handle the installation, repair, and ongoing care of your system to keep your home comfortable year-round.
I need a new water heater installed. What does the process involve?
Our process starts with a complimentary consultation at your home. We'll assess your hot water needs, the type of unit (traditional tank or tankless), and the existing setup to provide a clear estimate. Our licensed technicians handle the full installation or replacement, including safe disconnection, proper installation, and testing. We also handle any necessary updates to gas lines or water pipes, ensuring everything is up to code and functioning correctly before we leave.
Company Background
For six generations, B. F. Mahn & Sons has been a cornerstone of De Soto, providing reliable plumbing and HVAC services to our Jefferson County community. The business is built on a foundation of hands-on knowledge and family values, with roots that go back over 150 years. Biff Mahn himself started learning the trade at age ten, holding flashlights and navigating tight crawl spaces, gaining the priceless experience that still informs our work today. As a family-owned and operated company, we treat every client like family, offering trusted service for everything from new construction to daily repairs. Our team is licensed, bonded, and insured, providing complimentary estimates for major projects and dedicated to being the resilient, trustworthy local experts you can count on.
Provided Services
- Drain installation
- Drain repair
- HVAC installation or replacement
- Gas line installation
- Bathtub installation
Business Location & Hours
| Mon: | 8:00 AM - 4:00 PM |
| Tue: | 8:00 AM - 4:00 PM |
| Wed: | 8:00 AM - 4:00 PM |
| Thu: | 8:00 AM - 4:00 PM |
| Fri: | 8:00 AM - 4:00 PM |
| Sat: | Closed |
| Sun: | Closed |





