Updated: Dec 07, 2025
Location and Projects
Address
112 W Clement St, De Soto, MO, 63020
Use our bidding system to
request a quote
B.F. Mahn & Sons Plumber
Their BuildZoom score of 92 ranks in the top 32% of 23,328 Missouri licensed contractors.
If you are thinking of hiring B.F. Mahn & Sons, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
B.F. Mahn & Sons Services
Start a project today:
B.F. Mahn & Sons Contact Information
Phone Number: (636) 586-2300
Edit
Address: 112 W Clement St, De Soto, MO 63020
Edit
Do you work for this business? Unlock this free profile to update company info and see who's viewing your profile.
This is a sample of this contractor's permits. Click here to access their complete permit history.
No Description Available
Valuation:
N/A
Permit #:
PB24-0070
Status:
triage
Fee:
$30
Permit Type:
plumbing
Building Type:
N/A
Sewer repair
Valuation:
N/A
Permit #:
PB22-0206
Status:
triage
Fee:
$60
Permit Type:
plumbing
Building Type:
N/A
Sewer lateral repair
Valuation:
N/A
Permit #:
PB25-0199
Status:
expired
Fee:
$50
Permit Type:
Sewer lateral
Building Type:
N/A
Sewer lateral repair
Valuation:
N/A
Permit #:
PB24-0054
Status:
expired
Fee:
$30
Permit Type:
plumbing
Building Type:
N/A
Similar Contractors See more
116
BZ Score
$3.9K
Avg Project
-
Projects
License # P8696
Saint Louis, MO
118
BZ Score
$7.8K
Avg Project
-
Projects
License # P9314
Saint Louis, MO
116
BZ Score
$2.7K
Avg Project
-
Projects
B.F. Mahn & Sons Reviews
BuildZoom hasn't received any reviews for B.F. Mahn & Sons. Click here to be alerted when reviews are posted about them.
Recent Buildzoom Projects
Let us find you a plumber in your area today
We'll search our vast network of Plumbers and connect
you with one that meets your needs today.
B.F. Mahn & Sons License info
License Not Verified
| License # | M001 |
| Status | Active |
| County | Jefferson County |
| Type | Mechanical Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2020. Check the current license status of B.F. Mahn & Sons with the Jefferson County Building Division
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | P001 |
| Status | Active |
| County | Jefferson County |
| Type | Plumbing Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2020. Check the current license status of B.F. Mahn & Sons with the Jefferson County Building Division
This is a sample of licensing data; click here to access a complete history.
92
BuildZoom Score
B.F. Mahn & Sons Employees
BM
Biff Mahn
Owner