Updated: Jun 20, 2026
Location and Projects
Address
5028 PLUM AVE, Duluth, MN, 55804
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Mehrman & Sons Plumbing
Mehrman & Sons Plumbing, 5028 Plum Ave, Duluth, MN (Employee: Robert G. Mehrman) holds a Plumbing license and 6 other licenses according to the Minnesota license board.
Their BuildZoom score of 104 ranks in the top 9% of 77,973 Minnesota licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Mehrman & Sons Plumbing, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Mehrman & Sons Plumbing Services
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Mehrman & Sons Plumbing Contact Information
Phone Number: (218) 391-6497
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Address: 5028 PLUM AVE, Duluth, MN 55804
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Mehrman & Sons Plumbing Duluth
Quality
104
91st percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Mehrman & Sons Plumbing has a BuildZoom score of 104, which places them above 91% of 77,973 contractors in Minnesota.
Activity
|
1 project
|
2026 |
|
8 projects
|
2025 |
|
20 projects
|
2024 |
|
13 projects
|
2023 |
Our building permit records indicate that Mehrman & Sons Plumbing has worked on at least
42.0 projects over the past 3 years.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Experience
|
32 projects
|
Plumbing projects |
|
4 projects
|
Sewer laterals |
Analyzing permits over the last 4 years shows that Mehrman & Sons Plumbing mostly works on
plumbing project
and sewer lateral
projects.
Pricing
|
20 projects
|
< $5k |
|
13 projects
|
$5k-$20k |
The typical size of their permits is approximately $3,500. This graph shows the distribution of these job values.
Pro tip:
For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.
Building Permits by Mehrman & Sons Plumbing
This is a sample of this contractor's permits. Click here to access their complete permit history.
Plumbing (25 or fewer openings) - commercial & 3+ multi-family
2025-03-13
Repipe 1 shower; 1 toilet and 1lav in 1 washroom repipe 1 toilet 1 lav in 2nd washroom on main floor
Valuation:
$6,000
Permit #:
CSPLUMC-2501-0002
Status:
complete
Fee:
$201
Permit Type:
N/A
Building Type:
N/A
Repipe water waste and vent to existing second floor bathroom toilet lav sink and shower
Valuation:
$6,000
Permit #:
CSPLUMR-2505-2007
Status:
issued
Fee:
$201
Permit Type:
N/A
Building Type:
N/A
Plumbing (25 or fewer openings) - commercial & 3+ multi-family
2024-11-20
Water waste and vent piping in new shop floor drain and flammable waste trap in garage floor drain sink and toilet in washroom
Valuation:
$5,000
Permit #:
CSPLUMC-2411-0120
Status:
issued
Fee:
$193
Permit Type:
N/A
Building Type:
N/A
Water waste and vent piping for first floor kitchen laundry and bathroom and second floor bathroom
Valuation:
$10,000
Permit #:
CSPLUMR-2410-1121
Status:
filed
Fee:
$295
Permit Type:
N/A
Building Type:
N/A
Rough in beiow grade water waste and vent piping in new building
Valuation:
$5,000
Permit #:
CSPLUMR-2510-4182
Status:
issued
Fee:
$181
Permit Type:
N/A
Building Type:
N/A
Gas piping to unit heater in garage
Valuation:
$1,000
Permit #:
CSGASR-2412-0156
Status:
complete
Fee:
$87
Permit Type:
N/A
Building Type:
N/A
Hvac (new or full system replacement) - 1 or 2 family dwelling
2024-12-30
Install unit heater in garage
Valuation:
$2,500
Permit #:
CSHVACR-2412-0695
Status:
final
Fee:
$227
Permit Type:
N/A
Building Type:
N/A
New sewer line from house to main
Valuation:
$5,000
Permit #:
CSPLUMR-2509-3962
Status:
complete
Fee:
$181
Permit Type:
N/A
Building Type:
N/A
New sewer line from house to main
Valuation:
$5,000
Permit #:
CSPLUMR-2509-3960
Status:
complete
Fee:
$181
Permit Type:
N/A
Building Type:
N/A
Repipe shower drain and install new electric water heater
Valuation:
$3,000
Permit #:
CSPLUMR-2409-0964
Status:
issued
Fee:
$152
Permit Type:
N/A
Building Type:
N/A
Install water heater connect to gas line install fixtures
Valuation:
$2,000
Permit #:
BPLUM2405-110
Status:
issued
Fee:
$132
Permit Type:
Residential
Building Type:
N/A
2304-074re-piping for kitchen sinks
Valuation:
$800
Permit #:
BPLUM2304-074
Status:
final
Fee:
$78
Permit Type:
N/A
Building Type:
N/A
Plumbing (25 or fewer openings) - commercial & 3+ multi-family
2024-03-25
Pipe water waste and vent on commercial building lower unit
Valuation:
$2,000
Permit #:
BPLUM2403-057
Status:
issued
Fee:
$132
Permit Type:
N/A
Building Type:
N/A
Hvac (furnace or boiler replacement) - 1 or 2 family dwelling
2023-04-21
Replace boiler
Valuation:
$6,000
Permit #:
BHVAC2304-059
Status:
final
Fee:
$173
Permit Type:
N/A
Building Type:
N/A
Rough in water waste and vent piping for 2 new bathrooms ad
Valuation:
$5,000
Permit #:
BPLUM2010-022
Status:
final
Fee:
$141
Permit Type:
N/A
Building Type:
N/A
Hvac (new or full system replacement) - 1 or 2 family dwelling
2022-11-23
Install gas heater in detached garage
Valuation:
$1,000
Permit #:
BHVAC2211-049
Status:
final
Fee:
$196
Permit Type:
N/A
Building Type:
N/A
Water waste & vent 2 upstairs units
Valuation:
$6,000
Permit #:
BPLUM2401-033
Status:
issued
Fee:
$213
Permit Type:
N/A
Building Type:
N/A
Re-piping first floor bathroom and first and second floor kitchen sinks work in both units
Valuation:
$3,500
Permit #:
BPLUM2212-050
Status:
final
Fee:
$161
Permit Type:
N/A
Building Type:
N/A
Run gas line to detached garage
Valuation:
$1,000
Permit #:
BGASP2211-021
Status:
final
Fee:
$81
Permit Type:
N/A
Building Type:
N/A
Relocate meter gas pipe from meter to existing gas piping
Valuation:
$300
Permit #:
BGASP2110-019
Status:
final
Fee:
$30
Permit Type:
N/A
Building Type:
N/A
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Mehrman & Sons Plumbing Reviews
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Verified License
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Mehrman & Sons Plumbing License info
Verified License
| License # | PM038219 |
| Status | Active |
| State | Minnesota |
| Type | Plumbing |
| Business Type | Not Available |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Mehrman & Sons Plumbing at the Minnesota Department of Labor & Industry.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | MB003023 |
| Status | Active |
| State | Minnesota |
| Type | Mechanical Contractor Bond |
| Business Type | Not Available |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Mehrman & Sons Plumbing at the Minnesota Department of Labor & Industry.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | PC643446 |
| Status | Active |
| State | Minnesota |
| Type | Plumbing |
| Business Type | Not Available |
- BuildZoom verified this license was active as of December 2025.
Verify this license's status for Mehrman & Sons Plumbing at the Minnesota Department of Labor & Industry.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | MIMB003023 |
| Status | Active |
| State | Minnesota |
| Type | Mechanical Contractor Bond |
| Business Type | Not Available |
- When BuildZoom last verified this license, it had an expiration date of July, 2010. Check the current license status of Mehrman & Sons Plumbing with the Minnesota Department of Labor & Industry
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| Status | Active |
| City | Duluth |
| Type | Plumb & Hvac Con |
| Business Type | Not Available |
- When BuildZoom last verified this license, it had an expiration date of December, 2024. Check the current license status of Mehrman & Sons Plumbing with the The City of Duluth, MN
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | BF038219 |
| Status | Inactive |
| State | Minnesota |
| Type | Plumbing |
| Business Type | Not Available |
- According to the Minnesota Department of Labor & Industry, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Mehrman & Sons Plumbing at the Minnesota Department of Labor & Industry.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | PM38219 |
| Status | Inactive |
| State | Minnesota |
| Type | Master Plumber |
| Business Type | Not Available |
- According to the Minnesota Department of Labor & Industry, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Mehrman & Sons Plumbing at the Minnesota Department of Labor & Industry.
This is a sample of licensing data; click here to access a complete history.
104
BuildZoom Score
687
Permits
- Building permit records show that Mehrman & Sons Plumbing has worked on 687 permitted projects.
Mehrman & Sons Plumbing Employees
RM
Robert G. Mehrman