Updated: May 30, 2026
Location and Projects
Address
4710 INNOVATION DR, DeForest, WI, 53598
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Opsahl, Mark S Plumber
Opsahl, Mark S, 4710 Innovation Dr, Deforest, WI (Owned by: Anthony Martin) holds a Plumber license and 8 other licenses according to the Wisconsin Rapids license board.
Their BuildZoom score of 110 ranks in the top 4% of 94,017 Wisconsin licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Opsahl, Mark S, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Opsahl, Mark S Services
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Opsahl, Mark S Contact Information
Phone Number: (608) 513-7283
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Address: 4710 INNOVATION DR, Deforest, WI 53598
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Opsahl, Mark S Deforest
Quality
110
96th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Opsahl, Mark S has a BuildZoom score of 110, which places them above 96% of 94,017 contractors in Wisconsin.
Activity
|
69 projects
|
2025 |
|
34 projects
|
2024 |
|
15 projects
|
2023 |
Our building permit records indicate that Opsahl, Mark S has worked on at least
118.0 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
|
20 projects
|
New Constructions |
|
11 projects
|
Home Additions |
|
10 projects
|
Commercial Renovations |
|
117 projects
|
Plumbing projects |
Analyzing permits over the last 4 years shows that Opsahl, Mark S mostly works on
plumbing project
and new construction
projects.
Pricing
|
1 project
|
< $5k |
|
2 projects
|
$5k-$20k |
|
1 project
|
$50k-$100k |
|
1 project
|
$250k-$500k |
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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Addition and renovation - addition second floor bedroom alteration to addition second floor bathroom and office alteration to kitchen and laundry room
Valuation:
N/A
Permit #:
BLDNRP-2025-03706
Status:
issued
Fee:
$151
Permit Type:
Addition & altera...
Building Type:
N/A
Bathroom first floor - change layout: replace shower valve/trim replace faucet and hook up new sink replace toilet
Valuation:
N/A
Permit #:
BLDPLM-2025-02034
Status:
complete
Fee:
$25
Permit Type:
Repair/alteration
Building Type:
1 & 2 family
Addition- single story bedroom kitchen bathroom w partially exposed lower level and heated attached garage
Valuation:
N/A
Permit #:
BLDNRP-2025-00287
Status:
issued
Fee:
$109
Permit Type:
Addition
Building Type:
Single family
Mfcb - multi-family buildings (3+ dwelling units) or commercial buildings new construction additions
2022-01-05
Street front 1st floor units 115 117 155 157 only. building out 1st floor commercial spaces to live work units
Valuation:
$250,000
Permit #:
MFCB-22-4
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
The maxwell - new 5 story 40 unit apartment with 2 levels of interior parking
Valuation:
N/A
Permit #:
BLDNCP-2025-01523
Status:
issued
Fee:
$6,460
Permit Type:
New
Building Type:
N/A
Horizon construction group - new tenant alteration divide from future tenant space
Valuation:
N/A
Permit #:
BLDPLM-2025-07849
Status:
complete
Fee:
$55
Permit Type:
Repair/alteration
Building Type:
Commercial
Kitchen alteration - remove section of nonbearing wall. update master and main bathrooms - finishes only
Valuation:
N/A
Permit #:
BLDPLM-2024-14217
Status:
complete
Fee:
$80
Permit Type:
Repair/alteration
Building Type:
1 & 2 family
Chiroway-zimmerman - new tenant alteration
Valuation:
N/A
Permit #:
BLDPLM-2025-03979
Status:
complete
Fee:
$47
Permit Type:
Repair/alteration
Building Type:
Commercial
Kitchen remodel: drywall work to replace cabinetry in same footprint
Valuation:
N/A
Permit #:
BLDPLM-2025-03101
Status:
issued
Fee:
$32
Permit Type:
Repair/alteration
Building Type:
1 & 2 family
Expand kitchen turn dining room into pantry upgrade bathroom - drywall
Valuation:
N/A
Permit #:
BLDPLM-2025-01013
Status:
complete
Fee:
$56
Permit Type:
Repair/alteration
Building Type:
1 & 2 family
The chesapeake - new 5 story 44 unit apartment with 2 levels of parking
Valuation:
N/A
Permit #:
BLDNCP-2025-01541
Status:
issued
Fee:
$5,911
Permit Type:
New
Building Type:
N/A
Addition of second story to existing single family home
Valuation:
N/A
Permit #:
BLDNRP-2025-02574
Status:
issued
Fee:
$86
Permit Type:
Addition
Building Type:
N/A
Plumbing commercial
Valuation:
$287,394
Permit #:
2100038
Status:
applied
Fee:
$899
Permit Type:
N/A
Building Type:
N/A
Nano coffee - new tenant alteration: relocate utility sink on site to back storage room install new 3 compartment kitchen sink
Valuation:
N/A
Permit #:
BLDPLM-2024-16060
Status:
complete
Fee:
$125
Permit Type:
Repair/alteration
Building Type:
Commercial
Water heater switching from tank to tankless
Valuation:
N/A
Permit #:
BLDPLM-2025-06483
Status:
complete
Fee:
$25
Permit Type:
Replacement
Building Type:
Commercial
Wmc - new tenant alteration
Valuation:
N/A
Permit #:
BLDPLM-2025-04030
Status:
complete
Fee:
$40
Permit Type:
Repair/alteration
Building Type:
Commercial
Ashirwad indian cuisine - ashiwad indian cuisine - new tenant alteration combine space with 130 state st replace grease trap
Valuation:
N/A
Permit #:
BLDNCP-2025-02996
Status:
complete
Fee:
$117
Permit Type:
Alteration
Building Type:
N/A
Alteration to convert one bathroom into two
Valuation:
N/A
Permit #:
BLDPLM-2025-00286
Status:
issued
Fee:
$48
Permit Type:
Repair/alteration
Building Type:
1 & 2 family
The fur seasons - new tenant alteration: new stainless single bowl sink and faucet installed in exisiting storage room
Valuation:
N/A
Permit #:
BLDPLM-2024-18998
Status:
complete
Fee:
$40
Permit Type:
Repair/alteration
Building Type:
Commercial
Pure choice farms - new tenant alteration
Valuation:
N/A
Permit #:
BLDPLM-2025-09242
Status:
issued
Fee:
$40
Permit Type:
Repair/alteration
Building Type:
Commercial
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Opsahl, Mark S License info
Verified License
| License # | 230577 - PM |
| Status | Active |
| City | Wisconsin Rapids |
| Type | Plumber |
- BuildZoom verified this license was active as of August 2025.
Verify this license's status for Opsahl, Mark S at the City of Wisconsin Rapids.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 230577 |
| Status | Active |
| City | Stevens Point |
- When BuildZoom last verified this license, it had an expiration date of March, 2024. Check the current license status of Opsahl, Mark S with the City of Stevens Point
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 230577 |
| Status | Active |
| City | Milwaukee |
| Type | Plumbing |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Opsahl, Mark S at the City of Milwaukee License Search.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 230577 |
| Status | Active |
| State | Wisconsin |
| Type | Plumber |
- BuildZoom has not verified this license since March, 2024.
Verify this license's status for Opsahl, Mark S at the Wisconsin Department of Safety and Professional Services.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 226109 |
| Status | Active |
| State | Wisconsin |
| Type | Plumber |
- BuildZoom has not verified this license since April, 2023.
Verify this license's status for Opsahl, Mark S at the Wisconsin Department of Safety and Professional Services.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 230577 |
| Status | Inactive |
| State | Wisconsin |
| Type | Powts Maintainer |
- According to the Wisconsin Department of Safety and Professional Services, 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 Opsahl, Mark S at the Wisconsin Department of Safety and Professional Services.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 226109 |
| Status | Inactive |
| City | Milwaukee |
| Type | Plumbing |
- According to the City of Milwaukee License Search, 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 Opsahl, Mark S at the City of Milwaukee License Search.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 230577 |
| Status | Inactive |
| City | Allouez |
| Type | Plumbing Contractor, Plumbing |
- According to the Village of Allouez, 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 Opsahl, Mark S at the Village of Allouez.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | PC764316 |
| Status | Inactive |
| State | Minnesota |
| Type | Plumbing |
- 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 Opsahl, Mark S at the Minnesota Department of Labor & Industry.
This is a sample of licensing data; click here to access a complete history.
110
BuildZoom Score
Insured
| Insurer | Society Insurance |
362
Permits
- Building permit records show that Opsahl, Mark S has worked on 362 permitted projects.
Opsahl, Mark S Employees
AM
Anthony Martin
Owner
MO
Mark Opsahl
OM
Opsahl Mark
RD
Robert H Dvorak