Updated: Feb 10, 2026
Location and Projects
Address
Ortonville, MI, 48462
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William Mathisen Construction
William Mathisen, Ortonville, MI holds a Mechanical Contractor license and 3 other licenses according to the Michigan license board.
Their BuildZoom score of 90 indicates that they are licensed or registered but we do not have additional information about them.
Their license was verified as active when we last checked. If you are thinking of hiring William Mathisen, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
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William Mathisen Contact Information
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This is a sample of this contractor's permits. Click here to access their complete permit history.
1 dishwasher 2 hose connections 1 laundry tray 3 lavatories 2 toilets 1 sinks 2 shower trap
Valuation:
N/A
Permit #:
PP170384
Status:
issued
Fee:
$462
Permit Type:
plumbing
Building Type:
N/A
Bathroom: 1 toilet 1 sink 1 shower trap 1 laundry tray
Valuation:
N/A
Permit #:
PP190043
Status:
issued
Fee:
$165
Permit Type:
plumbing
Building Type:
N/A
1 dishwasher 3 sinks
Valuation:
N/A
Permit #:
PP200070
Status:
issued
Fee:
$310
Permit Type:
plumbing
Building Type:
N/A
No Description Available
Valuation:
$0
Permit #:
RP058581
Status:
ISSUED
Fee:
$120
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$0
Permit #:
RP057511
Status:
ISSUED
Fee:
$120
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$0
Permit #:
RP055190
Status:
CLOSED
Fee:
$75
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$0
Permit #:
RP054532
Status:
CLOSED
Fee:
$75
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$0
Permit #:
MIR430726
Status:
CLOSED
Fee:
$75
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$0
Permit #:
MIR430727
Status:
CLOSED
Fee:
$75
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$0
Permit #:
MIR430728
Status:
CLOSED
Fee:
$75
Permit Type:
N/A
Building Type:
N/A
Design services section
Valuation:
$0
Permit #:
P255527
Status:
FINAL
Fee:
$35
Permit Type:
N/A
Building Type:
N/A
75529
Valuation:
$0
Permit #:
M358227
Status:
FINAL
Fee:
$288
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$0
Permit #:
P158168
Status:
CLOSED
Fee:
$175
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$0
Permit #:
P103815
Status:
CLOSED
Fee:
$1,573
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$0
Permit #:
RP031603
Status:
CLOSED
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$0
Permit #:
RP031604
Status:
CLOSED
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$0
Permit #:
RP015812
Status:
CLOSED
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$0
Permit #:
P200368
Status:
CLOSED
Fee:
$1,559
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$0
Permit #:
RP996618
Status:
CLOSED
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$0
Permit #:
M240430
Status:
CLOSED
Fee:
$2,448
Permit Type:
N/A
Building Type:
N/A
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
William Mathisen License info
Verified License
| License # | 7118923 |
| Status | Active |
| State | Michigan |
| Type | Mechanical Contractor |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for William Mathisen at the Michigan Department of Licensing & Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 7118923 |
| Status | Active |
| State | Michigan |
| Type | Mechanical Contractor |
- BuildZoom has not verified this license since August, 2024.
Verify this license's status for William Mathisen at the Michigan Department of Licensing & Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | INSP00911 |
| Status | Active |
| State | Michigan |
| Type | Building Act 54 Official |
- BuildZoom has not verified this license since October, 2024.
Verify this license's status for William Mathisen at the Michigan Department of Licensing & Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | INSP00934 |
| Status | Active |
| State | Michigan |
| Type | Building Act 54 Official |
- BuildZoom has not verified this license since October, 2024.
Verify this license's status for William Mathisen at the Michigan Department of Licensing & Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
90
BuildZoom Score
41
Permits
- Building permit records show that William Mathisen has worked on 41 permitted projects.