Updated: Aug 16, 2026
Location and Projects
Address
1010 Cedar Cross Road, Dubuque, IA, 52003
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Harlan J Willenborg Plumber
Harlan J Willenborg, 1010 Cedar Cross Rd, Dubuque, IA (Employees: James Willenborg and Jim Willenborg) holds a Contractor license and 5 other licenses according to the Iowa license board.
Their BuildZoom score of 105 ranks in the top 8% of 39,764 Iowa licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Harlan J Willenborg, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Harlan J Willenborg Services
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Harlan J Willenborg Contact Information
Phone Number: (563) 556-2134
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Address: 1010 Cedar Cross Road, Dubuque, IA 52003
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Install new water service & new 4 sewer service from city mains to inside house in basement
Valuation:
N/A
Permit #:
P23-0626
Status:
issued
Fee:
$96
Permit Type:
N/A
Building Type:
N/A
Addition 1 deduct water meter & backflow device for irrigation system
Valuation:
N/A
Permit #:
P23-0627
Status:
issued
Fee:
$56
Permit Type:
N/A
Building Type:
N/A
New addition & remodeling in phases to colonial animal hospital
Valuation:
N/A
Permit #:
P23-0552
Status:
issued
Fee:
$375
Permit Type:
N/A
Building Type:
N/A
Run water line from water main in parking lot to existing meter in pit for football field irrigation
Valuation:
N/A
Permit #:
P23-0724
Status:
issued
Fee:
$25
Permit Type:
N/A
Building Type:
N/A
Water service from main to property line
Valuation:
N/A
Permit #:
P23-0571
Status:
issued
Fee:
$41
Permit Type:
N/A
Building Type:
N/A
Upgrade men's & women's restroom to be ada compliant on lower level - application and plans attached
Valuation:
N/A
Permit #:
P21-0744
Status:
issued
Fee:
$126
Permit Type:
N/A
Building Type:
N/A
Adding 2 dog wash sinks clothes washer drain and a floor drain
Valuation:
N/A
Permit #:
P24-0191
Status:
issued
Fee:
$61
Permit Type:
N/A
Building Type:
N/A
Install water meter - connecting to city water - outside city limits of dubuque - fee waived
Valuation:
N/A
Permit #:
P21-0856
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New sewer service from main to inside garage unit
Valuation:
N/A
Permit #:
P22-0341
Status:
issued
Fee:
$41
Permit Type:
N/A
Building Type:
N/A
Plumbing for remodel/addition for senior high school
Valuation:
N/A
Permit #:
P22-0164
Status:
issued
Fee:
$2,581
Permit Type:
N/A
Building Type:
N/A
Repair sewer pipe in street replace lead water service from main to house
Valuation:
N/A
Permit #:
P21-0471
Status:
issued
Fee:
$56
Permit Type:
N/A
Building Type:
N/A
Replace pressure reducing valve for fareway foods
Valuation:
N/A
Permit #:
P24-0262
Status:
issued
Fee:
$25
Permit Type:
N/A
Building Type:
N/A
Sewer repair in back yard - property line to house
Valuation:
N/A
Permit #:
P24-0143
Status:
issued
Fee:
$25
Permit Type:
N/A
Building Type:
N/A
Two water heaters
Valuation:
N/A
Permit #:
P23-0553
Status:
issued
Fee:
$35
Permit Type:
N/A
Building Type:
N/A
Install a shower valve/water piping in basement
Valuation:
N/A
Permit #:
P24-0230
Status:
issued
Fee:
$25
Permit Type:
N/A
Building Type:
N/A
Install new 1.5 water service from main to property line with a 1.5 tap. see attached application
Valuation:
N/A
Permit #:
P20-0216
Status:
issued
Fee:
$25
Permit Type:
N/A
Building Type:
N/A
Run gas line to (2) outdoor firepits for backpocket brewing
Valuation:
N/A
Permit #:
P21-0436
Status:
issued
Fee:
$25
Permit Type:
N/A
Building Type:
N/A
Install lavatory sink condensate drain gas piping & water piping - see attached application
Valuation:
N/A
Permit #:
P20-0215
Status:
issued
Fee:
$62
Permit Type:
N/A
Building Type:
N/A
Replacing sewer service from main to house
Valuation:
N/A
Permit #:
P24-0296
Status:
issued
Fee:
$41
Permit Type:
N/A
Building Type:
N/A
Replacing water service from main to house
Valuation:
N/A
Permit #:
P24-0295
Status:
issued
Fee:
$41
Permit Type:
N/A
Building Type:
N/A
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Harlan J Willenborg License info
Verified License
| License # | C130573 |
| Status | Active |
| State | Iowa |
| Type | Contractor |
| Date Issued | 06-05-2026 |
- BuildZoom verified this license was active as of August 2026.
Verify this license's status for Harlan J Willenborg at the Iowa Workforce Development Agency.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 50960-CL |
| Status | Active |
| State | Iowa |
| Type | Plumbing And Mechanical |
- When BuildZoom last verified this license, it had an expiration date of June, 2023. Check the current license status of Harlan J Willenborg with the Iowa Department of Public Health
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 3211 |
| Status | Inactive |
| State | Iowa |
| Type | Plumbing, Hvac/R, Hydronics |
- According to the Iowa Department of Public Health, 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 Harlan J Willenborg at the Iowa Department of Public Health.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | EL005964SE |
| Status | Inactive |
| State | Iowa |
| Type | Special Electrician |
- According to the Iowa Department of Public Safety, 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 Harlan J Willenborg at the Iowa Department of Public Safety.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | C116745 |
| Status | Inactive |
| State | Iowa |
| Type | Contractor |
- According to the Iowa Workforce Development Agency, 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 Harlan J Willenborg at the Iowa Workforce Development Agency.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 3211 |
| Status | Inactive |
| State | Iowa |
| Type | Master Plumbing |
- According to the Iowa Workforce Development Agency, 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 Harlan J Willenborg at the Iowa Workforce Development Agency.
This is a sample of licensing data; click here to access a complete history.
105
BuildZoom Score
Bonded
| Bond Value | $1 |
123
Permits
- Building permit records show that Harlan J Willenborg has worked on 123 permitted projects.
Harlan J Willenborg Employees
HW
Harlan J Willenborg
Owner
JW
James Willenborg
Owner
JW
Jim Willenborg
JW
Joan Willenborg