Updated: May 01, 2026
Location and Projects
Address
6665 21St Ave, Van Horne, IA, 52346
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Janssen Waterproffing Construction
Janssen Waterproffing Inc, 6665-21 St Ave, Van Horne, IA (Owned by: Catherine Janssen) holds a Contractor license and 1 other license according to the Iowa license board.
Their BuildZoom score of 93 ranks in the top 27% of 39,764 Iowa licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Janssen Waterproffing Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Janssen Waterproffing Inc Services
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Janssen Waterproffing Inc Contact Information
Phone Number: (319) 228-8354
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Address: 6665 21St Ave, Van Horne, IA 52346
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Building Permits by Janssen Waterproffing Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Closing 11 1/2 x 50 of a sidewalk & installing a 5 x 50 temporary walk-thru canopy on sidewalk for pedestrian protection (due to caulking on alliant tower) from 9/16/13 to 9/27/13
Valuation:
N/A
Permit #:
STOC-012037-2013
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Occupy sidewalk on sw side of the alliant energy tower between 2nd and 3rd ave. from 9/16 - 9/20
Valuation:
N/A
Permit #:
STRT000272CR
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Janssen Waterproffing Inc License info
Verified License
| License # | C089530 |
| Status | Active |
| State | Iowa |
| Type | Contractor |
| Date Issued | 04-15-2026 |
| Business Type | Corporation |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Janssen Waterproffing Inc at the Iowa Workforce Development Agency.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | C089530 |
| Status | Inactive |
| State | Iowa |
| Type | General Contractor, Non Residential |
| Business Type | Corporation |
- 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 Janssen Waterproffing Inc at the Iowa Workforce Development Agency.
This is a sample of licensing data; click here to access a complete history.
93
BuildZoom Score
Janssen Waterproffing Inc Employees
RJ
Randy Janssen
Owner
CJ
Catherine Janssen
Owner
RJ
Randy Janssen