Updated: May 10, 2026
Location and Projects
Address
9 Curtis Avenue, Wilmington, DE, 19804
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John L. Steen, Jr Plumber
John L. Steen, Jr, 9 Curtis Ave, Wilmington, DE holds a Plumber license according to the Delaware 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 John L. Steen, Jr, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
John L. Steen, Jr Services
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John L. Steen, Jr Contact Information
Address: 9 Curtis Avenue, Wilmington, DE 19804
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Installation of new gas main and direct vent natural gas 40 gal. water heater gas test
Valuation:
$0
Permit #:
200113784
Status:
Closed
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Install inside plumbing & underground new addtn
Valuation:
$0
Permit #:
200512739
Status:
Closed
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Install sewer lateral/septic elemination
Valuation:
$0
Permit #:
200203231
Status:
Closed
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Install gas logs in existing fireplace
Valuation:
$0
Permit #:
200200709
Status:
Closed
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Sewer lateral septic elimination
Valuation:
$0
Permit #:
200203232
Status:
Closed
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Sewer lateralll/septic elimination
Valuation:
$0
Permit #:
200203233
Status:
Closed
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Sewer lateral/septic elimination
Valuation:
$0
Permit #:
200203234
Status:
Closed
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Inside plumbing for new addition
Valuation:
$0
Permit #:
200109271
Status:
Closed
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
New install sewer lateral
Valuation:
$0
Permit #:
200206960
Status:
Closed
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Install water service
Valuation:
$0
Permit #:
200211380
Status:
Closed
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Replace sewer lateral
Valuation:
$0
Permit #:
200204649
Status:
Closed
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Install water service
Valuation:
$0
Permit #:
200211364
Status:
Closed
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Install sewer lateral
Valuation:
$0
Permit #:
200212669
Status:
Closed
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Sewer lateral
Valuation:
$0
Permit #:
200212664
Status:
Closed
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Water service
Valuation:
$0
Permit #:
200209724
Status:
Closed
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
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Verified License
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John L. Steen, Jr License info
Verified License
| License # | PL-0000581 |
| Status | Active |
| State | Delaware |
| Type | Plumber |
| Business Type | Individual |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for John L. Steen, Jr at the State of Delaware.
This is a sample of licensing data; click here to access a complete history.
90
BuildZoom Score
15
Permits
- Building permit records show that John L. Steen, Jr has worked on 15 permitted projects.
John L. Steen, Jr Employees
JS
John L. Steen
Applicant