Updated: Apr 26, 2026
Location and Projects
Address
Greenwood, DE, 19950
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John W. Conner Plumber
John W. Conner, Greenwood, DE holds a Plumbers license and 1 other license according to the Maryland 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 W. Conner, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
John W. Conner Services
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John W. Conner Contact Information
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This is a sample of this contractor's permits. Click here to access their complete permit history.
16x32 inground swimming pool 450sq of concrete decking100ft of vinly fencing some fence existing
Valuation:
$31,825
Permit #:
87929
Status:
complete
Fee:
$180
Permit Type:
Swimming pool
Building Type:
N/A
Install new pvc sewer line from sewer main to addition - install dwv water lines & fixtures in addition
Valuation:
N/A
Permit #:
201100802
Status:
final
Fee:
$60
Permit Type:
N/A
Building Type:
Residential
Install dwv lines cpvc water lines prep sink three bay sink 2 hand sinks water heater & grease trap
Valuation:
N/A
Permit #:
201009548
Status:
final
Fee:
$60
Permit Type:
N/A
Building Type:
Commercial
Install pvc pipe & fittings for dwv line to new 3 pc bathroom install cpvc water lines & fixtures
Valuation:
N/A
Permit #:
201011288
Status:
final
Fee:
$60
Permit Type:
N/A
Building Type:
Residential
Install water lines new pvc waste and vent lines; new fixtures and trim and new gas water heater
Valuation:
N/A
Permit #:
201012654
Status:
final
Fee:
$60
Permit Type:
N/A
Building Type:
Residential
Relocate 2 pvc drain to addition relocate cpvc water for sink install loop vent in wall
Valuation:
N/A
Permit #:
201013132
Status:
final
Fee:
$60
Permit Type:
N/A
Building Type:
Residential
Replace hwh; relocate kitchen sink; replace tub and diverter; drain for kitchen sink
Valuation:
N/A
Permit #:
201008475
Status:
final
Fee:
$110
Permit Type:
N/A
Building Type:
Residential
Plumbing for kitchen sink & gas line for ornamental fixture(10/12/06 revision contractor responsible for install of all gas fixtures)
Valuation:
N/A
Permit #:
200601924
Status:
final
Fee:
$50
Permit Type:
N/A
Building Type:
Residential
Inside plumbing/sewer lateral/water service new addtn. 9/29/05 revised drawing to show new pipe layout. revision 02/01/06 install gas line
Valuation:
N/A
Permit #:
200512052
Status:
final
Fee:
$150
Permit Type:
N/A
Building Type:
Commercial
Remove existing water heater and replace with new bradford white power vent gas water heater (retro-
Valuation:
$0
Permit #:
201000575
Status:
Closed
Fee:
$25
Permit Type:
N/A
Building Type:
N/A
Install pvc pipe and fittings for drains waste and vent lines. install toilet shower double vanity and whirl pool bathroom (provided by owner)
Valuation:
N/A
Permit #:
201005158
Status:
final
Fee:
$60
Permit Type:
N/A
Building Type:
Residential
Install new poly water line from house to addition. install sewer line from house to addition. rough in and set fixtures for three piece bathroom shower and kitchen
Valuation:
N/A
Permit #:
200907509
Status:
final
Fee:
$60
Permit Type:
N/A
Building Type:
Residential
Install drain waste and vents for new four piece bathroom. install new water lines and fixtures for bathroom
Valuation:
N/A
Permit #:
200904977
Status:
final
Fee:
$50
Permit Type:
N/A
Building Type:
Residential
Relocate new pvc dwv lines. relocate new cpvc water lines for domestic water. install new fixtures and trim
Valuation:
N/A
Permit #:
200803747
Status:
final
Fee:
$50
Permit Type:
N/A
Building Type:
Residential
Install pvc dwv. install pex water pipes. install studer vent. install shower vanity toilet with ejector pump
Valuation:
N/A
Permit #:
200801176
Status:
final
Fee:
$50
Permit Type:
N/A
Building Type:
Residential
Install new pvc for dwv. install new cpvc for domestic water lines. install fixtures and trim supplied by owner
Valuation:
N/A
Permit #:
200803748
Status:
final
Fee:
$50
Permit Type:
N/A
Building Type:
Residential
Install new pvc dwv. install new cpvc domestic water lines new bathroom fixtures kitchen sink powder room fixtures water heater
Valuation:
N/A
Permit #:
200803384
Status:
final
Fee:
$50
Permit Type:
N/A
Building Type:
Residential
Replace water pipe as needed. replace d.w.v. as needed. install new tub toilet vanity and kitchen sink
Valuation:
N/A
Permit #:
200712349
Status:
final
Fee:
$50
Permit Type:
N/A
Building Type:
Residential
Install gas line to heater in attic. heater is 125, 000 btu lens of run and valve locations on drawing
Valuation:
N/A
Permit #:
200701268
Status:
final
Fee:
$50
Permit Type:
N/A
Building Type:
Residential
Install new d.w.v c.p.v.c water heater and fixtures for new plumbing in 2.5 bathroom house; install new 40 sewer main and 40 poly water main
Valuation:
N/A
Permit #:
200703732
Status:
final
Fee:
$50
Permit Type:
N/A
Building Type:
Residential
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Verified License
BuildZoom confirmed this contractor's license
John W. Conner License info
Verified License
| License # | 10788 |
| Status | Active |
| State | Maryland |
| Type | Plumbers |
- BuildZoom verified this license was active as of December 2025.
Verify this license's status for John W. Conner at the Maryland Department of Labor, Licensing & Regulation.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | PL-0002207 |
| Status | Active |
| State | Delaware |
| Type | Plumber |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for John W. Conner at the State of Delaware.
This is a sample of licensing data; click here to access a complete history.
90
BuildZoom Score
169
Permits
- Building permit records show that John W. Conner has worked on 169 permitted projects.
John W. Conner Employees
JC
John W. Conner
Owner