Updated: Apr 20, 2026
Location and Projects
Address
Frederick, MD, 21701
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John K. Delborrell Plumber
John K. Delborrell, Frederick, MD holds a Plumbers license according to the Maryland license board.
Their BuildZoom score of 93 ranks in the top 27% of 58,058 Maryland licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring John K. Delborrell, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
John K. Delborrell Services
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John K. Delborrell Contact Information
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Single family dwelling install basement bathroom 1-bathtub/1-lav/1-water closets rough-in gas line for future - 1/range/1-water heater/1-furnace/1-fireplace
Valuation:
N/A
Permit #:
P18003473
Status:
complete
Fee:
$133
Permit Type:
N/A
Building Type:
N/A
Commercial plumbing addition alteration permit
2024-11-07
International union of elevator contractors remodel existing pantry sink 1-sink 1-coffee maker line 1st floor watts 007 dual check valve
Valuation:
N/A
Permit #:
P24004853
Status:
complete
Fee:
$116
Permit Type:
N/A
Building Type:
N/A
Water service - cap-off/sewer lateral - cap-off
Valuation:
N/A
Permit #:
SFP-1250679-2019
Status:
final
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Klay restaurant - 9736 traville gateway dr
Valuation:
N/A
Permit #:
PFG-1258475-2019
Status:
issued
Fee:
N/A
Permit Type:
Additional fixtur...
Building Type:
N/A
Gas water heater gas water heater
Valuation:
N/A
Permit #:
SFP-1279908-2019
Status:
final
Fee:
N/A
Permit Type:
plumbing gas
Building Type:
N/A
17 - (nr) - remodeling/additional work/tenant space
2019-12-20
[none] - 4620 n park ave
Valuation:
N/A
Permit #:
PFG-1278787-2019
Status:
final
Fee:
$509
Permit Type:
N/A
Building Type:
N/A
plumbing fuel gas (res)
Valuation:
N/A
Permit #:
PFG-1263921-2019
Status:
Issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
plumbing fuel gas (res)
Valuation:
N/A
Permit #:
PFG-1263921-2019
Status:
Issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
plumbing fuel gas (res)
Valuation:
N/A
Permit #:
PFG-1263921-2019
Status:
Issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
plumbing fuel gas (res)
Valuation:
N/A
Permit #:
PFG-1263921-2019
Status:
Issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
[none] - 000733 nova ave
Valuation:
N/A
Permit #:
PFG-1263921-2019
Status:
issued
Fee:
$229
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
PFG-1319806-2020
Status:
issued
Fee:
$291
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
PFG-1315178-2020
Status:
issued
Fee:
$315
Permit Type:
N/A
Building Type:
N/A
[none] - 6565 bock ter
Valuation:
N/A
Permit #:
PFG-1239877-2018
Status:
final
Fee:
$669
Permit Type:
N/A
Building Type:
N/A
Re-inspect fee
Valuation:
N/A
Permit #:
SFP-1262240-2019
Status:
final
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
13 - (r) - remodeling/additional work
2019-09-23
No Description Available
Valuation:
N/A
Permit #:
PFG-1265066-2019
Status:
final
Fee:
$375
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
PFG-1265061-2019
Status:
final
Fee:
$200
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
PFG-1242989-2018
Status:
issued
Fee:
N/A
Permit Type:
Additional fixtur...
Building Type:
N/A
Sfth install plumbing fixtures (1-shower 1-lav 1-water closet)
Valuation:
N/A
Permit #:
P19003127
Status:
complete
Fee:
$89
Permit Type:
N/A
Building Type:
N/A
Brp construction - 9913 mayfield dr
Valuation:
N/A
Permit #:
PFG-1243530-2018
Status:
final
Fee:
$1,195
Permit Type:
N/A
Building Type:
N/A
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BZ Score
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BZ Score
$1.5K
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BZ Score
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Projects
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Verified License
BuildZoom confirmed this contractor's license
John K. Delborrell License info
Verified License
| License # | 78739 |
| Status | Active |
| State | Maryland |
| Type | Plumbers |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for John K. Delborrell at the Maryland Department of Labor, Licensing & Regulation.
This is a sample of licensing data; click here to access a complete history.
93
BuildZoom Score
21
Permits
- Building permit records show that John K. Delborrell has worked on 21 permitted projects.
John K. Delborrell Employees
JD
John K. Delborrell
Owner