Updated: May 30, 2026
Location and Projects
Address
Catonsville, MD, 21228
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John Cook Hencken Construction
John Cook Hencken, Catonsville, MD holds a Electricians license according to the Maryland license board.
Their BuildZoom score of 96 ranks in the top 20% of 58,058 Maryland licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring John Cook Hencken, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
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John Cook Hencken Contact Information
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John Cook Hencken Catonsville
Quality
96
80th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
John Cook Hencken has a BuildZoom score of 96, which places them above 80% of 58,058 contractors in Maryland.
Activity
|
1 project
|
2025 |
|
1 project
|
2023 |
Our building permit records indicate that John Cook Hencken has worked on at least
2.0 projects over the past 3 years.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Pricing
|
1 project
|
$5k-$20k |
|
1 project
|
$20k-$50k |
|
1 project
|
$100k-$250k |
|
1 project
|
$250k-$500k |
Pro tip:
For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.
This is a sample of this contractor's permits. Click here to access their complete permit history.
New single family home located in center of lot on existing forest access road. building pad and sand mount septic area. sand mound septic perc approved by health. well drilled and tested as well
Valuation:
$450,000
Permit #:
497000
Status:
filed
Fee:
N/A
Permit Type:
Driveway
Building Type:
N/A
30'x50 prefab metal shed attachments include. site plan showing shed locations and setbacks shed elevations and floor plan showing building height etc. stamped foundation plan stamped details from manufaturer<div>
Valuation:
$28,000
Permit #:
493948
Status:
issued
Fee:
$391
Permit Type:
Resuses
Building Type:
N/A
Permanent application for new single-family home with a detached metal shed
Valuation:
$450,000
Permit #:
492838
Status:
canceled
Fee:
N/A
Permit Type:
Resbldg
Building Type:
N/A
New single family home 4 bedroom 4 bathroom 2 car garage deck porch partial finished basement <div>deck and porch additional 673sf </div><div>
Valuation:
$450,000
Permit #:
495861
Status:
issued
Fee:
$21,378
Permit Type:
Resbldg
Building Type:
N/A
Electrical for new single family dwelling - 400 amp - 4 bedroom 4 bathroom 2 car garage deck porch partial finished basement deck and porch additional 673sf<div>building permit # 495861</div>
Valuation:
$9,000
Permit #:
496288
Status:
issued
Fee:
$453
Permit Type:
Elecperm
Building Type:
N/A
Electrical - (c) add/alt - with service change
2023-09-21
Install a 478.56 kwdc rooftop photovoltaic system at 500 e diamond ave
Valuation:
$167,496
Permit #:
ELEC-31621-2023
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
John Cook Hencken License info
Verified License
| License # | 14005 |
| Status | Active |
| State | Maryland |
| Type | Electricians |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for John Cook Hencken at the Maryland Department of Labor, Licensing & Regulation.
This is a sample of licensing data; click here to access a complete history.