Updated: Apr 20, 2026
Location and Projects
Address
Cockeysville, MD, 21030
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John Frederick Donellan Plumber
John Frederick Donellan, Cockeysville, MD holds a Plumbers license and 1 other license according to the Maryland license board.
Their BuildZoom score of 108 ranks in the top 5% of 58,058 Maryland licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring John Frederick Donellan, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
John Frederick Donellan Services
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John Frederick Donellan Contact Information
Phone Number: (410) 446-7283
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John Frederick Donellan Cockeysville
Quality
108
95th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
John Frederick Donellan has a BuildZoom score of 108, which places them above 95% of 58,058 contractors in Maryland.
Activity
|
84 projects
|
2025 |
|
2 projects
|
2023 |
Our building permit records indicate that John Frederick Donellan has worked on at least
86.0 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.
Experience
|
60 projects
|
Plumbing projects |
Analyzing permits over the last 4 years shows that John Frederick Donellan mostly works on
plumbing project
projects.
Pricing
|
11 projects
|
< $5k |
|
4 projects
|
$5k-$20k |
The typical size of their permits is approximately $4,000. This graph shows the distribution of these job values.
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.
Building Permits by John Frederick Donellan
This is a sample of this contractor's permits. Click here to access their complete permit history.
Replacement water heater (heat pump water heater to be installed)
Valuation:
N/A
Permit #:
BRCM-25-002554
Status:
expired
Fee:
$57
Permit Type:
Interior trades only
Building Type:
N/A
Direct replacement of gas furnace 60000 btus and gas water heater 40000 btus 1 plumbing fixture mechanical pump/dispenser
Valuation:
N/A
Permit #:
BRCM-25-008406
Status:
complete
Fee:
$146
Permit Type:
Interior trades only
Building Type:
N/A
Direct replacement of furnace and air conditioning
Valuation:
N/A
Permit #:
BRCM-25-007526
Status:
complete
Fee:
$57
Permit Type:
Interior trades only
Building Type:
N/A
Direct replacement of gas furnace-60000 btus
Valuation:
N/A
Permit #:
BRCM-25-009929
Status:
complete
Fee:
$57
Permit Type:
Interior trades only
Building Type:
N/A
Direct replacement of electric water heater
Valuation:
N/A
Permit #:
BRCM-25-008194
Status:
complete
Fee:
$46
Permit Type:
Interior trades only
Building Type:
N/A
Direct replacement of electric water heater
Valuation:
N/A
Permit #:
BRCM-25-006133
Status:
complete
Fee:
$46
Permit Type:
Interior trades only
Building Type:
N/A
Direct replacement of electric water heater
Valuation:
N/A
Permit #:
BRCM-25-003202
Status:
complete
Fee:
$46
Permit Type:
Interior trades only
Building Type:
N/A
Direct replacement of gas water heater gas by others
Valuation:
N/A
Permit #:
BRCM-25-010123
Status:
complete
Fee:
$83
Permit Type:
Interior trades only
Building Type:
N/A
Direct replacement of gas water heater40000 btus
Valuation:
N/A
Permit #:
BRCM-25-008411
Status:
complete
Fee:
$83
Permit Type:
Interior trades only
Building Type:
N/A
Direct replacement of gas water heater 40000 btus- 1 fixture
Valuation:
N/A
Permit #:
BRCM-25-007958
Status:
complete
Fee:
$83
Permit Type:
Interior trades only
Building Type:
N/A
Direct replacement of gas water heater
Valuation:
N/A
Permit #:
BRCM-25-006865
Status:
complete
Fee:
$52
Permit Type:
Interior trades only
Building Type:
N/A
Direct replacement of gas water heater
Valuation:
N/A
Permit #:
BRCM-25-005637
Status:
complete
Fee:
$52
Permit Type:
Interior trades only
Building Type:
N/A
Direct replacement of gas furnace and air conditioning gas and electric by others
Valuation:
N/A
Permit #:
BRCM-25-016139
Status:
payment due
Fee:
$88
Permit Type:
Interior trades only
Building Type:
N/A
Direct replacement of gas furnace 60000 btus
Valuation:
N/A
Permit #:
BRCM-25-008774
Status:
complete
Fee:
$88
Permit Type:
Interior trades only
Building Type:
N/A
Direct replacement of gas furnace 60000 btus
Valuation:
N/A
Permit #:
BRCM-25-007558
Status:
complete
Fee:
$57
Permit Type:
Interior trades only
Building Type:
N/A
Direct replacement of electric dhw -1 fixture
Valuation:
N/A
Permit #:
BRCM-25-006063
Status:
complete
Fee:
$52
Permit Type:
Interior trades only
Building Type:
N/A
Direct replacement of electric dhw
Valuation:
N/A
Permit #:
BRCM-25-006060
Status:
complete
Fee:
$46
Permit Type:
Interior trades only
Building Type:
N/A
Direct replacement of oil boiler
Valuation:
N/A
Permit #:
BRCM-25-004924
Status:
complete
Fee:
$52
Permit Type:
Interior trades only
Building Type:
N/A
Direct replacement of gas boiler
Valuation:
N/A
Permit #:
BRCM-25-004790
Status:
complete
Fee:
$52
Permit Type:
Interior trades only
Building Type:
N/A
Direct replacement of gas boiler
Valuation:
N/A
Permit #:
BRCM-25-002552
Status:
expired
Fee:
$57
Permit Type:
Interior trades only
Building Type:
N/A
Similar Contractors See more
120
BZ Score
-
Avg Project
-
Projects
120
BZ Score
$1.5K
Avg Project
-
Projects
120
BZ Score
$1.5K
Avg Project
-
Projects
John Frederick Donellan Reviews
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Verified License
BuildZoom confirmed this contractor's license
John Frederick Donellan License info
Verified License
| License # | 19018 |
| Status | Active |
| State | Maryland |
| Type | Plumbers |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for John Frederick Donellan at the Maryland Department of Labor, Licensing & Regulation.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CON-4915 |
| Status | Inactive |
| City | Annapolis |
| Type | Plumber |
- According to the The City of Annapolis, MD, 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 John Frederick Donellan at the The City of Annapolis, MD.
This is a sample of licensing data; click here to access a complete history.
108
BuildZoom Score
107
Permits
- Building permit records show that John Frederick Donellan has worked on 107 permitted projects.
John Frederick Donellan Employees
JD
John Frederick Donellan
Owner