Updated: Apr 23, 2026
Location and Projects
Headquarters Address
Hanover, PA, 17331
Local address
Westminster, MD, 21158
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Gregory Martin Johnson Plumber
Gregory Martin Johnson, Westminster, MD (Employees: Gregory Evan Johnson and James Lolli Architect, Llc) holds a Electricians license and 2 other licenses according to the Maryland license board.
Their BuildZoom score of 99 ranks in the top 15% of 58,058 Maryland licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Gregory Martin Johnson, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
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Building Permits by Gregory Martin Johnson
This is a sample of this contractor's permits. Click here to access their complete permit history.
******** interior renovation on main concourse level of stadium to concessions booth 153 to include ********* scope of work: ------ interior alterations -------- structural floors doors walls ceilings -------- trades ------- mechanical electrical plumbing as per plans and as per code
Valuation:
N/A
Permit #:
BCCM-25-002445
Status:
complete
Fee:
$491
Permit Type:
Interior alterati...
Building Type:
N/A
Modify plumbing to accommodate renovated lab areas. <div>related permit #493646</div><div>*9/23/25 revision to remove gas work (humidifier) off permit.*</div>
Valuation:
N/A
Permit #:
494906
Status:
complete
Fee:
$358
Permit Type:
Plumbperm
Building Type:
N/A
New plumber to finish this project. the original plumbing permit was 445071 and this permit is to set the fixtures and get the final inspection.<div>*12/30/24 revision - delete (2) nonres sinks and (1) nonres water conditioner. please addition (1) other - humidifier* scw</div>
Valuation:
N/A
Permit #:
480172
Status:
complete
Fee:
$179
Permit Type:
Plumbperm
Building Type:
N/A
New plumber to finish this project the original gas permit number 476470. all that is left is to get the final gas inspection
Valuation:
N/A
Permit #:
480174
Status:
complete
Fee:
$148
Permit Type:
Plumbperm
Building Type:
N/A
Plumbing for tenant fit-out; new labs and open offices: waste vent water and gas instantaneous water heaters<div>
Valuation:
N/A
Permit #:
464166
Status:
complete
Fee:
$604
Permit Type:
Plumbperm
Building Type:
N/A
Renovate existing space to include office and research labs. work to include plumbing: waste vent water piping.<div>
Valuation:
N/A
Permit #:
464160
Status:
complete
Fee:
$238
Permit Type:
Plumbperm
Building Type:
N/A
Renovate existing space with plumbing: waste vent and water piping for new labs and open office areas.<div>6.15.23 - revision to addition 1 electric water heater
Valuation:
N/A
Permit #:
464168
Status:
complete
Fee:
$341
Permit Type:
Plumbperm
Building Type:
N/A
Renovate existing space to include plumbing waste vent and water piping in labs and open office spaces.<div>
Valuation:
N/A
Permit #:
464163
Status:
complete
Fee:
$288
Permit Type:
Plumbperm
Building Type:
N/A
Plumbing for vanilla box: waste vent & water piping for new labs and open offices.<div>
Valuation:
N/A
Permit #:
464165
Status:
complete
Fee:
$288
Permit Type:
Plumbperm
Building Type:
N/A
Existing tenant change of space. reallocate 90 sq. ft. of an existing closet/storage room into an ada restroom.<div>
Valuation:
N/A
Permit #:
487786
Status:
complete
Fee:
$154
Permit Type:
Plumbperm
Building Type:
N/A
Plumbing work for renovation of an existing building to include new labs sinks kitchenettes and water heaters<div>
Valuation:
N/A
Permit #:
370772
Status:
complete
Fee:
$829
Permit Type:
Plumbperm
Building Type:
N/A
Underground foundation work only for future tenant fitout- core permit 370303
Valuation:
N/A
Permit #:
393870
Status:
complete
Fee:
$949
Permit Type:
Plumbperm
Building Type:
N/A
Astrazeneca - phase 3 only - 3 instantaneous hwh's & gas piping
Valuation:
N/A
Permit #:
BP-23-00501-03
Status:
issued
Fee:
$90
Permit Type:
N/A
Building Type:
N/A
Remove existing grease trap and replace with new
Valuation:
N/A
Permit #:
BP-21-01524
Status:
complete
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Tenant fit-out to include restrooms office area and research labs
Valuation:
N/A
Permit #:
417825
Status:
complete
Fee:
$1,872
Permit Type:
Plumbperm
Building Type:
N/A
Plumbing work for tenant fit-out
Valuation:
N/A
Permit #:
419162
Status:
complete
Fee:
$285
Permit Type:
Plumbperm
Building Type:
N/A
Replace line/load service cable
Valuation:
$0
Permit #:
2014006E0130
Status:
Expired
Fee:
N/A
Permit Type:
New
Building Type:
N/A
3 ex. bedrms 1-new total of 4 when fin 2 ex. bathrms 1 new total of 3
Valuation:
N/A
Permit #:
B9003614
Status:
APPR
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No change from the previous permit for slab set backs are the same
Valuation:
N/A
Permit #:
B9602524
Status:
APPR
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential addition single family dwelling permit
2006-12-13
Sfd-replace existing deck and addition screened porch 24x18 w/steps
Valuation:
$13,000
Permit #:
B06008797
Status:
Completed
Fee:
$111
Permit Type:
N/A
Building Type:
N/A
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120
BZ Score
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120
BZ Score
$1.5K
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Projects
120
BZ Score
$1.5K
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Projects
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Verified License
BuildZoom confirmed this contractor's license
Gregory Martin Johnson License info
Verified License
| License # | 11460 |
| Status | Active |
| State | Maryland |
| Type | Electricians |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Gregory Martin Johnson 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 # | 15673 |
| Status | Active |
| State | Maryland |
| Type | Plumbers |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Gregory Martin Johnson 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 # | 11460 |
| Status | Inactive |
| State | Maryland |
| Type | Electricians |
- According to the Maryland Department of Labor, Licensing & Regulation, 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 Gregory Martin Johnson at the Maryland Department of Labor, Licensing & Regulation.
This is a sample of licensing data; click here to access a complete history.
99
BuildZoom Score
12
Permits
- Building permit records show that Gregory Martin Johnson has worked on 12 permitted projects.
Gregory Martin Johnson Employees
GJ
Gregory Evan Johnson
Owner
GJ
Gregory Martin Johnson
Owner
JL
James Lolli Architect, Llc
Owner