Updated: Jun 28, 2026
Location and Projects
Address
Jefferson, MD, 21755
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Michael W. Kolker Electrician
Michael W. Kolker, Jefferson, MD holds a Electricians license and 2 other licenses 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 Michael W. Kolker, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Michael W. Kolker Contact Information
Phone Number: (410) 530-9032
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Electrical to wire bathroom remodel (1) outlet (1) fan and (5) switches
Valuation:
N/A
Permit #:
2023-04063
Status:
issued
Fee:
$130
Permit Type:
N/A
Building Type:
N/A
Electrical for 100 amp temporary service for future renovations to dwelling
Valuation:
N/A
Permit #:
2023-04061
Status:
complete
Fee:
$105
Permit Type:
N/A
Building Type:
N/A
Electrical to rewire 1 347 sq. ft. dwelling to include 100 amp service
Valuation:
N/A
Permit #:
2023-04062
Status:
complete
Fee:
$215
Permit Type:
N/A
Building Type:
N/A
Electrical to install 14 lights and 15 outlets in basement
Valuation:
N/A
Permit #:
2021-03650
Status:
complete
Fee:
$130
Permit Type:
N/A
Building Type:
N/A
Electrical master registration
Valuation:
N/A
Permit #:
EL-M-1893
Status:
approved
Fee:
$150
Permit Type:
N/A
Building Type:
N/A
Wo# 754004644 - replace heavy up not over 400 amp
Valuation:
N/A
Permit #:
BP-20-00194
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Minor alterations - first 40 outlets - screened porch
Valuation:
N/A
Permit #:
BP-21-02157-01
Status:
final
Fee:
$122
Permit Type:
N/A
Building Type:
N/A
Service heavy up ; replacing old service and adding new
Valuation:
N/A
Permit #:
195765
Status:
complete
Fee:
N/A
Permit Type:
Elecperm
Building Type:
N/A
Building permit # 130769 hood outlets lights new tenant no change to space previous a/p 66595 *revision 6/8/15 - yes to plumbing adding new equipment (oven and hood)-ab **
Valuation:
$1
Permit #:
131846
Status:
complete
Fee:
$229
Permit Type:
Elecperm
Building Type:
N/A
First 50 outlets - addition outlets & switches to all the new rooms
Valuation:
N/A
Permit #:
BP-22-02112-01
Status:
final
Fee:
$122
Permit Type:
N/A
Building Type:
N/A
County non-residential electrical permit
2012-10-23
Install 7 led exit lights 13 exterior wall-packs 55 led lightsticks with external drivers with comprable circuitry for - installation of new racking system for 65, 500 sq ft of existing warehouse to be used by walmart and zoning certification for walmart a pharmaceutical distribution facility hours of operation will be monday - friday dayshift number of employees will be 20
Valuation:
N/A
Permit #:
2012-04374
Status:
complete
Fee:
$240
Permit Type:
N/A
Building Type:
N/A
Electrical permit
Install a 20 kw - 80 panel photovoltaic solar system on roof of barn
Valuation:
$121,000
Permit #:
108094
Status:
issued
Fee:
N/A
Permit Type:
Alteration
Building Type:
Single family dwe...
Electrical permit
Building permit # 117978|21'x54 above ground pool
Valuation:
$800
Permit #:
130681
Status:
issued
Fee:
N/A
Permit Type:
Accessory
Building Type:
Single family dwe...
County non-residential electrical permit
2012-10-17
Install led lighting and replace existing lighting fixtures in bay area offices and outside with comparable circuitry for - 65, 500 sq ft of existing warehouse to be used by walmart pharmaceutical distribution facility
Valuation:
N/A
Permit #:
2012-04202
Status:
complete
Fee:
$260
Permit Type:
N/A
Building Type:
N/A
Electrical permit
Install solar photovoltaic system on roof of detached garage; 4/5 panels in rack mounted fixed position
Valuation:
$12,000
Permit #:
97001
Status:
issued
Fee:
N/A
Permit Type:
Alteration
Building Type:
Single family dwe...
Electrical permit
Changing out meter and cable from meter to inside
Valuation:
N/A
Permit #:
112634
Status:
issued
Fee:
N/A
Permit Type:
Replace
Building Type:
Single family dwe...
Electrical permit
Install 2 kw - 8 panel photovoltaic solar system on roof on barn
Valuation:
$16,121
Permit #:
108097
Status:
issued
Fee:
N/A
Permit Type:
Alteration
Building Type:
Single family dwe...
Electrical permit
36x42 pole building for storage only|9/21/09 revision: building now 36x27 & change in setbacks due to j.horman zoning requirements. blb
Valuation:
$15,000
Permit #:
81475
Status:
issued
Fee:
N/A
Permit Type:
Accessory
Building Type:
Single family dwe...
Electrical permit
Installation of 8 cat drops 8 camera drops 2 speakers 2 mics and misc if needed
Valuation:
N/A
Permit #:
167546
Status:
issued
Fee:
N/A
Permit Type:
Install
Building Type:
Nonresidential bu...
Electrical permit
Roof mounted 2k solar panels on sfd;(8 panels)
Valuation:
$16,000
Permit #:
104461
Status:
issued
Fee:
N/A
Permit Type:
Alteration
Building Type:
Single family dwe...
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Michael W. Kolker License info
Verified License
| License # | 7812 |
| Status | Active |
| State | Maryland |
| Type | Electricians |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Michael W. Kolker 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-1752 |
| Status | Inactive |
| City | Annapolis |
| Type | Electrical Cont |
- 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 Michael W. Kolker at the The City of Annapolis, MD.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | T1-0004927 |
| Status | Inactive |
| State | Delaware |
| Type | Electrician |
- According to the State of Delaware, 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 Michael W. Kolker at the State of Delaware.
This is a sample of licensing data; click here to access a complete history.
93
BuildZoom Score
Insured
| Insurer | Erie |
27
Permits
- Building permit records show that Michael W. Kolker has worked on 27 permitted projects.
Michael W. Kolker Employees
MK
Michael W. Kolker
Owner