Updated: May 31, 2026
Location and Projects
Address
Gaithersburg, MD, 20879
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Joseph A Pietrowski, Jr Plumber
Joseph A Pietrowski, Jr, Gaithersburg, MD holds a Plumbers license and 1 other license according to the Maryland license board.
Their BuildZoom score of 0 does not rank in the top 50% of Maryland contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Joseph A Pietrowski, Jr, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Joseph A Pietrowski, Jr Services
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Joseph A Pietrowski, Jr Contact Information
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Building Permits by Joseph A Pietrowski, Jr
This is a sample of this contractor's permits. Click here to access their complete permit history.
1-4 fixtures - water heater replacement
Valuation:
N/A
Permit #:
BP-20-00475
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
1-4 appliances - replacing gas furnace
Valuation:
N/A
Permit #:
BP-21-01223
Status:
complete
Fee:
$90
Permit Type:
N/A
Building Type:
N/A
Replace air conditioning system
Valuation:
N/A
Permit #:
BP-20-00696
Status:
complete
Fee:
$61
Permit Type:
N/A
Building Type:
N/A
Replace air conditioning unit
Valuation:
N/A
Permit #:
BP-22-02163
Status:
complete
Fee:
$61
Permit Type:
N/A
Building Type:
N/A
1-4 fixtures - replace furnace
Valuation:
N/A
Permit #:
BP-22-00578
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace air conditioning system
Valuation:
N/A
Permit #:
BP-22-00577
Status:
complete
Fee:
$61
Permit Type:
N/A
Building Type:
N/A
Replace heat pump system
Valuation:
N/A
Permit #:
BP-22-01852
Status:
complete
Fee:
$61
Permit Type:
N/A
Building Type:
N/A
Replace heat pump system
Valuation:
N/A
Permit #:
BP-21-00004
Status:
complete
Fee:
$61
Permit Type:
N/A
Building Type:
N/A
3a - replace furnace
Valuation:
N/A
Permit #:
BP-21-00003
Status:
complete
Fee:
$90
Permit Type:
N/A
Building Type:
N/A
Replace furnace
Valuation:
N/A
Permit #:
BP-22-02164
Status:
complete
Fee:
$90
Permit Type:
N/A
Building Type:
N/A
Replace furnace
Valuation:
N/A
Permit #:
BP-22-01605
Status:
complete
Fee:
$90
Permit Type:
N/A
Building Type:
N/A
1-4 fixtures - furnace replacement
Valuation:
N/A
Permit #:
BP-21-02030
Status:
complete
Fee:
$90
Permit Type:
N/A
Building Type:
N/A
#112 - replace heat pump system
Valuation:
N/A
Permit #:
BP-21-03069
Status:
complete
Fee:
$61
Permit Type:
N/A
Building Type:
N/A
Replace air conditioning system
Valuation:
N/A
Permit #:
BP-21-02767
Status:
complete
Fee:
$61
Permit Type:
N/A
Building Type:
N/A
Replace air conditioning system
Valuation:
N/A
Permit #:
BP-21-02659
Status:
complete
Fee:
$61
Permit Type:
N/A
Building Type:
N/A
Replace air conditioning system
Valuation:
N/A
Permit #:
BP-21-02658
Status:
complete
Fee:
$61
Permit Type:
N/A
Building Type:
N/A
Air conditioning replacement
Valuation:
N/A
Permit #:
BP-21-02119
Status:
complete
Fee:
$61
Permit Type:
N/A
Building Type:
N/A
Replace air conditioning system
Valuation:
N/A
Permit #:
BP-21-02029
Status:
complete
Fee:
$61
Permit Type:
N/A
Building Type:
N/A
Unit 3l - replace air conditioning unit
Valuation:
N/A
Permit #:
BP-21-03386
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace heat pump system
Valuation:
N/A
Permit #:
BP-21-03304
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Joseph A Pietrowski, Jr License info
Verified License
| License # | 84611 |
| Status | Active |
| State | Maryland |
| Type | Plumbers |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Joseph A Pietrowski, Jr 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 # | 3315 |
| Status | Active |
| State | Maryland |
| Type | Heating, Ventilation, Air Conditioning And Refrigeration |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Joseph A Pietrowski, Jr at the Maryland Department of Labor, Licensing & Regulation.
This is a sample of licensing data; click here to access a complete history.
ALERT*
BuildZoom Score
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- *No active license on file. If you are Joseph A Pietrowski, Jr, click “This is My Business” to update your information.
25
Permits
- Building permit records show that Joseph A Pietrowski, Jr has worked on 25 permitted projects.
Joseph A Pietrowski, Jr Employees
JP
Joseph A Pietrowski
Owner
JJ
Joseph A Pietrowski, Jr
Owner