Updated: May 19, 2026
Location and Projects
Address
Rockland, MA, 02370
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William J Callahan Electrician
William J Callahan, Rockland, MA holds a Sheet Metal license and 1 other license according to the Massachusetts license board.
Their BuildZoom score of 90 indicates that they are licensed or registered but we do not have additional information about them.
Their license was verified as active when we last checked. If you are thinking of hiring William J Callahan, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
William J Callahan Contact Information
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This is a sample of this contractor's permits. Click here to access their complete permit history.
No Description Available
Valuation:
$2,379
Permit #:
BP-2019-142
Status:
issued
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
William J Callahan License info
Verified License
| License # | 4951 |
| Status | Active |
| State | Massachusetts |
| Type | Sheet Metal |
- BuildZoom verified this license was active as of August 2025.
Verify this license's status for William J Callahan at the Commonwealth of Massachusetts E-Licensing Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 4951 |
| Status | Inactive |
| State | Massachusetts |
| Type | Electrician |
- According to the Commonwealth of Massachusetts E-Licensing Board, 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 William J Callahan at the Commonwealth of Massachusetts E-Licensing Board.
This is a sample of licensing data; click here to access a complete history.