Updated: Apr 10, 2026
Location
Address
1235 Zook Rd, Atglen, PA, 19310
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William Sielski Electrical Services
William Sielski Electrical Services, 1235 Zook Rd, Atglen, PA (Employees: Sielski, William J and William J. Sielski) holds a Contractor Registration license and 5 other licenses according to the Coatesville license board.
Their BuildZoom score of 92 ranks in the top 32% of 125,106 Pennsylvania licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring William Sielski Electrical Services, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
William Sielski Electrical Services Contact Information
Phone Number: (610) 246-6375
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Address: 1235 Zook Rd, Atglen, PA 19310
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Verified License
BuildZoom confirmed this contractor's license
William Sielski Electrical Services License info
Verified License
| HIC # | CR-25-0040 |
| Status | Active |
| City | Coatesville |
| Type | Contractor Registration |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for William Sielski Electrical Services at the City of Coatesville.
This is a sample of licensing data; click here to access a complete history.
Verified License
| HIC # | PA046789 |
| Status | Active |
| State | Pennsylvania |
- BuildZoom has not verified this license since May, 2025.
Verify this license's status for William Sielski Electrical Services at the Pennsylvania Office of the Attorney General.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| HIC # | PA116852 |
| Status | Active |
| State | Pennsylvania |
| Type | All Types Of Electrical Services |
- When BuildZoom last verified this license, it had an expiration date of May, 2017. Check the current license status of William Sielski Electrical Services with the Pennsylvania Office of the Attorney General
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| HIC # | PA046789 |
| Status | Active |
| State | Pennsylvania |
| Type | Residential And Commercial Electrical Services |
- When BuildZoom last verified this license, it had an expiration date of July, 2017. Check the current license status of William Sielski Electrical Services with the Pennsylvania Office of the Attorney General
This is a sample of licensing data; click here to access a complete history.
Inactive License
| HIC # | ELEC4198145 |
| Status | Inactive |
| City | Coatesville |
| Type | Electrical Contractor |
- According to the City of Coatesville, 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 Sielski Electrical Services at the City of Coatesville.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| HIC # | ELEC9090607 |
| Status | Inactive |
| City | Coatesville |
| Type | Electrical Contractor |
- According to the City of Coatesville, 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 Sielski Electrical Services at the City of Coatesville.
This is a sample of licensing data; click here to access a complete history.
92
BuildZoom Score
Insured
| Insurer | Mutual Benefit Insurance Company |
| Insured up to | $2,000,000 |
William Sielski Electrical Services Employees
SE
Sielski Electric
Licensee
SJ
Sielski, William J
Owner Of Record For The Property
WS
William J. Sielski
William J Sielski Electrical Servic