Black & McDonald Limited / Southern Ontario Electrical Utility Region
Thornhill, Ontario
Business information
- Listed business name
- Black & Mcdonald Limited
- Address
- 75 COMMERCE VALLEY DR E, ATTN SALARY PAYROLL DEPARTMENT, THORNHILL, ON, L3T7N9, CA
- Trades
- Electrical
- Phone
- 416-298-9977
- Contact source
- View the saved contact source
Clearance and registration
- Saved WSIB result
- A0000JZ1FH valid from 20-Aug-2026 to 19-Nov-2026
- WSIB checked
- October 4, 2026
- Saved clearance period ends
- 2026-11-19
- Official WSIB record
- Check the current WSIB record
- ESA licence number
- 7001122
- Check current ESA status
Saved clearance information is dated evidence. Status can change; check the official record before relying on it. A listing or registration does not rate workmanship or endorse a business.
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