Disclaimer: The following information is for educational purposes and does not constitute legal advice. Always consult with legal counsel regarding your specific compliance obligations.
In the Ontario construction industry, the rule is brutally simple: Liability rolls uphill. Many General Contractors mistakenly believe that if a subcontractor signs a contract stating they have insurance, the GC is protected. The law says otherwise. Construction has its own specific, strict liability code under the Workplace Safety and Insurance Act (WSIA). If you allow a subcontractor to work on your site without active, valid clearance, the government stops looking at them and starts looking at you.
The Statutory Liability Trap#
Ontario’s WSIA creates a direct liability chain:
- If a subcontractor defaults on their WSIB premiums,
- And you retained them for work,
- You can be held legally responsible for their unpaid WSIB debt.
The law requires the GC to ensure the subcontractor is meeting their WSIB payment obligations. If they aren’t, the GC becomes liable to the extent of that failure, including being forced to pay the subcontractor’s outstanding premiums.
The Continuous Monitoring Mandate#
It is not enough to simply pull a clearance PDF at the start of a six-month project and file it away.
Ontario regulations create a continuous monitoring mandate for construction. If a certificate expires or is revoked before the construction work is completed, the GC is required to obtain a new certificate. Furthermore, you are explicitly prohibited from permitting a contractor to work during any period where you are aware that no certificate is in effect.
If your current process involves checking WSIB only once a month, or relying on a static PDF that doesn’t alert you to mid-month revocations, your job site is carrying massive invisible risk.
Occupational Health and Safety Act (OHSA) Fines#
Beyond the WSIB, the Ministry of Labour enforces strict penalties for lacking due diligence. If an inspector arrives on site and you cannot immediately produce valid clearance and insurance documentation for every active trade:
- Corporate Fines: Corporations can be fined up to $2,000,000 per offense under the OHSA.
- Personal Liability: Directors, officers, and supervisors can be held personally liable, facing fines of up to $1,500,000 and up to 12 months in prison.
Why Manual Processes Fail GCs#
Most GCs still rely on:
- Static PDFs
- Monthly spreadsheet checks
- Email reminders
- Manual follow-ups
These methods cannot satisfy the continuous monitoring requirement because they cannot detect:
- Mid-month revocations
- Lapsed premiums
- Suspended accounts
- Incorrect or fraudulent clearance numbers
The risk is not just administrative, it is financial, legal, and personal.
Stop Carrying Invisible Risk#
Saying “I checked their PDF at the start of the job” is not a legal defence. To protect your company, you must prove Due Diligence with an auditable, timestamped trail proving that you actively monitored their status.
RosterSure automatically verifies your subcontractors’ WSIB eligibility every few days and alerts you instantly if a status changes, ensuring you are never caught relying on stale data.
Start your free trial today and secure your job sites against statutory liability.