What is a WSIB clearance certificate and how do I verify it?

A WSIB clearance certificate is proof that an Ontario contractor has no outstanding workplace safety insurance debts and is in good standing with the Workplace Safety and Insurance Board - it's essential verification before hiring any contractor in Ottawa.

In Ontario, all contractors with employees must carry WSIB coverage. This protects both their workers and you as the homeowner. If a contractor doesn't have valid WSIB coverage and a worker gets injured on your property, you could be held liable for medical costs and compensation claims.

What the Certificate Shows

A WSIB clearance certificate confirms the contractor:

• Has active WSIB coverage for their workers


• Is current on all WSIB premium payments


• Has no outstanding claims or debts with WSIB


• Is authorized to work on construction projects in Ontario

The certificate includes the contractor's business name, WSIB account number, and validity dates. Certificates are typically valid for 30-60 days, so make sure you're getting a current one.

How to Verify WSIB Status in Ottawa

You have several options to verify a contractor's WSIB status:

Direct Verification: Ask the contractor to provide their current WSIB clearance certificate. They can obtain this instantly online through their WSIB account or by calling WSIB at 1-800-387-0750.

Online Verification: Visit wsib.ca and use their clearance verification tool. You'll need the contractor's WSIB account number and business name to confirm their status.

Phone Verification: Call WSIB directly at 1-800-387-0750. Have the contractor's business name and WSIB account number ready.

Red Flags to Watch For

Be cautious if a contractor in Ottawa tells you they don't need WSIB because they're "just a sole proprietor" or "don't have employees." While true sole proprietors without employees aren't required to carry WSIB, many contractors who claim this actually use subcontractors or have workers they're not properly covering.

Never accept excuses like "my WSIB is being renewed" or "I can get it next week." A legitimate contractor should be able to provide current clearance immediately. If they can't, walk away - this is often a sign of financial problems or non-compliance.

Protecting Yourself

Always verify WSIB clearance before signing any contract or allowing work to begin on your Ottawa property. Include a clause in your contract requiring the contractor to maintain valid WSIB coverage throughout the project. For larger renovations, consider asking for updated clearance certificates monthly.

Remember, WSIB verification is just one part of proper contractor vetting. You should also verify their business license with the City of Ottawa (613-580-2424), check ESA licensing for electrical work (esasafe.com), and confirm TSSA certification for gas work (tssa.org).

For current WSIB rates and requirements, visit wsib.ca or call their customer service line. This verification step takes just minutes but can save you thousands in potential liability.