Do garage contractors in Ottawa need WSIB coverage and how do I verify it?

Any contractor performing garage construction, renovation, or repair work in Ottawa should carry WSIB (Workplace Safety and Insurance Board) coverage, and as a homeowner hiring them, understanding what this means and how to verify it protects you from potentially serious financial liability.

WSIB is Ontario's workplace insurance system. When a contractor has active WSIB coverage, it means that if one of their workers is injured on your property, the medical costs, lost wages, and rehabilitation expenses are covered through WSIB rather than through a lawsuit against the contractor or, critically, against you as the property owner. In Ontario, if you hire a contractor who does not have WSIB coverage and a worker is injured on your property, you as the homeowner can be held liable for WSIB costs. The WSIB can and does pursue homeowners for these costs, which can amount to tens or even hundreds of thousands of dollars for serious injuries.

The construction industry in Ontario is classified as a compulsory coverage industry under WSIB, which means most construction businesses are legally required to register and maintain active coverage. This includes garage builders, concrete contractors, roofers, framers, electricians, and virtually anyone doing physical construction work. There are limited exemptions for sole proprietors with no employees, but even many sole operators carry voluntary WSIB coverage because general contractors and informed homeowners require it.

Verifying a contractor's WSIB status is straightforward and free. You can check online through the WSIB Clearance Certificate system at wsib.ca. Ask your contractor for their WSIB account number and their legal business name, then look them up. What you are looking for is an active clearance certificate, which confirms the business is registered, has no outstanding premiums owing, and is in good standing. A clearance certificate is valid for a specific date range, so make sure it covers the period when work will be performed on your property.

You can also ask the contractor to provide you with a clearance certificate directly. Most professional garage contractors in Ottawa are accustomed to this request and can generate a current certificate from their WSIB online account in minutes. If a contractor is evasive or claims WSIB is not required for their trade, that is a significant red flag.

Beyond WSIB, you should also verify that your garage contractor carries commercial general liability (CGL) insurance with a minimum of $2 million in coverage, which is the industry standard in Ottawa. This covers property damage — for example, if a contractor's equipment damages your home, driveway, or a neighbour's property during the garage project. Ask for a copy of their insurance certificate and confirm it is current.

For electrical work specifically, the contractor must also be registered with the Electrical Safety Authority (ESA) and pull ESA permits for the work. For structural and foundation work, a City of Ottawa building permit is required, and the contractor should be handling the permit application as part of their scope.

The bottom line is that WSIB coverage is not optional for garage construction in Ottawa — it is a legal requirement for most contractors and a critical protection for you as the homeowner. A professional contractor will have their WSIB clearance, liability insurance, and applicable trade registrations ready to show you without hesitation. If they do not, keep looking. The Ottawa Construction Network directory can help you connect with properly credentialed garage contractors who carry all required coverage.

---

Looking for experienced contractors? The Ottawa Construction Network connects Ottawa homeowners with qualified professionals:

• 613Bins
• JC Carpentry
• Humble Homes - property maintenance
• The Granite shop
• Best Hand2Hand moving company