Industry Guide
The Complete Guide to Commercial Cleaning Compliance in Ontario
Everything facility managers need to know about WSIB, OHSA, and avoiding $15,000+ fines
JD
Published on Oct 4, 2025
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12 min read
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In the world of facility management in Ontario, overlooking compliance isn't just a minor oversight—it's a significant financial and legal risk. The province has a robust framework of regulations designed to protect workers, and the commercial cleaning industry is firmly in its sights. From the bustling corridors of downtown Toronto skyscrapers to the sprawling manufacturing plants in the GTA, every commercial space must adhere to these standards. Failure to do so can result in stop-work orders, legal battles, and fines that can easily climb into the tens of thousands of dollars.

WSIB: The Foundation of Worker Protection
The Workplace Safety and Insurance Board (WSIB) is the cornerstone of Ontario's worker protection laws. It's a mandatory insurance program for most businesses, including commercial cleaning services. This no-fault insurance provides benefits and services to workers who have been injured or have become ill as a result of their job.
For facility managers, hiring a cleaning contractor without valid WSIB coverage is a critical error. If a cleaner is injured on your property and their employer isn't covered, the financial and legal liability can shift directly to you and your company. Always request and verify a WSIB Clearance Certificate from your cleaning provider before signing any contract. It's your only guarantee that they are in good standing.
"Verifying a WSIB Clearance Certificate isn't just paperwork; it's your frontline defense against inherited liability."
OHSA: The Rulebook for a Safe Workplace
The Occupational Health and Safety Act (OHSA) outlines the duties of all workplace parties—employers, supervisors, and workers—to ensure a safe environment. In the context of commercial cleaning, this involves several key areas:
- WHMIS Training: The Workplace Hazardous Materials Information System is crucial. Cleaners regularly handle chemicals that can be harmful if misused. OHSA mandates that all workers exposed to such materials receive comprehensive WHMIS training.
- Personal Protective Equipment (PPE): Employers must provide appropriate PPE, such as gloves, goggles, and masks, and train workers on how to use them correctly.
- Safety Protocols: This includes procedures for things like slip-and-fall prevention (e.g., using "wet floor" signs), safe use of equipment, and emergency response.
Ministry of Labour inspectors can visit a site unannounced. If they find violations, they have the authority to issue orders, stop work, and levy significant fines. Fines for corporations can reach up to $1.5 million per offense, making compliance an essential part of your risk management strategy.