Gas Leak Emergencies in Ontario Rental Properties: Landlord Protocol

A reported gas leak at an Ontario rental property is a life-safety emergency that requires an immediate, structured response. Getting this wrong has catastrophic consequences — getting it right protects lives and limits your liability.

Immediate Response Steps for a Gas Leak

When a gas leak is reported: instruct the tenant to leave the building immediately and leave doors open as they exit — do not use light switches, phones, or anything that could create a spark inside; call 911 and Enbridge Gas (or Union Gas depending on your area) emergency line immediately; do not re-enter the building until cleared by emergency services; contact your insurer within 24 hours. Gas service to a rental property is typically in the landlord's name in Ontario — you are the account holder and responsible party for utility infrastructure.

Common Sources of Gas Leaks in Ontario Rental Properties

In Ontario rental properties, the most common sources of gas leaks are: aging or improperly maintained gas appliances (furnaces, water heaters, stoves); corroded or damaged gas supply lines; improperly installed appliances after tenant or contractor modification; failed seals on gas connections; and gas line damage from renovation work or pest activity. Regular annual maintenance of all gas appliances by a TSSA-licensed technician is your best prevention strategy and a legal requirement in Ontario for rental properties.

TSSA Licensing Requirements for Gas Appliance Work

All gas appliance work in Ontario rental properties must be performed by a TSSA-licensed gas technician. This includes installation, repair, and annual maintenance of furnaces, boilers, water heaters, and gas stoves. Working with unlicensed technicians on gas systems voids your insurance, violates the TSSA Act, and creates serious personal liability. Always verify TSSA licensing before authorizing any gas work on your property — you can verify a contractor's license on the TSSA website.

Documenting and Reporting Gas Emergencies

After a gas emergency, obtain a written report from Enbridge or the utility company indicating the source and severity of the leak, the work done, and whether the service was restored safely. Keep all records of TSSA inspections, contractor work orders, and gas appliance maintenance logs. If a tenant was displaced during the emergency, document the timeline of displacement and any costs incurred. These records are essential for insurance claims and will be required if an LTB application results from the incident.

Frequently Asked Questions

Who pays if a tenant's belongings are damaged during a gas emergency evacuation?

Tenants are responsible for their own belongings — their renters insurance should cover losses. If the gas leak resulted from the landlord's failure to maintain gas appliances, the landlord may face liability for tenant property damage and personal injury claims. This is why requiring tenants to carry renters insurance and maintaining detailed maintenance records are both essential risk management practices.

Is a landlord required to perform annual gas appliance inspections in Ontario?

Ontario's Residential Tenancies Act requires landlords to maintain appliances in a good state of repair. For gas appliances, annual TSSA-licensed inspections are considered best practice and increasingly required by insurers. Some municipalities include gas appliance maintenance in their property standards bylaws. Annual inspections are a modest cost compared to the liability of a gas emergency.

Can I bill a tenant for gas leak repairs caused by their misuse?

If a gas leak was directly caused by the tenant's negligence or unauthorized modification of gas appliances, you may have grounds to claim costs under the RTA for damage above normal wear and tear. Document the cause thoroughly and consult with a property management lawyer before pursuing the tenant — the LTB is the appropriate forum for such claims in Ontario.