What to do next
Log every incident
Date, time, who entered, whether notice was given and how. A pattern is what wins these cases; a single incident rarely does.
Write to the landlord citing the obligation
State the entries, that proper notice was not given, and that you require notice going forward. This creates the record and often stops it.
Apply for harassment or interference
Ontario's T2 application covers substantial interference with reasonable enjoyment and harassment; Quebec's TAL has equivalent recourse. Remedies include compensation, rent abatement and orders to stop.
Change the locks only if permitted
Tenants generally cannot change locks without the landlord's consent. If you fear for your safety, raise that specifically — different considerations apply and police involvement may be appropriate.
Frequently asked questions
How much notice is required?
Most provinces require written notice a set number of hours in advance, stating the reason and a time within permitted daytime hours. Check your province's specific requirement.
Can they enter to show the unit to buyers?
Generally yes with proper notice, and there are limits on frequency. Repeated showings arranged without notice are interference.
What counts as an emergency?
A genuine risk to person or property — flooding, fire, gas. Convenience or a suspected lease breach is not an emergency.
Can I refuse entry?
Not where notice and reason are proper. Refusing lawful entry can itself be a breach. Dispute improper entries through the tribunal instead.
This is general information, not legal advice. Laws vary by location and every situation is different — speak with a qualified lawyer about your specific circumstances.