When a Roommate Changes Locks in Quebec

Roommates & Shared Housing Quebec 4 min read · published March 29, 2026 Flag of Quebec

Lock changes by a roommate can leave tenants locked out, stressed, and unsure of their rights. In Quebec, renters have legal protections and options for restoring access and resolving disputes without escalation. This guide explains what to do right away, how to document the situation, when to contact your landlord or the Tribunal administratif du logement, and which official forms you may need. The steps are written for tenants and roommates in shared housing situations, using clear language and practical examples so you can act confidently while protecting your tenancy and personal safety. If you are temporarily locked out or worried about illegal entry, follow the practical steps below and consider filing an application with the tribunal if the issue is not resolved informally. Keep records of messages, photos of the lock, and any witnesses; these records help when you file a complaint or ask for urgent measures.

What Quebec law and the tribunal say

In Quebec, residential tenancy disputes are handled by the Tribunal administratif du logement and governed primarily by the Civil Code of Quebec and related rules. If a roommate changes locks and denies access, the Tribunal can hear applications from tenants and order remedies including restoration of access or financial compensation[1][2].

Document everything as soon as possible because clear records improve your case.

Immediate steps if a roommate changes locks

  • If you are locked out, prioritise your safety and avoid forcing entry; call the police if you feel threatened.
  • Contact the landlord and the roommate in writing to request restoration of access and keep copies of messages or emails.
  • Document the situation with dated photos of the lock, screenshots of messages, and names of witnesses.
  • Ask the roommate to restore access or to agree to an alternative arrangement such as shared keys or a lock change with all tenants' consent.
  • If informal steps fail, prepare to file an application with the Tribunal administrative du logement to request orders restoring access or compensation.
Keep all communication about the lock change in writing so you have clear evidence if you need to apply to the tribunal.

Official forms you may need

The most relevant official form is the Tribunal's general application form to start a case. Use the Tribunal administratif du logement application when you seek an order about access, repairs, or compensation; for example, a tenant who cannot regain access after a roommate changes locks would file an application describing the facts and the remedy requested and attach evidence such as photos and messages.

The Tribunal also provides forms for urgent or interim measures when a quick order is needed to restore access or prevent harm; if you are locked out and need immediate access back, you can request provisional measures and explain the urgent risk (for example, no access to necessary medicines or safety threats).

Find official forms and filing instructions on the Tribunal website and follow their filing rules and timelines. Read the Tribunal's guidance before filing and consider the practical examples they provide.

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When to get legal or community help

If the landlord says they did not authorize a lock change, ask them to restore access or to change locks with keys for all tenants. If you cannot resolve the issue, seek advice from a tenant help centre or legal clinic before filing, especially if you need urgent measures. For more on tenant rights in Quebec see Tenant Rights and Landlord Rights in Quebec and for step‑by‑step complaint handling see How to Handle Complaints in Your Rental: A Tenant's Guide. If you need a new place quickly, Find rental homes across Canada on Houseme.

Respond to any tribunal or landlord deadlines promptly to avoid losing rights or procedural options.

FAQ

Can a roommate legally change the locks in Quebec?
Generally a roommate should not unilaterally change locks to deny another tenant access; if this happens contact the landlord and consider filing an application with the Tribunal administratif du logement for an order to restore access.
What should I do immediately if I am locked out by a roommate?
Prioritise safety, document the lock and communications, contact the landlord in writing, and consider the tribunal or police if there is a safety risk.
How long does it take to get a decision from the tribunal?
Timelines vary; urgent requests for interim measures can be heard quickly, but routine applications may take longer depending on caseload and required evidence.

How-To

  1. Document the incident with dated photos, messages, and witness names so you have clear evidence.
  2. Contact the landlord and roommate in writing asking for restoration of access and save copies.
  3. File an application with the Tribunal administratif du logement if informal steps fail and request any urgent measures you need.
  4. Attend any tribunal hearing with your evidence and a clear statement of the remedy you want.
  5. Follow the tribunal order carefully; if the order is not followed, return to the tribunal to ask for enforcement.

Help and Support / Resources


  1. [1] Tribunal administratif du logement - Official site
  2. [2] Civil Code of Que9bec - LegisQuebc

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Marie Dubois
Marie Dubois

Bilingual Housing Rights Advisor, Tenant Rights Canada

Marie covers tenant rights across Quebec and the Atlantic provinces in both English and French. With a background in Quebec civil law and residential tenancy, she is a trusted voice on the Tribunal administratif du logement process and francophone tenant rights.