Changing Locks and Privacy with Roommates in New Brunswick

Roommates & Shared Housing New Brunswick 4 min read · published March 09, 2026 Flag of New Brunswick

Living with roommates raises questions about privacy and whether you can change a lock. This guide helps tenants and renters in New Brunswick understand when changing locks is reasonable, how to consult roommates and the landlord, and what formal steps to take if someone refuses to cooperate. It explains practical safety steps, how to document incidents, and which official application or tribunal route to use when disputes cannot be resolved informally. The advice below uses plain language so you can protect your safety and privacy while following New Brunswick tenancy rules.

Understanding your rights and the law in New Brunswick

In New Brunswick, tenancy rules cover entry, locks and privacy. Check your written lease first: many agreements say tenants cannot change locks without landlord permission. If you need clarity, the provinces Residential Tenancies Tribunal handles disputes about locks and access; make a formal application if needed[1].

The Residential Tenancies Tribunal resolves disputes about entry, locks and tenant-landlord obligations.

When you can consider changing the locks

  • If you fear for your personal safety because a roommate has been violent or threatening, changing locks immediately can be reasonable and you should also contact police and support services.
  • If a former roommate refuses to return keys after moving out and you cannot secure the unit, replacing the lock may be necessary to preserve safety.
  • If your lease explicitly prohibits changing locks, or if the landlord asks for copies of keys, follow the notice and application process before altering locks to avoid breaching the agreement.
If there is immediate danger, call emergency services first, then document the situation in writing.

Talk first: roommates and the landlord

Whenever possible, discuss concerns with your roommates and try to reach a clear agreement about keys and access. If talking does not work, notify the landlord in writing and keep records of texts, emails or dated notes. If the landlord or roommates are not following legal obligations, review obligations and responsibilities to know next steps and possible remedies. For more about landlord and tenant duties, see Obligations of Landlords and Tenants: Rights and Responsibilities Explained.

Clear written communication reduces misunderstandings and creates useful evidence if you need to apply to the tribunal.
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Official forms, what they are and how to use them

When informal steps fail, New Brunswick tenants can apply to the Residential Tenancies Tribunal. Common documents include:

  • Application to the Residential Tenancies Tribunal (Form RTT-1) Use this to start a dispute about unlawful entry, locks or failure to return keys. Example: you replaced a lock after a safety incident and the landlord claims you breached the lease; file this application to ask the tribunal to decide who is right[2].
  • Notice or Complaint forms Used to document problems like illegal entry or harassment before filing an application; always keep dated copies and evidence such as photos or messages when you submit a claim to the tribunal[2].
  • Contacting the Residential Tenancies Tribunal If you are unsure which form to use, contact the tribunal office for guidance and to confirm current form numbers and submission rules[1].
Keep a dated file with copies of lease clauses, key handovers, messages and any police reports.

FAQ

Can I change the locks without asking the landlord?
That depends. If you face immediate danger, you can secure your safety first, then notify the landlord and document why you changed the locks. If the lease forbids lock changes, follow the dispute process before making non-emergency changes.
Do I have to give my roommate a copy of a new key?
Not necessarily. If you share joint tenancy, the lease or local rules may require a key be available to all occupants or to the landlord. If unsure, discuss and check your lease and, if needed, ask the tribunal to clarify.
What evidence helps my case with the tribunal?
Collect dated photos, messages, witness statements, police reports and copies of the lease. A clear timeline of events strengthens your application.

How-To

  1. Check your lease and tenancy rules, and look for clauses about locks, keys and access.
  2. Talk to your roommates and landlord in writing to request a solution and keep copies of all messages.
  3. If there is a safety concern, secure the unit first, then document the reason for changing locks and notify the landlord immediately.
  4. If the dispute continues, complete the appropriate tribunal application and attach your evidence before filing[2].
  5. Attend any tribunal hearing prepared with copies of your evidence and a clear timeline; the tribunal will decide on remedies like orders to return keys or compensation.

Key Takeaways

  • Prioritize safety: in emergencies lock up first and then document and report the incident.
  • Always check your lease and try written communication before making changes that could breach the agreement.
  • Collect evidence: photos, messages and witnesses increase your chance of success at the tribunal.

Help and Support / Resources

For rental search help while you look for safer housing options, see Find rental homes across Canada on Houseme.


  1. [1] Residential Tenancies Tribunal - New Brunswick
  2. [2] Residential Tenancies Act (New Brunswick)
  3. [3] Tribunal application and complaint forms - New Brunswick

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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.