Smoke & Carbon Monoxide Detector Rules in New Brunswick

Utilities & Services New Brunswick 4 min read · published March 09, 2026 Flag of New Brunswick

Renters in New Brunswick need clear, practical information about smoke and carbon monoxide detectors so they can stay safe and know their rights. This guide explains who must install and maintain alarms, what kinds of detectors are commonly required, and the steps tenants can take if alarms are missing or not working. It also points to official resources, required forms, and how to bring a problem to the Residential Tenancies Tribunal or other provincial authorities. Use this page to learn testing tips, your responsibilities, how to document issues, and where to find official help as a tenant in New Brunswick.

What detectors are required in New Brunswick?

Provincial rules require functioning smoke alarms in residential rental units and many buildings must also have carbon monoxide (CO) alarms where fuel-burning appliances or attached garages are present. Exact technical standards and placement rules are set by provincial fire and building regulations and the Residential Tenancies Act.[1] If you move into a unit, check every level for a working smoke alarm and any rooms that could need CO protection.

Smoke alarms and CO detectors are inexpensive tools that greatly reduce the risk of fatal incidents when properly maintained.

Who is responsible for installation and maintenance?

Generally, the landlord is responsible for installing detectors and ensuring units meet minimum safety standards before tenants move in. Tenants are normally expected to test alarms regularly and report faults promptly in writing. If your lease or local rule shifts responsibility, keep a written record of any agreement or communication with your landlord.[2]

Always test alarms when you move in and keep a dated log of checks.

Testing, maintenance and replacement

Simple habits help keep alarms working:

  • Test alarms at least once a month and after a power outage.
  • Change batteries as recommended by the manufacturer or when the alarm chirps.
  • Report any non-working alarm to your landlord in writing and request repair or replacement.
Keeping dated photos or short video proof of a faulty alarm can help if there is a dispute.

What to do if a landlord won’t fix or replace an alarm

If the landlord does not act after you report the problem, follow these steps: provide a written notice describing the issue and the repair requested, keep copies, and allow reasonable access for repairs. If there is no response, you can apply to the Residential Tenancies Tribunal or the appropriate provincial authority for resolution.[2] In emergencies where a detector is missing and an immediate hazard exists, call local emergency services and the fire department.

If you smell gas or suspect a carbon monoxide leak, evacuate immediately and call emergency services.
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Required forms and official paperwork

Key official forms tenants may need in New Brunswick include the application form to bring a complaint to the Residential Tenancies Tribunal, and any provincial inspection or fire safety complaint forms. Use the Tribunal application when a landlord fails to meet legal safety obligations; the Tribunal form explains how to state the issue and what outcome you seek. For fire or public-safety concerns, use the Fire Marshal or local municipality complaint forms so inspectors can assess code compliance.[2][3]

Filing a clear, dated written notice with photos and a record of delivery makes formal complaints stronger.

FAQ

Who must install smoke and CO alarms in rental units?
Landlords are generally required to install required smoke and CO alarms before tenancy begins, while tenants should test and report problems. [1]
What if an alarm only chirps intermittently?
A chirping alarm usually means low battery or an end-of-life detector; report it in writing immediately and ask for replacement or battery change. Keep a dated record. [2]
Can a landlord charge for replacing a detector?
Charging tenants for repairs that were the landlord's responsibility may be improper; check your lease and provincial rules and consider applying to the Tribunal if you disagree. [2]

How-To

  1. Inspect and test all smoke and CO alarms when you move in and keep a dated record of tests.
  2. Serve a written notice to your landlord describing the problem, what you want fixed, and your contact details.
  3. If the landlord does not respond, complete and submit the Residential Tenancies Tribunal application form with your evidence and a clear request for remedy.[2]
  4. For urgent safety hazards, call local emergency services and file a complaint with the provincial fire authority or municipality.

Key Takeaways

  • Landlords must ensure basic safety devices are installed and working before a tenancy begins.
  • Tenants should test alarms monthly and keep records of all checks and communications.
  • If repairs are not made, apply to the Residential Tenancies Tribunal and include clear evidence.

Help and Support / Resources


  1. [1] Consolidated Acts of New Brunswick: Residential Tenancies Act and related safety regulations
  2. [2] Residential Tenancies information, Government of New Brunswick
  3. [3] New Brunswick Department of Public Safety

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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.