Tenant Rights Regarding Mold and Insanitary Conditions

Maintenance & Repairs Quebec 3 min read · published August 12, 2026 Flag of Quebec

Living with mould or other insanitary conditions can be stressful and unsafe for tenants in Quebec. This guide explains what renters should do when they discover mould, persistent leaks, pest infestations or ventilation failures that affect health or habitability. It covers how to document problems, what to include in written requests to your landlord, timelines for repairs, and when to contact the Tribunal administratif du logement and use legal forms to request action. Practical examples show how to preserve evidence, request professional remediation, and pursue a rent reduction or repair order if necessary. The information is written for everyday renters and aims to help you act confidently, protect your rights, and stay safe while resolving habitability issues.

Rights and habitability in Quebec

In Quebec the Civil Code of Québec[2] sets obligations for landlords to provide a habitable dwelling and for tenants to take reasonable care of the unit. The Tribunal administratif du logement[1] resolves landlord-tenant disputes, can order repairs, and may adjust rent when habitability is affected. The Tribunal also publishes official forms and guides for filing applications and requests on its website.Forms and publications[3]

When mould and insanitary conditions are a problem

Mould, persistent water leaks, poor ventilation or pest infestations can make a unit unsafe or unfit. Tenants should act quickly but calmly: document what you see, tell your landlord in writing, and request repairs. If the situation risks health, request an inspection or professional remediation and keep all evidence.

  • Document visible mould, leaks and any health symptoms with dated photos, videos and a short log of when you noticed each issue.
  • Serve a written notice to your landlord describing the problem, the location, the date you first noticed it, and a reasonable deadline for repairs.
  • Pay for emergency repairs only when absolutely necessary; keep all receipts and ask your landlord in writing about reimbursement or rent credit.
  • File an application with the Tribunal administratif du logement if the landlord does not make timely repairs or refuses reasonable remediation.
In most regions, tenants are entitled to basic habitability standards.

For health and safety background consider reading Health and Safety Issues Every Tenant Should Know When Renting which explains common hazards and prevention tips. If you need help making a complaint or managing communication with a landlord, see How to Handle Complaints in Your Rental: A Tenant's Guide for practical steps and templates.

If you need to look for alternative housing while remediation proceeds, Explore Houseme for nationwide rental listings to find available units across Canada.

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FAQ

Who can I contact if my landlord won’t fix mould or leaks?
You can file an application with the Tribunal administratif du logement to request repairs or a rent adjustment; keep written records and photos to support your case.
Can I withhold rent until repairs are done?
Do not withhold rent without following legal steps; instead document the issue, notify the landlord in writing, and apply to the Tribunal for a rent reduction or repair order if needed.
How should I document mould or unsanitary conditions?
Taken dated photos and videos, keep a written log of dates and symptoms, save communications with your landlord, and keep receipts for any expenses related to remediation.

How-To

  1. Gather dated photos, videos and a short log describing when and where you saw mould or leaks.
  2. Send a clear written notice to your landlord with photos, the problem description, and a reasonable deadline for repairs.
  3. Allow access for inspection or repairs when arranged and keep records of appointments and workers who enter the unit.
  4. If the landlord does not act, request a hearing at the Tribunal administratif du logement to seek an order for repairs or a rent reduction.

Key Takeaways

  • Document everything with dated photos, videos and a short written log.
  • Respond in writing and keep to reasonable deadlines when requesting repairs.
  • Use the Tribunal administratif du logement if informal requests do not resolve the issue.

Help and Support / Resources


  1. [1] Tribunal administratif du logement
  2. [2] Civil Code of Québec
  3. [3] Tribunal forms and publications

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David Chen
David Chen

Tenant Law Analyst, Tenant Rights Canada

David specializes in Ontario residential tenancy law and Northern territories housing regulations. He has followed developments at the Landlord and Tenant Board closely for over eight years and writes extensively on LTB procedures, rent increases, and maintenance obligations.