Living with mold or poor indoor air can be stressful for renters in Quebec. This guide explains tenant rights, how to document problems, and the practical steps to request repairs or file a case with the Tribunal administratif du logement[1]. You’ll learn when a condition may be the landlord’s responsibility under the Civil Code of Quebec, how to collect evidence safely, and how public health guidance on mould and indoor air informs reasonable expectations. The language here is plain and practical so tenants and renters can act confidently, keep records, and protect health while seeking repairs or compensation when needed. If you are unsure what to do first, follow the steps below and consider contacting local tenant resources for help.
What Quebec law says about mold and habitability
In Quebec, landlords must provide housing that is fit for habitation and free from latent defects that render a dwelling unsafe or unhealthy. These obligations are set out in the Civil Code of Quebec and are applied by the Tribunal administratif du logement[2][1]. If mould is linked to leaks, ventilation failures, or heating problems, it is often treated as a repair or habitability issue the landlord must address.
Immediate steps for tenants when you find mold or poor air quality
- Notify the landlord in writing describing the problem, date discovered, and where it is located.
- Take dated photos or short videos of the mould, water stains, and any related damage as evidence.
- Reduce immediate exposure: ventilate, avoid disturbed mould, and use a dehumidifier if safe to do so.
- Contact your health provider or public health for advice if you or household members have symptoms.
Documenting and communicating clearly helps if you later need to request repairs formally or apply to the Tribunal administratif du logement. For a general checklist about safety and inspections, see Health and Safety Issues Every Tenant Should Know When Renting.
When repairs are the landlord’s responsibility
Landlords are usually responsible for repairs that ensure the dwelling is in good condition. If mould results from structural leaks, building envelope failures, or systems the landlord controls, you can ask them to fix it. If the landlord does not act after a reasonable written request, tenants may apply to the Tribunal administratif du logement for an order to compel repairs or to obtain compensation[1]. The tribunal website also lists official application forms and procedural guidance for tenants.
Practical example: how to frame a written repair request
- State the problem clearly and the date you first noticed it (for example: "Mould on bedroom ceiling discovered 2026-02-10").
- Attach or reference photos and any health symptoms experienced due to the condition.
- Request a reasonable timeline for repair or inspection and offer dates when you are available for access.
For guidance on routine repair expectations, tenants can review Routine Repairs in Rental Units: Tenant and Landlord Responsibilities.
Official forms and when to use them
When informal requests do not resolve the problem, Quebec tenants can use tribunal application forms to start a case. Common official items include:
- Tenant application to the Tribunal administratif du logement — use to request repairs, rent reduction, or compensation when an informal request failed (see Tribunal forms page for the current application document).
- Supporting documents checklist — gather photos, copies of written requests, receipts for remediation or temporary accommodation, and a short timeline of events to attach to your application.
Health guidance and technical resources
Public health and scientific agencies provide practical advice on safe cleaning, when to leave mould removal to professionals, and how indoor air quality is assessed. Refer to provincial public health guidance for mould and indoor air quality to understand exposure risks and recommended remediation approaches[3].
If you’re considering a move because of unresolved hazards, you can also Explore Houseme for nationwide rental listings[4] to find alternatives while you pursue repairs or a tribunal application.
FAQ
- Can I withhold rent if my unit has mold?
- Withholding rent is risky and rarely advised; instead, notify the landlord in writing and consider applying to the Tribunal administratif du logement for an order if the landlord fails to repair.
- Who pays for professional mould remediation?
- If the mould is caused by landlord-controlled issues like leaks or ventilation failures, the landlord is typically responsible; document evidence and seek tribunal help if needed.
- What if I need urgent repairs and the landlord is unresponsive?
- Contact local public health for immediate health advice, keep written records, and consider filing an urgent application with the Tribunal administratif du logement.
How-To
- Contact your landlord immediately and send a written repair request with dates and photos.
- Document the issue: date-stamped photos, symptoms, and a short timeline of events.
- If the landlord does not act within a reasonable time, gather your documents and review the tribunal application process.
- Seek advice from public health or a tenant clinic if health symptoms are present.
- File the tenant application with the Tribunal administratif du logement and attach evidence and your written requests.
- Attend any hearing, bring originals of documents, and follow up promptly on tribunal directions.
Key Takeaways
- Act quickly: document mould and notify the landlord in writing.
- Keep dated photos and a clear timeline to support any tribunal application.
- Use official tribunal forms when informal repair requests fail.
Help and Support / Resources
- Tribunal administratif du logement (Quebec)
- Civil Code of Quebec (legisquebec)
- INSPQ guidance on mould and indoor air
