Responsibility for Mold Remediation and Air Quality in Manitoba Rentals

Maintenance & Repairs Manitoba 5 min read · published September 14, 2026 Flag of Manitoba
Mold, dampness, and poor indoor air quality can affect a renter’s health, comfort, and use of a home. In Manitoba, landlords generally must keep rental units in a safe, habitable condition and address building problems that contribute to mold, while tenants must report problems promptly and use the unit reasonably. Responsibility may depend on the source of the moisture, the urgency of the danger, and whether a tenant’s actions caused or worsened the issue. This guide explains how Manitoba tenants can report mold, document air-quality concerns, request repairs, respond to unsafe conditions, and seek help through the Residential Tenancies Branch without assuming that every dark spot is automatically a legal violation.

Who is responsible for mold and air quality?

A landlord is usually responsible for repairing leaks, plumbing failures, roof or window defects, heating problems, ventilation defects, and other building conditions that cause dampness or unhealthy indoor conditions. The landlord must also arrange appropriate cleaning or remediation when the problem is connected to the rental property. A tenant is responsible for promptly reporting visible mold, persistent condensation, water damage, unusual odours, or symptoms they believe may be related to the unit.

Tenants should not be expected to diagnose the source of mold or perform major remediation themselves. Routine cleaning of small amounts of surface moisture may be reasonable, but extensive growth, contaminated materials, recurring dampness, or hidden mold calls for an assessment of the underlying cause and a suitable repair plan. Manitoba’s Residential Tenancies Act sets the legal framework for landlord and tenant duties.

The source of moisture usually matters more than the appearance of the mold when responsibility is assessed.

What tenants should do after finding mold

  • Take dated photos and videos of visible mold, water damage, peeling surfaces, condensation, and affected belongings.
  • Give the landlord a written notice describing where the problem is, when it began, and whether it is spreading or returning.
  • Ask for the moisture source to be investigated and for damaged materials to be repaired or removed safely.
  • Keep copies of messages, inspection reports, repair appointments, receipts, medical notes, and an ongoing symptom or odour log.
  • Contact the Manitoba Residential Tenancies Branch if the landlord does not respond appropriately or a dispute develops.
Keep communication factual, dated, and focused on the condition of the rental unit.

For broader information about unsafe conditions, see Health and Safety Issues Every Tenant Should Know When Renting. Information about ordinary maintenance duties is also available in Routine Repairs in Rental Units: Tenant and Landlord Responsibilities.

When is mold an urgent repair?

Report an urgent problem immediately when there is active flooding, sewage, a major leak, no heat during dangerous weather, electrical danger, structural damage, or a condition that makes the unit unsafe to occupy. Explain the urgency in writing and request immediate instructions. If there is an immediate threat to life or safety, leave the area and contact emergency services. Do not deliberately stop paying rent or abandon the unit without understanding the legal consequences, because a dispute about repairs does not automatically cancel rent obligations.

Landlords may need to arrange qualified contractors, moisture testing, ventilation repairs, containment, removal of damaged materials, or temporary accommodation where necessary. A tenant should cooperate with reasonable access appointments while asking for reasonable notice and details about the work.

Do not disturb extensive mold or contaminated materials if doing so could spread particles or create a health risk.
Ad

Access, inspections, and remediation work

A landlord generally needs to give the notice required by Manitoba law before entering for repairs or inspection, except where an emergency or other legal exception applies. Ask for the proposed date, time, reason for entry, contractor information, and expected duration. Keep pets and personal items safely away from the work area, and report any new damage after the contractor leaves.

If an inspection identifies a tenant-caused source, such as failing to report a significant leak or creating persistent excessive moisture, the tenant may face responsibility for resulting damage. That conclusion should be based on evidence rather than assumption. Ordinary cooking, bathing, and living activities do not by themselves prove that a tenant caused a building-wide moisture problem.

Air purifiers, testing, and health concerns

An air purifier may reduce some airborne particles, but it does not repair a leak or replace remediation. Tenants can ask what testing or professional assessment is proposed and request written results. If symptoms occur, seek medical advice and keep health information private unless it is relevant to a claim or accommodation request. Medical evidence can help explain an impact, but it does not by itself determine who caused the building problem.

For practical rental options while dealing with housing concerns, you can Explore rental homes in your area, but a tenant should not move out or end a tenancy solely because of mold without first considering notice rules and available remedies.

Notices, evidence, and possible remedies

Start with a clear written repair request. State the address, the affected areas, the dates, the suspected moisture source, and the action requested. Give the landlord a reasonable opportunity to respond unless the situation is urgent. If the response is inadequate, contact the Manitoba Residential Tenancies Branch for information about dispute resolution, inspections, hearings, and available applications.

  • Use the Residential Tenancies Branch repair or complaint process when a landlord does not address a reported maintenance or health concern.
  • Use the current Application for Hearing or other applicable claim form when you need a formal order, compensation, or another remedy.
  • Keep receipts for damaged property, cleaning, temporary accommodation, or other costs and explain how each cost relates to the condition.
  • Attend the hearing or inspection and bring organized evidence, witnesses, repair requests, and a timeline.

Form names and numbering can change, so download the current Manitoba Residential Tenancies Branch forms before filing. The official forms page explains how to complete and serve forms. For example, a tenant reporting recurring water damage can use the current repair or hearing application identified there, attach photos and messages, and request an order requiring repairs. A tenant seeking compensation should identify the amount claimed and support it with receipts.

Tenants and landlords can also review Obligations of Landlords and Tenants: Rights and Responsibilities Explained for general information about shared responsibilities.

FAQ

Is a Manitoba landlord always responsible for mold?
Not always. Responsibility usually depends on the cause of the moisture, whether the landlord was notified, the condition of the building, and whether a tenant caused or worsened the damage.
Can a tenant withhold rent because of mold?
A tenant should not withhold rent without specific legal authority or an order, because doing so can create a separate arrears or eviction dispute.
What evidence should a tenant collect?
Collect dated photos, written notices, replies, inspection reports, repair records, receipts, and a timeline describing when the problem appeared and how it changed.
Where can Manitoba renters make a complaint?
Tenants can contact the Manitoba Residential Tenancies Branch for information about repair disputes, inspections, applications, hearings, and available remedies.

How-To

  1. Photograph and document the mold, moisture, odours, damage, and dates before cleaning or moving affected items.
  2. Send the landlord a written repair request that identifies the problem, its location, and the action needed.
  3. Allow reasonable access for inspection and repairs while keeping copies of appointments and entry notices.
  4. Follow safe instructions during remediation and report promptly if moisture, mold, or air-quality concerns return.
  5. Contact the Residential Tenancies Branch and file the current applicable form if the issue remains unresolved.

Help and Support / Resources


  1. [1] Manitoba Residential Tenancies Branch
  2. [2] Manitoba Residential Tenancies Act
  3. [3] Manitoba Residential Tenancies Branch forms and applications
  4. [4] Manitoba environmental health information

Get connected with a tenant rights attorney

Tell us about your situation and a local attorney may reach out. Free, no obligation.

Please enter a valid email address.
Select a valid location from the list.

We are not a law firm and do not provide legal advice. We connect tenants with independent attorneys.

Categories

Tenant Rights & Responsibilities Rent & Deposits Leases & Agreements Moving In / Out Maintenance & Repairs Evictions Roommates & Shared Housing Discrimination & Accessibility Utilities & Services Affordable Housing & Subsidies Dispute Resolution & LTB Safety & Security Privacy & Entry by Landlord Special Tenancy Situations Tenant Insurance & Liability Post-Eviction Resources Landlord Compliance & Penalties Legal Precedents & Case Summaries Mental Health & Tenancy

Was this article helpful?

Thank you for your feedback!
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.