TenantsRepairs and maintenance

What are tenants' rights regarding mold?

Last updated: October 15, 2026

Short answer

A landlord must keep a rental fit to live in and meet health, safety and housing standards, and in most provinces covered here that duty is what a tenant relies on for mold. The Acts we reviewed do not set a mold-specific deadline or process. The usual steps are a written request to the landlord, then a report to public health or the municipality if it is a health hazard, then an application to the province's tenancy tribunal for repairs, a rent reduction or compensation. Ontario and a few other provinces add rules on dampness or mold-free walls.

Mold rules and who to complain to, by province

Most tenancy Acts do not mention mold by name. They require a landlord to keep the unit in good repair and fit for habitation, and some housing standards address dampness directly. This table shows what we found and where tenants can take a complaint.

ProvinceWhat the rules say about mold or dampnessWhere to complain
AlbertaMold is not named. Basements must be free from water infiltration and rotted or damaged materials repaired or replaced.Alberta Health Services Environmental Public Health; RTDRS or Alberta Court of Justice
British ColumbiaThe tenant handles minor mold on windowsills, tubs and showers; report water damage immediately.Residential Tenancy Branch dispute resolution
ManitobaWe found no mold-specific rule.Local Environmental Health Office; Residential Tenancies Branch
SaskatchewanMold is not named in the Act. The health authority lists extensive mould among issues inspectors handle.Public Health Inspectors; Office of Residential Tenancies
OntarioWalls and ceilings must be kept free of mould, mildew and fungi (O. Reg. 517/06 s.39).Landlord and Tenant Board (T6); municipal property standards
New BrunswickMold is not named. Where the maintenance code is adopted, basements must keep out moisture and ventilation is required.Residential tenancies officer
Nova ScotiaWe found no mold-specific rule. Halifax's by-law requires dampness damage to be prevented.Residential Tenancies Director; provincial Environmental Health
Prince Edward IslandBuildings must be free from dampness to the satisfaction of a public health official.Director of Residential Tenancy
Newfoundland and LabradorWhere the occupancy regulations apply, spaces must be kept free from dampness, moisture and condensation to prevent rot and mildew.Residential Tenancies Office; municipality or health department

What to do if there is mold (SQRFT advice)

  1. Tell the landlord in writing. Describe where the mold is, since when, and any leak or water source. Keep a copy and note the date.
  2. Document it. Take dated photos and keep records of any health symptoms and any doctor's visits.
  3. Give a reasonable time to respond. The Acts we reviewed set no mold-specific deadline, though some give general repair timelines noted below.
  4. Report a health hazard to public health or the municipality if the landlord does nothing.
  5. Apply to the tenancy tribunal for a repair order, a rent reduction or compensation, and keep paying rent while you wait.

If the mold makes the unit unfit to live in, see can I break my lease if my apartment has mold and how to break a lease due to uninhabitable conditions.

Can you sue a landlord for mold exposure?

A tenant can ask the tenancy tribunal for compensation or a rent reduction when a landlord fails to deal with mold, and in several provinces for an order that the landlord do the repair. How a tribunal treats a claim for illness caused by mold is a different question. Manitoba's Residential Tenancies Branch, for example, cannot award for personal injury or pain and suffering, and we found no rule on this for the other provinces. If you have a health claim, ask your tenancy office or a legal clinic where it should go. For the general picture, see when a tenant can sue a landlord.

Mold and tenants' rights in each province

Alberta

Alberta's Residential Tenancies Act does not name mold. The landlord covenant is to meet the minimum housing and health standards, which include basements free from water infiltration and rotted or damaged materials repaired or replaced. Tenants must also keep the premises reasonably clean (s.21(f)) and not cause significant damage (s.21(e)).

Ask the landlord in writing and contact Alberta Health Services Environmental Public Health; the inspector does not reveal who complained. A tenant can apply to the RTDRS or the Alberta Court of Justice for damages, a rent reduction, compensation or termination. The 14-day tenant notice for a landlord's substantial breach applies only after a public health order was issued about the breach. The RTDRS cannot order a landlord to do a repair.

Alberta repairs and maintenance guide | Alberta tenant rights

British Columbia

A BC landlord must maintain the rental to health, safety and housing standards and keep it suitable for occupation (s.32(1)). Tenants handle minor mold on windowsills, tubs and showers, and should report water damage immediately. Landlords should fix water damage quickly to avoid more serious issues like mold growth.

Request repairs in writing, then apply for dispute resolution for a repair order, a rent reduction or compensation. Urgent safety repairs can go through the expedited hearing process. A tenant can end the tenancy by giving written notice of a breach of a material term and allowing reasonable time to fix it (s.45(3)).

BC tenant repairs guide | BC tenant rights

Manitoba

We found no mold-specific rule in Manitoba. The Act requires a landlord to keep the unit fit for habitation and compliant with standards (s.59(1)). Ask the landlord in writing, then send a Tenant's Request for Repairs to the Residential Tenancies Branch, which can order repairs and redirect rent to pay a contractor, and can award compensation for unreasonable delay.

A tenant can give 5 days' notice if the breach poses a health or safety risk (s.89(3)), and immediate notice if the unit is uninhabitable (s.89(4)). The Branch usually will not proceed while rent is owing unless there is an immediate health or safety risk. For health complaints, contact your local Environmental Health Office.

Manitoba repairs and maintenance guide | Manitoba tenant rights

Saskatchewan

Saskatchewan's Act does not name mold. The landlord must keep the rental in good repair and fit for habitation (s.49(1)), and the tenant must keep reasonable health and cleanliness standards (s.49(5)). The Saskatchewan Health Authority lists extensive mould among the rental housing issues Public Health Inspectors can investigate on a complaint; it says they do not assist with non-health concerns such as cosmetic updating.

A tenant can apply to the Office of Residential Tenancies, which can order the landlord to comply, order rent paid to the director to fund a repair, award damages or reduce rent. A tenant who makes a good-faith health or safety complaint has relief against retaliation (s.70(11)(a)). Notice to end the tenancy comes after a reasonable time to fix the breach (Form 6a).

Saskatchewan repairs and maintenance guide | Saskatchewan tenant rights

Ontario

Ontario's property standards regulation requires walls and ceilings to be kept free of mould, mildew and fungi (O. Reg. 517/06 s.39). The landlord must keep the complex in good repair and fit for habitation (RTA s.20), and the tenant must keep their unit ordinarily clean (s.33). Municipal property standards by-laws also apply.

Ask in writing first, then apply on a T6 within one year of the conduct. The Board can order repairs by a deadline, reduce rent, or authorize a repair you already made and order its cost paid, among other orders. Keep paying rent; the Board can allow rent to be paid to it. We found no tenant notice right to end an Ontario tenancy early for health or safety.

Ontario tenant repairs guide | Ontario tenant rights

New Brunswick

New Brunswick's Act does not name mold. The landlord must keep the unit fit for habitation and meet health, safety and housing standards (s.3). Where a municipality has adopted the model maintenance code, basements and foundation walls must keep out moisture (s.10(1)) and ventilation is required (s.30(1)); which municipalities adopt it varies, so ask yours.

Make a written complaint; the landlord has 7 days (Reg s.6). Then notify a residential tenancies officer in writing with a copy. The officer may investigate and order compliance, have the work done at the landlord's cost, and on the tenant's application end the tenancy. The officer may also order up to one month's rent in expenses and refund up to one month's rent paid while the unit was uninhabitable.

New Brunswick repairs and maintenance guide | New Brunswick tenant rights

Nova Scotia

We found no mold-specific rule in Nova Scotia's Act. The landlord keeps the premises in good repair and fit for habitation, and the tenant keeps the interior ordinarily clean. Halifax's By-law M-200 requires dampness damage to be prevented; other municipalities were not checked. Provincial Environmental Health investigates reported public health hazards, including housing.

A tenant applies to the Director on Form J, which can lead to repairs plus expenses, compensation or rent paid in trust. An emergency hearing request (Form DR9) can be filed after Form J. Rent cannot be withheld. We found no right to end a tenancy by notice just because of mold.

Nova Scotia repairs and maintenance guide | Nova Scotia tenant rights

Prince Edward Island

PEI does not name mold in the Act. The Public Health Act Rental Accommodation Regulations require buildings to be free from dampness to the satisfaction of a public health official, and the dwelling to be sound, weatherproof, damp-proof, vermin-proof, safe and sanitary. A breach of those standards may constitute a health hazard.

A tenant applies to the Director on Form 2(A) for compliance, a rent reduction, compensation or termination. The Act gives no notice right to leave early because of poor conditions. The tenant must notify the landlord and give reasonable time; for emergency repairs such as leaks, the landlord reimburses within seven days of a written claim with receipts, or the tenant applies to the Director.

PEI repairs and maintenance guide | PEI tenant rights

Newfoundland and Labrador

The Residential Tenancies Act, 2018 does not name mold. The landlord keeps the premises in good repair and fit for habitation and must comply with health, safety and housing law. The Occupancy and Maintenance Regulations, which apply only to the municipalities listed in their Schedule, require spaces to be kept free from dampness, moisture and condensation to prevent rot and mildew. St. John's is not on that list. A tenant can also report to the municipality for a building inspector, or to the department of health.

Send a written Tenant's Request for Repairs, then file an Application for Dispute Resolution with the Residential Tenancies Office, attaching the request. Rent must not be in arrears. The Office can order repairs, a rent reduction, rent paid into trust and compensation. A tenant can also give written notice effective immediately where the landlord contravenes the repair condition (s.21(1)).

Newfoundland repairs and maintenance guide | Newfoundland tenant rights

Related questions

What to do if a tenant complains of mold?

If you are a landlord, treat it as a repair request. Look into the cause, which is often a leak, poor ventilation or condensation, respond in writing and keep a record of every step. The duty to keep the unit fit to live in is the landlord's, and a tenant who complains is using a legal right. Alberta, for example, bars eviction of a tenant for using rights under the Residential Tenancies Act or the Public Health Act.

What if my landlord refuses to clean mold?

Put the request in writing and keep a copy. If nothing happens, report a health hazard to public health or the municipality and apply to your province's tenancy tribunal for a repair order, rent reduction or compensation. See what to do if a landlord refuses repairs. Do not stop paying rent on your own; see can I withhold rent from my landlord.

Can I sue my landlord for mold exposure?

You can ask the tenancy tribunal for compensation or a rent reduction, and the limits differ by province, such as $100,000 at Alberta's RTDRS and $35,000 at the BC Residential Tenancy Branch. Manitoba's Branch cannot award for personal injury or pain and suffering, and we found no rule on illness claims in the other provinces. For a health claim, ask your tenancy office or a legal clinic. See when a tenant can sue a landlord.

How long does a landlord have to deal with mold?

The Acts we reviewed set no mold-specific deadline. General timelines exist elsewhere: in New Brunswick the landlord has 7 days after a written complaint before you go to the officer, and Manitoba allows 5 days' notice where a breach poses a health or safety risk. Saskatchewan and BC refer to a reasonable time. Ask your tenancy office what applies to your case.

Where do I report a landlord for mold?

Start with public health or the municipality, then the tenancy tribunal. Alberta Health Services Environmental Public Health, Manitoba's local Environmental Health Office, Saskatchewan Public Health Inspectors and Nova Scotia's provincial Environmental Health are examples. In Ontario, municipal property standards by-laws apply. See how to report a landlord.

Who do I report black mold to?

The province's rules do not treat black mold differently from other mold in the Acts we reviewed. Report it to the same places: your landlord in writing, then public health or the municipality, and the tenancy tribunal if it is not fixed.

Do landlords have to deal with mold?

Yes, in the sense that every province covered here makes the landlord responsible for keeping the rental in repair and meeting health, safety and housing standards. A tenant is responsible for ordinary cleanliness, and in BC for minor mold on windowsills, tubs and showers. The cause matters: a leak or building defect falls under the landlord's repair duty.

What are tenant rights regarding repairs?

A tenant can ask for repairs in writing and, if they are not done, apply to the tenancy tribunal for an order, a rent reduction or compensation. BC and PEI also allow emergency repairs with reimbursement. See what to do if a landlord refuses repairs and what are my rights as a tenant.

What are tenant rights regarding maintenance and utilities?

A landlord generally cannot withhold or cut vital services such as heat, water and electricity. BC (s.27), Ontario (s.21), Manitoba (s.60(1)), PEI (s.21), New Brunswick (s.3.1) and Newfoundland and Labrador (Statutory Condition 8) say so, with exceptions for emergencies and repairs in New Brunswick. See what your landlord cannot do.

Do landlords have to repair or replace appliances?

Appliances have their own rules, separate from mold and general repairs. See do landlords have to replace appliances for the details.

Do tenants have to clean mould?

Sometimes, for small surface mould. Tenants in every province covered here must keep their unit reasonably clean, and British Columbia's guidance says the tenant handles minor mould on windowsills, tubs and showers. For the other provinces the Acts we reviewed do not name mould cleaning as a tenant duty. SQRFT's reading, not a province-specific rule: mould tied to a leak or water damage is more likely a repair problem for the landlord, who must keep the unit in good repair and fit to live in. In Ontario, the maintenance standards require walls and ceilings to be kept free of mould, mildew and fungi.

SQRFT advice, not law: wipe small patches that come from everyday moisture, and tell the landlord in writing, with dated photos, if the mould keeps coming back or covers a large area, because that points to a moisture problem the landlord may have to fix.

Government sources

General information, not legal advice. Rules change; check your province's tenancy office before acting.

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