Ontario Landlord Maintenance: Obligations & Standards

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Complete guide to Ontario landlord maintenance obligations including habitability standards, heating requirements, pest control, tenant remedies, and O. Reg....

Melvin Prince
6 min read
Verified May 2026Canada flag
MaintenanceOntarioHabitabilityRepair-obligationsMaintenance-standards

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This content is for general informational and educational purposes only. It does not constitute legal advice and should not be relied upon as such. Laws change frequently — always verify current regulations and consult a licensed attorney in your jurisdiction for advice specific to your situation. Landager is a property management platform, not a law firm.Information last verified: May 2026.

Ontario landlords have a broad legal obligation to maintain rental properties in a good state of repair, fit for habitation, and compliant with all health, safety, housing, and maintenance standards. These obligations are set out in the Residential Tenancies Act, 2006 (RTA), which came into effect on 31 January 2007, and detailed in Ontario Regulation 517/06 (Maintenance Standards).

Landlord's Core Maintenance Obligation

Under RTA §20, the landlord is responsible for:

  • Providing and maintaining the rental unit in a good state of repair
  • Ensuring the unit is fit for habitation
  • Complying with health, safety, housing, and maintenance standards
  • Maintaining the residential complex (common areas, grounds, parking) in a good state of repair

This obligation applies regardless of whether the tenant was aware of a state of disrepair before moving in.

Specific Maintenance Standards (O. Reg. 517/06)

Ontario Regulation 517/06 sets detailed requirements for residential rental properties:

Heating

RequirementStandard
Minimum temperature (habitable spaces)20°C (68°F)
Heating seasonSeptember 1 to June 15
Landlord responsibilityMust provide and maintain adequate heating

Plumbing and Water

  • Hot and cold running water in the kitchen and bathroom
  • Hot water temperature adequate for normal household use
  • All plumbing fixtures in good working order
  • No leaks or drainage problems

Electrical Systems

  • Adequate electrical power for normal use
  • All outlets, switches, and fixtures in safe working order
  • Proper lighting in common areas (hallways, stairwells, parking areas)

Structural Integrity

  • Walls, ceilings, and floors in good condition (no holes, cracks, or water damage)
  • Roofs and exterior walls weather-tight
  • Windows and doors in good repair with functioning locks
  • Stairways, railings, and balconies structurally sound

Appliances

  • All appliances provided by the landlord must be maintained in good working order
  • This includes stoves, refrigerators, dishwashers, washers, dryers, and any other appliances included with the unit

Pest Control

  • Landlords must eliminate infestations of insects (cockroaches, bed bugs) and rodents
  • Regular pest control measures must be taken
  • The landlord is responsible even if the tenant's actions contributed to the infestation (though the landlord may seek compensation from the tenant)

Safety

  • Smoke detectors on every storey and outside sleeping areas
  • Carbon monoxide detectors where required by the Ontario Fire Code
  • Fire exits clear and accessible
  • Proper ventilation in all habitable spaces

Tenant Remedies for Maintenance Issues

If a landlord fails to maintain the property, tenants have several options:

1. File a T6 Application with the LTB

  • Tenants can apply to the LTB for an order requiring the landlord to do repairs
  • The LTB may order repairs to be completed within a specific timeline
  • The LTB may also order a rent reduction for the period the unit was in disrepair

2. Contact Municipal Property Standards

  • Tenants can file a complaint with their municipal property standards or bylaw enforcement office
  • An inspector will investigate and may issue work orders to the landlord
  • Non-compliance with work orders can result in fines

3. Contact Public Health

  • For health-related maintenance issues (mold, pests, sewage, lack of heat)
  • The local public health unit can investigate and issue orders

Tenant Obligations

Tenants also have maintenance responsibilities:

  • Keep the unit reasonably clean
  • Repair or pay for damage caused by the tenant, their guests, or pets (beyond normal wear and tear)
  • Not willfully or negligently cause damage
  • Promptly notify the landlord of maintenance issues

What is "Normal Wear and Tear"?

Landlords cannot charge tenants for normal wear and tear. Examples:

Normal Wear and TearTenant-Caused Damage
Faded paintHoles in walls
Minor scuff marksBroken windows
Worn carpet from foot trafficStained or burned carpet
Aging appliance performanceBroken appliance from misuse
Loose door handles over timeKicked-in doors

Emergency Repairs

For emergency repairs (burst pipes, no heat in winter, electrical hazards), landlords should:

  1. Respond immediately to the tenant's report
  2. Arrange emergency repair services
  3. If the unit is temporarily uninhabitable, assist with alternative accommodation
  4. The LTB may authorize a tenant to arrange emergency repairs and deduct costs if the landlord is unresponsive

Best Practices for Ontario Landlords

  1. Schedule regular inspections — With proper 24-hour written notice of entry (as required by RTA s. 27)
  2. Respond promptly to repair requests — Document all requests and responses
  3. Hire licensed contractors — For electrical, plumbing, and structural work
  4. Maintain heating systems — Annual furnace maintenance before heating season
  5. Keep pest control records — Regular treatment schedules and inspection records
  6. Budget for maintenance — Set aside funds for preventive and reactive maintenance

Back to Ontario Landlord-Tenant Laws Overview.

How Landager Helps

Operating in Ontario's highly regulated rental market requires strict adherence to procedural timelines and the use of government-mandated forms. With the Landlord and Tenant Board (LTB) maintaining rigorous standards for evidence and notice accuracy, even small administrative errors can lead to months of delays. Landager simplifies Ontario property management by automating the generation of the mandatory Ontario Standard Lease, tracking the 90-day window for Form N1 rent increases, and maintaining detailed digital logs of maintenance requests to protect against rent abatement claims. Whether you are managing rent-controlled units in Toronto or multi-tenant commercial spaces in Ottawa, Landager provides the structural framework and record-keeping tools necessary to navigate the RTA with confidence and mitigate the risks of costly legal disputes.

Frequently Asked Questions

What are landlord maintenance obligations in Ontario?

Landlords in Ontario are required to maintain rental properties in a habitable condition, ensuring the structure, plumbing, electrical systems, and essential services are in proper working order. Regional laws in Ontario may impose additional requirements beyond the national standard.

What are the key landlord-tenant laws in Ontario?

Ontario's rental market is governed by the Residential Tenancies Act, 2006 (RTA). 2026 brings new procedural efficiencies through the full implementation of provincial and federal tenant protection initiatives. This guide covers the essential compliance requirements for property owners and landlords.

Read the complete guide

What is the eviction process for landlords in Ontario?

The eviction process in Ontario requires landlords to follow formal legal procedures established by both regional and national law. Valid grounds typically include non-payment of rent, lease violations, or the landlord's personal use of the property. Landlords must provide proper written notice, allow any required cure periods, and may need to obtain a court or tribunal order.

Read the complete guide

What are the rent increase rules in Ontario?

Ontario has specific rules governing when and how landlords can increase rent, which may include caps on the percentage of increase, minimum notice periods, and restrictions on frequency. These rules may differ from national standards, so landlords must check regional regulations.

Read the complete guide

What are the security deposit rules in Ontario?

Security deposit rules in Ontario govern how much landlords can charge, how deposits must be held or protected, and the timeline for returning deposits after a tenancy ends. Landlords must provide itemized statements of any deductions and comply with all regional and national statutory deadlines.

Read the complete guide

What are the mandatory lease requirements in Ontario?

Lease agreements for rental properties in Ontario must comply with both regional and Canada national law. Required elements typically include the names of both parties, property description, rent amount and payment terms, deposit details, lease duration, and maintenance responsibility allocation.

Read the complete guide

What are the late fee rules in Ontario?

Ontario has specific rules regarding late fees and penalties for overdue rent. These may include mandatory grace periods, caps on fee amounts, and restrictions on interest charges. Check both regional and Canada national regulations for the applicable rules.

Read the complete guide

What disclosures must landlords provide in Ontario?

Landlords in Ontario must disclose relevant property information to prospective tenants before the lease is signed. Required disclosures may include known defects, environmental hazards, previous damage, and any conditions affecting the tenant's use of the property, in compliance with both regional and national law.

Read the complete guide
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Major cities governed by Ontario jurisdiction

TorontoOttawaHamiltonMississaugaBramptonKitchenerLondonMarkhamOshawaVaughanWindsorSt. CatharinesOakvilleRichmond HillBurlingtonSudburyBarrieGuelphWhitbyCambridgeKanataMiltonKingstonAjaxWaterlooThunder BayBrantfordChathamClaringtonPickeringTorontoOttawaHamiltonMississaugaBramptonKitchenerLondonMarkhamOshawaVaughanWindsorSt. CatharinesOakvilleRichmond HillBurlingtonSudburyBarrieGuelphWhitbyCambridgeKanataMiltonKingstonAjaxWaterlooThunder BayBrantfordChathamClaringtonPickeringTorontoOttawaHamiltonMississaugaBramptonKitchenerLondonMarkhamOshawaVaughanWindsorSt. CatharinesOakvilleRichmond HillBurlingtonSudburyBarrieGuelphWhitbyCambridgeKanataMiltonKingstonAjaxWaterlooThunder BayBrantfordChathamClaringtonPickeringTorontoOttawaHamiltonMississaugaBramptonKitchenerLondonMarkhamOshawaVaughanWindsorSt. CatharinesOakvilleRichmond HillBurlingtonSudburyBarrieGuelphWhitbyCambridgeKanataMiltonKingstonAjaxWaterlooThunder BayBrantfordChathamClaringtonPickering

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