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Find a Lawyer » Canada Legal Guides » Ontario Legal Guides » Landlord & Tenant Rights Ontario » Evictions & Rent Disputes Ontario » How to Fight a Constructive Eviction (Making the Unit Unlivable) in Ontario

How to Fight a Constructive Eviction (Making the Unit Unlivable) in Ontario

13 Jun 2026 5 min read No comments Evictions & Rent Disputes Ontario
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If an Ontario landlord deliberately ignores crucial repairs-such as leaving you with a broken furnace in winter or severe mold-to force you out, this is an illegal “constructive eviction.” You must not withhold your rent. Instead, immediately file T6 and T2 applications with the LTB to demand emergency repairs and a massive rent abatement.

When a landlord desperately wants a long-term tenant to leave so they can significantly raise the rent, they may resort to incredibly hostile tactics. If they know they cannot legally evict you with standard notices, they might decide to make your daily life so utterly miserable that you pack up and leave voluntarily. This underhanded strategy is known in law as a “constructive eviction.” It happens when a landlord intentionally ignores major maintenance requests, allows severe pest infestations to thrive, or refuses to fix a broken furnace during freezing Canadian winters.

Living in a freezing, moldy, or unsafe apartment takes a massive toll on your physical and mental health. Whether you are renting in a massive high-rise in Toronto or an older house in Sudbury or Kingston, you have powerful legal rights under the Residential Tenancies Act (RTA). The law requires all landlords to maintain the property in a good state of repair, regardless of how cheap your rent is. This guide will show you exactly how to hold a negligent landlord accountable and force them to fix the unit without losing your tenancy.

Step-by-Step Process in Ontario

When facing a constructive eviction, your biggest weapon is an overwhelming paper trail. The Landlord and Tenant Board (LTB) deals in facts and evidence, not just verbal complaints. Here is how you build an airtight legal case.

Step 1: Document the Unlivable Conditions

You must become a meticulous record-keeper. If the furnace is broken, buy a digital thermometer and take a photograph of the temperature inside your bedroom every single morning. 📸 Take clear, dated videos of dripping pipes, black mold, or cockroaches. You must also prove you told the landlord about the problem. Send all maintenance requests in writing via email or text message so you have a timestamped record of them ignoring you.

Step 2: Call Municipal Property Standards (By-law)

Do not wait months for the landlord to act. If the unit lacks heat, water, or has severe structural issues, immediately call your local city hall and request a Property Standards or By-law enforcement officer. The city inspector will visit your unit, document the severe violations, and issue a legally binding “Work Order” forcing the landlord to fix the issues within a specific timeframe. The LTB considers a city Work Order as absolute proof of the landlord’s negligence.

Step 3: Never Withhold Your Rent

The absolute most common-and devastating-mistake tenants make in Ontario is stopping their rent payments because the unit is broken. Under the RTA, you do not have the right to withhold rent. If you stop paying, the landlord will simply serve you an N4 notice and legally evict you for non-payment. You must keep paying your rent perfectly, and seek your financial compensation retroactively through the LTB.

Step 4: File T6 and T2 Applications at the LTB

To go on the offensive, log into the Tribunals Ontario Portal. You need to file a T6 Application (about Maintenance) and a T2 Application (about Tenant Rights and Harassment). In these forms, you will outline exactly how the landlord’s deliberate negligence has ruined your living conditions. You can request that the adjudicator order the landlord to complete the repairs immediately under threat of massive provincial fines.

Step 5: Demand a Substantial Rent Abatement

In your applications, you must ask for a “rent abatement.” This is a financial penalty against the landlord. 💵 If you lived without heat for two months, you can ask the LTB to order the landlord to refund you 50% to 100% of the rent you paid during those terrible months. You can also ask to be reimbursed for any out-of-pocket expenses, such as buying space heaters or paying for a hotel room when the unit was freezing.

How Much Does it Cost in Ontario?

Fighting a slumlord is relatively inexpensive regarding government fees, but the emotional cost is high. Professional representation can greatly ease the burden.

Action / ServiceEstimated Cost (CAD)
Municipal By-law Inspection$0 (Free public service)
Filing T2 / T6 Applications (Online)$45 (Often combined into one fee)
Hiring an Ontario Paralegal$800 – $2,000+
Out-of-pocket emergency repairsVaries (Keep receipts for reimbursement)

How Long Does the Process Take?

Living in unlivable conditions requires urgent action, and the LTB does have mechanisms for extreme emergencies.

  • By-law Response: For vital services (no heat in winter), municipal by-law officers typically respond within 24 to 48 hours.
  • Request to Shorten Time: When you file your LTB applications, you can submit a “Request to Extend or Shorten Time” form. If your health or safety is in immediate danger, the LTB may schedule an emergency hearing within a few weeks.
  • Standard Hearings: If the issue is serious but not immediately life-threatening (e.g., slow leaks, peeling paint), you may wait 8 to 12 months for a standard hearing date.

Frequently Asked Questions (FAQ)

What temperature must a landlord maintain in winter?

In Ontario, the provincial standard generally requires landlords to maintain a minimum room temperature of 20 degrees Celsius from September 1 to June 15. Many local municipalities, like Toronto, have even stricter local by-laws enforcing up to 21 degrees.

Can I hire my own plumber and deduct it from my rent?

No, you cannot simply deduct it. If it is a true emergency (like a burst pipe) and the landlord is completely unreachable, you can pay for the repair out of pocket. However, you must file a T6 application at the LTB to force the landlord to reimburse you.

What if the landlord blames me for the mold?

Landlords frequently try to blame tenants for mold by claiming they don’t ventilate the bathroom. This is why a municipal by-law inspection is crucial. An independent city inspector can confirm if the mold is caused by a structural roof leak or poor building insulation, proving the landlord is at fault.

Will the LTB force the landlord to pay for my ruined furniture?

If your personal property (like a couch or a TV) was destroyed because the landlord negligently ignored a leaking roof, you can ask the LTB for compensation. You must provide photographs of the ruined items and receipts proving their original value.

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