The short version
- The landlord keeps the place in a good state of repair. That duty applies even if the tenant knew about the problem before signing.
- The tenant keeps the unit ordinarily clean and repairs damage they or their guests caused.
- Where the landlord supplies the heat, the law sets 20 degrees Celsius from September 1 to June 15.
- There is no fixed repair deadline in the Act. The test is reasonable, and an emergency is not the same as a dripping tap.
- A tenant should not withhold rent over repairs. The route is a written request, then a T6 application.
01The split: repair versus clean
Section 20 of the Residential Tenancies Act puts the repair duty on the landlord. You provide and maintain the complex and the units in a good state of repair, fit to live in, and in line with health, safety, housing and maintenance standards.
The next line matters more than people expect. That duty applies even if the tenant knew about the problem before they signed. A tenant who took the place knowing the back window did not close has not agreed to live with it.
The tenant's side is narrower. Section 33 makes the tenant responsible for ordinary cleanliness. Section 34 makes them responsible for repairing undue damage caused deliberately or carelessly by them, another occupant or someone they let in.
So the dividing line is not how big the job is. It is what caused it. A twenty year old dishwasher that dies is yours. A dishwasher a guest broke is theirs.
| The problem | Usually whose |
|---|---|
| Furnace stops working in November | Landlord |
| Roof leaks into the ceiling | Landlord |
| Fridge fails after eight years | Landlord |
| Mould from a plumbing leak | Landlord |
| Cracked window from a thrown object | Tenant |
| Drain blocked by what went down it | Tenant |
| Burn mark on a countertop | Tenant |
| Carpet worn thin after six years | Landlord, this is ordinary wear |
02Heat has a number
Most of this area is judgement. Heat is not. The regulation under the Act names September 1 to June 15 as the period when heat is a vital service.
During that period, where the landlord supplies the heat, it has to be provided so that the temperature is at least 20 degrees Celsius. The measurement is taken 1.5 metres above the floor and one metre from an outside wall, in any habitable space and in areas tenants normally use, such as a recreation room or a laundry room. Locker rooms and garages are excluded.
There is one exception. The rule does not apply to a unit where the tenant controls the temperature themselves and 20 degrees can be maintained by the main heat source. If the tenant has the thermostat, the duty is that the system can deliver, not that the room is at any particular number.
Municipal by-laws can set a higher standard, and many cities do. Check yours, because that is the number an inspector will use.
03How fast is fast enough
There is no table of deadlines in the Act. The standard is a good state of repair, and what that means in practice is judged case by case.
That sounds vague, and it is, but it works out in a predictable way. The more the problem affects health, safety or the basic use of the home, the shorter the reasonable window.
No heat in February, no water, no working lock on the front door, a live electrical fault: these are same day or next day. A leak that is spreading is measured in days. A cupboard door that will not sit straight can wait for the next visit.
The practical answer is to reply the same day even if you cannot fix it the same day. Tell the tenant what you are doing and when. Most maintenance applications to the Board are not about the repair taking two weeks. They are about nobody answering for two weeks.
04How to document a repair
If a repair ever gets argued about, it will be argued about a year later, from memory, unless you wrote it down. Five fields are enough.
- 1
The date it was reported, and by whom
In writing where possible. A text message counts. If the tenant told you at the door, send them a short message confirming what you heard, which puts a date on it.
- 2
What the problem is, with a photo
One photo at the time of reporting. It settles later arguments about whether the damage grew or was always that size.
- 3
What you did, and when
Booked a contractor on the 3rd, attended on the 6th, part ordered, returned on the 11th. Gaps are fine if they are explained.
- 4
The invoice
Keep it. It is proof of the work and it is a deductible expense at year end, on the repairs and maintenance line of the T776.
- 5
The date it was closed
Ideally with the tenant confirming it is fixed. That confirmation is worth more than anything else in the file.
05What a tenant can do instead of withholding rent
The Board's own guidance is direct about this. A tenant should not withhold any part of the rent, even where maintenance is poor. Withholding rent creates arrears, and arrears are their own process with their own notice.
The route that works starts with a written request. A letter, an email or a maintenance form, with a copy kept. That copy is the first exhibit in every successful maintenance case.
If the problem is not fixed in a reasonable time, the tenant can file a T6, Tenant Application about Maintenance. It costs $53, or $48 through the Tribunals Ontario Portal. There is a one year limit: the application has to be made within a year of the conduct complained about.
The Board has real remedies. It can order a rent abatement, order the repair done by a deadline, authorise the tenant to do the repair and be reimbursed, award money for expenses or damaged property, prohibit a rent increase until the work is done, or in a serious case end the tenancy.
There is also a middle route. Where a tenant has a maintenance application in front of the Board, section 195 lets the Board permit the tenant to pay some or all of the rent into the Board instead of to the landlord. Rent paid that way is not treated as a default. That is the lawful version of what withholding is trying to be.
06What to do this month
How TenantBay helps: each issue carries its own activity timeline, so the reported date, what was done, the invoice and the closing date sit on one record instead of across a phone and a shoebox.
- Put one written channel in front of every tenant for repairs, and reply on it the same day.
- Check the heat before September 1, not in the first cold week.
- Write down five fields per repair: reported, what, action, invoice, closed.
- Keep every invoice. They are the evidence at a hearing and the deduction at tax time.
- If a tenant says they are withholding rent, answer the repair first and the arrears second. Both processes will run, and the repair is the one you can still influence.
Questions landlords actually ask
Can a tenant in Ontario withhold rent for repairs?
No. The Landlord and Tenant Board's guidance is that a tenant should not withhold any part of the rent even where maintenance is poor. The proper route is a written request and then a T6 application.
What is the minimum heat temperature in Ontario?
Where the landlord supplies heat, the regulation requires at least 20 degrees Celsius from September 1 to June 15, measured 1.5 metres above the floor and one metre from an exterior wall. Municipal by-laws may set a higher standard.
How long does a landlord have to fix something?
The Act does not set a number. The duty is to keep the unit in a good state of repair, and what is reasonable depends on how much the problem affects health, safety and normal use of the home.
What does a T6 application cost?
$53, or $48 if it is filed through the Tribunals Ontario Portal. It has to be filed within one year of the conduct complained about. Check the Board's fees page for the current amount.
Sources
- Residential Tenancies Act, 2006, Ontario e-Laws (read September 6, 2026)
- O. Reg. 516/06, General, under the Residential Tenancies Act (read September 6, 2026)
- Landlord and Tenant Board brochure: maintenance and repairs (read September 6, 2026)
- Landlord and Tenant Board, forms, filing and fees (read September 6, 2026)


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