Landlord Responsibilities for Black Mold: Ontario Guide

Landlord Responsibilities for Black Mold in Ontario

Landlord responsibilities for black mold in Ontario begin with the duty to keep rental homes in good repair and fit to live in. Landlords must also meet health, safety, housing and maintenance standards. Therefore, mould reports need a proper response.

This guide explains landlord responsibilities for black mold in rentals covered by Ontario’s Residential Tenancies Act (RTA). It covers repair duties, tenant reports and practical next steps. For a dispute, get advice from a lawyer, licensed paralegal or legal clinic.

Call Us: 416-800-0000

What Does Black Mold Mean?

Many kinds of mould look dark or black. However, colour alone does not tell you the type or risk.

The concern is growth indoors and the dampness that lets it spread. Also, mould does not need to be black to deserve attention. If you think mould is making you ill, speak with a doctor.

Landlord Mould Duties: Respond and Investigate

First, reply to the tenant and arrange a site check. Note which rooms have growth, smells or leaks. Then, decide what needs prompt action and explain the plan.

The Ontario standard lease guide explains the landlord’s duty to maintain the unit and property. A maintenance duty cannot simply be signed away by adding a lease clause. Also, keep a copy of the report and your reply.

Find and Fix the Moisture Source

Mould may follow a roof leak, failed pipe, damp basement or poor airflow. Therefore, landlord responsibilities for black mold include addressing building defects that cause the problem, where those repairs are the landlord’s duty.

For example, wiping a wall will not fix a leaking pipe behind it. Our water damage team can check wet materials and drying needs. Also, arrange the source repair so new water does not undo the cleanup.

Arrange Rental Mould Repairs Safely

The plan should suit the size of the patch, what is wet and where the water came from. A small patch on tile needs different care from growth spread inside a wall. Therefore, get skilled help for large areas or growth that keeps coming back.

Our mould removal service can check what needs cleaning and what needs to be taken out. Do not simply paint over growth. Instead, correct moisture, clean or remove affected materials, and dry the area before finishing repairs.

Does the Landlord Need a Mould Test?

Not every report needs lab samples. The EPA’s testing guidance says samples are usually unnecessary when mould is visible. First, inspect the area and identify the moisture problem.

If a qualified assessor proposes testing, ask what question it will answer. Also, a low spore count does not prove every hidden space is clear. Likewise, an air test cannot take the place of repairs or tell you why a tenant feels ill.

Follow Entry Rules and Keep Tenants Informed

For most planned inspections or repairs, give at least 24 hours’ written notice. The notice must state the reason, date and time of entry. Also, entry must take place between 8 a.m. and 8 p.m.

However, an emergency or the tenant’s consent at the time of entry can allow entry without notice. A repair request alone is not consent to enter whenever you choose. Also, explain which rooms will be out of use and plan access while work takes place.

Mould in Rental Homes: Tenant Duties

Tenants must keep the unit reasonably clean unless the landlord has agreed to do so. They are also responsible for undue damage caused wilfully or through negligence by them, their occupants or guests. However, normal wear and tear is not tenant damage.

Also, use working exhaust fans, keep vents clear and report leaks promptly. These steps can help limit dampness. However, neither side should assume who caused mould without checking the facts. If costs are disputed, get advice on responsibility and the proper process.

Unresolved Mould in Rental Homes: Tenant Options

If the problem continues, keep clear records and use the proper complaint process. Understanding landlord responsibilities for black mold helps you ask for specific repairs and explain what remains unresolved.

Report the Problem in Writing

First, tell the landlord or manager where the problem is and when it began. Include photos taken safely. Also, describe leaks, odours and any rooms you cannot use normally. Ask for a response and a plan for repairs.

Next, keep copies of messages, replies and work dates. Then, record whether the problem returns. However, do not open suspect walls or disturb growth to gather evidence.

Ask About Municipal Help and an LTB Application

In Toronto, contact 311 if the landlord has not resolved a reported issue within a reasonable time. The City’s housing property standards guidance explains this route. Outside Toronto, contact your local property standards office.

You may also apply to the Landlord and Tenant Board using Form T6: Tenant Application about Maintenance. Check the LTB’s current forms and filing guidance. The Board can order repairs or grant other remedies based on the evidence. However, filing does not mean you will win.

Do Not Withhold Rent on Your Own

Keep paying rent while pursuing the repair issue. Do not stop payments or deduct cleanup costs on your own. Unpaid rent can lead to an eviction application.

The LTB can make orders about rent, costs or payment to the Board. However, filing a T6 does not itself change what you must pay. First, get legal advice about the outcome you seek and follow any order made.

Finish Rental Mould Repairs with a Follow-Up

Finally, check that source repairs and cleanup are complete. Keep photos, moisture findings, invoices and tenant updates. Also, review any fresh stains, dampness or musty smells.

GTA Restoration can help check the building problem and plan the work. For an initial discussion, see our visual inspection options. Also, confirm what the visit covers and any charges before booking.

Need Help with Mould in a Rental Property?

Call GTA Restoration to discuss moisture, mould cleanup and the work your property needs.

Call Us: 416-800-0000

Learn More

Mould Removal | Water Damage Help | Visual Inspection Options