Landlord Liability for Pest Infestations and Extermination Costs

Maintenance & Repairs Quebec 6 min read · published September 29, 2026 Flag of Quebec
Pest problems can make a rental home uncomfortable, unsafe, and difficult to use. In Quebec, a landlord is generally responsible for maintaining the dwelling in good, habitable condition, including addressing infestations that are not caused by the tenant. A renter may be responsible where clear evidence shows that the infestation resulted from the tenant’s actions or failure to follow reasonable prevention instructions. This guide explains Quebec tenant rights, who usually pays extermination costs, how to notify a landlord, what evidence to preserve, and how to seek help from the Administrative Housing Tribunal. Acting promptly can protect your health, belongings, and position in a dispute while giving the landlord a fair opportunity to investigate and arrange treatment.

Who is responsible for pests in a Quebec rental?

Quebec’s Civil Code requires a landlord to provide and maintain a dwelling that is fit for habitation and to carry out necessary repairs other than minor maintenance that falls to the tenant.[1] A pest infestation can be a maintenance and habitability problem, particularly when it affects sleeping areas, food preparation, sanitation, or access to parts of the home.

The cause of the infestation is important. If pests entered because of a building-wide condition, neighbouring units, structural openings, moisture, or delayed treatment, the landlord will generally need to investigate and coordinate professional extermination. If the landlord proves that the tenant caused or materially worsened the problem through unreasonable conduct, the tenant may be required to reimburse reasonable costs.

Responsibility is not always obvious when several units are affected. The landlord should investigate the source, inspect affected areas with proper notice, and take reasonable steps to prevent the infestation from spreading. Tenants should cooperate with preparation instructions and access arrangements, but should not be expected to accept unsafe or ineffective treatment.

A tenant is not automatically responsible for extermination costs simply because pests were found in the tenant’s unit.

For practical guidance about reporting and addressing an infestation, see Dealing with Pests in Your Rental: Tenant Rights and Effective Solutions.

When can a landlord charge the tenant?

A landlord may seek payment when reliable evidence connects the infestation or additional treatment costs to the tenant’s negligence or breach of the lease. A demand should identify the alleged conduct, the dates, the work performed, and the amount claimed. A landlord cannot simply impose an arbitrary fee or deduct money without a lawful basis.

  • Keep photographs, pest-control reports, invoices, messages, and a dated log of sightings and treatment visits.
  • Review the lease for reasonable cleaning, garbage, food-storage, and access obligations without assuming that every charge is valid.
  • Ask for an itemized explanation before paying an extermination invoice or agreeing that the amount is owed.
  • Do not sign an admission of responsibility under pressure, especially if the source of the infestation has not been investigated.
Do not ignore a pest notice because untreated infestations can spread and make responsibility harder to determine.

What tenants should do after finding pests

Notify the landlord in writing as soon as possible, describe the type and location of the pests, and request an inspection and treatment plan. Written notice creates a record and helps show that you acted reasonably. Keep communication factual and avoid making unsupported accusations.

Continue following reasonable housekeeping and preparation instructions, such as storing food securely, reducing clutter where requested, and making the unit available for scheduled treatment. Ask whether the product requires you to leave temporarily, how long you must stay away, and when it is safe to return. The landlord remains responsible for arranging appropriate work when the issue falls within the landlord’s obligations.

Health and habitability concerns may overlap with other rental problems; the guide Health and Safety Issues Every Tenant Should Know When Renting provides related tenant-focused information.

Evidence that can support your position

  • Take clear photos or videos showing pests, damage, entry points, droppings, or affected belongings.
  • Record when you discovered the problem, when you notified the landlord, and every response or missed appointment.
  • Save written notices, exterminator instructions, receipts for reasonable emergency supplies, and any medical or replacement-cost records.
  • Document inspection and treatment access arrangements, including whether proper notice was provided.

Do not use pesticides in a way that conflicts with professional instructions or creates a safety risk for children, pets, or neighbours. If you need temporary accommodation because the unit is unsafe, ask the landlord in writing about the proposed arrangements and keep receipts, but understand that reimbursement can depend on the facts and a tribunal’s decision.

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What if the landlord refuses to act?

Send a second written notice that summarizes the original report, the continuing problem, and the remedy requested. Give a reasonable deadline based on the seriousness of the infestation, while making clear that urgent health or safety conditions require faster action. You can also contact the municipality if the condition may violate local housing or sanitation rules.

If the landlord does not respond adequately, a tenant may apply to the Administrative Housing Tribunal, commonly called the TAL. Depending on the evidence, a tenant may ask for an order requiring work, a rent reduction, reimbursement of proven expenses, or damages. The tenant must show the condition, the notice given to the landlord, and the losses or impact claimed.

The TAL’s official residential tenancy information and application services explain how to start a case. The general application process is used when a tenant asks the tribunal to order repairs or another remedy; for example, a tenant with repeated bedbug treatment failures could attach notices, photos, treatment reports, and a timeline to an application.

Official legislation and forms

  • Civil Code of Québec, CQLR c CCQ-1991: review the provisions on the landlord’s duty to provide and maintain a habitable dwelling, including articles 1854 and 1910, when explaining why treatment is requested.[2]
  • Administrative Housing Tribunal application: use the TAL application service or applicable paper form to request an order, rent reduction, or compensation when the landlord has not resolved the infestation; a tenant should include the lease, notices, photos, and invoices.[3]
  • Notice and procedural forms: use the TAL’s current forms and notices page to confirm the correct form, filing method, and service requirements for the remedy being requested, rather than relying on an outdated template.[3]

Quebec tenants can also review the general division of duties in Obligations of Landlords and Tenants: Rights and Responsibilities Explained. If you are searching for a different rental while dealing with the issue, Find rental homes across Canada on Houseme.

How to respond to a pest infestation

  1. Document the pests, affected areas, damage, and dates with photographs, videos, and a written log.
  2. Send the landlord a written notice describing the problem and requesting an inspection and professional treatment plan.
  3. Provide reasonable access for inspection and treatment while asking for safety, preparation, and return instructions.
  4. Keep receipts and request an itemized explanation for any extermination cost or damage claim.
  5. Apply to the Administrative Housing Tribunal if the landlord fails to act, and attach your lease, notices, evidence, and expense records.

Frequently Asked Questions

Does the landlord always pay for extermination in Quebec?
No. The landlord generally pays when the infestation is a building or maintenance problem, but a tenant may be responsible for reasonable costs caused by the tenant’s proven negligence or breach of obligations.
Can a landlord evict a tenant for reporting pests?
A landlord cannot lawfully punish a tenant for asserting legal rights, but an eviction case can involve other alleged grounds and is decided on the evidence and applicable rules.
Can I withhold rent until the pests are gone?
Do not simply stop paying rent without legal advice or an order, because unpaid rent can create a separate dispute; request an appropriate remedy from the Administrative Housing Tribunal instead.
What should I do if the landlord says the pests are my fault?
Ask for the allegation and supporting records in writing, preserve your own evidence, cooperate with reasonable treatment steps, and challenge an unsupported claim through the TAL if necessary.

Help and Support / Resources


  1. [1] Civil Code of Québec, landlord and tenant obligations
  2. [2] Civil Code of Québec, CQLR c CCQ-1991
  3. [3] Administrative Housing Tribunal forms and notices

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Sarah Mitchell
Sarah Mitchell

Senior Housing Rights Researcher, Tenant Rights Canada

Sarah has spent over a decade researching tenant legislation across Western Canada, with a particular focus on British Columbia and Alberta. She holds a certificate in Housing Policy from Simon Fraser University and has contributed to several housing advocacy organizations.