Mold Testing and Inspections in New Brunswick Rentals

Maintenance & Repairs New Brunswick 3 min read · published June 24, 2026 Flag of New Brunswick

Renters in New Brunswick often worry about mold, how to get testing or inspections, and what landlords must do to keep units safe. This guide explains practical steps tenants can take when they suspect mold, how to request an inspection, what tests mean, and when to use official forms or contact the Residential Tenancies Tribunal[1]. It covers tenant and landlord responsibilities under New Brunswick law, how to document problems, and how testing results affect repairs and habitability. The advice aims to help renters communicate clearly, protect health, and follow the right process while keeping records and deadlines in mind.

Mold basics for renters in New Brunswick

Mold is a common issue after leaks, poor ventilation, or high indoor humidity. Small patches on paint or drywall can be a sign of a larger moisture problem. Not all mold is toxic, but any visible growth or persistent damp should be addressed quickly because it can harm property and, in some cases, health.

In most regions, tenants are entitled to basic habitability standards.

When to consider testing

  • Visible mold growth on walls, ceilings, or flooring.
  • Persistent dampness, recurring water leaks, or condensation that leads to mold.
  • Health symptoms like unexplained allergies or respiratory irritation that appear at home.

Common types of inspection and testing

  • Visual inspection by a qualified inspector to find sources of moisture and visible growth.
  • Air sampling to measure spore counts when hidden mold or health concerns exist.
  • Surface or tape sampling to identify specific mold types on materials.

Getting tests and inspections

Start by notifying your landlord in writing about the problem and asking for an inspection. If the landlord arranges testing, ask which company will do the work and request a copy of results. If the landlord does not respond or you doubt the inspection, you may arrange independent testing; keep receipts and reports to support any dispute or repair request. For general tenant health guidance, see Health and Safety Issues Every Tenant Should Know When Renting.

Keep dated photos and a simple log of moisture, visible mold, and any symptoms you notice.

If tests show elevated mold or a clear moisture source, repairs should follow promptly. Landlords are normally responsible for fixing structural leaks, ventilation, or other causes that affect habitability. If the landlord fails to act, New Brunswick tenants can file an application with the Residential Tenancies Tribunal[1] or use official forms to request a remedy[3]. For a quick refresher on tenant and landlord duties in this province, see Tenant Rights and Landlord Rights in New Brunswick.

Respond to written requests and keep copies to preserve your rights and timelines.
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FAQ

Can my landlord require mold testing?
Yes. A landlord can arrange testing if they believe mold is present. Tenants should request a copy of results and clarification on planned repairs.
Who pays for testing and repairs?
In most cases, landlords pay for testing and repairs when the problem stems from building issues such as leaks or poor ventilation. If tenant activity caused damage, costs may be discussed between landlord and tenant or decided by the tribunal.
What if my landlord won’t fix the problem?
If informal requests fail, tenants can file an application with the Residential Tenancies Tribunal to request orders for repairs or rent adjustments; include photos, test results, and written notices as evidence.
Detailed documentation increases your chances of success in disputes.

How-To

  1. Document the problem: take dated photos, note smells and symptoms, and keep a short written log.
  2. Notify your landlord in writing describing the issue and requesting an inspection and repairs; keep a copy.
  3. Request or attend an inspection and ask for a written report naming causes and recommended actions.
  4. If needed, arrange independent testing and keep results and invoices for evidence.
  5. If the landlord won’t act, file an application with the Residential Tenancies Tribunal[1] including all documentation and test reports.
  6. Follow tribunal directions, keep records of all communications, and confirm repairs are completed satisfactorily.

Help and Support / Resources


  1. [1] Residential Tenancies Tribunal (Service New Brunswick)
  2. [2] Residential Tenancies Act (New Brunswick)
  3. [3] Service New Brunswick forms and applications

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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.