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What should tenants do about mold problems in a rental?

Minnesota rental guidance and tenant-landlord operational information.
Published March 5, 2026 State-specific rental guidance Update This Question
Reviewed by Tenants & Landlords Editorial Team

This rental guidance was reviewed by the Tenants & Landlords Intelligence Team, specializing in lease agreements, notices, rent disputes, deposits, evictions, and tenant-landlord operational procedures.

Asked 89 days ago · Minnesota

Handling Mold Problems in Minnesota Rental Properties: A Guide for Tenants

Mold can pose significant health risks and damage rental properties if left unaddressed. For tenants in Minnesota, understanding your rights and responsibilities when dealing with mold is crucial to ensuring a safe and healthy living environment. This guide provides comprehensive information about how tenants should approach mold problems in their rental units, including steps to take and relevant Minnesota laws.


Understanding Mold and Its Impact

Mold is a type of fungus that thrives in damp, humid, or poorly ventilated areas. Common causes in homes include water leaks, condensation, or flooding. Exposure to mold can lead to allergies, respiratory problems, and other health issues, especially for people with asthma or weakened immune systems.

In Minnesota’s cold climate, moisture problems can be more prevalent during winter months due to condensation and inadequate heating or ventilation. Therefore, prompt action is essential when mold is discovered.


Tenant Responsibilities Regarding Mold

It is important for tenants to fulfill certain duties to help prevent and control mold growth:

  • Maintain Cleanliness: Keep the rental unit clean and dry. Regularly wipe down surfaces prone to moisture accumulation, such as bathrooms and kitchens.
  • Ventilation: Use exhaust fans or open windows when cooking or showering to reduce humidity.
  • Report Water Issues Promptly: Notify the landlord immediately about leaks, flooding, or other water intrusion problems that could lead to mold.
  • Avoid Creating Conditions for Mold: Do not block air vents or use unvented appliances that produce excess moisture inside the unit.
  • Promptly Report Any Mold Signs: If mold appears, inform the landlord without delay to allow for remediation.

Landlord Obligations Under Minnesota Law

Minnesota landlords have a legal duty to provide a habitable living environment, which includes addressing mold problems arising from structural issues or failures in property maintenance. Under the Minnesota Residential Landlord and Tenant Act, landlords must:

  • Maintain the Premises: Keep the rental premises in compliance with health and safety standards, including repairing leaks and preventing water intrusion.
  • Remediate Mold: If mold results from leaks, plumbing failures, or other landlord-related problems, the landlord must repair the cause and properly clean or remove mold contamination.
  • Respond Promptly: Act quickly upon tenant notification of mold or water problems to prevent health hazards or further property damage.
  • Comply with Building Codes: Ensure the property meets applicable building codes related to ventilation, heating, and moisture control.

Steps Tenants Should Take When Facing Mold Issues

If you discover mold or suspect a mold problem in your Minnesota rental unit, follow these steps to protect your health and your rights:

  1. Document the Mold
- Take clear photographs or videos of the mold-affected areas. - Note the date and location where the mold was found.
  1. Notify the Landlord in Writing
- Provide a written notice (email or letter) describing the mold problem, including any suspected causes such as leaks or poor ventilation. - Keep a copy of all communication for your records.
  1. Request Prompt Action
- Ask the landlord to inspect and repair the source of moisture and to remediate the mold issue. - Reasonable timeframes for repair depend on the severity but generally, urgent issues should be addressed within days to weeks.
  1. Take Reasonable Steps to Minimize Mold Growth
- Increase ventilation and reduce humidity in the unit if possible. - Follow any instructions provided by the landlord maintenance team.
  1. Seek Inspection if Needed
- If the landlord does not respond or takes no action, you may contact local health or building authorities in Minnesota to request an inspection. - Some cities, such as Minneapolis and St. Paul, have housing codes that include mold or moisture-related standards.
  1. Understand Your Legal Remedies
- If the landlord fails to address mold issues in a timely manner, tenants may have legal options such as withholding rent, breaking the lease, or suing for damages. Consulting a qualified attorney or tenant advocacy group in Minnesota can provide guidance tailored to your situation.

Preventive Tips for Tenants in Minnesota

Since Minnesota’s cold winters and temperature fluctuations can exacerbate moisture issues, tenants should be proactive to prevent mold:

  • Use a dehumidifier in rooms prone to dampness.
  • Regularly inspect areas under sinks, around windows, and near plumbing fixtures.
  • Avoid drying clothes indoors without proper ventilation.
  • Keep indoor temperatures consistent to reduce condensation.

Resources for Minnesota Tenants

  • Minnesota Attorney General’s Office: Provides resources and information about tenant rights and responsibilities.
  • Local Health Departments & Code Enforcement: Can investigate complaints related to housing conditions including mold.
  • Tenant Advocacy Organizations: Groups such as Project for Pride in Living or Twin Cities Tenant Union offer counseling and legal assistance to renters.
  • Minnesota Statutes Chapter 504B (Landlord and Tenant Act): Detailed laws governing landlord and tenant relationships.

Summary

Mold in rental housing is a significant concern for Minnesota tenants. By understanding your role in maintaining the rental unit, promptly reporting problems, and knowing your landlord’s legal obligations, you can help ensure the issue is resolved effectively. Proactive communication, documentation, and, if necessary, involvement of local agencies or legal professionals are key steps to protect your health and rights.

Address mold problems early to maintain a safe, comfortable home throughout Minnesota’s varied climate.

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