Repairs Maintenance

What should tenants do about mold problems in a rental?

Hawaii rental guidance and tenant-landlord operational information.
Published March 24, 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 70 days ago · Hawaii

Tenant Guidance on Mold Problems in Rental Properties in Hawaii

Mold growth in rental properties is a common issue in Hawaii due to the state’s warm, humid climate. As a tenant in Hawaii, understanding your rights and responsibilities regarding mold is important to maintain a safe and livable environment. This guidance outlines what tenants should do when they encounter mold problems in a rental unit, as well as how to work effectively with landlords to resolve the issue.


Understanding Mold and Its Implications in Hawaii

Hawaii’s tropical climate encourages moisture accumulation, which can lead to mold growth if proper maintenance is not observed. Mold poses health risks including allergic reactions, respiratory issues, and aggravation of asthma or other medical conditions. Therefore, addressing mold problems promptly is crucial.


Tenants’ Responsibilities Regarding Mold

While landlords have legal duties related to habitability, tenants also play a key role in preventing and managing mold growth. Here are the primary tenant responsibilities:

  • Keep the rental unit clean and dry: Regularly clean surfaces susceptible to mold, such as bathroom tiles and kitchen areas. Wipe down any condensation on windows or walls.
  • Ventilate the unit: Use exhaust fans in bathrooms and kitchens whenever possible and open windows for airflow, especially after activities producing moisture.
  • Report leaks and moisture problems promptly: Mold growth often stems from leaks or sustained moisture. Notify your landlord immediately if you notice leaks in plumbing, ceilings, or walls.
  • Avoid actions that encourage mold growth: Do not block airflow, and avoid placing furniture directly against walls, which can trap moisture.

Landlord’s Legal Duties Regarding Mold in Hawaii

Under Hawaii Revised Statutes (HRS) Chapter 521, landlords must provide and maintain rental properties in a safe and habitable condition. This includes addressing issues that contribute to mold growth. Key landlord obligations include:

  • Repairing plumbing leaks, cracks, or structural issues contributing to moisture buildup.
  • Ensuring adequate ventilation systems are functional and maintained.
  • Taking mold remediation steps when mold is identified in the rental unit.

Steps Tenants Should Take if Mold Is Found

If you discover mold in your rental unit, follow these steps to ensure the problem is addressed properly:

1. Document the Problem

  • Take clear photographs or videos of the mold infestation and any water damage.
  • Record dates when you first noticed the mold and when you report the issue.
  • Keep a written log of all communications with your landlord regarding the problem.

2. Notify the Landlord in Writing

  • Send a written notice (email or letter) to your landlord detailing the mold problem and requesting prompt remediation.
  • Include your documentation as attachments or references.
  • Ask for a timeline on when the repairs and mold remediation will occur.

3. Follow Up and Maintain Communication

  • If the landlord does not respond or delays action, follow up with additional written notices.
  • Maintain polite and professional communication but assert your right to a safe environment.

4. Take Reasonable Steps to Mitigate Mold

  • Use fans and dehumidifiers to reduce moisture while waiting for repairs.
  • Clean small affected areas yourself with appropriate cleaning solutions, such as diluted bleach (1 cup bleach to 1 gallon water), if safe and feasible.
  • Avoid extensive personal remediation efforts; large mold problems require professional treatment.

When to Seek External Help

If your landlord fails to acknowledge or fix the mold problem, tenants in Hawaii have additional options:

  • Contact the Hawaii Department of Health (DOH): The Clean Air Branch can offer guidance on indoor air quality and mold concerns.
  • File a complaint with the Honolulu Board of Water Supply or other relevant local agencies if water intrusion or plumbing issues are unresolved.
  • Consider mediation or legal advice: Hawaii tenants may seek assistance from tenant rights organizations or consult attorneys specializing in landlord-tenant law to discuss next steps, including repair-and-deduct remedies or lease termination if the unit becomes uninhabitable.

Preventive Tips for Long-Term Mold Management

Hawaii tenants can adopt habits that help prevent mold from recurring:

  • Use window coverings that allow airflow to reduce condensation.
  • Inspect the property regularly for signs of leaks or water damage.
  • Avoid indoor clothes drying unless in a well-ventilated area.
  • Report and resolve minor maintenance issues early.

Summary

Mold in rental units can significantly impact health and comfort, especially in Hawaii’s humid environment. Tenants should promptly report mold and moisture issues, document their findings, maintain open communication with landlords, and take reasonable steps to control moisture. Landlords are legally obligated to maintain habitable conditions, including addressing mold problems. If the landlord fails to act, tenants can reach out to state agencies or seek legal advice to protect their rights. By working collaboratively and proactively, tenants and landlords can ensure a safe, mold-free living environment in Hawaii.


By understanding your role and employing effective communication, you can help ensure that mold problems in your Hawaii rental are addressed quickly and thoroughly, preserving your health and the integrity of the property.

Ask a Rental Question