How to Kill Mold on Wood in 6 Simple Steps

Protect the integrity of wood surfaces

A woman preparing a meal on a wooden countertop
Photo: Cavan Images / Cavan / Getty Images
A woman preparing a meal on a wooden countertop
Photo: Cavan Images / Cavan / Getty Images
Kate Fann
Written by Kate Fann
Contributing Writer
Updated November 7, 2023

Difficulty

Easy

Simple project; big impact.

Time to complete

1 hour

Cost

Up to $25

You might need a thing or two.

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What you'll need:

TOOLS
  • Protective face mask
  • Safety glasses
  • Safety gloves
  • Soft bristle brush
  • Spray bottle
  • Sponge
  • Vacuum
SUPPLIES
  • Baking soda
  • Plastic sheets or tarps
  • Soap and water
  • White vinegar

Mold growing on wooden surfaces not only ruins the appearance but also presents health hazards. It's essential to take prompt action to address mold on wood to maintain a healthy environment and protect the integrity of the material. Read on to learn how to kill mold on wood to eliminate visible mold and prevent its recurrence.

Prepping to Kill Mold on Wood

When performing any project that deals with the presence of mold, proper protective gear is essential, so ensure that you are wearing safety glasses, gloves, and a face mask before starting any work. Before you begin the steps, you need to isolate the area to prevent mold spores from spreading to other parts of your home. Lay out plastic sheets or tarps on the floor and on top of furniture to prevent mold debris from getting onto other surfaces.

Another important safety measure for killing mold is to ensure adequate ventilation in the area to reduce the concentration of mold spores in the air. The best method is to open windows in the area to provide fresh air.

Angi Tip
Mold remediation that requires the removal of drywall can be difficult to contain. Any sort of demolition can cause spores to travel into your home’s HVAC system leading to potentially more harmful infestations. A mold removal pro will have the right tools and skills to contain it.
Caroline Gilbert
Director, Content & Editorial, Angi
  1. Remove Dust

    Using a soft-bristled brush, gently remove any loose dust and dirt from the surface of the wood. This provides better access to the mold area for the best removal results. Vacuum the area afterward to clean fallen debris.

  2. Prepare and Apply Cleaning Solution

    A woman applying a cleaning solution on a wooden surface
    Photo: Thana Prasongsin / Moment / Getty Images

    First, clean the area with a mild dish soap and water using a sponge and gentle pressure. In a spray bottle, mix equal parts of white vinegar and water. Apply the natural mold killer solution to the moldy wood surface. Let it sit on the area for roughly 10 to15 minutes to loosen the mold.

  3. Scrub Area

    Using a sponge, scrub the moldy area using moderate pressure. If the mold isn't lifting well, consider preparing a natural scrub to move the process along. Mix baking soda with water to create a paste and scrub gently with the sponge.

  4. Rinse Area

    Using clean water and a separate sponge, wipe away the cleaning solution and rinse the wood surface.

  5. Dry and Reinspect

    Mold thrives in damp conditions, so ensure the wood has dried completely. If the area isn't drying well on its own, consider using a dehumidifier in the room. After the area has dried, reinspect it to ensure the mold has been removed and, if not, repeat the process to rid the area entirely.

  6. Take Preventative Measures

    A person scrubbing an old wooden floor
    Photo: Alexander Pytskiy / iStock / Getty Images Plus / Getty Images

    To prevent mold growth, investigate what caused mold in the first place. Leaks, moisture, or other ventilation issues may be responsible. Determine the cause and take steps to remedy the solution to deter mold growth.

DIY vs. Hiring a Pro

Killing mold on wood surfaces is a generally easy task for even the novice DIYer to complete. However, if the mold infestation persists, covers a large surface area, or the root cause of the mold growth is unknown, it's advisable to hire a mold remediation professional.

A professional will be able to accurately address the issue and recommend actionable solutions. Mold remediation cost ranges between $1,125 to $3,345, but will largely depend on the severity of your mold issue.

Frequently Asked Questions

Although both bleach and vinegar are effective in killing mold on wood, vinegar is generally considered the better option. Bleach is a potent disinfectant that can swiftly and effectively eradicate most types of mold on wooden surfaces. However, diluting it with water and using it in a well-ventilated space while wearing protective gear is crucial as it can be harsh and potentially harm the wood's finish or discolor it.

On the other hand, vinegar is a gentler and more natural alternative that can successfully kill mold, but it may take longer and require multiple applications for persistent infestations. Vinegar is a safer option that is less likely to cause damage to wooden surfaces, making it an excellent choice for delicate areas or when a milder approach is preferred.

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Learn more about our contributor
Kate Fann
Written by Kate Fann
Contributing Writer
Kate Fann is a content writer with ten years of online writing experience, taking a specialized focus on strategic SEO.
Kate Fann is a content writer with ten years of online writing experience, taking a specialized focus on strategic SEO.
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