Are you tired of seeing your beautiful wooden furniture covered in mildew and mold? If so, you’re not alone.
Mildew can be a common yet frustrating problem for wooden furniture, especially in humid or damp environments. It affects the furniture’s appearance and can lead to unpleasant odors and potential damage if left untreated. Proper cleaning techniques can help remove mildew effectively without harming the wood’s surface. Whether preserving a cherished heirloom or maintaining everyday furniture, learning to safely clean mildew can prolong its lifespan and restore its beauty.

This guide on how to clean mildew off of wood furniture will walk you through the steps and tools needed to tackle mildew while protecting your wooden furniture.
What Are the Causes of Mildew on Wood Furniture?
Before diving into the cleaning process, it’s essential to understand what causes mildew growth on wood furniture.
Mildew is a type of fungus that thrives in warm and humid conditions, making it a common problem for wooden furniture stored in damp basements or exposed to high humidity levels. Poor ventilation and lack of sunlight can also contribute to mildew growth.
Additionally, if the wooden furniture is not properly sealed, moisture can penetrate the wood’s surface, creating an ideal environment for mildew to grow.
What Will You Need?
Before getting started, gather the necessary tools and supplies to clean mildew off of wood furniture effectively.
- Soft-bristled brush or cloth
- Mild soap or detergent
- Water
- White vinegar or bleach (depending on the severity of the mildew)
- Protective gear such as gloves and a face mask
Once you have all the necessary items, follow these steps to clean mildew off of your wooden furniture.
9 Easy Steps on How to Clean Mildew Off of Wood Furniture
Step 1: Prepare the Area
Start by ensuring the area where you’ll be working is well-ventilated, as this will help dissipate any fumes from cleaning agents and prevent you from inhaling them. Open windows, use a fan, or work outdoors. Lay down a drop cloth or old towels to protect the floor or any nearby surfaces from debris or potential spills during cleaning. If you’re cleaning multiple pieces of furniture, create a designated space to place each item so you can clean them thoroughly without obstruction. Finally, wear your protective gear, including gloves and a face mask, to safeguard yourself from mildew spores and cleaning chemicals.
Step 2: Remove Surface Debris
Use a soft-bristle brush or a clean, dry cloth to gently remove any loose dirt, dust, or mildew from the furniture’s surface. Be thorough but careful to avoid scratching or damaging the wood. This initial cleaning step will make it easier for the cleaning solution to penetrate and work more effectively on the affected areas. If the mildew appears stubborn in certain spots, lightly brushing them can help loosen the buildup before applying the cleaner.

Step 3: Apply the Cleaning Solution
Prepare a mild cleaning solution by mixing warm water with a few drops of dish soap or wood-safe detergent. Alternatively, you can use a solution designed explicitly for mildew removal, depending on the severity of the issue. Dip a soft sponge or cloth into the solution, wringing out the excess liquid to avoid over-saturating the wood. Gently wipe down the affected areas, ensuring that the cleaning solution reaches all the crevices where mildew may be hiding. Allow the solution to sit for a few minutes to break down the mold, but do not let it dry on the surface.
Step 4: Rinse and Dry the Furniture
After allowing the cleaning solution to work on the mildew, use a clean cloth dampened with fresh water to wipe away any residue. Remove the cleaning solution thoroughly, as leaving it on the wood may cause streaking or damage over time. Once rinsed, use a dry, soft towel to pat the furniture dry gently. Ensuring the furniture is completely dry helps prevent future mildew growth and protects the integrity of the wood. Place the furniture in a well-ventilated or sunny area to expedite the drying process.
Step 5: Apply a Protective Treatment
Once the furniture is thoroughly clean and dry, consider applying a protective treatment to safeguard it against future mildew growth. Use a wood-safe sealant, wax, or oil, depending on the type of furniture and its finish. Follow the manufacturer’s instructions for application, ensuring an even coat. This protective layer helps repel moisture and enhances the furniture’s appearance, preserving its durability and aesthetic appeal over time. Regular reapplication of the treatment will maintain its effectiveness and keep the furniture in excellent condition.

Step 6: Regular Maintenance and Inspection
Establish a routine for regular maintenance and inspection of your wooden furniture to prevent mildew from returning. Clean the furniture periodically with a damp cloth and mild soap to remove dust and dirt. Inspect for any signs of mold, cracks, or damage that might allow moisture to penetrate the wood. Address any issues promptly to avoid further deterioration. During seasonal changes, especially in humid climates, ensure the furniture remains dry and protected. Consistent care will extend the lifespan of your wooden furniture and keep it looking its best.
Step 7: Proper Storage
Store your wooden furniture in a cool, dry place to protect it from excessive moisture and temperature fluctuations when not in use. Use furniture covers or tarps that allow airflow to prevent condensation from building up. Elevate the furniture slightly off the ground to further reduce the risk of moisture exposure. Proper storage is essential, especially during off-seasons or in regions with high humidity, to maintain the integrity and beauty of your wooden furniture.
Step 8: Reapply Protective Finishes
Over time, the protective finishes on wooden furniture can wear away, leaving it more vulnerable to damage. Regularly reapply a suitable finish, such as wood oil, lacquer, or varnish, to maintain its resilience against moisture and sunlight. Ensure the surface is clean and dry before applying the finish, and follow the manufacturer’s instructions for the best results. This step preserves the furniture’s durability and enhances its natural beauty, ensuring it remains a centerpiece of your space for years.

Step 9: Inspect and Repair Regularly
Regular inspections are crucial for maintaining wooden furniture in top condition. Check for signs of damage such as cracks, warping, or loose joints. Address these issues promptly before they worsen. Tighten any loose screws or joints and fill small cracks with wood filler to prevent further splitting. For more significant damage, consider consulting a professional to restore the piece effectively. Routine maintenance ensures your furniture stays strong and functional, prolonging its life and preserving its aesthetic appeal.
By following these steps, you can effectively remove mildew from your wooden furniture and protect it from future growth.
5 Things You Should Avoid
- Using Excessive Water: Avoid soaking the wood with water as it can seep into the material, causing warping, swelling, or further mildew growth. Always use a damp, not wet, cloth.
- Scrubbing Too Hard: Aggressive scrubbing can damage the wood’s finish or leave permanent scratches. Instead, gently wipe the surface using a soft cloth or sponge.
- Applying Harsh Chemicals: Strong cleaners or bleach can strip the wood’s natural oils and harm the finish. Opt for mild solutions like vinegar diluted with water or specially formulated wood cleaners.
- Skipping Ventilation: Not airing out the furniture during or after cleaning can result in trapped moisture, which encourages mold and mildew to return. Work in a well-ventilated space and allow the wood to dry thoroughly.
- Ignoring Protective Measures: Always test cleaning solutions on a small, inconspicuous area first to ensure they won’t discolor or damage the wood. Skipping this step can lead to unintended damage.
What is the Difference Between Mildew and Mold?
Mold and mildew are fungi that thrive in warm, damp environments. They can often grow on wood, walls, and even fabric surfaces.
The main difference between mold and mildew lies in their appearance and the severity of their effects. Mildew is typically white or gray and has a powdery or fluffy texture. It tends to grow on the surface of materials and can easily be wiped away. Conversely, mold can appear in various colors such as green, black, or brown and has a fuzzy or slimy texture. It penetrates deeper into materials, making removing it more difficult.

In terms of health effects, mold is considered more harmful than mildew. Mold exposure can cause respiratory issues, allergic reactions, and even neurological problems in some cases. Mildew, while still a nuisance, generally does not pose as big of a health risk.
Both mold and mildew are highly dependent on moisture for growth, so addressing any underlying humidity or water issues is essential when dealing with them.
Conclusion
How to clean mildew off of wood furniture, it’s essential to use the proper tools and techniques to prevent damage to the wood.
To create a gentle cleaning solution, begin by combining a mild detergent or white vinegar with warm water. Use a soft cloth or sponge to gently wipe the affected areas gently, ensuring not to oversaturate the wood as excess moisture can cause further damage. For stubborn mildew, a mixture of water and baking soda can act as a natural abrasive to remove buildup. Once the mildew is cleaned, dry the furniture thoroughly with a clean towel and leave it in a well-ventilated area to ensure all moisture evaporates.
Finally, consider applying a wood polish or protective wax to restore the furniture’s shine and protect it from future mildew growth. Regular maintenance and moisture control are key to preserving the integrity of wood furniture.