Home » How do you Remove mold from wood floors? [Surface and Ingrained]

How do you Remove mold from wood floors? [Surface and Ingrained]

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When we see mold on our wood floors, we need to react fast. Process is pretty simple but basic knowledge is needed.

How to Remove Mold from Wood floors

How do you remove mold from wood floors? It depends if your mold on wood floors is surface or ingrained. With surface mold best option is to use specialized cleaner. If your mold is ingrained, a lot more steps are needed. In depends on the damage but drying, sanding, and cutting your floors will be required and done in this process.

I provided all step by step instructions for you to get familiarized with the process.

Also I am sure you would be interested in reading my article on how to clean your old hardwood floors without refinishing and how to Remove White and Dark Stains From Hardwood floors. 

Removing mold from wood floors

It is a widespread problem for especially new house owners. Today buildings are constructed in fast pace and airtight. Moisture doesn’t have appropriate time to dry out and escape. When moisture can’t escape mold occurs. It is not a pleasant situation, and it may cause many allergic reactions if not reacted fast.

If mold is in a small area, then you can remove it yourself, but if the situation is worse and molds are covering a large area of the hardwood floors, I recommend calling professionals. They will bring all the advanced equipment to remove it from your house.

If the problem is not that big, and you don’t want to spend hundreds of dollars, you can follow these simple instructions below.

How to Remove Surface Mold from Wood Floors

Surface Mold as the name suggests affects the surface of the wooden floors. It usually leaves a stain on the floor. Removing it is pretty straightforward just follow below steps and safety measures.

1. Protect yourself

Don’t try to fix mold on your hardwood floors if you don’t have proper protection. Mold causes allergies and other health issues.

For Small Area

  • Gloves
  • Safety Glasses

For Large Area

  • N-96 Mask
  • Gloves
  • Safety Glasses

2. Select Proper Mold Cleaner and remove it

There are few cleaner who can do job well. This are my personal three best options. Later on I will recommend also alternative methods as well.

  1. Mold Armor
  2. Concrobium 25326
  3. Chlorine bleach

With all three options it is adviced to leave sollution on the mold for 10 minutes, then take a rag and wipe it off from the wood. If using bleach, use some old rag and throw it away after job is done. Bleach contains really harsh chemicals and it’s not safe for animals.

Lucky there are some Cleaners safe for us and animals, very effective and without harsh chemicals.

Mold Armor

Mold Armor is really a beast. It health wise something between Bleach and Concrobium spray. Let’s be honest – you need to kill all the mold on your wood floor instantly. If they get lighter because of harsh chemicals you will refinish them after but at least you removed it completely. Worst thing would be, mold penetrating threw your floors and becoming ingrained type.


  • Mold armor claims that it is twice as strong as bestselling competitor.
  • Easy to use – spray it on your mold, leave 5-10 minutes and wipe off sollution.


  • It contains some harsh chemicals otherwise it wouldn’t be that strong. I would try Concrobium version form my floors before mold armor. If you have shower mold or some other non wood related, this is perfect option for you.

CLICK HERE and read Amazon reviews and costumer testimonials about this product.

Concrobium 25326 Mold Control Spray

I find Concrobium cleaner best natural and effective way for dealing with surface mold. Even if it is not that strong as Armor mold, It doesn’t contain harsh chemicals or bleach and gets job donr. Patented sollution will help you remove mold and also prevent it from regrowing. It is super easy to use as well.

  1. You spray on the mold infected surface
  2. Let it dry for 10 minutes
  3. Clean the surface with a rag.

This process will clear all the mold and leave an invisible shield to prevent it from coming back.

PROS about the cleaner

  • Eliminates Molds, mildew, and stops them from coming back
  • Finishes mold spores completely
  • No bleach or harsh chemicals
  • EPA-registered formula
  • Safe to use on a large area
  • You can clean around 100 sq. feet with one bottle
  • Prevents regrowth
  • Super easy to use

CLICK HERE to read reviews from costumers who bought it on Amazon and already use it.

Alternative Methods Cleaning Surface Mold

1. Using Vinegar

Vinegar is a mild acid that will generally kill 82% of mold species. Now adding Baking Soda and mixing with the vinegar can usually kill all off the surface mold. Make a spray bottle and than spray like you would with above paid cleaner version.

2. 3% Hydrogen Peroxide

Take 3% hydrogen peroxide pour it in to a spray bottle. You can apply / spray it same as with other cleaaners directly to your floors. Be careful – to to combine or mix it with Vinegar. Mixing it together would create corrosive substance known as peracetic acid who would definitely ruin your precious hardwood floors.

3. Using Borax with Water

Mix one cup of Borax and one cup of water in a spray bottle and spray that mixture on mold infected place. Borax is natural, and it has antimicrobial quality.

4. Tea tree Oil

Tea tree oil can be effective natural cleaning sollution as well. You need as with most of cleaners a spray bottle and distilled water.

Take 1 cup of water and add one teaspoon of tea tree oil, mix it up, and your mold killer is ready.

How to Remove Ingrained Mold From Wood Floors

Ingrained mold penetrates the wood and causes much more significant, harder, and expensive to remove damage. In most cases, there are professionals needed to restore your floors in good shape. Sometimes the mold is very deep, and you will need to change part of our floors. They are too damaged to be safe, and you will prevent mold from spreading as well.

With ingrained mold this steps should be followed:

1. Testing Depth

The first thing you want to do before removing ingrained mold is to test the affected area because sometimes you don’t know how deep did mold penetrate in to the wood. 

To do this, use a sharp tool and press it into the affected area. If the sharp tool is going deep into the wood, and it feels soft, then the problem is not that simple. 

If Wood feels spongy, then it is rotten and can’t be saved.

2. Dry your Wood Floors

Mold spread when moisture is present so we will need to get rid of it before going forward.

  1. Bring a drying fan or fans and direct them toward the infected area.
  2. Wear a mask when you are in the space where mold is present.
  3. Turn your fans on and keep them on for several hours.
  4. Keep all of the windows open and put a box fan, like this on Amazon on one of the windows and face it to the outside of a window and turn it on. It will keep throwing mold infected air outside of your house.
This is is necessary step when removing ingrained mold

3. Remove Upper Layer

To remove the top layer, you will need the following tools.

The first start with 100 grit sandpaper then switch to 220 grit sandpaper to eliminate the mold. Make sure you sand the affected area in a circular motion. When mold is removed, use 220 grit to make the area smooth.

4. Spray Cleaner

Even id you have removed the mold affected area thoroughly, there are still some mold spores left on the affected area. You can’t see them with your eyes. 

Mold can spread again from this area, so what you need to do is spray a cleaner that I mentioned before or other similar solution.

5. Cut Out Wooden floor that can’t be saved

If mold spread deeply and already rotten the wood and you can’t save that part, cut it out. After replace it with new part of hardwood floors

6. Restore Wood Color

When we remove ingrained mold from your wooden floor, it will leave a stain, which will make the floor look uneven. All you have to do is to buy a Wood finish that matches the color of your original floor color.

7. Use Vacuum

Use a vacuum to clean your floors after. Make sure you toss immediately the infected parts in a trash bag.

After vacuuming, clean your vacuum with mold cleaner spray and make sure there is no mold infected part or tools left on the floor.

How to Prevent Mold in your home?

If you are a homeowner, who is currently dealing with mold or you want to avoid it altogether, let’s run through the six most effective ways to make sure mold will never become a problem for you or your family.

1. Understand Where Mold Loves to Grow

As you already know, mold loves moisture. It will grow in any environment with a humidity level of over 55%. Homes in a humid climate or near water are more vulnerable .

Major moisture culprits are

  • Wet Clothes Left Around the house
  • Humidifier
  • Condensation

Condensation develops on hard surfaces like windows, pipes and cold weather, so make sure to clean up these wet spots to prevent mold growth.

2. Do a Mold Check-In High-Risk Places

Do a quarterly mold check-in high-risk places in your home. Vulnerable places are:

  • Bathroom
  • Kitchen 
  • Basement
  • Inside your walls 
  • Even under cabinets 

It can grow anywhere, including wood, drywall, ceiling, tiles, and even upholstery.

3. Ventilate Your Home

Many home heating and cooling systems don’t ventilate your air. They are designed for recycling the air in your home, so toxic mold-infested air stays in your house.

Ventilation technology is required in most new homes, and they filter out mold spores and bring clean air into your home.

  • If you don’t have any HRV ventilation system consider investing, it is not that expensive and definitely worth the price.

4. Remove Carpeting

Carpet can trap moisture and promote mold growth. Removing it from

  • Basement 
  • Kitchen 
  • Bathrooms

Be sure to dispose of any carpet That’s been wet for more than 24 hours.

5. Get A Dehumidifier 

A dehumidifier works to reduce your home’s humidity by drawing moisture out of the air and usually into the bucket. They come in a variety of sizes and price points, but you must invest in the right size unit for your space.

6. Clean And Disinfect Any Mold Immediately 

Follow Steps I mentioned above to get rid of mold immediately.

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