How to Remove Mold Under a Sink

6 March 2017
 Categories: , Blog


If you notice a musky smell around your sink, there is likely mold underneath it. Mold thrives in dark, damp environment, which makes the wooden area of sinks prone to it.

Mold occurs because of plumbing issues, roof leaks, or high humidity, and it can pose a health hazard You should remedy moderate mold right away using the following tips. 

Prepare to Work

For this project, you need:

  • rubber work gloves
  • breathing mask
  • rags
  • fans or space heaters
  • spray bottle
  • bucket
  • tea tree oil
  • grape fruit seed extract
  • vinegar
  • black trash bags
  • scrub brushes
  • non-ammonia liquid dish soap
  • chlorine bleach or oxygen bleach

Keep doors and windows closed to prevent spores spreading, and put on a breathing mask. Remove damaged items from under the sink, and discard them in black trash bags. Set the bags outside.

Absorb as much water as possible with rags. Attempt to dry non-damaged items that are just damp with the fan or space heater. Throw away anything that doesn't dry in two days. Keep the doors of the sink open , and set another fan or space heater in front of it to help dry it.

Try Natural Products

Locate the source of the moisture source, which is commonly a leaky pipe, or roof, and fix it. Attempt to remove the mold with natural products.

Combine two cups of water with two teaspoons of tea tree oil in a spray bottle. Shake the spray bottle to mix the ingredients, then mist the mold with the mixture. Let the mixture dry. It usually take two days for the mold to start disappearing, so you may want to turn off the sink's water supply to prevent it from being turned on.

Pour some vinegar and warm water a spray bottle with water. Shake the bottle, and moisten the molded area. Let the mixture stand several hours.

Mix warm water and twenty-five drops of grapefruit seed extract in a spray bottle. Shake well, and spray the area with the mixture. This will take several days to dry.

Clean Away Mold With Soap

Mix a small amount of non-ammonia dish soap in a bucket filled with warm water. Scrub the mold, and change brushes as needed to avoid spreading spores.

Open a window to ventilate when using bleach. Mix a cup of chlorine bleach in a gallon of water. Don't mix bleach with other household cleaners, or it will produce toxic fumes.

Dip a scrub brush in the mixture, and scrub the whole sink area to disinfect. Use oxygen bleach for stainless steel sink tops. Don't rinse the bleach. Let it set and dry naturally.  

Prevent under the sink mold by setting up a dehumidifier, and clean up moisture immediately. If you don't trust your skill, the mold still won't disappear, or the molded area is large, check out and contact a mold remediation service.