How to Remove Soot From a Brick Fireplace

Remove soot from a brick fireplace face with mild dish soap.
Remove soot from a brick fireplace face with mild dish soap. (Image: Living Room image by Dawn from

As wood burns, smoke releases through the chimney, but soot can seep onto a brick fireplace face and stick there because of its tiny crooks and crevices, creating black marks on the stone. Cleaning soot regularly ensures a cleaner looking fireplace.

Things You'll Need

  • Liquid soap
  • Salt
  • Sponge
  • Stiff-bristle brush
  • Spray bottle
  • All-purpose cleaner
  • Bucket
  • Cloth
  • Trisodium phosphate

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Table Salt

Mix 1 oz. of liquid soap with 1 oz. table salt. Place drops of water into the mixture until it forms a thick cream.

Spread the salt mixture over the soot on the brick with a sponge. Allow the mixture to remain on the brick for 10 minutes.

Scrub the brick with a wet, stiff bristle brush, removing the soot stains.

All-Purpose Cleaner

Spray water onto the soot on the brick fireplace with a spray bottle.

Mix 1/4 cup all purpose cleaner into a gallon of water.

Dip a stiff bristle brush into the cleaning mixture and scrub the soot stains.

Wet a clean cloth and wipe over the brick, removing the soot and soapy residue from the brick.

Trisodium Phosphate

Fill a gallon bucket with hot water. Pour 1/2 cup of trisodium phosphate into the water and stir to dissolve.

Wet a stiff bristle brush with the cleaning mixture. Apply the mixture to the soot on the brick, scrubbing the area clean.

Rinse the soot and cleaning mixture from the brick with a sponge and warm water. This is an acid solution and can be harmful to skin and other objects.

Tips & Warnings

  • Wear a painter's mask, eye protection and rubber gloves when working with trisodium phosphate, as it can burn the skin.
  • Avoid using harsh chemicals on brick as it could damage the surface.


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