How to Clean Stone Fireplace Hearths

Written by hillary marshall | 13/05/2017
How to Clean Stone Fireplace Hearths
Cleaning your hearth regularly helps remove soot from the grout. (old hearth image by bgroovy2 from

Cleaning your fireplace hearth may seem like a straightforward task, but fireplaces have stone and grout that can accumulate and hold onto dirt, dust and grime. If you don't clean your fireplace hearth with an actual cleanser, the grout will become permanently discoloured, detracting from the appearance. Fortunately, you can mix a cleansing solution for your fireplace hearth with a few basic ingredients found in your local grocery or chemist.

Remove loose dirt, dust and debris from the hearth of your fireplace with a duster. Vacuum with a soft-bristle attachment to get fine particles. Cover the floor surrounding your hearth with a trap, sheet or dropcloth.

Mix 28.4gr. of dish soap and 28.4gr. of table salt together in a bucket. Add room temperature water to the bucket little by little and stir with a plastic spatula or mixing spoon. Keep adding water until the mix has a creamy consistency.

Rub the cream cleanser onto the surface of the fireplace hearth, using an old wash rag. Cover the entire surface, stones and grout. Allow the cream cleanser to dry on the fireplace hearth for 10 to 15 minutes.

Scrub the cleanser away, using a moistened stiff nylon-bristle brush.

Fill another bucket with lukewarm water. Submerge a clean rag into the bucket and wring it out to remove excess moisture. Wipe away any residue left behind by the cleanser and allow the hearth to air-dry.

Things you need

  • Duster
  • Vacuum with attachments
  • Tarp
  • Dish soap
  • Table salt
  • Plastic spatula or mixing spoon
  • Buckets
  • Nylon-bristle brush
  • Old rags

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