How to Clean a Slate Fireplace Surround

Updated February 21, 2017

A slate tile surround adds an elegant and natural appearance to a fireplace. The slate, a stone product, requires certain cleaning tools and procedures. Stone has a porous surface, and acidic agents can erode the slate, leaving the tile discoloured and etched. A mild soap, and products made especially for stone surfaces, clean the slate tile and grout without sacrificing the beauty of the stone.

Spray a dust rag with a stone-cleaning product. Wipe dust and dirt from the slate tile surround with the dust rag. Fold the dust rag to expose a clean area as you wipe.

Fill a small bucket with warm water and 1 tsp mild dish soap. Wet a sponge with the mixture and wipe it over the slate tile. Start at the top of the tile on the fireplace and work your way down.

Discard the soapy water and fill the bucket with clean, warm water. Rinse the slate tile with the sponge and water. Dry the slate with a clean microfiber cloth.

Pour 1 to 2 tbsp of tile sealant onto a soft cloth. Wipe the cloth over the slate tile. Wait 30 minutes and apply a second coat. The sealant adds a protective barrier for the stone.

Apply 2 tbsp of mineral oil onto a clean cloth. Wipe the mineral oil over the tile after the second coat of sealant has dried. Mineral oil adds shine to the slate tile.


Avoid using any type of acid product on slate tile. Do not use abrasive cleaning tools on slate tile.

Things You'll Need

  • Dust rag
  • Stone-cleaning spray
  • Bucket
  • 1 tsp mild dish soap
  • Sponge
  • Microfiber cloth
  • Cloths
  • Stone tile sealant
  • 2 tbsp mineral oil
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About the Author

Constance Barker, located in the hills of southern Ohio, is the owner and writer of several financial, credit report and travel websites. She started writing in 1999 for private clients and began creating website content in 2004. She gained expertise in home improvement after she and her husband built their home themselves.