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Granite countertops are a popular choice for their beauty, durability, and stain resistance. However, to maintain their aesthetic and structural integrity, regular cleaning and sealing are required. If your granite surfaces have become dull, a thorough cleaning is essential before applying any sealant. Here’s a step-by-step guide to how to properly clean your granite countertops before sealing.

Luxurious house with granite installed

Supplies You’ll Need

  • Kitchen sponges
  • Mild detergent
  • Baking soda
  • Soft cloths
  • Razorblades
  • Isopropyl alcohol
  • Gloves
  • Spray bottle.

Steps to Follow

Remove Loose Debris – First, remove any items on the granite surface and wipe down the area with a soft cloth to get rid of any loose dirt, dust, or crumbs.

Scrub the Surface – Contrary to popular belief, you don’t need abrasive cleaners like bleach or ammonia. A mixture of mild detergent and warm water is usually sufficient. Using a sponge, scrub in various directions, concentrating on stubborn stains. Be careful not to scratch the granite.

Remove Harsh Stains

For persistent stains, create a paste using baking soda and water. Apply the paste to the stain with a soft cloth, scrubbing gently, then rinse thoroughly, and repeat if needed. For particularly stubborn stains, try scraping off the gunk with a razor blade, being careful not to scratch the surface. If the stains did not disappear, please contact Rock Solid to be put in contact with a reputable Stone Restoration expert.

Rinse Thoroughly

Using clean cloths or sponges, rinse the granite thoroughly. It’s important to remove all soap residue as any lingering soap can interfere with the effectiveness of the sealant.

Disinfect the Surface

In a spray bottle, mix a 50/50 solution of water and isopropyl alcohol. Spray the entire surface and let it sit for 5 minutes.

Dry the Surface

Use a microfiber towel to dry the granite surface completely. Make sure the stone is fully dry before proceeding to seal it, as moisture can also affect the sealing process.


Before moving on to sealing, closely inspect the granite to ensure that it’s clean, stain-free, and fully dry. If you notice any residual stains or soiling, repeat the cleaning process.

Who to Call

If you have any questions about cleaning or sealing your granite countertops, check with the experts here at Rock Solid Custom Granite. We are your go-to source for top quality stone countertops in the Denver Metro and Four Corners areas, with locations in Littleton and Durango. We take pride in offering exceptional goods and services tailored to your budget and your individual needs. Our end-to-end services include in-house stone fabrication and installation, ensuring a seamless and simplified remodeling experience. From the moment you choose your stone to the final installation, we’re with you every step of the way. You’re even invited to visit our shop to monitor your project’s progress.

To learn more about our company and our products, or to schedule a consultation, contact us via our website or gives us a call. In Littleton (Denver Metro) dial 720-800-4403, and in Durango (Four Corners) dial 970-459-5982.