Homeowner Tips: Protecting Your Countertops

Your countertops are an important part of your home and if properly cared for they can last a long time.  Some natural stones, such as granite and marble, are porous and therefore vulnerable to stains and moisture. Sealing these surfaces can help reduce damage from simple everyday use.



Not all granite surfaces will need to be sealed as some types of granite do not absorb moisture as easily as others.  If your granite is less prone to absorption, sealing it will make it appear slightly hazy. A quick test is all you need to determine if your granite needs to be sealed:

Take a damp paper towel and lay it on a small area of your countertop.  Give it about 5-10 minutes then check underneath the towel.  If there is a darkened area, your granite is absorbent and sealing it may prolong its lifespan.


  1. Spray the entire surface evenly with a cleaning agent, and then wipe it down so the counter is completely dry.
  2. Many sealers come in spray bottles, this makes for easier application.   Spray the sealer uniformly on the countertop.
  3. Let the sealer absorb into the stone for approximately 20 to 25 minutes.
  4. When the sealer is almost dry, apply another light layer, and then wipe down with a clean, dry rag.

Allow about 2 hours to pass, and then apply a second application using the steps listed above.  The amount of time allowed to pass may vary with the sealer used so consult your product for more specific instructions.



Unlike granite, all marble countertops should be sealed.  The steps in sealing marble are very similar to the steps listed above for granite.


  • Wash your marble countertops with warm, soapy water and a clean rag; be sure you remove any residue left from cooking and everyday use.  Rinse with clean water, and dry thoroughly.
  • Once your marble is completely dry, spray the sealer over the entire countertop.  Be sure to apply sealer to every inch and every corner for best results.
  • Allow the sealer to sit on the marble for about 15-20 minutes.
  • Wipe down the countertops with a clean rag after the appropriate amount of time has passed.  To maximize the protection of the sealant, a second application is recommended.

Properly and regularly maintaining the seal on your natural stone countertops is an easy way to prolong their life.  This small step can make a large difference in maintaining this beautiful part of your home.