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The frequency for sealing granite countertops depends on several factors, including the type of sealant used, the color of the granite, and how heavily the countertops are used. As a general guideline, resealing is often recommended every 12 to 18 months, but some sources suggest it could be as often as every few months or at least once a year.

The type of sealant is a major factor: water-based sealants may need reapplication every six months to a year, while more durable solvent-based sealants can last for five to 10 years. Additionally, factors like heavy kitchen traffic, frequent use of acidic cleaners, and lighter granite colors may require more frequent sealing to prevent staining.

To determine if your countertops need resealing, you can perform a simple water test. Place a few drops of water or a wet paper towel on an inconspicuous area of the granite. After 10 to 15 minutes, check the spot. If the water has beaded up, the seal is still intact. If the water has been absorbed and darkened the stone, it's time to apply a new coat of sealant. You can choose to seal the granite yourself or hire a professional to ensure it's done correctly.

Terrazzo is incredibly durable and resistant. It often lasts well over 75 years, as long as you take proper care of it.

The resin should be periodically sealed to help prevent it from wearing down or becoming porous. Very sharp or very hot objects can damage the resin surface, and there’s no way to fully repair it if that happens, so we recommend treating the counters well.

While porcelain countertops are durable and don’t chip easily once installed, they aren’t chip-proof. If they’re subject to blunt force, chips, cracks, or other damage can occur. Unless you’re very confident in your installation abilities, hiring a local countertop installation company will reduce the risk of damage.