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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.

Any surface, including a waterfall countertop, can last decades based on a few things. First is the chosen material. For instance, quartz and granite are more durable and long-lasting than marble or concrete. Proper care also plays a key role. Regular cleaning and sealing, if required, will help any counter resist stains and damage over time.

For most homeowners, quartz and quartzite countertops are similar in price. The average quartz countertop installation costs $80 to $220 per square foot, while quartz countertops cost $70 to $200 per square foot. Of course, there are outliers, like if you choose a highly customized, rare natural stone with high-end finishes.

Silestone® is heat-resistant, so it can handle moderately high temperatures for a short period of time. That said, exposure to high heat can cause serious damage. You should never take a hot pan off the stove and place it directly on your countertop. Temperatures above 300 degrees Fahrenheit can leave marks or discoloration on the surface. Instead, use a trivet.