Get matched with top countertop and backsplash pros in Sidney, NY

Yes, onyx countertops can scratch easily—especially if they’re not adequately sealed. But with the proper maintenance (which includes re-sealing the countertops to protect them from damage), you can prevent your onyx countertops from scratching and repair any damage quickly to prevent it from worsening.

You can cut countertops without chipping by using your saw correctly and having a new fine-toothed blade. You can also put masking tape on the front of the countertop material across the cut line and cut from front to back. However, it is very hard to cut countertops without chipping them, especially if they are made of stone or more fragile materials like laminate. The best advice is to know how to use the equipment, use the correct cutting method for the material, cut from back to front, move slowly, and practice on scrap material first.

The best tool for cutting countertops depends on the type of countertop material. For some softer materials, like laminate (Formica) and butcher block, you can use a hand saw, but most experts recommend power saws like circular saws, since these make the job go faster and easier and give more even results. However, power saws and circular saws are dangerous if used incorrectly, and they can be so powerful that they damage or chip laminate, stone, and other types of countertops. For this reason, you should take safety precautions and use best practices to prevent damage.

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.