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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.

The timeline to install countertops largely depends on the materials and the job size. Installing granite countertops takes anywhere from two to seven hours, though complex designs can pass the eight hour mark. Average-sized quartz countertops take two to five hours to install, though most pros will recommend a 24-hour settling period. Marble, on the other hand, is finicky and can take up to two whole days to install. No matter how you slice it, however, a professional is going to complete the job much quicker than an amateur.

Avoid using harsh, gritty, or abrasive cleaners and sponges on Formica countertops. This includes steel wool, scouring pads, and strongly alkaline or acidic cleaning products like chlorine bleach, oven cleaner, drain cleaner, furniture polish, or vinegar. These can compromise the surface, leading to scuffs, discoloration, and other damage that will reduce the countertop's longevity. Additionally, never place hot items, such as pots and pans directly from the oven or stovetop, onto the laminate surface, as the high heat can cause it to scorch.

Installing new kitchen countertops costs $1,850 to $4,450, with an average price of $3,140. Some materials, like marble and granite, are more expensive than others. Additionally, the size of the countertop impacts the overall price. Labor accounts for 10% to 20% of the overall project cost. Add-ons, like edging and corner treatments, also increase the cost.