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You can walk on newly sealed pavers as long as they’ve had enough time to dry and cure—typically after 24 hours for patios and walkways. Even so, don’t rush it. Humidity, temperature, and the type of sealant you use can stretch that window up to 72 hours. Rushing it can leave footprints or even damage the finish, especially if the surface hasn’t fully hardened. For driveways, wait at least three full days before parking or driving over them. Always check your sealant label for the most accurate timeline, since not all products cure the same way.

No, paver removal isn't needed to redo polymeric sand in a walkway or patio. Sand can be packed into existing joints as long as you're not dealing with intrusive tree roots or other severe paver problems that require you to pry up your pavers.

Yes, placing polymeric sand between pavers is essential for keeping them securely in place. However, sand alone cannot secure pavers. A well-made compacted paver bed that holds pavers should be at least 6 inches deep to keep pavers secure.

The most common causes of sunken pavers are poor base preparation and insufficient compaction. The problem could also be how your pavers were installed. If the soil beneath your patio or walkway wasn't compacted, it will pull pavers down as it settles. Additionally, using bare soil instead of making a paver bed with compacted gravel and sand can cause sinking over time. To fix sunken pavers, consider recompacting the base and addressing any drainage or erosion issues in the area.