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Interlocking pavers can last 50 years or more, but you’ll need to keep up with some basic routine maintenance to get the most out of them. This includes regularly applying a sealant and keeping up with any weeds that start to grow within them. Avoid metal shovels in the winter, and only salt the pavers ahead of snow and ice if the pavers are part of a necessary walking path—salt and other chemical-based de-icers can take a toll on your pavers over time.

If you wish to break up a cracked or broken paver for removal, you can use a hammer or mallet and a chisel to fragment the paver. As you’re working, be careful not to disturb surrounding pavers; the key is to work slowly and steadily and remove the broken pieces gently. You should also wear a mask and goggles to ensure that no dust gets into your eyes, nose, or mouth as you work.

The maximum lippage or height difference between interlocking pavers is 1/8 inch or 3 millimeters. Any higher than that could become a hazard or impact the area’s ability to drain water properly. Some building codes or types of interlocking pavers could require even less of a height difference, so check with your local regulations and the manufacturer to clarify.

Interlocking pavers offer a number of advantages over regular pavers. For instance, they’re more durable, more resistant to shifting, and easier to repair. There are also permeable options that allow for drainage. However, interlocking pavers are more often more expensive than regular pavers and are prone to growing weeds over time.