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The lifespan of pavers varies based on many factors. Material is the key component, with concrete, stone, and brick pavers lasting up to 100 years, while clay pavers usually only last around 25 years. To maximize your pavers’ lifespan, you should keep your paver patio or walkway clean, add sealant every few years, and keep the joints sealed with polymeric sand as needed.

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.

If you’re installing pavers over an existing concrete slab, you don’t need to affix the majority of the pavers, but you should use a polyurethane-based adhesive on the border pavers. Polyurethane will expand and contract with temperature changes, which will help keep the pavers firmly in place throughout the year. It’s also strong enough to stand up to foot traffic. You’ll use polymeric sand between the non-border pavers to keep them in place and prevent shifting.

Maintaining a driveway depends on the material your driveway is made of. Concrete and asphalt should be sealed to protect against water and freeze-thaw cycles. Cracks and expansion joints should be filled with a flexible polyurethane caulk or asphalt sealer. Before you apply a sealant to your driveway, consider pressure washing the surface. It will take off any loose sealant and any grime that might have caused a stain. Sealing over dirt and stains will trap it under the sealer.

If you live in colder climates, consider using sand rather than salt to de-ice. Sand helps melt the snow and ice without speeding up the freezing and unthawing process of your driveway, which helps prevent cracks from forming from the constant fluctuation of temperatures.