How to Fix Uneven Settling Patio Pavers

Patios are constant works in progress, and settling pavers are simply part of the lifecycle of a dry-laid stone surface. Over time, water runoff and heavy foot traffic can shift the sub-base, creating small valleys where puddles form or corners that become tripping hazards. The good news is that you don't need heavy equipment to fix these issues; you only need to reset the affected stones and reset the level of the foundation layer. Done well, this repair makes the patio look seamless and prevents further erosion of the base. The key is in the base layer preparation; if you just add dirt, the pavers will sink again next season. By properly compacting your sand and matching the height of your neighboring stones, you create a stable foundation that will hold up for years to come.

1. Pry Up the Sunken Pavers. Use a screwdriver or a specialized paver extraction tool to pry up the sunken stones. Start with the most depressed paver and work outward until you reach stable, level ground.
2. Strip Away Old Sand. Scoop out the existing bedding sand until you hit the solid, compacted base layer below. Inspect the area for roots or debris that caused the initial settling.
3. Compact the New Base. Add fresh leveling sand to the hole until it sits about one inch below the desired final height. Use a block of wood to tamp down the sand firmly so it does not settle again.
4. Set Stones Flush. Place the pavers back into the opening one by one. Use a rubber mallet to gently tap them into position until they are flush with the surrounding surface.
5. Lock in Polymeric Sand. Pour fine polymeric sand over the joints of the reset pavers. Use a push broom to sweep the sand into all the gaps until they are filled to the top.
6. Activate the Binding Agent. Use a garden hose with a fine mist setting to lightly dampen the sand. This activates the binding agent in the sand and locks the pavers in place.