Paver patios sink almost entirely because of inadequate base preparation and compaction. A proper compacted gravel base, correct depth, edge restraints, and drainage are what keep pavers level. The pavers themselves are rarely the problem.
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The base is everything
When a paver patio sinks, shifts, or develops low spots, the cause is almost always underneath the pavers, not the pavers themselves. A properly built patio sits on several inches of compacted gravel base, laid and compacted in layers.
Skimping on base depth or skipping compaction is a common way to cut cost on a bid, and it is invisible until the patio starts to settle a year or two later.
What proper installation looks like
A quality hardscape contractor builds from the ground up in a predictable way. Ask about each of these steps when comparing bids.
- Excavation to the correct depth
- A compacted gravel base built up in layers
- A leveling sand or bedding layer
- Edge restraints to hold the pavers in place
- Slope for drainage away from the home
Do not forget drainage
Even a perfectly compacted base can fail if water pools under or around the patio. Proper slope and drainage protect both the patio and your home’s foundation.
Homeowner checklist
- Ask about excavation depth and base thickness
- Confirm the base is compacted in layers
- Confirm edge restraints are included
- Confirm the patio slopes for drainage
- Get the workmanship warranty in writing
Frequently asked
How long should a paver patio last?
A properly installed paver patio can last decades. When one fails early, it is almost always due to poor base preparation or drainage rather than the pavers themselves.
Can a sinking paver patio be fixed?
Localized settling can sometimes be repaired by lifting the pavers and correcting the base, but widespread sinking often means the base was never built correctly and may need to be redone.
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