Hardscaping in New Jersey That Does Not Sink

What we build, and what we build it on

Paver patios and paver driveways are the two builds that put the most stress on a base. Both need a base that holds shape under weight and moving water. Walkways and steps tie the yard together, and pool decks and coping sit on ground that stays wet all season.

• Paver patios built on compacted DGA so the surface stays flat and the edges hold.
• Paver driveways with a base thick enough for vehicle weight and a paver driveway apron that meets the street without settling.
• Walkways and steps that keep their line through freeze and thaw.
• Pool decks and coping that handle constant water without washing out the sand below.
• Retaining walls that hold back soil on sloped North Jersey lots.
• Grading and drainage that moves water away before it reaches the base.
• Outdoor kitchens and fire pits set on a base that will not shift under their weight.

How it goes from here

You get a written price before any work starts. That price covers the base, the stone, the edge restraint and the labor. If the dig finds something the price did not cover, you hear about it before the crew changes course.

The sequence is laid out on the process page, and the cost guide explains what drives the number. Read both, then ask for a price in writing on your project.

Where the money goes

At the Jersey Shore, sand and a high water table put the cost into compaction and edge restraint. Loose sand needs more passes with the plate compactor, and wet ground needs drainage before the base goes in. North Jersey adds frost depth and road salt, which means a deeper base and edge restraint that resists salt damage.

The written price reflects those conditions. A low number on paper usually means the base was not figured honestly.

What a high water table changes

Sand does not hold its shape. When water rises under a patio, the sand grains shift and the pavers above them settle unevenly. The edges fail first because they have no support from the side, so the outer pavers tip and spread outward.

At the Jersey Shore and across the Pine Barrens, the water table sits close to the surface. After a storm, that water has nowhere to go but up into the base. In North Jersey and Bergen County, the issue is different: clay holds water and shale shifts with frost.

In Central Jersey and the Philadelphia suburbs, older fill lots settle under their own weight. The fix in every region is the same. Compact the DGA in lifts, tie the edge into the ground, and give water a path out before it reaches the base.

Compacted in lifts, held at the edge

DGA is the local name for the base material, specified by NJDOT. It is spread in lifts, meaning thin layers, and each layer is compacted before the next goes on. On sand, the DGA locks the sand down and spreads the load so the surface does not sink.

Edge restraint is what keeps pavers from sliding sideways. Without it, the outer row spreads and the whole field follows. The restraint is set into the compacted base, not just placed against the pavers.

Pool decks get a setting bed that drains, so water does not sit under the stone. Stoop floors and screened porch floors use the same detail. Season windows matter. Excavation and base work run from roughly March to December. Frozen ground stops compaction in the coldest weeks, and wet shore ground stalls it after storms.