Injection repairs for leaking cracks in poured walls, plus a careful look at cracks that may be caused by slope pressure or settling in Rockaway homes.
Many Rockaway Township homes built in the second half of the twentieth century have poured concrete foundations, and a leaking crack in one of those walls is often a straightforward repair. The contractor seals the face of the crack, sets small ports along it, and injects polyurethane or epoxy that fills the crack through the full thickness of the wall. On hillside lots, where saturated soil and water sitting on the bedrock press hard against the uphill wall, a crack on that side is often the first place you see water during spring thaw.
Freeze and thaw is part of the picture too. Rockaway sits at higher elevation than towns to the east, and winters bring repeated cycles of freezing and melting that can work at small cracks, especially where soil stays wet against the wall. A crack that only dampened the floor years ago may start running after a few hard winters. Marking each end of a crack with a pencil and the date, then checking it through the season, gives your contractor useful information about whether it is moving. Keep notes on when it gets wet, too, since timing points to the source.
Older homes in Rockaway Borough are more likely to have block or fieldstone foundations, where injection is not the usual answer because water can travel through hollow cores or loose mortar. In those houses, leaks are typically handled with drainage or exterior work. Any home with a horizontal crack, a wall bowing inward, or stair step cracking in block should be looked at by a structural engineer before repairs, since slope pressure and settlement call for reinforcement rather than simple sealing. A sealed crack on a moving wall will simply open again, so the cause has to be dealt with first.
On a slope, groundwater and runoff collect against the uphill wall and stay there, especially where shallow rock keeps water from draining down. That constant pressure pushes water through any crack on that side.
Injection is made for poured concrete. Fieldstone walls leak through mortar joints and gaps between stones, so repointing, an interior drain with a wall membrane, or exterior work is usually the approach instead.
A thin vertical crack that only weeps in very wet weather is usually a water issue rather than a structural one, and injection can stop it. Track it for growth, and get it checked if it widens, shifts or turns horizontal.
The borough has 8 repetitive loss and 1 severe repetitive loss flood properties in the Rockaway River floodplain, none of them mitigated yet, per the 2025 county plan.
morriscountynj.govBurton Lane sees storms overwhelm drainage and inundate homes, Ogden and Drake Avenue has a 54 inch pipe that backflows, and the Fairview and Hill Street neighborhoods lack stormwater infrastructure.
morriscountynj.govBorough properties have filed 84 flood insurance loss claims, with about $1.46 million paid.
morriscountynj.govA perimeter drain and sump system built for Rockaway basements, whether the water is rising near the river in the borough or running off rock in the township.
Sealing the outside of the foundation and adding footing drains, planned around the rock, slopes and septic systems found across Rockaway.
Sealing damp crawl spaces under Rockaway additions, lake cottages and older homes against ground moisture and humid summer air.
Pumping out, drying and clearing damaged materials after a storm, pump failure or backup in a Rockaway Borough or Rockaway Township basement.