Coastal and pilings
Salt-air concrete and rebar repair
Tier C · 20 towns covered
Spalling on piers, columns, and grade beams where salt air has gotten to the reinforcing steel.
This comes up often enough around here that most local contractors have a settled way of handling it.
What homeowners tend to describe
- Hollow sound when the surface is tapped
- Reinforcing steel visible through the surface
- Rust staining running down a column or pier
- Concrete flaking or breaking away in sheets
What a contractor will do
Salt reaches the reinforcing steel, the steel rusts and expands, and the expansion pushes the concrete off. Repair means removing everything unsound, treating the steel, and rebuilding the section with a mix that resists chloride.
$2,000 – $15,000 — typical range, not a quote. What your home needs can only be settled by a registered contractor who comes out and looks at it.
Want a number before you decide?
Write down what you've noticed. We'll route it to registered local contractors and step out of the way.
Tell us what's happening →Coverage
Towns we cover for this
Only the areas where this work actually applies.
Bayfront and lagoon
Dredge-and-fill lagoon communities at low elevation with tidal influence on groundwater.
Long Beach Island
Salt air, timber and concrete pilings, and housing stock split sharply between pre- and post-Sandy.