When a dock sags, a boat lift tilts, or a patio sinks near the water in Naples, the fix is usually to carry the load down to firm soil with helical piers or to fill the voids underneath.
866-398-9323Licensed seawall specialists — FL · GA · SC
Seawall Repairs by Solid Foundations provides marine foundation repair in Naples, FL for waterfront homeowners, HOAs, and marinas. Typical projects include helical piers under sagging docks and tilting boat lifts, polyurethane lifting of sunken pool decks along the seawall, and piling repair. Call 866-398-9323 or use the quote form to book a free on-site inspection.
These nearly always trace back to one of two causes: soft soil that can't carry the load, or soil washing out through the seawall.
Most of Naples's waterfront neighborhoods weren't built on solid ground. Port Royal alone was made by dredging and filling about two square miles of marshland, and roughly 70% of Naples Bay's original mangrove shoreline is now canals and walls. Under a typical waterfront lot you'll find:
Anything resting only on the top layer will keep sinking. The fix is to transfer the load down to firm soil.
Steel shafts with screw-shaped plates are turned into the ground until they reach soil that can carry the load. We track how hard each pier is to turn, which confirms it has reached firm soil. Then we bracket it to the structure and lift it back toward level. It works for docks, lifts, decks, and light waterfront buildings. See helical pier installation.
When soil has washed out under a pool deck or patio, we inject polyurethane to fill the gaps and firm up the ground. It can often lift the slab back into place without demolition.
Dock and lift pilings damaged by marine borers, rot, or storm impact can be jacketed, wrapped, or supplemented with new support.
If soil is escaping through the seawall, a foundation repair alone won't last. We pair it with bulkhead repair in Naples or seawall reinforcement in Naples so the ground stops moving.
Typical Naples pricing is $700–$2,000 per helical pier and $8–$25 per board foot for void fill. Most residential marine foundation repairs run $5,000–$25,000, depending on the number of piers, depth to firm soil, and access.
If a repair turns into a dock or lift rebuild, Collier County's dock rules apply. Docks generally can't protrude more than 20 feet into the waterway, and less on canals under 100 feet wide. Side setbacks from your property line also apply, and boat-lift canopies have their own size and color limits (Collier County LDC §5.03.06). We keep repairs inside your existing permitted footprint wherever possible. For full rebuilds, see marine construction in Naples.
We also handle marine foundation repair in Marco Island and Cape Coral.
Often, yes. If the pilings are sound but have shifted or settled, we can add support and re-level the lift. If pilings are damaged, we replace or supplement just those.
Usually because the soil underneath is settling or washing out through the wall. We check the wall and the soil together, because fixing only the deck won't hold.
As deep as it takes to reach firm soil, which varies from lot to lot. We verify each pier's capacity as it goes in.
In many cases, yes. Polyurethane injection or helical piers can raise slabs back toward their original position.
Licensed, insured, NCFI-certified. Serving Florida, Georgia & South Carolina since 1996.
866-398-9323