Castle Hayne

Helical piles in Castle Hayne, North Carolina

Castle Hayne is in New Hanover County near Wilmington, on the coastal side of a state that runs from barrier islands to the Blue Ridge. The state's residential code requires homes in coastal high hazard and ocean hazard areas to be built on pile foundations, and any alternative, including helical piles, generally needs engineering acceptable to the local official.

Coastal counties also fall under the Coastal Area Management Act, administered by the Division of Coastal Management, which can require permits in designated areas. Frost matters little here; the code sets a 12-inch minimum footing depth and the county inspections office sets the local figure.

Helical pile companies serving Castle Hayne

One company is based in Castle Hayne.

• American Deep Foundation, Inc.: installs driven, augered and micro piles for projects across North Carolina, the Southeast and mid-Atlantic; its summary does not specify helical work.

Costs and what to ask

HomeGuide puts typical installed cost at roughly $2,000 to $4,000 per helical pier nationally. North Carolina projects vary with soil, access, and the number of piers required. Read our helical pier cost guide for what a quote should include.

Questions to put to any installer:

• Is the pile layout stamped by an engineer for a coastal-zone site?
• Will the crew log torque at every pile and hand over the log at the end?
• What are the shaft size and helix configuration, and how is the steel protected near salt water?
• Is a permit required through New Hanover County, and who handles it? What does the warranty include in writing?

For the wider picture, see our page on North Carolina helical pile installers.