If you’re buying a home along the Jersey Shore, the inspection checklist looks a little different than it does for an inland property. Elevated homes, bay-front properties, and houses built on barrier islands often sit on piling foundations that are never visible during a standard walkthrough. A piling inspection is one of the most important services available to coastal South Jersey homebuyers, and it’s one that many buyers don’t think to ask for until it’s too late.
What Are Pilings and Why Do They Matter
Pilings are structural supports driven deep into the ground beneath a home to bear the load of the structure above. In coastal areas throughout Atlantic County, Cape May County, and Ocean County, pilings are the standard foundation method because the sandy, unstable soils near the water can’t support a conventional concrete slab or block foundation. The pilings transfer the home’s weight down to more stable ground below, and they also elevate the structure above base flood elevation levels required by FEMA and local zoning.
Because pilings are buried, driven into soil, and often submerged in tidal water for portions of their service life, they are subject to a distinct set of deterioration mechanisms that simply don’t apply to conventional foundations. What’s happening to the wood or steel below grade often has no visible sign above it until something fails.
Wood Pilings and Marine Borers
The majority of older elevated homes along the Jersey Shore sit on wood pilings, typically treated timber that was driven during original construction. Wood pilings in saltwater and brackish tidal environments face attack from marine wood-boring organisms, particularly organisms like Teredo navalis, commonly called shipworms, which are actually bivalve mollusks that tunnel into submerged wood and can hollow out a piling’s interior while leaving the outer surface appearing intact.
A piling that looks solid from the outside may have lost a significant percentage of its structural integrity to marine borer activity. This is exactly why visual inspection from the surface is not sufficient. A proper piling inspection involves getting below the structure, probing the wood at and below the waterline, and assessing the true remaining cross-section of the pile.
Rot and Fungal Decay
Above the waterline but in the splash zone, where pilings are alternately wet and dry with tidal cycles and wave action, wood is particularly vulnerable to fungal decay. This zone tends to see the most active deterioration in many Shore properties. Soft spots, discoloration, and reduced structural resistance to probing in this area are warning signs that the piling’s effective diameter has been compromised.
Steel and Concrete Pilings
Newer construction along the Shore increasingly uses steel or concrete pilings, which address the marine borer problem but introduce their own concerns. Steel pilings are subject to corrosion in the saltwater environment. Concrete pilings can experience spalling, cracking, and rebar corrosion that expands and fractures the surrounding concrete. Both materials require expert evaluation to assess remaining service life.
What the Inspection Involves
A piling inspection at a Shore property requires physical access below the structure, which is why it’s a specialty service beyond the scope of a standard home inspection. The inspector will examine each accessible piling for visible deterioration, probe wood pilings for loss of structural cross-section, assess connections between pilings and the beam structure they support, look for settlement or out-of-plumb conditions that suggest movement, and document any pilings that have been previously sistered, spliced, or repaired.
Where conditions allow and tidal access is favorable, the inspection extends to below the waterline where marine borer damage is most likely to be concentrated. The findings are documented with photos and a written assessment of each pile’s condition.
The Stakes Are Real
A home that needs significant piling work isn’t necessarily a deal-breaker, but it is a significant negotiating point. Replacing or sistering failing pilings beneath an occupied home is disruptive and expensive work, and it’s the kind of expense that can blindside a buyer who never knew to ask for a piling inspection. The cost of the inspection is modest compared to what it can reveal.
Funk Inspection Services has nearly 50 years of experience inspecting homes along the Jersey Shore, and piling inspections are a standard part of their coastal property expertise.
Getting Out on the Water
When you’re not in the middle of the inspection process, the back bays and coastal wetlands of South Jersey deserve some of your time. The Edwin B. Forsythe National Wildlife Refuge, located in Atlantic and Ocean counties, protects more than 48,000 acres of coastal salt marsh and tidal habitat. The eight-mile Wildlife Drive offers an exceptional look at the same back-bay environment your Shore home sits within, and the birding along the route is among the best on the East Coast.
Frequently Asked Questions
Are piling inspections required when buying a Shore home in New Jersey?
Piling inspections are not legally required, but they are strongly recommended for any elevated coastal property in South Jersey. A standard home inspection does not include subsurface or below-grade piling evaluation.
How do I know if a home I’m buying has pilings?
Any elevated home built on posts rather than a poured slab or crawlspace with a solid perimeter foundation likely has pilings. Your real estate agent or the listing documents can usually confirm the foundation type, and an inspector can verify during the visual portion of the evaluation.
What happens if significant piling deterioration is found?
Depending on the severity, options range from sistering compromised pilings with new material alongside them to full replacement of affected sections. A licensed contractor with coastal foundation experience can provide an estimate for the scope of work found during the inspection.
How often should pilings be inspected after purchase?
For properties in tidal or saltwater environments, a piling inspection every five to seven years is a reasonable maintenance practice, or following any significant storm event that may have caused scour, impact, or displacement around the foundation.
Buying or owning an elevated home along the South Jersey Shore? Contact Funk Inspection Services for a comprehensive piling inspection in Atlantic, Cape May, Ocean, and surrounding counties. Submit an inquiry today.