Did You Know Termites Cause More Structural Damage Than Fires, Floods, and Windstorms Combined?

What a Wood-Destroying Insect (WDI) inspection is, what it finds, and why it belongs in every real estate transaction.

This one surprises almost everyone who hears it.

According to the USDA Forest Service and multiple pest control industry estimates, termites and other wood-destroying organisms cause an estimated $30 billion in property damage annually in the United States — more than the combined annual damage from fires, floods, and windstorms in most years. Unlike those events, termite damage is not covered by standard homeowner’s insurance policies.

And here’s the thing that makes it worse: termites are quiet. Methodical. Patient. A colony can be actively consuming the structural framing of a home for years before it’s visible from the surface — if it ever becomes visible at all.

A certified Wood-Destroying Insect (WDI) inspection is the only way to know.

What Is a WDI Inspection?

A WDI inspection — sometimes called a termite inspection or pest inspection — is a systematic examination of a property for evidence of wood-destroying insects. The inspector looks for:

• Live organisms or active infestation — visible insects, swarmers (winged reproductives), or live colonies
• Evidence of past infestation — damaged wood, mud tubes, frass (termite droppings), or hollow-sounding structural members
• Conditions conducive to infestation — wood-to-soil contact, moisture accumulation, wood debris near the foundation, dense landscaping pressed against siding, and similar risk factors

The inspection covers accessible areas of the structure — foundation perimeter, crawl spaces, basement framing, garage, and other areas where wood-destroying insects typically operate.

Who Are the Culprits?

The term “wood-destroying insect” covers more than just termites. A complete WDI inspection also addresses:

Subterranean Termites — The most common and destructive species in both North Carolina and New England. They live in soil colonies and build mud tubes to travel to wood sources above ground. Subterranean termites are present throughout the entire eastern United States and are the primary concern in most residential inspections.

Drywood Termites — Found primarily in coastal areas, drywood termites live entirely within the wood they consume and don’t require soil contact. They’re less common but harder to detect because they leave fewer surface signs.

Carpenter Ants — Unlike termites, carpenter ants don’t eat wood — they excavate it to create nesting galleries. The damage is often cosmetic in early stages but can compromise structural members if colonies go untreated for years. Carpenter ants are a significant concern in the moist wood conditions common throughout Maine, New Hampshire, and coastal North Carolina.

Wood-Boring Beetles — Several beetle species lay eggs in wood and produce larvae that bore through it during their development cycle. Evidence of beetle activity (emergence holes, frass) can indicate either active or past infestation and should be evaluated by a professional.

Is a WDI Inspection Required?

For most conventional loans, a WDI inspection is not required — but it is often highly recommended and sometimes expected in the market.

For FHA and VA loans, a WDI inspection is typically required as a condition of financing. VA loans in particular mandate a clear termite inspection in almost all states, including North Carolina. If you’re working with veteran buyers or buyers using government-backed financing, plan for a WDI inspection from the start.

Beyond loan requirements, the real answer is: the inspection exists for the buyer’s protection. Skipping it is a cost-saving decision that can have $10,000–$50,000+ consequences if active or historic infestation is missed.

What Happens If the Inspector Finds Something?

A WDI inspection result doesn’t automatically kill a deal. It creates information.

If active infestation is found, treatment by a licensed pest control company is typically required before closing. Treatment costs vary by method (liquid barrier, bait stations, fumigation) but are often $500–$2,000 for localized treatment.

If evidence of past infestation with no current activity is found, the finding is documented. Some lenders require a letter from a licensed pest control operator confirming that prior treatment was completed and no active infestation is present.

If conditions conducive to infestation are noted — wood mulch piled against the foundation, wood-to-earth contact at a porch post — these are maintenance items the buyer can address proactively after closing.

For Agents: Set Expectations Before the Walk

Termite mud tubes on a basement wall can create buyer panic if they’ve never seen them before. Familiarizing clients with what WDI evidence looks like, what it means, and what the treatment process involves helps them receive findings calmly and make rational decisions.

A WDI inspection is one of the lowest-cost add-ons to a home inspection — at FPI, it’s $99 — and one of the highest-value ones in terms of protecting clients from significant post-closing surprises.

One Appointment. Complete Coverage.

Focused Property Inspections offers certified WDI inspections alongside your general home inspection — no separate contractor, no extra coordination, no delay to your timeline. Our inspectors are certified to issue WDI reports recognized by major lenders including VA, FHA, and conventional programs.

We serve North Carolina markets including Raleigh, Fayetteville, Jacksonville, and Wilmington, as well as Maine and New Hampshire.

Book your inspection and add a WDI evaluation today:

📞 833-FPI-INSP (833-374-4677) | fpi-web.com

Focused Property Inspections — Veteran-Owned. Client-Focused. Detail-Driven.