Yes, in practice. North Carolina’s Department of Agriculture and Consumer Services says the Wood-Destroying Insect Information Report, Form WDIR 100, is required on almost every residential structure sold, and your lender will almost certainly want one before closing a Wilmington purchase.
What catches buyers out is not whether they need the report. It is what the report does and does not tell them. We have sat at kitchen tables with buyers who read a WDIR as a clean bill of health for the whole house, and that is not what it is, by the state’s own description of it.
Here is the useful version, with the limits spelled out, so you know which findings to act on and which questions the report was never going to answer.
What the WDIR 100 actually is
North Carolina rules require that any written statement about the presence or absence of wood-destroying insects, or their damage, in a building for sale be made on the official Wood-Destroying Insect Information Report, Form WDIR 100. The agriculture department calls it the only form that is legal for that purpose. It has to be completed by someone licensed by the Structural Pest Control Division, or by an employee of a licensed company.
The inspection itself is a careful visual examination of the accessible areas of the building, plus sounding of accessible structural members near slabs and other susceptible areas. Permanently attached decks and porches are included. Detached outbuildings are not routinely inspected unless you ask for them. The insects commonly reported are subterranean termites, powder post beetles, old house borers, carpenter ants and sometimes carpenter bees.
What it does not cover, in the state’s own words
This is the part worth reading twice. The report is not a warranty that the house is free of wood-destroying insects, and the agriculture department says plainly that it is not a clearance letter and does not necessarily clear a structure. It reflects visible evidence on the day of the inspection, and the department notes that termites can build tubes at roughly two and a half inches per hour, which is its own comment on how long a clean report stays current.
It also does not report wood-rot fungi or wildlife damage, and areas the inspector cannot reach, such as inside walls or under carpet, are not listed separately. The inspector is not required to report the extent of damage, and structural, plumbing, electrical and roof problems are outside their scope unless the problem creates a condition conducive to termites. For the extent of any damage found, you need a contractor, a structural engineer or your home inspector.
The finding that shows up most on Wilmington houses
Not termites. Conditions conducive to them. The report has to list those conditions, and the agriculture department’s examples include wood in direct contact with soil, cellulose debris under the structure, insufficient clearance between wood and soil, excessive crawl space moisture, construction flaws, improper grading, and excessively wet wood, which it defines as a wood moisture content of 20 percent or greater.
Read that list against how houses are built here. A large share of our older housing sits on a crawl space rather than a slab, which is a function of sandy soil, a high water table and a climate that keeps humidity up most of the year. Our post on why Wilmington houses do not have basements covers why that is. The practical result is that a Wilmington WDIR comes back with conditions-conducive findings more often than a report in the Piedmont would, and most of those findings are moisture and grading rather than active insects. In older neighborhoods such as Forest Hills, where most of the housing stock predates central air, we expect the crawl space to generate at least one line on the report.
- Form WDIR 100 is the only legal form for a written statement on wood-destroying insects in a structure for sale NC Department of Agriculture and Consumer Services, Structural Pest Control and Pesticides Division, homeowner’s guide to the WDIR, read November 3 2026
- Excessively wet wood is defined as a moisture content of 20 percent or greater NCDA&CS homeowner’s guide to the WDIR, read November 3 2026
- Termites can build tubes at approximately two and a half inches per hour NCDA&CS homeowner’s guide to the WDIR, read November 3 2026
- A “clear” report is not mandatory for a transaction to close NCDA&CS homeowner’s guide to the WDIR, read November 3 2026
Who pays, and what to do when the report is not clean
The state does not assign who pays. Its guidance says it is up to the seller or the buyer to contract for treatment if treatment is necessary. In our market the buyer usually orders the report alongside the general inspection during due diligence, and whether the seller pays for treatment or repairs is a negotiation like any other repair item in the North Carolina contract.
When something comes back, sort it into three piles. Active infestation is a treatment question and a price question, and a licensed company can quote both. Old damage with no live activity is a structural question, which means getting a contractor or engineer to say what the repair costs before you negotiate. Conditions conducive is usually the cheapest pile and the one most worth fixing: a vapor barrier, grading away from the foundation, removing wood debris from the crawl space, correcting clearance. We tell buyers to fix the conducive conditions even when the seller will not pay, because they are what turns a clean report into an infestation two years later.
One more scheduling note. If the house has a crawl space with standing water or a blocked access, the inspector may need the area opened up, and the guidance says an additional fee can be charged when inaccessible areas have to be opened. Build that into your due diligence timeline rather than discovering it in the last week. Buyers working with us through our Buyer Advantage Program get that sequencing mapped out before the inspection period starts.
The WDIR has a real blind spot, and it is not the inspector’s fault: a visual report on accessible areas cannot see inside a wall or under a finished floor. A house can carry a report with nothing noted and still have damage behind drywall, which is why we treat the WDIR as one input rather than the answer. If the house is older, has a tight crawl space, or shows soft trim, bowed flooring or doors that stick, say so to your general inspector and ask whether a more invasive look is worth paying for. The other honest point: a report with findings is not a reason to walk away from a house you like. Most of what comes back on Wilmington houses is moisture and grading, which is money and a weekend, not a reason to lose a house you want.
Related questions people also ask
Is a termite inspection required to buy a house in North Carolina?
The North Carolina Department of Agriculture and Consumer Services says the Wood-Destroying Insect Information Report is required on almost every residential structure sold, and in practice lenders ask for it. The report has to be issued on Form WDIR 100 by someone licensed by the Structural Pest Control Division or working for a licensed company. A so-called clear report is not mandatory for the transaction to be completed, which means a report with findings does not by itself stop a closing.
What does a wood-destroying insect report not cover?
It does not report wood-rot fungi or wildlife damage, it does not cover inaccessible areas such as inside walls or beneath carpet, and the inspector is not required to report the extent of any damage found, according to the state agriculture department’s homeowner’s guide. Detached outbuildings are not routinely inspected unless you request them. It is also not a warranty that the structure is free of wood-destroying insects, only a statement about visible evidence on the day of the inspection. For damage assessment you need a contractor, structural engineer or home inspector.
What are conditions conducive to termites on a Wilmington house?
They are the things that make a structure attractive or vulnerable to subterranean termites, and the state’s guidance lists wood in direct soil contact, cellulose debris under the structure, insufficient clearance between wood and soil, excessive crawl space moisture, construction flaws, improper grading, and wood with a moisture content of 20 percent or greater. On the coast the moisture-related findings are the common ones, because so much of the older housing stock sits over a crawl space. Most are correctable with a vapor barrier, better drainage, grading and debris removal.
When you go under contract, order the general inspection and the WDIR in the same week so you have time to price anything that comes back before your due diligence date. If you are not under contract yet and want to know what a report on a specific house is likely to turn up, schedule a consultation and bring the address, and we will tell you what we would be watching for on that house.
Sources: North Carolina Department of Agriculture and Consumer Services, Structural Pest Control and Pesticides Division, Homeowner’s Guide to the Wood Destroying Insect Report, read November 3, 2026; North Carolina Administrative Code 02 NCAC 34 .0602, requiring written statements on wood-destroying insects in structures for sale to be made on Form WDIR 100; Tidal Realty Partners post on Wilmington foundations and crawl spaces, November 2, 2026.
