Termite Inspections When You Buy or Sell a Home in Southwest Missouri

What is a WDI inspection and an NPMA-33 report?

A WDI inspection is a visual, non-invasive look at a home's accessible areas for evidence of termites and other wood-destroying insects, plus damage and conditions that favor them. The results go on the NPMA-33, a standardized form from the National Pest Management Association that lenders and agents across the country recognize.

In southwest Missouri, most of these reports are written about the eastern subterranean termite. Carpenter ants and wood-boring beetles also count as wood-destroying insects, and the form leaves room to note them.

Visual and non-invasive are the key words. The inspector does not pull up flooring, open finished walls or move a seller's stored belongings, so the report lists any areas that could not be seen, such as a blocked crawlspace or a finished basement.

Many people call the finished form a termite letter. Whatever the name, it describes what was visible on the inspection date and nothing more.

• Whether visible evidence of wood-destroying insects was observed
• The type of evidence, such as live or dead insects, shelter tubes, frass or exit holes
• Any visible damage and where it was found
• Visible signs that the home was treated in the past
• Areas that were blocked or could not be reached

Does Missouri require a termite inspection to sell a house?

A termite inspection is not automatically part of every Missouri home sale. The loan and the purchase contract decide if one is needed. Lenders, including those writing VA and FHA loans, may call for a WDI report, and many buyers ask for one anyway. Your agent, lender or attorney can say what your deal requires.

This guide explains how the inspection works, not what your contract means. Questions about deadlines, who orders the report, repair requests or a late report belong with your agent, your lender or a Missouri attorney.

Even when nobody requires it, a WDI inspection costs little next to hidden termite damage. Buyers looking at century-old houses in Webb City, Carterville or Carthage may want one simply for peace of mind.

Across the state line, sales in Galena and Riverton follow their own lender and contract terms, and termite work there is licensed through the Kansas Department of Agriculture rather than Missouri.

What does the inspector check in a southwest Missouri house?

The inspector walks the outside foundation, then checks every accessible area: crawlspaces, basements, garages, porches and attics, plus floors, trim and window frames near ground level. The main targets are mud tubes, damaged or hollow-sounding wood, swarmer wings, frass and moisture problems that draw termites, such as wood touching soil.

Housing age shapes the visit around here. Mining-era frame houses in Webb City and Carterville often sit on stone or brick foundations with crawlspaces and old cellars, and their porches and steps put wood close to the soil. Those are the spots where eastern subterranean termites most often find a way in.

Newer slab homes in Joplin, Duquesne and the Carl Junction subdivisions bring different risks. Termites can enter through slab cracks, plumbing penetrations and expansion joints, and finished drywall hides much of the framing, so the exterior foundation line and the garage get extra attention.

In Carthage, Victorian houses with stone foundations, deep porches and lots near the Spring River add damp soil to the list, and their additions and enclosed porches often sit on a different foundation than the original house.

• Mud tubes on foundation walls, piers and sill plates, and inside crawlspaces
• Wood that sounds hollow or crumbles under a probe
• Discarded swarmer wings on windowsills and near doors
• Wood-to-soil contact at porches, steps, deck posts and siding
• Damp crawlspaces, leaky gutters and grading that sends water toward the house
• Mulch or firewood piled against the foundation

How much do WDI reports and termite work cost around Joplin?

A WDI (NPMA-33) report for a home sale typically costs $75–$150 around Joplin, and a standard termite inspection runs from free to $125. If treatment is needed, liquid termite treatment on a typical home runs $1,000–$2,800, while a bait system costs $1,100–$2,500 to install. These are 2026 estimates confirmed before any work.

The WDI fee covers the inspection and the completed form. A larger home, several outbuildings or a tight closing deadline can move it toward the top of the range, and the price is confirmed when you book.

Before booking, ask what the visit includes: the main house, any detached garage or shed you want covered, and who receives the finished report. Outbuildings are not always part of a standard visit, so name them up front if the buyer or lender cares about them.

Treatment pricing depends on the home's foundation length and type, crawlspace access and how active the colony is. Outside of a sale, a termite inspection is often the cheapest way to learn where a house stands before you list it.

What happens if the report finds termites or damage?

A report noting termites, old damage or conducive conditions starts a conversation, not a crisis. Active termites usually call for treatment, either a liquid barrier or a bait system. Old damage may need a contractor's opinion. How buyer and seller handle the costs is worked out through the contract and the agents, not decided by the inspector.

Liquid treatment creates a continuous treated zone in the soil around and under the foundation. A bait system uses in-ground stations that colonies feed on, with yearly monitoring at $275–$450. The termite baiting systems page compares the two in more detail, and termite control covers liquid work.

Treatment records matter long after closing. Keep the service report, the product used and the date in your house file, because the next buyer's inspector will ask for them.

When should the WDI inspection happen in the sale timeline?

Schedule it early in the inspection period, as soon as the contract allows. That leaves time to treat, get repair opinions and negotiate if something turns up. Lenders often want a report dated close to closing, so ask how recent yours must be. Sellers who suspect a problem can order a pre-listing inspection to avoid surprises.

Spring adds a wrinkle. Eastern subterranean termites swarm on warm spring days, often after rain, and a showing in swarm season can turn up winged insects on a windowsill. Swarmers indoors usually mean an active colony in or under the house, so mention any you see to the inspector.

Give the inspector clear access. Unlock the crawlspace hatch, move boxes away from basement walls and clear the attic entry, so fewer areas end up listed as not inspected.

A rough order works for many buyers: sign the contract, book the WDI visit that same week, read the report as soon as it arrives, and leave a few days for treatment quotes or a contractor visit if anything turns up. Your agent fits that around the deadlines in your own contract.

Who handles termite work in Missouri, and how can you check?

In Missouri, the Bureau of Pesticide Control at the Missouri Department of Agriculture licenses the people who apply pesticides, under the Missouri Pesticide Use Act. Commercial termite work is handled by certified commercial applicators or by licensed pesticide technicians under a certified applicator's direct supervision. You can ask any company for its license number before work starts.

Certification in the structural categories takes documented experience under a certified applicator or a related associate degree, plus exams given through Pearson VUE. New pesticide technicians must complete an approved training program within 45 days of being hired.

Kansas works differently. For homes in Galena or Riverton, a business applying pesticides for hire needs a Kansas pesticide business license from the Kansas Department of Agriculture, with a certified commercial applicator in each category it works in.

Asking for a license number is routine, and nobody should be offended by it. You can ask on the phone at (855) 974-4733 or when the technician calls to confirm the visit.

What can sellers do before listing to avoid termite surprises?

Fix the conditions an inspector will flag before the house goes on the market. Pull mulch and soil back from the foundation, separate wood steps and posts from the ground, clear gutters, direct downspouts away from the walls and keep firewood off the ground and away from the house. A pre-listing termite inspection catches anything else early.

Spring storms in southwest Missouri can dump heavy rain in short bursts, and a crawlspace that stays damp for days invites termites. Working gutters, a vapor barrier and a dry crawlspace make for a cleaner report and a sounder house.

Walk the house yourself before an inspector does. Circle the foundation with a flashlight looking for pencil-width mud tubes, poke any wood that touches the ground, and check under the porch and in the crawlspace for damp soil or soft joists. Anything you find is better discovered now than in the middle of a buyer's inspection period.

Gather the paperwork too. Past treatment receipts, bait monitoring records and repair invoices answer a buyer's questions before they become negotiating points.

If bait stations are already in the yard, leave them in place and point them out to the inspector, because a buyer will want to know who has been monitoring them.