What a Texas wood-destroying insect inspection does and doesn't tell you

A Texas wood-destroying insect inspection documents visible evidence of specified insects, previous activity or treatment, and conditions that may support infestation in the structures included in the report. It is limited to what was visible and accessible on the inspection date. It does not certify that a home is pest-free, measure all structural damage, or guarantee that insects will not appear later.

Read the complete official report and its scope, not just a yes-or-no finding. This article explains how to discuss it with the inspector; it is not a substitute report, a transaction requirement checklist, or an interpretation of your purchase contract.

How is a WDI inspection different from a general home inspection?

A WDI inspection focuses on wood-destroying insects and related conditions. It is not an assessment of every household pest or a replacement for evaluation of the home's systems. A general home inspection and a WDI inspection answer different questions, even when one business helps arrange both.

The Texas Real Estate Commission's inspection guidance treats WDI credentials separately and warns against advertising WDI inspections in a way that implies an unlicensed home-inspection business can perform them. The TDA report instructions specify that a certified applicator or technician licensed in the termite control category completes the official WDI report.

Ask who will inspect, which credential they hold, and which report you will receive. Our Texas hiring checklist explains verification. This guide does not claim every purchase or loan requires a WDI report. Confirm transaction-specific expectations with the parties handling your transaction.

What should you check first on the report?

1. Confirm the property, date, and inspector. Check the address, inspection date, business name and license number, and the inspector's name, signature, and license details. A report describes observations on its stated date, not the property's condition indefinitely. TDA's instructions explain those identification fields.

2. Read which structures were included. Section 5 identifies the structures inspected. Do not assume a detached garage, shed, fence, or guest house was included because it is on the property. Check the attached diagram against the structures you expected. Ask the inspector to explain any difference between your request and the report's scope.

3. Read the access limitations. Section 9 records obstructed or inaccessible areas. Ask what could not be examined, why, and whether a later inspection after access improves would be useful. Stored belongings, wall coverings, insulation, and construction can conceal evidence. Do not enter an attic or crawl space yourself or remove building materials to resolve a report question. Arrange any access work safely with qualified people.

These checks follow the official report's scope and section layout. A report with no observed infestation still needs to be read alongside its access limits.

What do active infestation, previous infestation, and previous treatment mean?

Section 11 separates these findings by insect. They are different observations, not three ways of saying the home has been cleared.

4. Ask which evidence supports an active finding. TDA uses insect-specific reporting criteria. For subterranean termites, the instructions tie the active designation to live termites observed in or on the structure. Other insects have different evidence criteria. Do not apply that live-insect rule to every box on the report. Ask the inspector to identify the insect, location, and evidence behind each finding. TDA's section 11 instructions explain these distinctions.

5. Do not read previous infestation as proof of current absence. It records evidence of infestation without current activity identified during that inspection under the applicable criteria. Hidden activity may remain undetected. Ask what evidence was observed, whether it suggests damage needing separate evaluation, and what follow-up is recommended.

6. Do not read previous treatment as proof of success. Drill marks, treatment notices, or other signs may show that work occurred. They do not establish that it was complete, effective, or still under warranty. Ask for available treatment records and contact the company named in those records. Check the actual warranty rather than inferring coverage from a sticker.

TDA's instructions explicitly distinguish visible treatment evidence from its success. Texas A&M AgriLife's termite guide also explains why termite activity can remain hidden behind wallboard, siding, or trim.

What are conducive conditions, and do they mean treatment is needed?

Conducive conditions are circumstances that may support wood-destroying insects, not automatic proof of infestation. Section 10 includes examples such as excessive moisture, wood touching soil, debris, and wood rot. A drainage problem and observed live termites are different findings that may require different responses.

7. Connect each condition to a specific correction. Ask where it is shown on the diagram and whether the recommended response is a repair, maintenance change, preventive treatment, or a combination. A sprinkler adjustment or removing wood against a structure may address a condition without being an insecticide treatment. Have plumbing, drainage, or building concerns assessed by the appropriate professional.

8. Ask why a treatment is recommended. Section 12 separates corrective recommendations tied to infestation evidence from preventive recommendations or correction of conducive conditions. Ask the inspector to connect the recommendation to the report's actual findings. TDA's report scope and instructions describe that distinction. A condition should not be presented as observed active insects when those insects were not found.

What does the report not tell you about damage or future risk?

The WDI report is not a structural damage assessment or a warranty against wood-destroying insects. It does not expose every wall cavity, determine the full extent of concealed damage, or establish that prior repairs removed all damage. The official scope directs damage evaluation and corrective decisions to a qualified expert.

9. Separate the next decisions. Ask what needs pest-control follow-up, what needs building assessment, and what information is still missing. If treatment is proposed, compare the method, structures covered, labels, follow-up, and any warranty in writing. An inspection finding and a treatment contract are not interchangeable.

Keep the complete report, diagram, attachments, and subsequent records together. Our termite-versus-ant guide can help you describe a sighting, but identification photos cannot replace the licensed inspection or evaluation of damage. Treat the report as a dated, limited set of observations that helps you ask better questions, not an all-clear for the property's future.

This field guide is educational and does not offer treatment bookings.