Termite and WDI Inspections in Dallas: What Every DFW Home Buyer Needs to Know
In Texas, no law requires a termite inspection — but VA loans do, Formosan termites are spreading into DFW suburbs, and missing one can cost $3,000–$30,000. Here's what every Dallas buyer needs to know.
Do DFW home buyers need a termite inspection?
A wood destroying insect (WDI) inspection is not required by Texas state law, but VA buyers must have one by federal rule, FHA and conventional lenders often require it when an appraiser flags evidence, and it's a smart $75–$150 investment for any buyer. Formosan termites have been confirmed in Collin, Dallas, Denton, Tarrant, and Rockwall counties — covering the entire DFW metro — and a missed infestation can cost $3,000 to $30,000 or more to repair after closing. A Texas Department of Agriculture (TDA)-licensed inspector performs the inspection during your option period and issues an official SPCS/T-5 (or NPMA-33 for VA) report documenting active infestations, past damage, or conditions favorable to infestation. When findings surface, you negotiate treatment and repairs before closing using a TREC Amendment.
By Paul Blair | August 15, 2026
When buyers move to DFW from out of state, they usually hear about the inspections their lender or agent is recommending — the sewer scope, the mold test, the radon kit. What trips people up is a separate inspection that doesn't get nearly as much attention: the wood destroying insect report.
In Texas, it's called a WDI inspection. Most people call it the termite inspection. And it's one of the most important $75 decisions you'll make in a DFW home purchase.
What a WDI Inspection Actually Covers
WDI stands for Wood Destroying Insects — and in Texas, that's a broader category than most buyers expect. The inspection covers all of the following:
- Subterranean termites — the most common species in DFW; they live underground and enter homes through mud tubes along the foundation
- Formosan subterranean termites — a more aggressive and destructive species; a single colony can reach 10 million workers and cause structural damage in months instead of years
- Drywood termites — less common in North Texas but present; they live inside the wood itself with no soil contact
- Carpenter ants — don't eat wood, but excavate it for nesting, weakening joists and framing members over time
- Powder post beetles and other re-infesting wood borers — less common, but included in the scope
The inspection is performed by a TDA-licensed Structural Pest Control inspector — not your regular home inspector. A TREC home inspector license does not authorize a WDI report in Texas. This is a separate hire, a separate license, and a separate report. Most pest control companies and some inspection firms offer it as an add-on.
The inspector documents three things: active infestation, evidence of past activity (mud tubes, frass, damaged wood), and conditions that make infestation more likely. The inspection is visual only — concealed damage inside walls or below concrete can still exist after a clean report.
Why Formosan Termites Are a Growing DFW Concern
Ten years ago, most Texans associated Formosan termites with Houston and the Gulf Coast. That's changing.
Formosan termites have now been confirmed in 30 Texas counties — including Collin, Dallas, Denton, Tarrant, and Rockwall, covering virtually the entire DFW metro. A pest control company confirmed Formosan activity in Wylie, Collin County. Reports from Frisco, Plano, and Flower Mound are increasing year over year.
Why this matters: a Formosan colony can contain 3 to 10 million workers, compared to 200,000 to 300,000 for a typical eastern subterranean colony. They consume wood faster and can cause structural failure in months. They also build above-ground carton nests inside walls and attics, making them harder to detect and treat than standard subterranean species.
A subterranean termite problem caught in year three is expensive but manageable. A Formosan problem caught in year three may not be.
Who Is Required to Get a WDI Inspection in DFW
Here's where buyers often get confused:
| Loan Type | WDI Requirement |
|---|---|
| VA loan | Mandatory — Texas is classified as a moderate-to-heavy termite risk state by the VA; all VA purchases require a WDI report |
| FHA loan | Required only if the appraiser flags evidence; lenders in high-risk zones often add it as an overlay |
| Conventional loan | Required if the appraiser flags evidence; some lenders add it as an overlay |
| Cash purchase | No lender requirement — but strongly recommended |
VA buyers have no choice. The U.S. Department of Veterans Affairs classifies all of Texas as requiring a WDI inspection for purchase loans. The report must be on the NPMA-33 form and must be completed by a TDA-licensed inspector. This cannot be substituted with a general home inspection.
For FHA and conventional buyers, the requirement depends on what the appraiser observes. If they note evidence of termite activity or damage — mud tubes, frass, soft wood — your lender will require a WDI inspection before approving the loan. At that point it's no longer optional.
For cash buyers: nothing requires it. But given the cost comparison — $75 to $150 to inspect versus $3,000 to $30,000 or more to repair damage that was already there when you closed — it's hard to make the case for skipping it.
How the WDI Inspection Fits Into Your Option Period
In Texas, the option period is your window for all due diligence inspections — the general home inspection, sewer scope, mold test, radon, and now the WDI. Order the WDI at the same time as your general home inspection, during the first 48 hours of the option period. Most inspectors deliver the report the same day or the following morning. That gives you time to review findings, get a treatment or repair estimate, and negotiate before the deadline.
If you wait until day 7 of a 7-day option period, you may not have time to act on what the inspection finds.
For VA buyers: coordinate timing with your lender. The WDI report typically needs to be in the loan file before the appraisal is ordered, or at minimum before appraisal review. Confirm the specific sequence with your lender before the option period begins.
Termite Treatment Costs in DFW (2026)
| Treatment Type | Average DFW Cost |
|---|---|
| Liquid barrier (Termidor) | $1,300–$2,800 |
| Bait station system (Sentricon) | $800–$1,500 install + $200–$400/yr monitoring |
| Tent fumigation (rare in DFW) | $2,000–$5,500 |
| Structural damage repair (moderate) | $3,000–$7,500 |
| Structural damage repair (major) | $10,000–$30,000+ |
What Happens If the Inspection Finds Something
When a WDI report shows active termites, past damage, or conducive conditions, you have real options during the option period. You don't have to walk away, and you don't have to just accept the finding.
The typical negotiation paths:
- Seller pays for treatment — most common outcome in the current DFW buyer's market
- Closing cost credit — seller credits buyer, who manages treatment and repairs with their own contractor after closing
- Price reduction — when damage is significant and the seller won't cover remediation
- Terminate — during the option period, you can walk for any reason, receive your earnest money back, and lose only the option fee
In DFW's current buyer's market — with sellers dealing with 4+ months of inventory and 49% of closings including concessions — buyers have significant leverage on termite findings. Sellers routinely agree to pay for treatment rather than put the property back on the market.
Any agreed repairs or credits go into a TREC Amendment (Form 39-10). Before you draft that amendment, it helps to understand what to ask the seller to fix after a Dallas inspection — treatment is just one piece of the negotiation.
Buying in Plano, Frisco, McKinney, or Allen and not sure whether a WDI inspection makes sense for the specific home you're under contract on? Schedule a private consultation with a Dallas-based Grey Square agent — we can walk you through the findings and what to negotiate. greysq.com/contact
The Report Forms: T-5 vs. NPMA-33
One point of confusion that comes up: there are two different report forms, and your lender may require a specific one.
- SPCS/T-5 — the Texas Official Wood Destroying Insect Report, issued under the Texas Department of Agriculture's Structural Pest Control Service; the standard form for most Texas residential transactions
- NPMA-33 — the National Pest Management Association federal form; required by VA lenders and many FHA/conventional lenders
Ask your lender which form they need before you order the inspection. Most TDA-licensed inspectors can issue either form, and some issue both. Confirm before the inspector arrives — getting the wrong form can require a second visit and delay closing.
What the Report Won't Tell You
A clean WDI report is reassuring, but it's not a guarantee. The inspection is visual only — if there's active termite activity inside walls, inside the attic structure above the accessible ceiling plane, or beneath a concrete slab, the inspector won't find it unless there's visible surface evidence.
For older homes — built before 1980, in areas like Garland, Mesquite, Irving, or parts of East Dallas — treat the inspection as a floor, not a ceiling. If the seller discloses past termite treatment, ask for documentation. The TREC Seller's Disclosure Notice requires sellers to disclose known pest damage and treatment history, but sellers may genuinely not know what happened before their ownership.
The WDI and mold inspection often surface related findings — moisture intrusion creates conditions favorable to both. If you're ordering one, ordering both at the same time is a reasonable call for any DFW home built before 2000.
Under contract on a home in Wylie, Sachse, or Murphy and weighing the termite inspection decision? Schedule a private consultation with a Grey Square agent familiar with Collin County's pest landscape. greysq.com/contact
Frequently Asked Questions
Is a termite inspection required to buy a house in Texas?
Texas state law does not require a termite inspection for home sales. However, VA loans require a WDI inspection for all purchase transactions in Texas, and FHA and conventional lenders may require one if the appraiser notes evidence of pest activity. Cash buyers face no lender requirement, but the inspection is still recommended given the potential cost of undetected structural damage.
How much does a WDI inspection cost in DFW?
A WDI inspection in Dallas–Fort Worth typically costs $75 to $150 when ordered as a standalone. Many home inspection companies offer it as a $75 to $100 add-on to a standard inspection package. Some pest control companies perform it at no charge when treatment is purchased. Reports are valid for 90 days.
Who performs termite inspections in Texas?
Only a Texas Department of Agriculture (TDA)-licensed Structural Pest Control inspector can issue an official WDI report in Texas. A standard TREC home inspector license does not authorize this inspection — it requires a separate TDA license. You can verify a pest control company's licensing through the Texas Department of Agriculture's license search.
What if the WDI inspection finds termites during my option period?
If active termites or damage are found during the option period, you can negotiate with the seller for treatment, a closing credit, a price reduction, or terminate the contract and receive your earnest money back. In DFW's current buyer's market, sellers frequently agree to pay for liquid barrier treatment ($1,300 to $2,800 in Dallas) rather than lose the deal. Any agreed remedy is written into a TREC Amendment before the option period expires.
What should I look for in a real estate agent when a DFW home has termite findings?
The agent who matters most in a termite situation is one who has seen enough Dallas-area inspections to put the WDI report in context — know when a past treatment is routine versus a red flag for deeper damage, when to negotiate versus terminate, and how to structure a TREC Amendment that protects you before closing. Paul Blair has represented buyers across Collin and Dallas counties for more than two decades, including many transactions where inspection findings — termite, structural, and otherwise — were what shaped or saved the deal. If you're under contract and a WDI report came back with findings, reach out before the option period closes. greysq.com/contact
A WDI inspection is the one $75 to $150 add-on in a DFW home purchase that protects you against a $3,000 to $30,000 problem that's already there when you close. Get it during the option period. Order the right form for your loan type. And if findings come back, negotiate — you have more leverage in this market than you might think.
About Paul Blair
Paul Blair has represented buyers across Dallas and Collin counties for more than two decades — including transactions where a WDI report came back with findings that changed the negotiation entirely. He knows the difference between a routine past treatment disclosure and a moment that calls for a harder conversation with the seller. Paul Blair is the founder and broker of Grey Square, a virtual real estate brokerage representing buyers and sellers across Dallas and Los Angeles. With 22 years in the business and more than $200 million in closed transactions, Paul works the full range of the market, from luxury homes in the Park Cities and Preston Hollow to estates in the Hollywood Hills and across the Westside. Connect with Paul and the Grey Square team at greysq.com. TX TREC #9011505 · CA DRE #01792671.