The WDI Inspection: A Revenue Line You're Probably Skipping

You are parked outside the Delgado place finishing a quarterly perimeter when a woman walks over from the house next door. She just accepted an offer. The buyer's lender wants a termite letter by Friday, her agent handed her three phone numbers, and not one of them has called her back. Can you do it?

You could. But you are not sure what to charge, whether your license covers it, or which form the lender even wants. So you tell her you will check and get back to her — and by the time you do, she has already booked someone else.

That is a fifteen-minute conversation and a hundred-dollar hour you just gave away, standing on a lawn you were already being paid to be on. Real estate closings happen all summer and keep rolling into fall, and almost every one near you needs a wood-destroying insect report. Here is how to stop walking past that work.

What a WDI inspection actually is

A WDI inspection is a visual inspection of a property for wood-destroying insects — termites, carpenter ants, carpenter bees, powderpost beetles, and in some regions wood-decay fungus — usually ordered because a house is being sold or refinanced. The lender or the buyer's agent wants documentation that the structure is not being eaten alive before money changes hands.

You are not treating anything on that visit. You are looking, documenting, and signing a report. In most of the country that report is the NPMA-33 form, and the whole thing takes a well-organized operator under an hour on a typical single-family home.

That is the part operators miss: this is not termite work in the sense of tenting, drilling, and trenching. It is a walk, a flashlight, a moisture meter, a probe, and a form. The skill is knowing what you are looking at and writing it down honestly.

Why it is worth your time

Three reasons this belongs on your menu.

The margin is excellent. No chemical cost. No product to haul. No callback risk in the way a treatment carries one. Your only inputs are your time, your license, and your attention. Charge 100 to 150 dollars for an hour of focused work and you are beating most of your route stops on dollars-per-hour.

The lead flow is steady and predictable. Houses sell year-round, and every buyer with certain loan types needs this report. Once an agent or two learns you turn a clean report around fast, you get a call every time one of their listings goes under contract. That is recurring-ish revenue you did not have to chase door to door.

It opens the back door to real treatment jobs. Roughly speaking, a chunk of the homes you inspect will show evidence — old mud tubes, active carpenter ants, a moisture problem begging for a follow-up. You are not there to upsell the seller mid-transaction, and you should be careful about the appearance of drumming up your own work. But the new owner is going to need someone, and you are the pro who already walked the crawlspace. Do the inspection straight and the treatment work follows on its own.

Before you take a single job: the license question

Here is the part where I stop you. A WDI inspection is regulated work in most states, and it is not the same category as a general pest license. You typically need a specific termite or wood-destroying organism credential — sometimes a separate certification, sometimes an added category on your existing license — before you are legally allowed to inspect for and sign off on wood destroyers.

The rules vary a lot by state, and some are strict about who can sign the report versus who can walk the property. Do not guess on this one. Call your state regulator or department of agriculture, ask exactly what credential a WDI inspection requires in your state, and get it before you quote your first one. Signing a report you are not licensed to sign is the kind of mistake that ends a business, not just a job.

Everything below assumes you have squared that away.

How to price it

Standalone, most solo operators land between 75 and 150 dollars. Square footage, crawlspace access, and drive time move the number. In a hot market where agents are desperate for a fast turnaround, the top of that range holds easily.

A few pricing rules that keep this profitable:

• Charge for the report, not just the walk. Filling out the NPMA-33 properly takes real minutes. Bake that into the price.
• Add a trip premium for anything far off your normal route. A 45-minute drive each way can eat the whole margin if you priced it like a next-door job.
• Offer a repeat-agent rate, not a free one. It is fine to shave 10 or 15 dollars for the agent who sends you every listing. It is not fine to give the report away — that trains them to value it at zero.
• Never let the price pressure bend the findings. You are being paid for an honest report, full stop. The day you soften a report to keep an agent happy is the day the report is worthless and your liability is real.

How to run the inspection without getting burned

The whole value of this service is a report that holds up. Protect yourself:

Document obstructions. Cannot get into a crawlspace because it is full of boxes? Insulation covering a sill plate? Write down exactly what you could not see and why. The NPMA-33 has a place for this. An inspection you note as limited is defensible; a clean report on an area you never actually saw is not.

Photograph everything. Mud tubes, frass, exit holes, moisture staining, the meter reading. Photos are your record if anyone questions the report after the sale closes.

Distinguish old from active — carefully. "Evidence of previous infestation, no active insects observed" is a very different statement from "no evidence." Say precisely what you found. Vague language is where disputes are born.

Keep your own copy of every form. For years, not months. Real estate disputes surface long after the moving truck leaves.

How to get on agents' short lists

This work runs on referrals from a small number of people: real estate agents, and to a lesser degree closing attorneys and loan officers. You do not need fifty of them. You need three or four who trust you.

Win them the boring way: answer the phone, turn the report around within 24 hours, and never make the agent chase you for the form. Agents live and die by closing dates. The operator who reliably delivers a clean report on Thursday when the closing is Monday becomes the only number they call. Speed and dependability beat a lower price every time in this niche.

Introduce yourself to the busy listing agents in your area before you need them. A short, plain message — you do WDI inspections, you turn them around in a day, here is your number — is enough. Then deliver every single time.

Where the paperwork actually lives

The friction in this service is not the walk — it is the admin around it. The scheduling call, the report, the invoice, the photos, and remembering to follow up with the new homeowner months later when the sale is a distant memory. Miss the follow-up and you hand the treatment job you earned to whoever calls first.

That is a records problem, and it is the one place a system pulls its weight. In PestPro Smart CRM you can log the inspection as its own visit type, attach the photos to the property, send the invoice from the truck, and drop a reminder to check back with the new owner after closing — so the report you already did keeps paying you. But be honest about what matters here: the credential and the honest report are the business. The software just keeps you from dropping the ball on the paperwork around it. Run this straight with a paper folder if you have to; just do not let a missed form or a forgotten follow-up cost you the money you already earned standing in the crawlspace.

Next time someone walks across the lawn asking if you can do a termite letter by Friday, the answer should already be yes.