Most people discover a pest problem by finding evidence rather than an insect — wings on a windowsill, dark specks on a sheet, sawdust below a beam, a greasy smear along a baseboard. This section starts from what you found, not from what it is called.
Each page works the same way: what it usually means, how to tell it apart from the things it resembles, how urgent it actually is, and what to do before anyone arrives.
This is general information. Identification from a description is never certain. A licensed inspector looking at the actual evidence is the only reliable answer.
Start with what you saw
| What you found | Most often means | Urgency |
|---|---|---|
| Discarded wings on a windowsill or floor | termite swarmers — an established colony | high |
| Sawdust or pellets below wood | carpenter bees, carpenter ants, or drywood termites | moderate to high |
| Dark specks on sheets or mattress seams | bed bugs, fleas, or something harmless | moderate |
| Greasy smears along baseboards | rodents using a regular route | moderate |
| Mud tubes on a foundation wall | subterranean termites | high |
| Wood that sounds hollow when tapped | internal damage, often termites | high |
| Paint that bubbles or ripples on a wall | moisture, sometimes termites beneath | moderate |
| Scratching or scurrying overhead at night | rodents or wildlife in the attic | moderate |
The three questions that actually matter
Identification is the first question, not the only one, and the other two determine what you do next.
How long has it been there? Termite swarmers appear only from colonies mature enough to reproduce, which typically means several years of establishment. Finding the sign is rarely finding the beginning.
Is it structural? Wood-destroying insects are a different category of problem from nuisance pests. Damage accumulates whether or not you are looking at it.
Does your situation change what this means? The same sign carries different consequences for a homeowner, a seller under contract, and a tenant. Every page in this section ends with that split.
Why the same sign means different things
This is the part most guides leave out.
If you own and live in the home, the question is condition and cost, on your own timetable.
If you are selling, the standard Northern Virginia contract obligates the seller to furnish a wood-destroying insect report and to pay for treatment and for repair of damage the report identifies — with written evidence before settlement. A sign found now is a deadline. The contract clause →
If you are buying, what you found may or may not appear in the seller's report, and the obstructions section of that report defines how much the clean parts actually cover. How to read the report →
If you rent, the obligation runs to the landlord through the habitability duty, and your own duty is to report promptly in writing. Tenant remedies →
What we do not cover here
Signs on your body. Bites, rashes, and itching are medical questions, and a pest identification site is the wrong place for them. If a bite concerns you, see a physician.
We identify signs on objects — sheets, walls, wood, floors, windowsills. That is where a pest professional can actually tell you something.
What to do before anyone arrives
Do not clean it up yet. The evidence is what an inspector reads. Sweep the frass away and you have removed the diagnosis.
Photograph it in place, with something for scale, and note the date and the exact location.
Collect a sample if you can do it safely — a few wings in a sealed bag, a dead insect in a container. This is more useful than any photograph.
Do not spray first. Over-the-counter treatment before identification frequently scatters the problem, and for some pests makes professional treatment harder.
Note where and when. Which room, which wall, what time of day, and whether it recurs after cleaning. Frass that reappears in the same place within a day or two is the classic signature of active drywood termite or carpenter ant activity.
Termites in Virginia, briefly
The species you are most likely dealing with is the eastern subterranean termite — colonies underground, mud tubes to reach wood above, swarming from March through June on warm days after rain.
Drywood termites appear occasionally in southeastern coastal parts of the state.
Formosan termites are not established in Virginia as of 2026 — the nearest established zones are around Wilmington, North Carolina. Several Virginia pest control pages list them among species local homeowners face. If a company tells you that you have Formosan termites in Virginia, ask what that conclusion is based on.
Where you stand
If what you found suggests termites
Wings, mud tubes, hollow-sounding wood, or frass all point the same direction, and swarmers in particular indicate a colony that has existed for years.
Your action: get a licensed inspection rather than treating first, and keep the evidence intact for the inspector.
If you are under contract to sell
A sign found now has a deadline attached to it.
Your action: order the inspection immediately — the contract requires a report dated within 90 days of settlement, and a finding needs time for treatment and repair.
If you rent
Reporting promptly is both your statutory duty and your protection.
Your action: notify the landlord in writing today, dated, and keep a copy. Step by step →
If you are unsure what you are looking at
That is the normal case, and guessing wrong in either direction is expensive.
Your action: photograph it, bag a sample, and have someone qualified look at it. An inspection costs far less than either an unnecessary treatment or a missed infestation.
Before you call: what costs what
An inspection and a treatment are two separate services with separate prices, and conflating them is the most common way people end up surprised by a bill.
| Typical Virginia range | What it produces | |
|---|---|---|
| Wood-destroying insect inspection and report | $65–$200 | the NPMA-33 form |
| General pest inspection | often free where the company expects to quote treatment | a verbal or written assessment |
| Termite treatment | $500–$2,000; more where damage is extensive | a treatment record |
| Structural repair | quoted by a contractor, frequently the largest of the three | an invoice, not a pest control document |
What is usually free: a quote for treatment, once a company has seen the problem.
What is usually not: the inspection report used in a real estate transaction, and any visit that produces a document rather than a price.
Ask which applies before you book. A company quoting one figure covering both inspection and treatment is not quoting what a sales contract or a lender requires.
What to ask when you call
- Can you identify this from a photograph, or do you need to see it in person?
- Should I keep the sample, and how should I store it?
- Does your price include a written report, or just the visit?
- Under what name is your Virginia pesticide business license held?
- If this turns out to be wood-destroying, do you also complete the NPMA-33 report?
What to have ready
The property address and year built, foundation type, what you found and exactly where, when you first saw it, whether it recurs after cleaning, and whether you are selling, buying, renting, or staying put.
Verify before you pay anyone
VDACS maintains a public pesticide search at pesticidesearch.vdacs.virginia.gov and publishes an updated list of licensed pesticide businesses weekly. General pest work falls under category 7a and wood-destroying pests under 7b, per 2VAC5-685-70.
Ask which name the license is held under — trade names often differ from the licensed entity.
Other sections
- Wood-destroying insect inspections in a Virginia home sale — the contract clause, the report, loan requirements
- Pest infestations in Virginia rentals — landlord and tenant obligations, remedies, deadlines
- Termites in Virginia — species, swarm season, treatment and cost
- How to check whether a company is licensed — the public registry and what to ask