The short version
The strongest termite warning signs are live insects, mud shelter tubes, discarded equal-length wings, drywood-termite pellets, and wood that is visibly or internally damaged. Paint bubbles and soft wood have other causes, so preserve evidence and confirm the insect before authorizing treatment.
- A wing pile is more useful when the insects or intact wings are saved.
- Mud tubes suggest subterranean termite movement but do not reveal the colony’s full extent.
- Drywood pellets differ from the soil-based tubes made by subterranean termites.
- Bite marks are irrelevant; termites consume cellulose and are not diagnosed from human symptoms.
Homeowners in termite-prone regions. Home buyers and sellers needing WDI inspections.
What to look for
Both go undetected for years while colonies grow. Insurance doesn't cover termite damage. Subterranean termites enter through 1/32-inch cracks. Drywood termites need no soil contact.
- 1Mud tubes on foundation walls.
- 2Hollow-sounding wood when tapped.
- 3Discarded wings near windows after swarming.
- 4Frass—hexagonal fecal pellets from drywood termites.
- 5Blistered or buckling paint on wood surfaces.
- 6Tight-fitting doors or windows—wood swelling from moisture.
Why it’s worth acting soon
- Colonies grow for 3-8 years before visible damage.
- Repair costs far exceed treatment costs.
- Structural integrity compromised.
- Insurance excludes termite damage.
costs U.S. homeowners billions of dollars a yearTermite damageUSDA Treatment options and typical costs
WDI Inspection
$75-$200 (credited toward treatment)
Wood Destroying Insect inspection per NPMA-33 standards.
- Time
- 1-2 hours
- Best for
- Confirmation, real estate, annual monitoring
Prices are typical published ranges. Ask what’s included before you compare quotes.
Crawl spaces are where termites usually get in. Joists, piers and the sill plate should all get a close look.Read the evidence in context.
Several independent signs pointing to the same part of a building create a stronger case. An isolated stain or paint bubble is weak evidence because plumbing leaks and decay can look similar. Swarmers outdoors can reflect normal neighborhood activity; swarmers emerging indoors deserve faster inspection because they may have come through the structure. Note whether the find was indoors or outside, near a window, beside plumbing, on a foundation, or beneath damaged wood. If insects or wings are present, save a sample in a sealed container or on clear tape. Include a wide image showing where it sits on the structure and a close image with a coin or ruler for scale. Photograph the item before cleaning or opening it. A termite sign becomes more useful when its location, timing, and physical form are documented. Documentation also protects the homeowner from vague sales claims: the pro should be able to explain which observation supports the identification and which areas still require inspection.
termites activity by season.
In Signs Of Termites, checking the foundation, gaps around doors and windows, and any moisture or clutter near the structure usually turns up the conditions that are letting them in. The most useful first step in Signs Of Termites is to note where you have seen termites and when they appear, because that timeline is what lets a provider focus on the right area instead of treating the whole property. Scheduling before the busy stretch, rather than after it, tends to mean faster service and a more accurate quote, and a local provider can point out the conditions that matter most in Signs Of Termites.
Sealing the gap where pipes enter the house takes away one of the easiest routes in. It won't replace treatment, but it helps.Distinguish termite swarmers from flying ants.
Vacuuming the insects may remove the immediate nuisance, but it does not address an emergence point. It shows reproductive activity nearby and supplies a specimen that can be identified. The presence of swarmers does not by itself locate a nest or measure damage. Look at several individuals or intact wings under bright light. Real specimens may be damaged, so do not force an identification from one blurry feature. Termites also have a broad waist, unlike the pinched waist of an ant. Termite antennae are comparatively straight; ant antennae are elbowed. Termite wings are roughly equal in length, while an ant’s front wings are longer. EPA guidance highlights three practical differences. Both termites and ants produce winged reproductive forms, often after weather changes. Save a few examples, inspect window sills and light sources for additional wings, and record where the first insects appeared before the area is cleaned.
Understand tubes, pellets, and damaged wood.
Avoid destructive probing of finish surfaces or structural members. Rot tends to track moisture and has its own texture and fungal signs. Termite galleries may follow the grain and leave thin surface layers intact, making a board look sound until it is probed. Wood damage also varies. Drywood termites can produce hard fecal pellets that fall from small openings in infested wood; ordinary sawdust, carpenter-ant debris, and wood-boring beetle powder can look different under magnification. Its presence is meaningful, but its absence does not rule out concealed routes. A tube can appear on concrete, masonry, piers, plumbing penetrations, or hidden sides of framing. Subterranean termites build earthen shelter tubes that help retain moisture while they travel across exposed surfaces. A professional can select representative accessible points and distinguish insect damage from decay before repair work erases evidence.
Decide how quickly to act.
When evidence is uncertain, preserve the sample and request an inspection rather than applying household sprays. If a wall, floor, or support appears unsafe, keep people away and obtain appropriate building expertise in addition to pest control. Termite damage accumulates over time, but an extra day to obtain identification, written scope, and licensing information is usually more defensible than buying under pressure. Prompt does not mean accepting the first same-day treatment offer. The situation is also time-sensitive during a real-estate transaction, after flooding or plumbing leaks, or when damage affects stairs, supports, floors, or other safety-sensitive components. Call promptly when live termites, indoor swarmers, active tubes, or new pellets are documented. Sprays can scatter visible insects, contaminate evidence, and still fail to reach concealed activity.
Create an evidence map before the inspection.
The objective is not to prove a termite problem yourself. If an item is identified as an ant, beetle, rot, or another cause, preserve that explanation. Ask for the completed inspection to reference your numbered locations and state which were confirmed, ruled out, or inaccessible. Bring prior treatment diagrams and repair records so the inspector can compare new evidence with old work. It also prevents the opposite failure: treating one visible tube as the entire problem. This prevents a common failure in which a homeowner reports “termites everywhere” while the only preserved evidence came from one window. Use separate symbols for insects, wings, tubes, pellets, soft wood, and moisture. Record whether it was live, when it appeared, whether rain or warm weather preceded it, and whether the location is close to soil, plumbing, a slab joint, a deck, stored wood, or an addition. Number each observation and place the same number on its photograph or specimen container. Sketch the floor plan and outside perimeter or print a basic property diagram. It is to give the qualified inspector a traceable starting point and leave with a record that another professional could understand.
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Which possible termite sign did you find first?
When to call for help
Call if you see mud tubes, discarded wings, or hollow wood. Also before buying or selling a home. Annual inspections prevent damage.
What you can do yourself
Professional inspectors use moisture meters, IR cameras, and sounding tools to find termites inside walls. DIY misses 60%+ of active infestations.
Simple ways to keep termites away
- Schedule annual professional termite inspections.
- Eliminate wood-to-soil contact.
- Maintain clearance between soil and siding.
- Store firewood 20 feet from house.
An inspection starts outside, with a flashlight along the foundation line where mud tubes show up first.Did you know?
Termite swarmers have four wings all about the same length. Flying ants have front wings longer than the back pair.
A spray that kills only the termites it touches hasn't shown it can protect a whole house.
Companies that do structural termite work have to be licensed by the state.
Questions people ask
Termite damage vs water damage?
Tap testing—termite-damaged wood sounds hollow. Water damage causes wood rot. Termite damage creates galleries (tunnels) inside wood with mud or frass.
Can a photograph confirm the full termite problem?
A clear photograph can help distinguish a likely termite from an ant or show a mud tube, but it cannot map concealed activity or structural damage. Only an on-site inspection can show how much treatment is needed.
Should I break open a mud tube?
A professional may inspect a small section and check whether termites rebuild it, but breaking every tube can remove useful evidence without eliminating the colony. Photograph the tube and its location first. Avoid widespread disturbance.
Does every termite problem require tenting?
Subterranean termite plans commonly use soil treatments, localized work, bait systems, or combinations selected after inspection. Whole-structure fumigation is associated mainly with certain drywood termite situations. No.
What should a termite proposal include?
Look for the suspected termite type, where the evidence was found, the areas to be treated, the product or system, preparation, monitoring, follow-up, price, what's excluded, and the warranty terms.
Are termite warranties all the same?
Read the actual contract rather than relying on the word warranty. Renewal fees, how often they inspect, retreatment, repair coverage, whether it transfers to a buyer, what's excluded, and rules about property changes all vary. No.
Can moisture correction replace treatment?
Correcting leaks, drainage, and wood-to-soil contact reduces conditions that favor termites, but it does not prove an active colony is gone. Prevention and treatment address different parts of the risk.
In Signs Of Termites, can a pest control company do a termite inspection for a home sale?
In Signs Of Termites, termites are best caught early through inspection, because the damage is hidden inside wood until it is far along. In Signs Of Termites, a professional inspection looks for mud tubes, damaged wood, and swarming activity, and treatment targets the soil and the colony rather than just the visible wood.
What do termite droppings look like?
Subterranean termites don't leave piles like this, because they use their droppings to build mud tubes and line their tunnels, so look for tubes instead. Their color depends on the wood they've eaten. Drywood termites push their droppings out of small holes in the wood, so you may find little piles of hard, six-sided pellets about the size of a grain of sand, often below a window frame, door trim or attic beam.
Sources (9)
The facts in this article come from the public sources listed above. Every home is different, so ask the company you talk to about pricing and what’s included. Published by Termite Exterminator · Updated September 11, 2026 · How we write these guides