Learn where drywood termites occur, how their evidence differs from subterranean activity, and when a Florida home needs assessment.
Common in Florida does not establish a house-specific probability
Drywood termites are important structural pests in Florida, but a state distribution statement cannot establish how likely a particular home is to be infested. The West Indian drywood termite, Cryptotermes brevis, is especially significant in southern and coastal areas. UF/IFAS documents large populations in older southern buildings; this is not a current ranking of the worst counties or neighborhoods.
Drywood colonies live inside wood without a soil connection. An infestation can remain hidden while an apparently sound surface covers internal galleries. Furniture and other infested wooden items can also move the insect between locations. The practical response is inspectable construction and attention to actual evidence, not a presumed statewide infestation percentage.
UF describes drywood termites throughout Florida, with higher concentrations in southern areas. Suitable protected wooden material and concealed galleries help explain their building relevance; that distribution does not establish a current percentage of Florida homes infested. Framing, trim and furniture can be involved, and colonies may develop slowly out of view. UF’s western-drywood species account describes years before visible damage in some incipient colonies, but that species-specific history is not a fixed damage clock for West Indian drywood termites or for an unknown infestation.
Florida’s warm climate helps sustain these termites: UF identifies year-round warmth as a reason invasive termite species can thrive, including the West Indian drywood termite discussed in its Florida account. Suitable protected wood then provides the colony setting. This is ecological background for occurrence, not a home-specific infestation percentage, a humidity threshold or proof that every warm house has drywood termites.
South, central and north Florida: occurrence versus rankings
Southern and coastal Florida have well-documented West Indian drywood activity. That background justifies awareness but does not mean every coastal home has a colony. Local reports can help guide an inspection, but the risk to an individual building depends on its condition and evidence of termite activity.
Different drywood species and movement of infested wood further complicate a single regional scale. The western drywood termite is not native to Florida, and its structural occurrences can be associated with transported materials. A termite found in a northern home should therefore be identified rather than dismissed because of a regional map. Maps showing reports do not measure the proportion of all houses infested.
Understanding where termites come from helps distinguish a new swarmer entry from concealed feeding activity already present.
Drywood versus subterranean identification
Termite treatment begins with identification, not the size of the insect or the room where it appeared. Drywood termites live within wood without a soil connection. Small, hard, six-sided fecal pellets beneath a kick-out opening can be a clue. Subterranean termites generally reach wood from soil, often through earthen shelter tubes. Flying ants can resemble termite swarmers: termites have a broad waist and two similarly sized pairs of wings, while ants have a pinched waist and unequal wing pairs. A qualified inspector should confirm the insect and the evidence.
Colonies contain feeding individuals, soldiers and reproductives. Seeing a swarmer does not reveal the location or extent of the feeding colony. One visible patch of damage may connect to concealed wood, and an insect near an open window may have arrived from outside. Photograph the location, note the date and explain what changed. Preserve accessible evidence for the inspector rather than spraying, painting over it or opening structural wood.
Moisture, colony scale and gallery patterns add useful distinctions. West Indian drywood termites obtain moisture from water bound in the wood they eat and from metabolic processes, so a soil connection or visibly wet lumber is not required. Drywood colonies generally remain relatively small; subterranean colonies can be much larger, but a visible pile or patch cannot measure either population. Drywood galleries are typically smooth and can cross the wood grain, with dry pellets expelled through openings. Subterranean damage commonly follows the grain and is associated with earthen shelter tubes or mud. An inspector combines these clues with the identified insect instead of opening structural wood or diagnosing from one feature.
Subterranean shelter tubes protect termites against drying and may protect them from predators. Their colonies commonly use soil moisture and above-ground protected routes, while Formosan swarmers can establish an aerial colony without ground contact when wood or other cellulose, a moisture source such as a pipe or roof leak, and a concealed environment are available. That contrasts with drywood termites living in sound moisture-protected wood without a soil connection. The group comparison is not simply wet wood versus dry wood or a rule that every subterranean colony must remain in soil. Soil access and shelter tubes are useful subterranean-termite identification clues; distinguish this group from drywood termites.
Knowing about drywood termite swarming in Florida helps interpret flying reproductives without treating a month or time of day as species identification.
Signs, exit openings and concealed damage
Drywood clues include small hard six-sided pellets expelled through openings, swarmers associated with wood and damage discovered during repairs. Photograph the pellets and the suspected opening together. Color alone does not determine pellet age or identify the colony, and a small hole without corroborating insect evidence can have another cause.
Damage develops within galleries and can be difficult to measure from outside. Do not assign a fixed damage rate, age or structural severity to a pellet pile. A building professional should evaluate suspected compromised framing or floors separately from a pest inspector’s treatment plan. After treatment, old pellets can fall when wood is disturbed, so renewed debris needs contextual reassessment rather than an automatic failure conclusion.
Look for changes such as a thin, blistered or peeling wood surface, hollow-sounding areas, pellets or emergence openings. West Indian drywood galleries can approach the surface and cause that appearance. A hollow sound or blister is not a diagnosis by itself and does not measure severity. Have accessible evidence evaluated with species identification rather than breaking wood open to investigate.
Make the recognition check location-specific. From safe accessible positions, note possible pellets, emergence holes or changed wood surfaces around window and door frames or sills, exterior fascia and trim, hardwood floors and wooden furniture. Have qualified inspectors assess roof rafters and attic framing where access is hazardous or concealed. Discarded swarmer wings near a window, door or light are useful clues to document, but flying termites can also arrive from outside. Record wings with their location and nearby wood evidence; neither wings nor a hollow sound alone establishes the source, age or structural severity of an infestation.
Document the location and date of possible signs of termites before disturbing evidence.
Photograph possible termite exit openings and nearby pellets; a hole without confirmed insect evidence can have another cause.
Discuss termite damage repair with an appropriate building professional separately from the pest-treatment scope.
The shape and location of possible termite droppings can help an inspector distinguish drywood evidence from sawdust or unrelated debris.
Prevention: inspect, maintain gaps and treat suitable wood
Reduce conditions that favor access and make early signs easier to see. Repair plumbing and roof leaks, maintain drainage away from the foundation and avoid irrigation that repeatedly wets walls. Keep firewood, scrap lumber and other cellulose debris away from the structure. Avoid wood-to-soil contact and preserve a visible foundation inspection space rather than covering it with soil, thick mulch or stored materials.
For drywood risk, maintain screens, seal appropriate exterior gaps and keep exposed wood finishes in good repair. These steps can reduce opportunities for swarmers to enter but do not kill colonies already inside lumber. Borate treatments can protect accessible treated wood when the product is suitable and the wood is protected from weather; they do not make all surrounding untreated wood immune. Moisture repair and maintenance support treatment without replacing it.
Make inspection preparation practical: organize prior treatment records, identify evidence locations and provide safe access to ordinary areas. Leave hazardous attics, voids and structural opening to qualified professionals. Maintaining screens and appropriate gaps helps reduce entry opportunities; reducing unnecessary light near open entries may also limit light-attracted insects without treating an existing colony.
UF/IFAS recommends considering annual renewal inspections. Between visits, report new evidence rather than waiting for a calendar date. No wood choice, coating or lighting change should be described as making every untreated member immune. A prevention proposal should state the actual product or material and the scope it protects.
When choosing wood for a repair or renovation, distinguish chemical treatment from natural resistance. Pressure-treated lumber depends on the active ingredient, concentration, penetration and intended site; drilled holes and carpentry cuts can breach protection, and exterior exposure can leach some treatments. Naturally resistant wood varies by tree species and by heartwood versus sapwood, with availability and cost also affecting the choice. No cedar or redwood name guarantees immunity. Choose the material with the builder and pest professional for the actual construction and exposure, while keeping the building inspectable.
Maintain intact, suitable screens at windows and doors and appropriate attic or soffit ventilation openings. Assess accessible gaps around frames, eaves and exterior wood joints, and arrange repairs suitable for the building while retaining required ventilation. Sealing a swarmer entry route can reduce opportunities for a new colony; it does not reach a colony already concealed inside wood. Have roof-level or unsafe access handled by the relevant contractor rather than climbing or opening framing to search for termites.
Options: localized work, fumigation and professional heat
Localized drywood treatment may involve removal or replacement of an infested item or labeled treatment of accessible galleries. A foam or liquid injection can affect the wood reached by that application; it cannot be assumed to reach every separate colony behind finished surfaces. Ask what evidence supports a localized scope, what could not be inspected and how nearby members will be assessed.
A useful localized-treatment proposal identifies the affected wood, treatment limits and follow-up plan. A single pellet pile does not necessarily mean the entire problem is limited to one board. Conversely, an isolated infested item does not automatically justify whole-house fumigation. The decision depends on confirmed infestation, access and confidence in the mapped extent. Structural replacement requires appropriate building expertise and does not resolve unnoticed colonies elsewhere.
Whole-structure fumigation is an option for drywood colonies that are widespread, concealed or difficult to reach with localized work. A licensed fumigator encloses the structure and follows the product label and clearance requirements. This approach reaches a broader treatment scope than treating only a visible opening, but does not repair damaged lumber or leave a residual barrier against a later drywood infestation. It is also not a substitute for a subterranean-termite soil or bait program.
Residents, pets and plants must be out during the restricted period. Food, medication, connected structures and site access require the fumigator’s written preparation instructions. Return only after the certified applicator authorizes reentry and the required clearance is documented. A removed tarp, lack of odor or elapsed number of days is not clearance. Arrange accommodation and access around that process rather than assuming a standard two-day return.
Professional heat treatment is another drywood option in some situations. Its challenge is delivering the required exposure inside every infested piece of wood within the treatment scope. Room air temperature alone does not establish that a thick beam or a heat sink reached the necessary internal conditions. Sensitive materials, inaccessible areas and temperature monitoring must be considered before selection.
Heat does not leave a chemical residual against new infestation. It is not a reason to use a heat gun, household heater or sunlight as a substitute for a monitored treatment. Ask a provider whether it actually offers this method, which areas it can treat and how it verifies exposure. Availability of a method in an extension publication does not establish that On Demand Pest Control offers it.
The discussion of heat treatment for termites is relevant to monitored drywood treatment; it does not establish a provider offering or a home heating recipe.
Our drywood termite control guide compares localized and broader approaches to colonies living inside wood.
Review tenting for termites when discussing whole-structure drywood treatment, preparation and clearance with a licensed fumigator.
When to seek help and what the plan should document
Use evidence and records to decide what comes next. Keep the inspection report, identified species, treatment diagram, product information, preparation instructions and contract together. Establish what the provider will inspect at follow-up, which inaccessible areas remain and whom to contact if signs reappear. UF/IFAS recommends considering annual renewal inspections as part of home termite prevention; an inspection is different from automatically applying pesticide each year.
Photograph renewed pellets, wings, tubes or damaged wood with the location and date. Pellets can be dislodged from previously infested wood by vibration, so a new pile after treatment is a reason to ask for reassessment, not proof of failure on its own. New construction or disturbed soil also warrants review. A quiet period or a clean visible surface does not prove that every concealed colony is absent.
A termite bond is a service-contract term whose value depends on its written coverage. Under Florida section 482.227, the first page must clearly state whether the contract provides repair and retreatment, retreatment only, or no warranty or guarantee; limitations must also be disclosed. An inspection renewal, pesticide application and damage-repair obligation are different commitments.
Check covered termite groups, excluded conditions, renewal requirements, notice procedures, repair limits and transfer provisions. Do not assume drywood, Formosan and Asian subterranean termites are all included. Ask what happens after renovations, a lapse or sale of the property. A contract can define service and financial responsibilities, but it does not change a treatment’s biology or make future infestation impossible.
Identification and a property-specific assessment should guide a discussion of termite service options.
Use preparing for a termite inspection to organize records and safe access; do not open hazardous voids or structural members yourself.
Read actual terms when evaluating termite bond coverage, including whether retreatment and damage repair are separate obligations.
Sources
- Western Drywood Termite, Incisitermes minor (Hagen) (Insecta: Blattodea: Kalotermitidae) 1
- West Indian Drywood Termite Cryptotermes brevis (Walker) (Insecta: Isoptera: Kalotermitidae)
- Sulfuryl Fluoride Clearance Devices
- Structural Fumigation FAQ
- The Florida Senate
- Termite Prevention and Control
- Blogs
- Drywood Termites
Frequently Asked Questions
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Are drywood termites found in every part of Florida?
Yes. UF describes drywood termites throughout Florida, with higher concentrations in southern areas. That is a distribution statement, not an estimate of how many homes in a neighborhood are infested. Pellets, the insect and affected wood need identification and inspection at the property.
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How do I know if I have drywood termites or subterranean termites?
Drywood colonies live in wood without soil contact and may expel six-sided pellets. Subterranean termites commonly use earthen shelter tubes from soil routes. Have the insect and evidence confirmed; different groups require different treatment scopes.
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Can drywood termites spread from one house to another?
Winged reproductives can disperse and pair to establish a new colony in suitable wood. Infested wooden items can also transport drywood termites. A neighboring sighting is a reason for awareness and inspection, not proof that your own home has become infested.
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How much does it cost to treat drywood termites in Florida?
Ask for a property-specific written quote identifying the pest, findings, access and proposed method. Localized treatment, wood removal, fumigation and suitable heat have different scopes and preparation needs. No fixed Florida price follows from a distribution statement.
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How often should I have my Florida home inspected for drywood termites?
UF/IFAS recommends considering annual renewal inspections as part of home prevention. The property and service agreement may call for additional follow-up. Report renewed pellets, indoor emergence or damage promptly rather than waiting for the next scheduled visit.
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Do drywood termites go away on their own without treatment?
Do not assume a colony has gone because signs become quiet. Drywood termites can remain concealed within wood. Request identification and assessment of suspected activity, then use the treatment scope and follow-up evidence to evaluate results.
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