How Long Does Termite Treatment Last?
Treatment results, station maintenance and warranty coverage are three different things. Here's what to expect from each termite method and what to check afterward.
There is no single lifespan for termite treatment. Subterranean bait stations need ongoing inspection and service; localized drywood treatment addresses identified areas; fumigation treats the existing infestation but leaves no residual protection. Results depend on the method, access and conditions. ExterMetro's termite warranty covers retreatment under written terms, not termite damage or repairs.
"How long will it last?" is worth asking, but separate the treatment result from the service schedule and the warranty term. A two-year retreatment warranty is not a claim that every treatment stops working on day 731 or that new termite activity cannot occur before then.
Subterranean: bait stations that need ongoing service
Our in-ground bait-station programs target subterranean termites associated with the soil. Stations must remain accessible and receive inspection and servicing under the product label and written program. ExterMetro offers annual station service; any additional inspection or replenishment needs depend on the system, findings and label requirements.
Maintained stations support ongoing monitoring and treatment, but maintenance is not a guarantee that termite activity or damage cannot occur. Report new mud tubes or other evidence between visits. Bait stations do not treat drywood termites living inside wood.
Drywood: fumigation
Fumigation is a whole-structure treatment for the drywood infestation present at the time. It leaves no residual protection, so later reinfestation is possible. Treatment completion and the length of a written retreatment warranty answer different questions; inspections still matter afterward.
Drywood: spot treatment
Localized no-tent treatment can address limited, accessible drywood activity when inspection supports it. It treats identified areas, not all concealed wood in the structure. Results depend on finding the infestation and reaching it; concealed or widespread activity may require a different approach.
There is no single number of years that describes every spot treatment. ExterMetro provides a two-year retreatment warranty with annual extension options under written terms. That is retreatment coverage, not coverage for damage or repairs. See the spot-treatment versus tenting comparison for the differences in scope.
What keeps follow-up on track
Follow the inspection and maintenance schedule in your agreement. Our annual termite program provides scheduled inspection, applicable station service and warranty-extension options. New evidence deserves attention between visits; don't wait for a renewal date to report it.
Keep moisture and wood-to-soil contact under control, preserve access to stations and retain your treatment records. Read the retreatment warranty checklist, request a free quote or arrange a termite inspection. Formal WDO inspection reports are a separate service with scope and fees confirmed beforehand.
Further reading: UC IPM on drywood treatment limits and UC IPM on subterranean termites.
Quick Answers
Quick Answers.
How long does a subterranean bait-station treatment last?
A bait-station program is ongoing service rather than a one-time treatment with a fixed lifespan. Stations need inspection and servicing under the product label and written program. ExterMetro offers annual station service; additional needs depend on the system and findings. Maintenance does not guarantee that activity or damage cannot occur.
Does fumigation protect against future termites?
No. Fumigation treats the drywood infestation present at the time but leaves no residual protection. Reinfestation is possible, so follow-up inspections remain important. A written retreatment warranty is not prevention of future infestation.
How long does termite spot treatment last?
There is no single lifespan for every spot treatment. Results depend on locating the infestation, reaching the affected wood, the method and subsequent conditions. ExterMetro's localized treatment has a two-year retreatment warranty with annual extension options under written terms; it does not include damage repairs or whole-structure protection.
Do termites come back after treatment?
They can. New infestations, concealed activity or treatment limitations can lead to later evidence. Report new findings for assessment rather than assume the original problem has returned or that all new activity is covered. ExterMetro's warranty covers retreatment only under its written terms, not damage or repairs.
How often should I have my home inspected after treatment?
Follow your treatment agreement's inspection and service schedule. ExterMetro's annual termite program includes a scheduled yearly inspection and applicable station service. Contact us sooner if you notice new pellets, wings, mud tubes or damaged wood; do not wait for the next renewal.
About the Author
Joshua is the owner and licensed operator of ExterMetro Termite and Pest Control in Arcadia, CA. He holds California SPCB Company Registration #8828 (Branch 2 & 3), is a licensed WDO inspector, and has worked San Gabriel Valley homes and businesses for over twelve years — hands-on in the field on every kind of job the valley throws at him.
Think you just found termite evidence?
Bag a few wings or pellets, snap a photo, and text it to (626) 409-1584 — quotes from photos are free, and your job stays under licensed ExterMetro oversight from inspection through follow-up.