Most San Jose termite stories begin with a small pile of pellets on a window sill or a cloud of winged insects on a warm autumn afternoon. The Santa Clara Valley's dry, mild climate is ideal for drywood termites, and the city's many wood-framed homes give them plenty of material.
The termites of the Santa Clara Valley
Drywood termites are the common culprit. They live entirely inside wood, from attic rafters and fascia boards to window frames and picture frames, with no contact with soil. Colonies produce six-sided fecal pellets that fall from small kick-out holes and collect like sand. Western subterranean termites nest in soil and travel through mud tubes, usually near leaks or irrigated planters. Dampwood termites occur in moist wood, such as decks, fences and framing near plumbing leaks, particularly in the cooler, foothill-adjacent neighborhoods. Formosan termites are not an established problem in this region.
Housing types and where termites enter
San Jose's housing stock ranges from prewar bungalows in Willow Glen and the Rose Garden to ranch homes built during the postwar boom in Cambrian, Berryessa and Evergreen. Mid-century Eichler tracts such as Fairglen feature exposed post-and-beam framing and tongue-and-groove ceilings that deserve careful inspection. Stucco covers the walls but not the vents, rooflines and trim gaps termites use. Many homes have attic vents with torn screens, and decorative wood trim and pergolas add exposed wood.
Signs to look for
- Tiny pellets beneath window frames, doors and attic vents.
- Discarded wings near windows after a warm autumn day.
- Wood that sounds hollow or looks blistered.
- Mud tubes on foundation walls or in the crawl space.
- Small kick-out holes in wood surfaces.
Inspection and treatment
A licensed inspector examines the attic, subarea, garage, decks, fences and exterior trim, and provides a written report. Silicon Valley real estate transactions typically include a termite report, so many San Jose homeowners are familiar with the findings and the classification of work. Whole-structure fumigation with tenting is the standard solution for widespread drywood infestations, and occupants leave for a few days. Smaller, accessible infestations can be treated locally with foam or borate injections, heat, or wood replacement. Subterranean and dampwood termites are addressed by correcting moisture and by soil treatment or bait.
Your provider should explain the extent of the infestation, which method fits and what to prepare. Plants, food and medications need special care before fumigation.
Prevention
- Paint or seal exposed wood on eaves, fascia, trim and pergolas.
- Screen attic and foundation vents with fine mesh.
- Repair roof, plumbing and irrigation leaks quickly.
- Keep soil and planters from touching stucco or siding.
- Store firewood away from the house and off the ground.
What happens when you call
PestMinistry is a referral service, not a termite company. Call (844) 725-1661 and we will connect you with an independent licensed provider in our network who handles termite control in San Jose. The provider inspects and carries out treatment.
Termite questions in San Jose
When do drywood termites swarm in the Bay Area?
Often on warm days in late summer and fall, though timing varies from year to year.
Can I stay home during treatment?
For fumigation, no. Local treatments usually do not require leaving.
Is a termite report required when buying a home?
It is not legally required in every case, but it is customary in San Jose and valuable for buyers.
Are stucco houses protected?
No. Termites reach framing through vents, trim and roof edges.