Termite control in Danville, CA is a core concern in a valley built on wood-frame architecture. The custom and estate homes around Blackhawk, Diablo, and the Mount Diablo foothills, along with the older houses near historic downtown, offer termites decades of framing, trim, decks, and eaves to work. Drywood termites live entirely inside dry wood with no soil contact and colonize eaves, attic framing, window trim, and wood siding; subterranean termites live in the soil and build mud tubes up through foundation cracks and plumbing into the structure. Both hide, so most homeowners find them only after spotting frass pellets, mud tubes, or damage. Call and a local pro can inspect and target the colony.
Two termites, two problems
Drywood termites are the classic Danville problem: they need no soil, live inside the wood itself, and drop frass, tiny six-sided pellets that pile up like coarse sand below infested eaves, trim, and attic wood. They favor the older downtown homes and the wood-heavy custom builds. Subterranean termites work from the ground, building pencil-width mud tubes up the foundation, garage slab, and plumbing penetrations, and swarm in spring.
Because the two live and spread differently, the inspection matters. A local exterminator confirms which termite you have, how far it has spread, and treats accordingly rather than guessing.
How termite treatment works
Drywood termites are treated by extent: localized spot treatment injecting the galleries when the infestation is confined, or whole-structure fumigation (tenting) when drywood colonies are widespread through the framing. Subterranean termites are treated with a liquid termiticide soil barrier, trenching and treating the soil around the foundation so termites hit a continuous treated zone, plus in-ground bait stations where useful.
A local pro inspects first, recommends the least-invasive approach that will actually clear it, and flags the moisture, wood-to-soil contact, and deck or fence issues that invite termites back into a valley home.