What tenting a San Jose house actually looks like
Fumigation is more logistics than chemistry from the homeowner's side. Before the tent goes up you bag or remove food, medicine, and anything else on the company's list, arrange somewhere to stay for two to three nights, and move pets and sensitive plants off the property. The crew seals the structure, releases the fumigant, holds it for a set period, then aerates and takes readings until the interior is cleared for reentry. Because the gas moves through framing rather than sitting on a surface, it reaches drywood galleries in rafters and headers that no inspector could have found. That reach is the entire reason to choose it. On a dense San Jose lot the practical questions are about the neighbors and the yard. Tents need working room, overhanging branches may need trimming, and access for equipment matters on narrow side yards. Ask the company to walk the perimeter with you and point out what must be cleared. Afterward, remember the house has no residual protection. Fresh pellets a year later mean a new flight found new wood, not that the fumigation failed.
Building a soil barrier around an urban lot
A liquid treatment is a trenching and drilling day. The crew clears a working strip along the foundation, digs a shallow trench, applies termiticide at a labeled rate, and backfills in treated layers so the zone runs continuously around the structure. Where concrete meets the wall, and on many properties that is most of the perimeter, the slab gets drilled at intervals so product can be injected below and the holes patched afterward. Bath traps and expansion joints may need indoor drilling as well. The value of the job is in continuity, since an untreated gap is a functioning door. Ask for the finished work in measurable terms: feet trenched, holes drilled, gallons placed, and specifically which sections could not be reached. Those unreachable spots are where a retreatment call usually originates a year or two later. One local caution. If a sprinkler zone soaks a treated area daily, expect that section to be the first to lose effectiveness, so pair the application with irrigation changes on the same week.
Why San Jose treatment life depends on your sprinklers
In wetter parts of the country, weather decides how hard a soil treatment has to work. Here, you decide. San Jose averages roughly 17 inches of rain a year with humidity around 65 percent, which means the soil beside most foundations would be dry for much of the year if nobody watered it. That changes what a treatment is competing against. A lawn zone that runs long, a drip line looped through a planter against the stucco, or a hose bib with a slow drip creates a small permanent wet patch, and that patch is where foraging concentrates and where a treated zone gets worked on hardest. So the highest-value thing you can do around the treatment date costs nothing: run each irrigation zone while you watch, and fix anything that lands water on the foundation. Move a planter box off the wall. Cap the drip that feeds the shrub touching the siding. Owners who do this get more years out of the same application than owners who do not, on identical houses with identical products.
Timing treatment around California swarm windows
Work can be scheduled any month, but the seasons tell you when to be watching and when the phones get busy. Spring is the first Reticulitermes window, since UC IPM ties California subterranean swarms to clear afternoons after a soaking rain, and that pattern makes March and April the most common discovery weeks. Summer belongs to daylight drywood flights. With average highs around 82 degrees and long clear stretches, adults are moving during the day through summer and fall, landing on exposed trim, open vents, and unpainted fascia. That is the season when screening vents earns its keep. Fall brings both at once: continuing drywood flights plus a second subterranean window once the first real storm arrives. Oregon State material notes Pacific dampwood termites swarm during late summer or fall, which is worth knowing if you have chronically wet wood somewhere. Winter is the quiet booking season. Colonies stay active underground, but the calendar opens up, which makes it the easiest time to get an unhurried inspection and a scheduled job.
What to verify before signing a treatment agreement
Four things, in order. First, the finding: a named species or an explicit note that identification is pending, with a diagram showing where evidence was seen. Second, the method, matched to that species rather than to what the company sells most. Third, the license branch. California's Structural Pest Control Board separates fumigation under Branch 1 from control of wood-destroying pests by insecticides or structural repairs and corrections under Branch 3, so check that the branch on the license covers the work being proposed. Fourth, the terms after the work. How long is the coverage period, what triggers a retreatment at no charge, what does the annual renewal cost, and does the agreement transfer to a buyer. That last question is worth asking early in a market where homes change hands with termite documentation attached. Also ask what is excluded. Inaccessible areas, detached structures, and carpentry repairs are the three items most often left out of the number on the front page.
Renters, owners, and treatment logistics in a shared building
Termite work is structural, so it sits with the owner rather than the tenant. Tenants do not control the irrigation timer, the roof, or the framing, and those are the things that decide whether a colony gets established. If you rent, report evidence in writing with photos and the date you saw it, and keep your copy. That record matters more here than with most pests, because a fumigation means the household leaves for a couple of days, food gets bagged, and access has to be coordinated. Those conversations go better when the timeline is documented from the start. If you own rental property in San Jose, put a perimeter walk on the calendar twice a year rather than waiting for a tenant call. Catching a mud tube on the outside of a stem wall is a far smaller job than finding a soft sill plate later. In multi-unit buildings, treat the structure as one system. Drywood colonies produce their own swarmers indoors, so treating one unit while leaving a shared attic alone tends to bring the problem back.