Plain guides on how pests behave through a Bay Area year: what moves a quote, why termites swarm after the first rain, how rats and mice get in, what an old-house inspection covers and which agency to call about wildlife. Each one cites public sources.
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Updated October 7, 2026 · 11 min read
We could not source a San Francisco or Bay Area pest control price, so this guide prints no dollar figure. What moves a quote is the type of building and its age, how easily a technician can reach the attic and crawl space, whether the job is rodents, termites or insects, how many visits it needs, and whether a termite report is involved. The price is confirmed on site first.
Updated October 7, 2026 · 10 min read
Only two pest timings are sourced for San Francisco: western subterranean termites swarm in calm sunny spells right after the first autumn rains, and winter rain runs November to March. For every other pest this calendar names the trigger, such as a cold snap, garbage left out or a tree touching the roof, because no month could be sourced.
Updated October 7, 2026 · 11 min read
According to UC IPM, western subterranean termites swarm in calm, sunny periods right after the first autumn rains, and the effect is especially pronounced in the San Francisco Bay Area. A swarm shows that a colony is nearby, not that your building is infested. No swarm month is given for drywood termites because none could be sourced.
Updated October 7, 2026 · 11 min read
The San Francisco Department of Public Health names Norway rats, roof rats and house mice as the important urban rodents. Its program is proactive and complaint-based, but private owners deal with infestations on their own land, while the city mainly handles public property and can inspect private buildings and food facilities when vermin are reported.
Updated October 7, 2026 · 11 min read
A Wood Destroying Pests and Organisms report is the written findings of a California Branch 3 inspection: termites, wood-boring beetles, dry rot and fungus. In older San Francisco houses it is worth reading closely, because age, shared walls and damp wood all hide problems. Ask who wrote it, what was not accessible, and what is recommended.
Updated October 8, 2026 · 11 min read
In California, wildlife such as raccoons, skunks and coyotes falls under the Department of Fish and Wildlife, not the structural pest control licence. This site does not trap, remove or relocate animals. What a pest company can do is seal the building so animals cannot get in, and exclusion is often the first and only lawful step.
Updated October 7, 2026 · 11 min read
It depends on the county and sometimes the city. San Mateo County's vector district inspects for rats and mice for free but does not treat private property. Marin-Sonoma's covers mosquitoes and rats across two counties, with in-ground yellowjacket nests only. Alameda County inspects for rats except in Berkeley. Several East Bay cities are unconfirmed.
Updated October 7, 2026 · 10 min read
Dry rot is a wood-decay fungus, not an insect, and it needs moisture to grow despite the name. Coastal Bay Area houses get dry summers, wet winters and summer fog, so exterior wood goes through repeated damp and dry cycles. In California, Branch 3 of the structural pest licence covers wood-destroying organisms including dry rot and fungus.
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