Termite Control in Pacifica, CA

Local Context

Under Linda Mar the Soil Is Still Damp in August, So the Colony Never Waits

Subterranean termites (Reticulitermes) live in soil and need it moist to forage, and Pacifica supplies that twelve months a year. Summer highs here average in the mid-60s and rarely reach the mid-70s, the marine layer sits over the city most summer mornings, and fog drip wets the ground on days it never rains. Then about 25 inches of rain arrives between October and May. Inland cities get a hard summer dry-down that shuts foraging off for months. This one never does.

The houses were built for a different understanding of coastal moisture. The median Pacifica home dates to about 1966, from the tract wave that filled Linda Mar, Fairway Park, Sharp Park and Park Pacifica with single-story ranches and split-levels. Their crawl spaces are shallow, often unlined, and vented into air that stays wet most of the year. Termites reach the sill plate through mud tubes no thicker than a pencil, run up a pier block, and stay out of sight. On the Linda Mar valley floor beside San Pedro Creek, and on the wooded creek lots in Vallemar where Calera Creek runs, that under-floor framing is the wettest wood on the property.

Pacifica rarely hands you only one organism. Chronic crawl-space moisture supports dampwood termites (Zootermopsis) in softened sill plates and joist ends, and wood-decay fungi work the same boards at the same time. Drywood termites (Incisitermes minor) do turn up, mostly in older framing and on the sun-warmed hillside blocks above Fassler Avenue, but they are not the headline here the way they are in warmer inland San Mateo County. Three findings, three different treatments — which is why the inspection comes before the recommendation.