Termite Control Companies in San Diego, CA

San Diego homeowners face both of California’s main termite threats at once. Western subterranean termites work up from the soil under nearly every foundation type in the county, while western drywood termites fly straight into eaves, attic framing and window trim without touching the ground at all — this stretch of coast is one of the places where tented houses are a routine sight. The mild, frost-free climate keeps termites active year-round, and the marine layer keeps coastal wood from ever fully drying out. The species, statewide swarm seasons and licensing rules are covered on the California page; this page is the San Diego layer — what raises risk in specific neighborhoods, what to expect on pricing and how to choose among the companies listed below.

Termite risk in San Diego

Risk in San Diego follows the age and construction of the housing stock more than any map line. The pre-war neighborhoods — North Park, South Park, Mission Hills, Normal Heights, Golden Hill, Kensington — are filled with 1910s–1940s wood-frame craftsman and Spanish bungalows, many on raised foundations with crawl spaces. Those houses combine exposed sill plates and piers for subterranean termites with decades of eaves, fascia and attic framing for drywood termites, and inspectors here routinely find both species in one property.

The post-war slab-on-grade tracts — Clairemont, Mira Mesa, Serra Mesa and similar mid-century subdivisions — have the opposite profile: subterranean termites enter through slab cracks, expansion joints and plumbing penetrations and travel unseen behind stucco exteriors. Homes backing onto canyons or sitting under mature trees get extra pressure: wood fence posts, deck footings and mulch touching the house give colonies a bridge in.

Watch for two swarm seasons. Western subterranean termites swarm in spring, often after rain. Western drywood termites swarm on hot, still days in late summer and early fall — discarded wings on a windowsill or piles of six-sided frass pellets below trim are the classic first clues. Our guide to signs of termites shows what each of these looks like up close.

Prices

San Diego pricing sits inside the national ranges: a professional inspection generally runs $75–$250, and most treatments fall between $225 and $2,500 depending on the method, the species and the size of the home. One local wrinkle: because drywood termites are so entrenched here, a San Diego quote is more likely than most to include localized spot treatment, heat or whole-structure fumigation — so compare methods, not just totals. The price block below breaks the current numbers down, and our termite treatment cost guide explains what drives each method’s price.

Choosing a termite company in San Diego

Every termite company working in San Diego must be licensed by the California Structural Pest Control Board, part of the Department of Consumer Affairs. Licenses are issued by branch — Branch 3 covers termites and wood-destroying organisms, Branch 1 covers fumigation — so a company that tents houses needs the right branch and a registered fumigation crew. Verify any license in the DCA online search before signing; it also shows complaint history.

Before you hire, ask:

• Which species do I have, and how far has it spread? Get the findings in writing.
• For drywood termites: is this a candidate for localized treatment or heat, or does it genuinely need fumigation?
• What does the warranty cover — retreatment only, or damage repair — and is it transferable to a buyer?
• If this inspection is for a sale: can you issue a Section 1 clearance, and what will it cost?

Comparing two or three written termite inspections is the single best filter — findings and prices vary enough between licensed companies to make the second opinion pay for itself. The list below shows termite control companies operating in San Diego with ratings, review counts and phones; nearby, you can compare options in Los Angeles or Riverside.