Argentine ants
The defining San Diego pest. They form supercolonies and move indoors for water in dry heat and for shelter in the first rains. Spraying the trail kills the visible ants and does nothing to the colony — baiting is what works.
What Pest Control and Termite Treatment Cost in San Diego
Argentine ants every October rain, drywood termites in every old stucco home, and roof rats in the palms.
Last updated
Quick answer
Expect $80–$150 a visit for bimonthly general pest service after a $150–$300 initial treatment, $250–$600 for a one-time ant or spider treatment, and $300–$600 for a rodent exclusion job plus trapping. Termites are the big-ticket item: San Diego's dominant species is the drywood termite, and whole-structure fumigation — the tent — runs $2,500–$6,000 for a typical single-family home, while localized spot treatments like orange oil or foam run $300–$1,500 per area but only treat what the inspector found. Argentine ants surge indoors with the first fall rain and again in dry mid-summer, roof rats live in palm and fan-palm crowns across the older neighborhoods, and rattlesnakes turn up in canyon-adjacent yards from spring to fall. Every company must hold a Structural Pest Control Board license; verify it at pestboard.ca.gov, and always get two independent termite inspections before agreeing to a tent.
Typical San Diego pest control pricing
| Service | Typical cost | Notes |
|---|---|---|
| Initial general treatment | $150–$300 | First visit is always priciest |
| Bimonthly general service | $80–$150/visit | Most common residential plan |
| Quarterly service | $120–$200/visit | Adequate for low-pressure homes |
| One-time ant treatment | $250–$600 | Argentine ants need perimeter + baiting |
| Termite inspection | Free–$200 | Free if tied to a sales pitch; paid ones are more objective |
| Whole-structure fumigation (tent) | $2,500–$6,000 | Priced by cubic footage |
| Localized termite treatment | $300–$1,500 | Only treats identified areas |
| Subterranean termite barrier | $1,200–$3,500 | Less common here than drywood |
| Rodent exclusion + trapping | $300–$600 | Sealing entry points is the actual fix |
| Attic cleanout / insulation replace | $1,500–$5,000 | After heavy rodent infestation |
| Bed bug heat treatment | $1,200–$3,000 | Whole-home; chemical-only often fails |
| Bee/wasp removal | $150–$500 | Live honeybee removal costs more, worth it |
The pests you actually get here
Drywood termites
They live entirely inside the wood with no soil contact, which is why fumigation is so common here. Signs are pellet piles that look like coffee grounds, and discarded wings around windows after a warm evening swarm.
Roof rats
Climb, nest in palm crowns, attics, and ivy, and get in through gaps as small as a quarter. Trapping without sealing entry points is a subscription, not a solution.
German cockroaches
An apartment and kitchen problem spread by moving boxes and used appliances. Requires baiting and sanitation, not just spraying.
Black widows and brown widows
Extremely common in garages, block walls, and patio furniture. Rarely worth chemical treatment beyond routine perimeter service and knocking down webs.
Rattlesnakes
Canyon-adjacent yards from spring through fall. Removal services run $100–$250. Prevention means clearing brush and rodent food sources; snake fencing runs $25–$40 per linear foot.
Gophers and ground squirrels
Yard destroyers across East County and inland. Trapping is the effective and legal route; ongoing service runs $75–$200 a month during active seasons.
Fleas and ticks
Year-round here because we never get a hard freeze. Treat the pet and the yard at the same time or the cycle restarts.
The termite decision
Get two inspections
Fumigation is a several-thousand-dollar recommendation. A second opinion from a company that does not fumigate is the cheapest insurance you can buy.
Section 1 vs. Section 2
California termite reports separate active infestation and damage (Section 1) from conditions likely to cause future problems (Section 2). Only Section 1 items are typically required in a real estate transaction.
Tent vs. local treatment
Fumigation kills everything in the structure, including colonies nobody found. Spot treatments are cheaper and less disruptive but only address what the inspector located, so re-treatment is common.
What a tent involves
Two to three days out of the house, all food and medication bagged or removed, plants and pets out, and you must arrange the gas shutoff and relight. Landscaping right against the walls sometimes gets damaged.
Repair costs are separate
Treatment kills the insects; it does not fix eaten fascia, eaves, or window frames. Get the repair bid before you decide the total budget.
Escrow reality
Termite work is negotiated in most San Diego home sales. If you are buying, order your own inspection rather than relying only on the seller's report.
Hiring and keeping pests out
Verify the license
Structural pest control companies are licensed by the California Structural Pest Control Board, not CSLB. Look up the company and the individual applicator at pestboard.ca.gov.
Read the contract term
Many quarterly plans auto-renew annually with an early-cancellation fee. Ask what happens if you cancel after two visits.
Ask for the service ticket
California requires disclosure of the products applied. You are entitled to know what was sprayed and where.
Exclusion beats spraying
Door sweeps, sealed utility penetrations, screened attic and foundation vents, and trimmed vegetation off the roofline do more than any chemical program.
Fix the water
Leaking hose bibs, irrigation overspray, and clogged gutters are what draw ants and rodents to a specific house on a block where nobody else has a problem.
Palm trees and ivy
Untrimmed palm skirts and ivy on walls are rat habitat. Trimming them is the single highest-value rodent prevention step in older San Diego neighborhoods.
Pet- and pollinator-safe options
Ask for enclosed bait stations instead of broadcast spraying, and never let anyone treat a honeybee swarm with pesticide — live removal beekeepers will take it.
Before you sign anything
- • Verify the license at cslb.ca.gov. Type the business name or license number into the CSLB lookup and confirm the license is active, the classification matches the work, and the bond and workers' comp are current. This takes 30 seconds and prevents most horror stories.
- • California caps the down payment on a home improvement contract at $1,000 or 10% of the contract price, whichever is less. A contractor demanding 50% up front is either unlicensed or in financial trouble.
- • You get a three-day right to cancel most in-home solicited contracts, and California gives seniors five days. Never sign the same day someone knocks on your door.
- • Prices here are typical San Diego County ranges collected from published rate sheets, permit fee schedules, and utility program pages. Coastal salt-air conditions, hillside access, and older housing stock all push quotes up. Get three written bids.
- • Permits are pulled by the City of San Diego Development Services or your city's building department, or the County for unincorporated areas. A contractor who suggests skipping the permit is transferring the risk to you at resale.
Frequently asked
How much does pest control cost in San Diego?
Recurring general service runs $80–$150 per visit on a bimonthly plan after a $150–$300 initial treatment. One-time treatments for ants or spiders are $250–$600, and rodent exclusion with trapping is $300–$600.
How much does termite tenting cost in San Diego?
Whole-structure fumigation typically runs $2,500–$6,000 for a single-family home, priced by cubic footage. Localized treatments run $300–$1,500 per treated area but only address the spots the inspector identified.
Why do I get ants every time it rains?
Argentine ants form massive interconnected colonies and move indoors when soil floods or dries out. Spraying the visible trail does not affect the nest — slow-acting bait that workers carry back to the colony is what actually reduces the population.
Are termites common in San Diego?
Very. Drywood termites are widespread across the county and most older homes will need treatment at some point. Coffee-ground-like pellet piles and discarded wings near windows are the classic signs.
What do I do about rats in my attic?
Trap and seal at the same time. Roof rats get through openings the size of a quarter, so the exclusion work — sealing vents, roof-to-wall gaps, and utility penetrations, plus trimming palms and ivy away from the roof — is the permanent fix.
Is pest control safe for pets and kids?
Ask for enclosed bait stations and targeted crack-and-crevice application instead of broadcast spraying, and request the product list, which California requires companies to disclose. Keep pets off treated surfaces until dry.
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