Pest control in Ontario
The West Valley Mosquito and Vector Control District is headquartered in Ontario, at 1295 E. Locust Street, and serves the city along with Chino, Chino Hills, Montclair, Rancho Cucamonga and Upland. Ask it for a rodent inspection. A technician walks the property's perimeter looking for the ways rats get in. It also does pool inspections and pre-construction surveys. No fee is listed, so ask at (909) 635-0307, weekdays 7:30 a.m. to 3:30 p.m.
It doesn't do bees anymore. The district stopped providing bee removal, so a hive at your house needs someone else. Its contact page names other agencies for Ontario residents: the Inland Valley Humane Society at (909) 623-9777, the San Bernardino County Department of Fish and Game at (909) 484-0167 and the county Department of Agriculture at (909) 947-4462. The state's 2026 West Nile county table, dated October 29, 2026, lists San Bernardino County with 3 human cases, 19 positive dead birds, 141 positive mosquito samples; no figure is shown for positive sentinel chickens, positive horses.
These are countywide 2026 year-to-date totals, not city-specific. A missing figure is not zero. Every figure there is countywide. A median Ontario home dates from 1980, per Census estimates for 2020 to 2024. A registered pest control company must carry $500,000 in liability cover for bodily injury and $500,000 for property damage under B&P 8692. Get proof before work starts.
What pest control costs near Ontario
Because no one has sent us a quote from Ontario, there's no price for the city itself. The California page lists the estimates with what pest control workers are paid ($24.21 an hour in the BLS wage data, which is pay, not price). How we estimate costs.
Licensing and rules for pest control in Ontario
California licenses pest control through the Structural Pest Control Board, not CSLB, and a company has to be registered with the Board. Ask for the company's registration and the license of whoever will do the work, since applicators, field representatives and operators may work only for a registered company and not on their own. County agricultural commissioners enforce pesticide-use rules locally.
Pest control jobs in Ontario
Sources for Ontario
- Services We Provide, West Valley Mosquito & Vector Control District Read Oct 23, 2026.
- Contact Us, West Valley Mosquito & Vector Control District Read Oct 23, 2026.
- CDPH West Nile Virus Activity by County (2026), dated 2026-10-29 — San Bernardino County Read Oct 29, 2026.
- ACS 5-year B25034 Year Structure Built Read Oct 26, 2026.
- B&P 8692; SPCB: start a pest control company Read Oct 20, 2026.