San Bernardino, CA Building Safety: Pest Control (2026)

San Bernardino Municipal Code property maintenance provisions require owners and occupants to keep buildings and yards free from rodent harborage, insect infestations, and other vermin that constitute a public nuisance. Typical rules prohibit accumulations of trash, junk, or overgrown vegetation that attract rats and mice; require screens on windows and doors to exclude flies and mosquitoes; and mandate prompt repair of holes in exterior walls, foundations, and rooflines that allow pest entry. Tenant and landlord responsibilities under California Civil Code 1941.1 place the duty to maintain habitable premises free of rodent and insect infestations on landlords when conditions exist at move-in or are caused by structural defects, while tenants are responsible for infestations caused by their own uncleanliness. Commercial structural pest control operators in California must hold a license issued by the Structural Pest Control Board under Business and Professions Code 8500, complete continuing education, and use only EPA-registered pesticides. Licensed applicators must deliver a written Wood Destroying Pests and Organisms Inspection Report for escrow transactions and post notices at least 48 hours before fumigation or major treatment in multi-family buildings. San Bernardino County Department of Public Health vector control handles mosquito and rodent abatement countywide, and West Nile virus fogging is coordinated with the West Valley Mosquito and Vector Control District. Property owners must drain standing water in containers, pools, and birdbaths. DIY pesticide use by homeowners on their own property does not require a license but must follow label directions. Reports of suspected rat infestations can be filed with San Bernardino Code Enforcement, triggering inspection and abatement orders.