San Francisco Termite Control
San Francisco Termite Specialists — Victorian Homes & WDO Inspections
Drywood & Subterranean Termite Treatment · Section 1 & 2 WDO Reports · SPCB Licensed
San Francisco's 1870s–1915 Victorian and Edwardian housing stock represents the most concentrated drywood termite habitat in the Bay Area. Old-growth redwood and fir framing in these structures has been exposed to termite colonies for over a century, and in row house configurations those colonies can spread laterally across multiple units without ever swarming to establish new infestations. 101 Exterminators provides SPCB-licensed termite inspection and treatment for San Francisco homeowners, HOAs, and real estate professionals — with the local knowledge to navigate the city's specific building configurations, pesticide regulations, and real estate transaction requirements.
Local Intelligence
Understanding San Francisco
Effective pest control begins with understanding the specific conditions that drive pest activity in your area. Here is what shapes the pest landscape in San Francisco.
Climate & Weather
San Francisco's marine climate — persistent fog, moderate temperatures, and year-round mild humidity — supports continuous termite colony activity without winter dormancy. Western neighborhoods (Sunset, Richmond) stay foggy and moist; eastern neighborhoods (Mission, Castro, Noe Valley) are warmer, favoring drywood termite swarm activity May–October.
Housing Stock
The city has approximately 20,000+ pre-1915 Victorian and Edwardian structures, many with original old-growth redwood and fir framing never comprehensively treated for termites. Row house configurations — where buildings share party walls — allow colony spread without typical swarming evidence. Post-1906 and post-WWII construction have separate but significant termite vulnerabilities.
Geography & Landscape
The 49-square-mile city has distinct termite zones by neighborhood: fog-belt western districts favor subterranean termites; central and eastern districts with warmer microclimates favor drywood termites; hilltop neighborhoods with drainage issues see dampwood termites in chronically wet framing.
Pest Pressure
Drywood termites in pre-1940 framing are the dominant concern. Subterranean termites active in fog-belt soil. Real estate transaction volume is among the highest in California — WDO inspections are a routine part of every property sale. Swarm season May–October for drywood; February–April for subterranean.
Most Active Species
Priority Pests in San Francisco
These are the pests we see most frequently — and treat most effectively — in San Francisco. Each one reflects the specific environmental conditions of this area.
What We Offer
All Services Available in San Francisco
Every service we provide is available throughout San Francisco. From termite inspections and fumigation to ongoing pest maintenance programs and crawl space services, we are your single point of contact for any pest challenge.
Why Local Expertise Matters
San Francisco termite work is a specialty. Row house fumigation logistics, the city's pesticide ordinances, historic building treatment constraints, and the specific WDO reporting format expected by SF real estate agents all require local expertise. We hold SPCB License #9119 and have direct experience with these city-specific factors.
Part of San Francisco County
San Francisco is part of our San Francisco County service area. We serve all surrounding communities in the county.
San Francisco County service area20+
Years Serving Central California
A+
BBB Rating
4
Counties Covered
5★
Google Rating
Local Questions
San Francisco Pest Control FAQs
Can you fumigate a row house in San Francisco without affecting neighbors?
Whole-structure fumigation of a row house requires coordination with adjacent property owners and typically a structural isolation assessment. In many cases, alternative treatments (orange oil, heat) are preferable for row houses where fumigation coordination is impractical. We assess each situation and recommend the most effective feasible approach.
How quickly can you provide a WDO report for a San Francisco real estate transaction?
We understand that SF real estate timelines are compressed. We schedule inspections within 2–3 business days and deliver written WDO reports within 24 hours of inspection. Call us directly at (831) 500-1613 to discuss urgent transaction timelines.
Are there restrictions on termite treatments in San Francisco?
San Francisco has stricter regulations on certain pesticide applications than many California jurisdictions. We use approved treatment methods including orange oil (XT-2000), heat treatment, and licensed fumigants. We stay current on all local regulations and apply only approved products per SPCB licensing requirements.
Serving San Francisco
Free Pest Inspection in San Francisco
CA licensed and insured. Written estimate before any work begins. Same-day response available for urgent pest situations.