Structural Pest Control
Termite Control in South San Francisco, CA
101 Exterminators handles termite control in South San Francisco as a California-licensed structural pest company, SPCB Lic. #9119, in business since 2005. The city's median house dates to 1974, but the bungalows around the Grand Avenue Historic District went up decades earlier. Which termite you have here depends mostly on how much fog your block takes through the San Bruno Gap. We inspect, report by section, then treat.
Warning Signs
Signs You Need Termites Service in South San Francisco
We perform thorough visual inspections of all accessible structural wood, attic spaces, crawl spaces, fencing, and exterior wood. Our reports clearly distinguish Section 1 conditions (active infestations requiring immediate treatment) from Section 2 conditions (conditions that are likely to lead to infestation). We issue California-required WDO reports for real estate transactions and carry the licensing required by the Structural Pest Control Board.
Hollow-sounding wood when tapped — galleries eaten from inside
Frass (fine sawdust-like pellets) near baseboards or windowsills — drywood termite excrement
Discarded wings near doors or windows in spring — swarmers leaving to start new colonies
Blistering or bubbling paint on wood surfaces — subterranean tunnel activity underneath
Mud tubes running up foundation walls or piers — subterranean termite foraging trails
Soft or sagging flooring near walls — severe structural damage to subfloor joists
Small holes in wood with discoloration around the edges
Real estate transaction requiring a WDO inspection and clearance report
How It Works
Our Termites Process in South San Francisco
Every job follows the same methodical approach — no shortcuts, no guesswork. Here is what to expect when you work with us in South San Francisco.
Comprehensive Inspection
Our licensed inspector examines all accessible wood, crawl spaces, attic framing, exterior siding, eaves, and fencing. We document every finding with photos and written notes.
WDO Report & Recommendations
Within 48 hours, you receive a state-compliant Structural Pest Control Report distinguishing active infestations, wood damage, and conducive conditions. No confusing fine print.
Targeted Treatment Plan
We recommend the most effective and least invasive treatment — whether that's localized spot treatment, fumigation for widespread drywood infestation, or subterranean bait systems.
Treatment & Clearance
We execute the treatment per plan, return for any follow-up needed, and issue a Completion Notice clearing the structure once all Section 1 items are resolved.
Why 101 Exterminators
Termites You Can Count On in South San Francisco
State-Licensed Inspectors
Our inspectors hold California Structural Pest Control licenses and are compliant with SPCB regulations for both inspections and treatments.
WDO Reports for Real Estate
We issue the Structural Pest Control Reports required for California home sales, refinancing, and VA/FHA loans — accepted by all lenders and escrow companies.
Both Termite Species Covered
Central California has both drywood and subterranean termites. We identify which species is present and apply the treatment protocol specific to each.
Free Re-Inspection Policy
If signs return within our warranty period, we come back at no charge. Our work is backed, not just guaranteed on paper.
Common Questions
Termite Control FAQs for South San Francisco
Do houses in Westborough get a different termite than houses below Sign Hill?
Usually yes — fog exposure sorts them. Westborough, Buri Buri and Winston Manor sit in the marine flow through the San Bruno Gap, so soil stays damp and subterranean termites (Reticulitermes) dominate, leaving mud tubes on stem walls and pier blocks. The warmer bay-facing slopes below Sign Hill favor western drywood termites (Incisitermes minor), which live inside the wood and drop frass pellets. The treatments are not interchangeable, so the inspection has to establish which one you have.
When do termites swarm in South San Francisco?
Drywood swarms come on warm evenings in late summer and fall; subterranean flights follow the winter rains between November and March. Summer highs here sit between 68 and 74°F with September the warmest month, so drywood flights cluster later than they do in hotter inland cities. What people notice is usually not the flight but the wings — small discarded wings on a windowsill or inside a light fixture. Save a few, because identification changes the treatment.
Our South San Francisco house is stuccoed all the way around — can termites still get in?
Yes. Stucco hides framing; it does not seal it. Drywood termites enter at the weathered wood stucco never covered — rafter tails, fascia, eave blocking, window and door trim — and subterranean termites come up from the soil behind it, sometimes running shelter tubes in the gap between the wall and the finish. Stucco mainly makes the evidence harder to see from outside, which is why the attic and the sub-area matter more on these houses than the walls do.
Local Pest Pressure
Common Pests We Treat in South San Francisco
Every area has its own pest profile shaped by climate, housing, and geography. These are the pests we see and treat most often in South San Francisco — tap any one to learn how to identify it and what treatment involves.
Termite Control · South San Francisco
Free Limited Termites Inspection in South San Francisco
CA licensed and insured. Written estimate before any work begins. Same-day response available for urgent situations in South San Francisco.