101 Exterminators
101 Exterminators
(831) 500-1613

Wasp & Bee Removal in San Francisco, CA

Yellow Jackets · Paper Wasps · Hornets · Honey Bee Relocation

Stinging insect nests near entry points, play areas, or in structural voids are a safety risk — especially for anyone with venom allergies. 101 Exterminators' wasp and bee removal service uses protective equipment and species-appropriate techniques to eliminate or relocate nests safely. Serving San Francisco and surrounding San Francisco County.

Why San Francisco Homes Need Wasps & Bees Services

Yellow jacket pressure in Central California peaks in late summer (August–October) as colonies reach maximum population and foragers range aggressively in search of protein and sugar. Paper wasps build open-comb nests under eaves, in pergolas, and in attic vents throughout all four counties. Honey bee swarms are common in spring, particularly in Monterey County's orchard-adjacent areas — swarms often settle temporarily in hedges, trees, or structures before establishing a permanent hive.

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.

San Francisco Climate

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.

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.

Signs You Need Wasps & Bees Service in San Francisco

We treat yellow jacket nests (including in-ground and wall-void nests), paper wasp nests under eaves and overhangs, European and bald-faced hornet nests, and mud dauber tubes. For honey bee hives established in walls or structures, we provide complete treatment and nest removal including comb excavation to prevent future odor and secondary pest attraction. For accessible swarms, we can arrange transfer to a local beekeeper.

Visible nest under eaves, in shrubs, attached to window frames, in tree cavities, or in attic vents

Repeated wasp activity near a specific location on the structure — nest is likely nearby

Wasp or bee activity around a specific gap, crack, or vent opening — indicates cavity nest inside

In-ground yellow jacket activity — small hole in soil or mulch bed with wasps entering and exiting

Honey bee swarm visible on a tree, shrub, or structure — usually a temporary cluster

Buzzing sounds within walls, soffits, or chimney area — established honey bee hive

Our Wasps & Bees Process in San Francisco

Every job follows the same methodical approach — no shortcuts, no guesswork. Here is what to expect when you work with us in San Francisco.

01

Species & Nest Location

We identify the species and locate all nesting sites, including in-wall or structural voids that require special access. Species determines the treatment approach.

02

Treatment in Protective Equipment

Our technicians treat nests in full protective equipment — veil, suit, and gloves. Evening treatment is preferred for ground nests when foragers have returned to the nest.

03

Nest Removal

After treatment, accessible nests are physically removed. For wall-void nests, we advise on comb removal to prevent secondary pest attraction from wax, honey, and larval material.

04

Entry Point Sealing

We seal entry points used by cavity-nesting species to prevent re-colonization by a new colony in the same location.

Wasps & Bees You Can Count On in San Francisco

Bee Relocation Option

When possible, we work with local beekeepers to relocate honey bee swarms and accessible hives rather than exterminating them. Good for bees, good for local agriculture.

Wall-Void Nest Removal

Nests inside walls require more than just treatment — the comb must be removed to prevent honey seepage, secondary pests, and odor. We handle the complete remediation.

Same-Day Service for Emergencies

A wasp nest near an entry door, child's play area, or pet run is a safety emergency. We prioritize same-day or next-day service for these situations.

Evening Ground Nest Treatment

Yellow jacket ground nests are treated at dusk when the full colony has returned, maximizing effectiveness and minimizing any risk of disrupted forager activity.

Wasp & Bee Removal FAQs for San Francisco

How do I know if I have yellow jackets vs. paper wasps?

Yellow jackets are stocky, bright yellow and black, and build papery nests in ground cavities, wall voids, or hollow trees. They are highly aggressive when the nest is disturbed. Paper wasps are slender with long legs and build open, umbrella-shaped comb nests (no papery cover) under eaves. Paper wasps are less aggressive and will only sting if directly handled or if the nest is disturbed.

Should I remove a wasp nest myself?

We strongly recommend against it. Yellow jacket colonies in late summer can contain 4,000–5,000 individuals and will mount a coordinated defensive sting response if disturbed. For people with known or unknown venom allergies, a single encounter can be life-threatening. Ground nests are especially hazardous because the full colony can emerge instantly.

When should I call for wasp removal vs. waiting until winter?

Most wasp colonies die off naturally in winter — only new queens survive to start new colonies in spring. If the nest is in a low-traffic area and not a safety concern, waiting until winter is a reasonable approach. If the nest is near entry doors, children's play areas, or poses a sting risk to family or pets, treatment should happen promptly regardless of season.

Free Wasps & Bees Inspection in San Francisco

CA licensed and insured. Written estimate before any work begins. Same-day response available for urgent situations in San Francisco.

Trusted by San Francisco families since 2005