A restored Victorian home on a tree-lined Central California street — Berkeley, California service area

Cockroach Control

Cockroach Control in Berkeley, CA

Name: 101 Exterminators Inc.
Address: 635 Sanborn Pl Ste 12, Salinas, CA, 93901, US
Telephone: (831) 500-1613

101 Exterminators does cockroach control in Berkeley with gel bait and insect growth regulators, not surface sprays that scatter a population into new harborage. German cockroaches (Blattella germanica) dominate kitchens and bathrooms in Berkeley's apartment stock; American cockroaches come up through drains and basements in the older flats near the culverted creeks. Species identification decides the treatment. SPCB Lic. #9119.

(831) 500-161310% off your first service · new customers

Local Context

The Roaches in a Berkeley Flat Are Not the Ones in the Basement

Two species, two completely different jobs. German cockroaches are small, tan, and live indoors permanently in warm harborage tight against food and water — the motor housing of a refrigerator, the void behind a dishwasher, the hinge of a cabinet door. They breed fast and develop resistance to pyrethroid sprays within a generation, which is why an over-the-counter can produces a good first week and a worse second month. In Berkeley they concentrate in the post-war apartment stock around campus and in Victorians and Craftsman houses long since divided into flats.

American cockroaches are the large reddish-brown ones, and they come from below. Berkeley's western flats sit over culverted creek channels and an old sewer network, and American cockroaches move through drains, basements, and sub-areas, then appear one at a time in a ground-floor bathroom or a basement laundry. A single big roach at night near a floor drain is a very different situation from a cluster of small ones behind a kitchen cabinet, and treating it like the first one wastes the visit.

Neither species is a verdict on the household. German cockroaches arrive in grocery boxes, appliances, moving cartons, and secondhand furniture, and in a Berkeley building with shared walls and stacked plumbing they spread from a neighboring unit through the chase, not through your kitchen. Clutter matters only because it multiplies harborage. Saying plainly what you have when you call is what gets the right protocol scheduled the first time.

How We Work in Berkeley

We identify the species before anything else, because the whole plan turns on it. For German cockroaches we place gel bait directly at harborage — behind and under refrigerators, dishwasher voids, cabinet hinges, motor housings — and add an insect growth regulator so the juveniles never reach breeding age. For American cockroaches we go after the entry route instead: floor drains, sub-area vents, basement penetrations, and the sewer cleanout. In a Berkeley multi-unit building we ask to check the adjoining units and the shared chases.

Berkeley Climate

Berkeley has marine influence near the bay and different conditions toward the hills. Weather does not identify a termite.

Housing Stock

Older houses and divided flats around the central neighborhoods can put structural wood behind finishes or in shared areas. The construction and later alterations determine which wood is visible.

Why Local Expertise Matters

In Berkeley, a subdivided house may need access arranged with more than one occupant or owner. Ask for the inspected areas, any limits, and the written basis for a treatment recommendation. A separate Section I/Section II report is available on request; the report itself does not decide a transaction’s repair terms.

Warning Signs

When to Ask About Cockroach Control in Berkeley

An assessment can look at the reported area, nearby food and water sources, and possible hiding places. The proposed plan may include monitoring, sanitation and leak corrections, exclusion, and targeted bait or other treatment appropriate to the species and site. If your business needs service records, name the required format before work begins.

Cockroaches seen in a kitchen, bathroom, storage area, or near a drain

Cockroach droppings (small, dark, pepper-like pellets) under sinks, behind appliances, or in cabinets

Egg cases (oothecae) — small, brown, capsule-shaped casings — in sheltered areas

Shed cockroach skins near harborage sites

Cockroach activity visible in commercial kitchen equipment, drain areas, or food storage

How It Works

What to Expect from Cockroach Control in Berkeley

Tell us where you have seen roaches and whether nearby rooms or units are affected. That helps us plan the inspection and treatment scope.

Identify the Pest and Activity

Share photos, a specimen if available, and dated sightings. An assessment can distinguish indoor breeding from outdoor entry and identify areas to inspect.

Check Food, Water, and Shelter

Look for leaks, food residue, gaps, and hiding places near the activity. Sticky monitors can help show where cockroaches are moving and provide a baseline for follow-up.

Agree on Targeted Work

Review the proposed bait, exclusion, sanitation, or other treatment, along with the rooms, preparation, and access it requires.

Review the Result

Compare sightings and monitor catches after service. If activity continues, ask whether another source, access gap, or change in the plan needs attention.

Why 101 Exterminators

Why Choose 101 Exterminators for Cockroach Control in Berkeley

Species Before Treatment

Indoor-breeding and outdoor-invading species call for different management choices. Identification helps set the scope.

Records for the Facility

Tell us what your manager or inspector asks to see, then confirm which service notes the written plan will provide.

Monitor After Service

Dated sightings and consistently placed traps help show whether activity is falling or a source remains.

Address Conditions That Sustain Activity

Food, water, shelter, and entry gaps are part of the assessment because pesticide alone may not solve the problem.

Common Questions

Cockroach Control FAQs for Berkeley

Why do German cockroaches come back after I spray in my Berkeley apartment?

Because the spray disperses them instead of removing them. German cockroaches develop pyrethroid resistance quickly, and a repellent surface product pushes survivors out of one harborage and into several new ones deeper in the wall and cabinet voids — so it looks better for a week and worse a month later. Gel bait works the opposite way: they eat it, carry it back, and share it. Stop spraying before treatment, or the bait gets contaminated and they avoid it.

Large reddish-brown roaches are coming out of the floor drain in my West Berkeley basement — what are they?

Almost certainly American cockroaches, which live in drains, sewer lines, and damp sub-areas rather than in your kitchen. They surface through dry floor drains, unsealed cleanouts, and gaps where plumbing enters a basement — and West Berkeley's low elevation over culverted creek drainage makes those routes busy. Keeping seldom-used floor drains filled with water restores the trap seal and closes the most common path. Treatment targets the entry points rather than the interior.

Can cockroaches be controlled in one Berkeley apartment if the neighbors are not treated?

You can knock the population down, but it will not hold if adjoining units are infested. German cockroaches move through shared wall voids and the plumbing chases that connect stacked kitchens and bathrooms in Berkeley apartment buildings, so an untreated neighbor is a continuous source. Sealing the chase penetrations and cabinet gaps in your unit helps considerably. The durable fix is getting the property manager to schedule adjoining units in the same visit.

Local Pest Pressure

Common Pests We Treat in Berkeley

Every area has its own pest profile shaped by climate, housing, and geography. These are the pests we see and treat most often in Berkeley — tap any one to learn how to identify it and what treatment involves.