101 Exterminators
Service Areas
Pests
Articles
Guides
A California craftsman-style home at golden hour in a Central California neighborhood — Burlingame, California service area

Cockroach Control in Burlingame, CA

101 Exterminators does cockroach control in Burlingame with gel bait, insect growth regulators and targeted void treatment instead of surface sprays that scatter a population into new harborage. We are licensed under SPCB Lic. #9119 and have worked since 2005. In the pre-war apartment buildings around Lyon-Hoag and off Broadway, German cockroaches move between units through shared plumbing chases. That is a plumbing-and-construction condition, and it has nothing to do with how a unit is kept.

(831) 500-1613Free pest evaluation · no obligation

Get a Free Estimate

Shared Plumbing Chases Move Roaches Between Units in Burlingame's Pre-War Buildings

German cockroaches (Blattella germanica) live where it is warm, humid and tight, which in Burlingame usually means the wall void behind a kitchen or bathroom rather than the room itself. The pre-1940 buildings around Lyon-Hoag and the blocks off Broadway stack units around common plumbing chases, and a chase is a heated highway running floor to floor. That is how a spotless apartment gets cockroaches while the actual source is two doors down. Naming it as a building condition is what aims the treatment at the right place.

American cockroaches (Periplaneta americana) arrive from the opposite direction. They live in sewers, storm drains, sub-areas and floor drains, and they are large enough that people assume the problem is worse than it is. In Burlingame we find them coming up drain lines in older commercial basements along Burlingame Avenue, and out of damp sub-areas under pre-1940 houses near Mills Creek and Easton Creek where the soil stays wet through the rainy season. One big roach in a bathroom at night is usually a plumbing story, not a colony in the walls.

Method decides the outcome more than the product does. German cockroaches develop resistance to pyrethroid sprays quickly, and a repellent spray applied at a harborage does something worse than fail. It disperses the population into new voids where reaching it gets harder. Gel bait works because roaches feed and then transfer the material to others in the harborage, and an insect growth regulator keeps the juveniles from reaching breeding age. That is what brings a population down over weeks rather than only removing the adults you can see.

How We Work in Burlingame

We inspect with a flashlight and a mirror before placing anything. In a Burlingame kitchen that means behind and under the refrigerator, the dishwasher motor housing, cabinet door hinges, under the sink, and the void where plumbing passes through the wall. In an older apartment we ask to see the adjoining units too, because the chase is the road they use. Gel bait goes at harborage sites with an insect growth regulator alongside it, and we seal the penetrations so that route stops working.

Burlingame Climate

Burlingame has a mild Peninsula climate — warmer than Daly City, partially sheltered from marine fog by the San Francisco Peninsula geography. Summer temperatures regularly reach the mid-70s°F, supporting drywood termite swarm activity from May through October. Annual rainfall of 19–21 inches.

Housing Stock

Burlingame Park, the Easton Addition, and the residential neighborhoods around downtown have significant pre-1940 Craftsman and Colonial Revival housing stock with original wood framing. These properties have the highest drywood termite risk in the city. Post-WWII development in Burlingame Hills and the Alcazar area represents newer construction with lower but non-zero termite risk. Broadway corridor commercial buildings include older structures with termite histories.

Why Local Expertise Matters

Burlingame's pre-1940 Craftsman and Colonial Revival homes require the same specialist approach as Oakland and Berkeley's historic neighborhoods. We understand the termite vulnerability of original old-growth framing, the treatment options appropriate for historic structures, and the WDO reporting standards expected in Burlingame's high-value real estate transactions. SPCB License #9119.

Signs You Need Cockroaches Service in Burlingame

Species-specific treatment using gel baits, insect growth regulators (IGRs), and targeted void treatments. Gel bait is placed directly at harborage sites — behind refrigerators, under sinks, inside wall voids — where cockroaches consume and transfer it to others in the colony. IGRs prevent juvenile cockroaches from reaching reproductive maturity, collapsing the population within 2–4 weeks. Commercial kitchen programs include written documentation of conducive conditions for health inspection compliance.

Live cockroaches seen during the day — indicates a large infestation overflowing harborage sites

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

Musty or oily odor in kitchen, bathroom, or utility areas

Shed cockroach skins near harborage sites

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

Our Cockroaches Process in Burlingame

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

01

Inspection & Species ID

We identify the cockroach species and locate all harborage sites — behind refrigerators, under sinks, inside wall voids, and in any warm, dark area near moisture or food. Species identification determines the correct bait and treatment approach.

02

Bait Application

Gel bait is placed at harborage sites in quantities cockroaches will find and consume. Bait is formulated to be transferred between individuals — a single fed cockroach will infect others in the colony, reaching the full population.

03

IGR Treatment

Insect Growth Regulators (IGRs) prevent juvenile cockroaches from reaching reproductive maturity, collapsing the population within 2–4 weeks even without direct contact with adults.

04

Exclusion & Prevention

We identify and seal gaps around plumbing penetrations, appliances, and wall voids that provide harborage. For commercial kitchens, we provide a written report of conducive conditions for health inspection compliance.

Cockroaches You Can Count On in Burlingame

Bait-Based Treatment

Gel bait reaches cockroaches that surface sprays cannot — inside appliances, wall voids, and harborage sites that sprays would scatter.

Health Inspection Ready

Our commercial cockroach programs are documented and meet California health department expectations for food-handling facilities.

IGR Included

Insect Growth Regulators prevent resistant survivors from reproducing, ensuring the population collapses rather than rebounds.

No Surface Spray Scattering

Broad spray applications push cockroaches into new harborage areas. Our targeted approach eliminates colonies in place.

Cockroach Control FAQs for Burlingame

My Burlingame apartment is clean — how did I get cockroaches?

Through the building, almost always. German cockroaches travel between units along shared plumbing chases, wall voids and utility penetrations, and in Burlingame's pre-war apartment stock those routes connect every kitchen and bathroom in the stack. Cleanliness affects how fast a population grows, not whether one arrives. The response that works is treating the harborage, sealing the penetrations, and asking the manager whether neighboring units are being serviced at the same time.

A big roach came up the bathroom drain in my Burlingame house — is that an infestation?

Usually not, because that is an American cockroach and it is telling you about the plumbing rather than the house. They live in sewers, storm drains and damp sub-areas, and they get in through a dried-out P-trap in a rarely used fixture, an unsealed cleanout, or a gap where a drain line passes through the floor. Running water in unused fixtures, capping open lines and drying the crawl space usually settles it. Repeat sightings in daylight are worth an inspection.

Why did the cockroaches in my Burlingame kitchen get worse after I sprayed?

Because repellent sprays scatter a German cockroach population instead of ending it. When the harborage turns hostile the survivors push deeper into wall voids, behind appliances and into adjoining rooms, then breed there out of reach, so next month the population is spread across more places than before. Gel bait works the opposite way: roaches feed and carry the material back into the harborage. That is why we bait a kitchen rather than spray it.

Free Pest Evaluation in Burlingame

CA licensed and insured. Written estimate before any work begins. Urgent situations in Burlingame are prioritized.

Trusted by Burlingame families since 2005