A California craftsman-style home at golden hour in a Central California neighborhood — Millbrae, California service area

Rodent Management

Rodent Control in Millbrae, CA

Name: 101 Exterminators Inc.
Address: 635 Sanborn Pl Ste 12, Salinas, CA, 93901, US
Telephone: (831) 500-1613
Price range: $$
Rating: 5

101 Exterminators handles rodent control in Millbrae with exclusion first, sealing the way in before setting a single trap. SPCB Lic. #9119, California licensed since 2005. Millbrae takes rats from two directions at once: roof rats down through the mature canopy in Mills Estates and Green Hills, and Norway rats up from the Bay shoreline and the storm drains that carry Millbrae Creek under the streets.

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

Local Context

Roof Rats Come Down From Mills Estates and Norway Rats Come Up From the Bay Shoreline

Millbrae is a small city pinched between two rodent reservoirs. On the west, the city line abuts the protected SFPUC Peninsula Watershed around San Andreas Lake, thousands of acres of undeveloped land with no interior structures. On the east, past Rollins Road and the freeway, the shoreline runs into tidal mudflat and marsh. Rodents move off both edges toward the warm, dry middle, and the middle of this city is residential.

Roof rats (Rattus rattus) come from the uphill side. They travel canopy, fence tops and utility lines instead of the ground, and the mature landscaping through Mills Estates and the blocks around Green Hills Country Club gives them a continuous route. They enter high: a gap where roof meets wall, an unscreened attic vent, a plumbing stack collar, the top corner of a garage door. On the low-slope roofs common through Millbrae Meadows there is barely any attic to absorb the sound, so owners hear them almost immediately.

Norway rats work the other direction, using sewer lines, storm drains and the culverts that carry Millbrae Creek beneath the streets. They enter low: crawl-space vents, foundation gaps, utility penetrations behind the kitchen. The raised-foundation homes along the older El Camino Real corridor are the ones we most often find with a sub-floor entry that has been standing open for years.

How We Work in Millbrae

Trapping without sealing only makes room for the next rat, so we start with a full exclusion survey. On a hillside Millbrae property that means the roofline: vents, the roof-to-wall junction, stack collars, eave gaps, and the tree limbs and fence tops feeding the roof. On the flats we work the crawl space, foundation vents and utility penetrations instead. We seal with hardware cloth, copper mesh and sheet metal, trap inside the structure, and monitor tamper-resistant exterior stations along the runways we actually find.

Millbrae Climate

Millbrae has a mild Peninsula climate with some Bay moisture influence from the east. Less fog-affected than Daly City to the north, with summer temperatures in the mid-70s°F. Both drywood and subterranean termites are active across a full season.

Housing Stock

Post-WWII housing stock (1940s–1960s) dominates. Older properties along the El Camino corridor and the hillside neighborhoods date to the 1920s–1930s. The airport corridor has significant commercial real estate alongside residential. Condominiums and townhouse complexes near the BART station represent newer construction.

Why Local Expertise Matters

We serve Millbrae as part of our comprehensive San Mateo County coverage. SPCB License #9119. WDO reports accepted by all Peninsula real estate agents and title companies.

Warning Signs

Signs You Need Rodents Service in Millbrae

Our program combines three components: (1) Exclusion — sealing gaps in foundations, pipe penetrations, vents, and roof eaves using hardware cloth, copper mesh, foam sealant, and sheet metal as appropriate. (2) Trapping — placement and monitoring of snap traps, live traps, and glue boards in active areas. (3) Exterior bait stations — tamper-resistant bait stations positioned along perimeter rodent runways for ongoing population management.

Droppings along walls, in cabinets, behind appliances, or in attic insulation

Gnaw marks on wiring, wood, plastic pipes, or food packaging

Grease marks along walls or baseboards — oil from rodent fur rubbed repeatedly on surfaces

Nesting materials (shredded paper, insulation, fabric) in hidden locations

Scratching or scurrying sounds in walls, ceilings, or under floors at night

Burrows in landscaping, mulch beds, or under concrete slabs

Citrus or avocado fruits with bite marks — a classic roof rat indicator

Pet acting alert at walls or cabinets when no visible cause exists

How It Works

Our Rodents Process in Millbrae

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

Inspection & Runway Mapping

We identify gnaw marks, runways, burrows, droppings, and grease trails to map rodent activity throughout the property — interior and exterior.

Exclusion

We seal all discovered entry points with durable materials appropriate to the opening — hardware cloth, copper mesh, sheet metal flashing, or foam sealant for smaller gaps.

Trapping & Bait Placement

Interior snap traps and exterior tamper-resistant bait stations are positioned along active runways. We monitor and service these on a schedule until activity ceases.

Follow-Up & Monitoring

We return to clear traps, replenish bait, check exclusion work, and confirm that the population has been eliminated before closing out the service.

Why 101 Exterminators

Rodents You Can Count On in Millbrae

Exclusion-First Methodology

Without sealing entry points, any rodent removed will simply be replaced by another. We seal the structure before or concurrent with trapping — not as an afterthought.

No Unmonitored Poison Bait Indoors

We do not place loose rodenticide indoors where rodents can carry it to walls and die inaccessibly. Interior work uses traps with daily monitoring during active treatment.

Regional Species Knowledge

Norway rats, roof rats, and deer mice behave differently and require different approaches. We identify the species present before selecting treatment methods.

Sanitation Recommendations

After resolving an infestation, we advise on harborage removal, vegetation management, and food storage to prevent reinfestation — not just a repeat service call.

Common Questions

Rodent Control FAQs for Millbrae

How do rats get into a Millbrae house with a low-slope mid-century roof?

They come in at the edges rather than through the middle. The Stoneson-built houses through Millbrae Meadows have low-slope roofs with wide overhangs and limited attic space, so roof rats enter at the roof-to-wall junction, at unscreened vents, around plumbing stack collars, and at the top corners of garage doors, then live in soffits, wall voids and the shallow space above the ceiling. With no deep attic to muffle them, most owners hear activity within a night or two of the first entry.

Does the mature tree canopy around Green Hills bring rats into nearby Millbrae yards?

Dense canopy helps rats move, so it acts as a highway rather than a source. Roof rats prefer to travel above ground on branches, fence tops and utility lines, and any limb within a few feet of a roof is a bridge onto the structure. Trimming vegetation back off the roofline and breaking fence-to-roof contact removes the route. On Millbrae hillside lots that one change often drops the pressure before any trapping starts.

Are rodents a problem near the Millbrae shoreline and Rollins Road?

The Bay edge is Norway rat ground, and those rats travel by culvert, storm drain and soil rather than by canopy. Properties on the flat east side of Millbrae get entry at the foundation line: crawl-space vents, utility penetrations, gaps under thresholds, worn garage door sweeps. Sealing at ground level and keeping bins, pet food and compost closed does most of the work. Exterior bait stations go along the runways we identify, not scattered around the yard.

Local Pest Pressure

Common Pests We Treat in Millbrae

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