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A modern craftsman home in a leafy Silicon Valley suburb — Mountain View, California service area

Rodent Control in Mountain View, CA

101 Exterminators handles rodent control in Mountain View exclusion-first: find the openings, seal them, then trap what is already inside. We are California licensed under SPCB Lic. #9119 and have worked Santa Clara County since 2005. Roof rats dominate here because Mountain View's 1950s and 1960s tracts came with deep yards, and seventy years later those yards grew a canopy that touches roofline after roofline.

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Stevens, Permanente and Adobe Creeks All Cross Mountain View, and Roof Rats Use All Three

Roof rats (Rattus rattus) climb, and Mountain View handed them a route. The ranch tracts in Rex Manor, Sylvan Park and Waverly Park were planted young in the 1950s and 1960s, and the street trees and backyard fruit trees, leftovers from the cherry, apricot and plum orchards that covered this valley before the subdivisions, now form a nearly continuous canopy. A rat crosses from a limb to a roof, works down the fascia, and finds a gap at the eave. It never touches your lawn.

Underneath that canopy, three creeks run north through the city to the Bay: Stevens Creek, Permanente Creek and Adobe Creek. Their banks and the storm drain system tied into them are year-round rodent corridors, and the tidal marsh and restored salt ponds at Shoreline are a reservoir of their own on the north edge. Shoreline West and North Whisman feel that first. The City Council adopted a Biodiversity and Urban Forest Plan in June 2026 to grow the tree canopy further, which is good for Mountain View and one more reason roofline clearance belongs in a rodent plan here rather than as an afterthought.

Inside, the attic is the target. A 1950s or 1960s Mountain View tract house has blown-in insulation, open truss bays and a roofline with a dozen candidate openings: eave vents, the joint where the fascia meets the rake, the plumbing vent boot, the dryer vent, a gable louver with torn screen. A rat needs about half an inch; a mouse needs a quarter.

How We Work in Mountain View

We map the runway before we set a single trap. On a Mountain View tract house that means walking the roof and eave line for rub marks and gnawing, checking the sub-area vents on the older bungalows downtown, and noting which limbs reach the roof. We seal with hardware cloth, copper mesh and sheet metal rather than foam alone, then set traps in the attic and along the interior runs. We come back to clear traps, replenish exterior stations and confirm the seals held.

Mountain View Climate

Mountain View sits mid-peninsula, warmer than San Francisco and milder than inland San Jose, with summer afternoons usually in the mid to upper 80s°F and rainfall around 14–16 inches a year. Drywood termite swarms come off in late summer and early fall, roughly August through October, and in Eichler tracts the wings usually turn up on the sill of a floor-to-ceiling window rather than in an attic nobody visits. The bay marsh at the north end keeps the air and the ground damper than the rainfall figure suggests, and morning fog reaches Shoreline far more often than it reaches the neighborhoods south of El Camino Real.

Housing Stock

Three kinds of building sit inside the same city limits and each needs a different inspection route. Old Mountain View, around Castro Street and the streets south of it, holds pre-war bungalows and a few Victorians on raised foundations, and the 1867 Rengstorff House now standing in Shoreline Park is the oldest of them. The 1950s and 1960s tracts, Monta Loma, Waverly Park, Cuernavaca, and the Sylvan Park area, are slab-on-grade, and the Eichler blocks among them are post-and-beam with exposed tongue-and-groove ceilings and radiant tubing in the concrete. Along El Camino Real and the transit corridor the stock turns to apartment and condominium buildings of every decade, which is where bed bugs and German cockroaches (Blattella germanica) actually move, unit to unit rather than in from the yard. A raised bungalow lets an inspector under the floor. An Eichler does not, and the evidence has to be read off surfaces instead.

Why Local Expertise Matters

An Eichler is not a hard house to inspect, but it is an easy house to inspect wrong. There is no attic and no crawl space, so the evidence sits on the exposed beams, the fascia, the tongue-and-groove decking, and the line where siding meets slab, and an inspector working from habit will look for access that does not exist and call the house clean. The slab has its own trap, because radiant heating tubes run inside it, and drilling for a subterranean treatment without knowing where they run turns a termite job into a plumbing repair. We work the Eichler tracts, the Castro Street bungalows, and the El Camino apartment corridor, and we write WDO reports for Santa Clara County transactions. 101 Exterminators, SPCB Lic. #9119, licensed since 2005.

Signs You Need Rodents Service in Mountain View

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

Our Rodents Process in Mountain View

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

01

Inspection & Runway Mapping

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

02

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.

03

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.

04

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.

Rodents You Can Count On in Mountain View

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.

Rodent Control FAQs for Mountain View

Why do Mountain View homes get roof rats instead of Norway rats?

Roof rats are the climbers, and Mountain View is built for climbing. The mature street and fruit-tree canopy over the 1950s and 1960s tracts lets them travel above ground from yard to roof, so activity shows up as attic noise and eave-line damage rather than burrows in the lawn. Norway rats do occur here, mostly along the creek channels and around commercial dumpsters, and they stay low: ground floor, sub-area, sewer lateral.

Do I have to cut down the trees around my Mountain View house to keep rats out?

You need clearance, not removal. Trimming limbs so nothing overhangs or touches the roof takes away the bridge, and picking up dropped fruit takes away the reason to cross. The orchard leftovers in Sylvan Park and Waverly Park yards are a real late-summer food source. Sealing the roofline still matters, because a rat that can reach the roof off a fence or a downspout will find the eave gap anyway.

I hear scratching in the ceiling of my house near Whisman Station: what is that?

Scratching or running overhead after dark is almost always roof rats in the attic or a ceiling joist bay. Mice make lighter, faster sounds, and squirrels are active in daylight. Around North Whisman the creek corridors and the older garden-apartment blocks both hold rat populations, so the entry is usually at the roofline rather than at ground level. The next step is an attic inspection. Droppings and runways identify the species and the scale.

Free Pest Evaluation in Mountain View

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

Trusted by Mountain View families since 2005