A mid-century modern Eichler-style home in a Silicon Valley neighborhood — San Jose, California service area

Flea & Tick Elimination

Flea & Tick Control in San Jose, 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 flea and tick control in San Jose by treating the house and the yard, not only the pet — the adult fleas on an animal are a small share of the actual population. We are California licensed under SPCB Lic. #9119, working Santa Clara County since 2005. Cat fleas (Ctenocephalides felis) are the species here, and the reservoir is usually shaded ground where wildlife crosses.

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

Local Context

Foothill Wildlife Keeps Reseeding Fleas Into Yards Along the Diablo Range Edge

The San Jose homes that call about fleas repeatedly are the ones with a wildlife corridor at the back fence. Properties in the East Foothills and Evergreen near Alum Rock Park and Joseph D. Grant County Park, and hillside lots above Almaden Valley near Almaden Quicksilver County Park, back onto open space where raccoons, opossums, feral cats and ground squirrels travel nightly. Those animals drop cat flea (Ctenocephalides felis) eggs under decks, in crawl spaces and along shaded fence lines. Treat the house alone and the yard reloads it inside a week.

The climate lets the cycle run long. Warm dry summers averaging near 82°F and winters whose lows average near 41°F keep flea development going through most of the year, and shaded irrigated ground — under a deck, along a north-facing fence, beneath the shrubs — holds the humidity larvae need through the rainless months. The pupal stage is why a house that seemed clear erupts a week after treatment: pupae are protected inside their cocoons and hatch in response to vibration.

Ticks arrive by a different route. Western black-legged ticks live in the leaf litter and grass edges along the trails at Alum Rock Park and Almaden Quicksilver, so they usually come home on a dog rather than breeding in a San Jose yard.

How We Work in San Jose

We look for the reservoir before we treat the living room. Under the deck, the crawl space access, the shaded side yard, the spot in the dirt where the dog lies down, and any gap under a fence where wildlife crosses — those are what keep a San Jose flea problem running. Interior treatment pairs an adulticide with an insect growth regulator so eggs and larvae never reach breeding age, and outdoors we treat the shaded harborage rather than the whole lawn. Run your veterinarian's product the same day.

San Jose Climate

San Jose's Silicon Valley location produces warm, dry summers (regularly 90–100°F in July–August) and mild winters. The Santa Cruz Mountains to the west create a partial rain shadow, giving San Jose less rainfall than coastal areas. Heat drives insects toward cooler building interiors in summer. The mild winters support year-round cockroach and ant activity without the winter die-off seen in colder climates.

Housing Stock

San Jose has neighborhoods with housing from nearly every decade since the 1920s. Willow Glen, Japantown, and downtown neighborhoods have craftsman and Victorian homes with significant termite histories. Berryessa, Cambrian, and east side neighborhoods have post-war construction (1950s–1970s) with aging pest barriers. North San Jose and newer developments have modern construction. Multi-family housing throughout the city creates bed bug and cockroach transmission pathways between units.

Why Local Expertise Matters

San Jose's diversity — in neighborhood character, housing age, and industry mix — requires a pest control partner with genuine breadth of experience. We bring our 20+ years of service across four Central California counties to San Jose customers, combining urban commercial pest management expertise with the regional knowledge of a company that understands the larger pest ecology of the Santa Clara Valley.

Warning Signs

Signs You Need Fleas & Ticks Service in San Jose

Inside the home we pair an adulticide with an insect growth regulator, which keeps eggs and larvae from ever reaching the breeding stage. Outside we treat the shaded ground where larvae survive, plus the fence lines, wood piles, and crawl space openings that wildlife uses as a highway. Tick work concentrates on the boundary between mowed yard and unmanaged brush, since that strip is where questing ticks meet people and dogs. We also walk the property for the entry points that keep bringing fleas back, and we explain what your veterinarian needs to handle on the animal, because the environment and the pet only work when they are handled together.

Pets scratching or chewing at the base of the tail, the belly, and behind the ears

Flea dirt in pet bedding: dark pepper-like specks that turn rust red on a damp paper towel

Bites in tight clusters on ankles and lower legs, usually a few in a row

Small dark insects that disappear into carpet pile the moment you part the fur

A burst of biting a day or two after a vacation, or on the first day in a vacant rental

Fleas in a home with no pets, which usually points to wildlife living under the structure

Ticks found on a dog after time in the yard rather than after a hike

An attached tick on a family member, or a rash, fever, or joint ache in the weeks after a bite

How It Works

Our Fleas & Ticks Process in San Jose

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

Inspection & Source Identification

We look for flea dirt where it collects, check crawl spaces and the shaded ground under decks and hedges, and note where opossums, raccoons, and ground squirrels are moving through the property. For ticks we walk the line where kept lawn meets brush, since that strip carries most of the exposure. What the inspection turns up sets the treatment, rather than a standard package set in advance.

Interior Treatment

Interior work pairs an adulticide for the fleas you can see with an insect growth regulator for the ones you cannot. The growth regulator keeps eggs and larvae from developing into breeding adults, and it goes where eggs settle: carpet, the base of upholstered furniture, pet resting spots, and along baseboards. On hard floors we work the edges and cracks, where debris feeds developing larvae.

Yard & Property Edge

Flea larvae do not survive in open sun, so yard treatment targets shade: under decks and stairs, beneath dense shrubs, along the north side of the house, and wherever the dog lies down. Tick treatment follows a different line, the border where mowed yard gives way to tall grass, leaf litter, and brush. Treating the whole lawn misses both.

Pet Coordination & Follow-Through

Treating the house without the animal, or the animal without the house, puts you back where you started. We coordinate timing so your veterinarian's product goes on the pet the same day we treat, and we walk you through the vacuuming schedule that pulls pupae out of the carpet. Vacuuming does more than clean here, since the warmth and pressure signal cocooned adults to emerge onto treated surfaces.

Why 101 Exterminators

Fleas & Ticks You Can Count On in San Jose

Growth Regulator in the Plan

An adulticide handles the fleas jumping today. The insect growth regulator works on the eggs and larvae buried in carpet and yard shade, which is where the great majority of the population is sitting at any moment.

Yard and Property Edge Treated

Indoor-only treatment leaves the outdoor source running. We treat the shaded ground where flea larvae survive and the brush line where ticks wait for a host to walk by.

Wildlife Source Assessment

Homes along open space, creek corridors, and farm edges get fleas delivered by opossums, raccoons, and ground squirrels. We find the openings those animals are using and tell you what needs closing.

Coordinated With Your Veterinarian

We time the visit around the product your vet has prescribed, and you get written prep and re-entry steps so the two halves of the job line up instead of canceling each other out.

Common Questions

Flea & Tick Control FAQs for San Jose

Why do fleas keep coming back at my San Jose home even though the dog is treated?

Because the pet is the smallest part of the population. Adult fleas on the animal are a fraction of the total; the eggs, larvae and pupae sit in carpet, pet bedding, the crawl space and the shaded ground outside. If the yard reservoir goes untreated — particularly on properties backing open space in the East Foothills or above Almaden Valley — wildlife and the dog keep restocking the house. Treating pet, interior and yard inside the same window is what breaks the cycle.

Can I get fleas in a San Jose house with no pets?

Yes, and it usually traces to wildlife that nested under or inside the structure. Raccoons and opossums under a deck, feral cats in a crawl space, or roof rats in the attic all carry cat fleas, and when the animal leaves or is removed the hungry fleas move toward the nearest host indoors. The same thing happens after moving into a San Jose rental where the previous tenant had pets, since pupae can wait months and hatch on the vibration of new footsteps.

Do I need to worry about ticks in San Jose yards, or only on the trails?

Mostly on the trails. Western black-legged ticks live in leaf litter, grass edges and brush along the trail systems at Alum Rock Park, Almaden Quicksilver County Park and the Sierra Azul preserve edge, and they typically ride home on a dog or on clothing rather than establishing in an irrigated San Jose yard. Properties sitting directly against open space are the exception. Check dogs after hikes, keep the grass cut along the fence line, and clear leaf litter where the yard meets the brush.

Local Pest Pressure

Common Pests We Treat in San Jose

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