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

Residential Pest Control in Palo Alto, CA

101 Exterminators provides residential pest control in Palo Alto across the range a house here actually needs — drywood and subterranean termites, roof rats, Argentine ants, spiders, wasps and sub-area work — on one account rather than four vendors. We are licensed in California under SPCB Lic. #9119 and have worked Santa Clara County since 2005. What we recommend depends on which Palo Alto you live in.

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One Palo Alto Address Can Be a 1912 Shingle and the Next a 1958 Slab

One Palo Alto street can hold both halves of the city's building history. Professorville, Downtown North, Old Palo Alto and Crescent Park hold pre-1930 Colonial Revival, Craftsman and Shingle-style houses on raised foundations, with real attics and sub-areas underneath them. Greenmeadow, Fairmeadow, Charleston Meadow and Los Arboles hold post-war slab-on-grade tracts, part of the more than 2,700 Eichler post-and-beam houses Joseph Eichler built here between 1949 and 1974. Those are two different pest problems in the same city.

On the older raised-floor houses, the recurring calls are drywood termites in the attic framing and eaves, roof rats using the mature canopy to reach a roof, black widows in the sub-area and detached garage, and moisture in a bare-dirt crawl space. On the slab tracts they shift: subterranean termites through slab cracks and plumbing penetrations, Argentine ants at the slab edge and expansion joint, rodents in a ceiling cavity or mechanical chase rather than an attic, and paper wasps under the deep overhangs.

Geography adds the last layer. Houses near San Francisquito, Matadero, Adobe and Barron creeks carry more soil moisture, more subterranean termite pressure and heavier ant activity after the first November rain. Properties on the western edge against Pearson-Arastradero, the Foothills preserve and the Palo Alto Hills take yellow jackets, widows and mice off oak woodland and grassland, especially in late summer. Toward the Baylands the ground is bay-influenced and damp. Same city, three different service plans.

How We Work in Palo Alto

The first visit is a walk of the whole property with you, and what we look at depends on the construction. On a raised-floor house we get into the sub-area and the attic. On a slab house we work the perimeter, the garage sill, the exposed beam ends and the plumbing penetrations, then the ceiling cavity if there is rodent noise. We write down what we found and what it means, then set a schedule and a scope for your property rather than putting the address on a standard plan.

Palo Alto Climate

Palo Alto has a mild, pleasant Silicon Valley climate — warm summers, moderate winters, and modest rainfall of 14–16 inches. The Stanford foothills channel some coastal fog into the western neighborhoods. Summer temperatures in the low-to-mid 80s°F support active drywood termite swarm seasons from May through October.

Housing Stock

Professorville (the area around Stanford campus) has pre-1930 Craftsman and Colonial Revival construction — some of the oldest and most historically significant housing in Santa Clara County, with corresponding drywood termite exposure histories. Crescent Park, Old Palo Alto, and Barron Park have 1920s–1960s construction. South Palo Alto and the areas near Highway 101 have post-war tract development. Palo Alto's high property values mean WDO inspection quality has significant financial implications for transactions.

Why Local Expertise Matters

Palo Alto's high-value real estate market and historic housing stock demand precise, thorough WDO inspections. An incomplete or inaccurate inspection report in a multi-million-dollar transaction has real consequences. We hold SPCB License #9119 and bring the expertise required for Palo Alto's historic neighborhood properties.

Signs You Need Residential Service in Palo Alto

General pest maintenance programs (monthly, bi-monthly, quarterly), termite inspections and treatment, rodent exclusion and control, bed bug treatment, ant and wasp management, spider control, bird netting, crawl space services (vapor barrier, insulation), and structural pest inspections. You do not need a different company for each service — we handle the full spectrum.

Any pest activity that is recurring despite over-the-counter products

New home purchase — establish a baseline inspection and maintenance program

Home has been vacant for an extended period — pest activity increases in unoccupied structures

Multiple pest problems occurring simultaneously — common in homes without a prevention program

Our Residential Process in Palo Alto

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

01

Free Pest Evaluation

We walk the property with you — exterior perimeter, interior, garage, any crawl space or attic concerns — and discuss what pest pressures your specific home faces.

02

Tailored Service Plan

We recommend the services that actually make sense for your property — not a generic package. A maintenance program, a one-time treatment, or a combination.

03

Scheduled Treatment

Service visits are delivered on your schedule, with notification in advance. You receive a service report after every visit documenting exactly what was done.

04

Ongoing Support

Questions between visits? Call us. Activity between scheduled visits? We come back at no charge. We are your pest partner, not a one-visit transaction.

Residential You Can Count On in Palo Alto

One Company, Every Service

Termites, rodents, ants, spiders, bed bugs, birds, insulation, crawl space — we handle all of it. One call, one relationship, consistent service.

Local Expertise

We know pest patterns in Central California specifically — not generic national information.

Free Re-Treatment Guarantee

Pests return between scheduled visits? So do we. At no additional charge.

Residential Pest Control FAQs for Palo Alto

What pests should a new Palo Alto homeowner expect in the first year?

It depends on the era of the house more than the address. In a pre-1930 house in Professorville or Crescent Park, expect to meet drywood termite evidence in the attic or eaves, roof rats using the tree canopy, and widows in the garage or sub-area. In a post-war slab house in Greenmeadow or Fairmeadow, expect Argentine ants at the slab edge after the first November rain and paper wasps under the overhangs by midsummer. A walkthrough in the first month tells you which list is yours.

Can one company handle termites, rodents and ants at a Palo Alto house, or do I need specialists?

One licensed structural pest control company covers all three in California — the SPCB licensing that authorizes termite work also covers general pest and rodent work, and there is no benefit in splitting them across vendors. There is a practical benefit in keeping them together: the sub-area moisture drawing subterranean termites is often the same condition feeding an ant trail, and the roofline gap letting roof rats in is often next to the fascia damage the WDO report flagged. One inspection sees the connections.

How does living near Adobe Creek change what my house needs?

It raises the moisture-driven items. Properties along Adobe, Matadero, Barron and San Francisquito creeks hold soil moisture well past the last April rain, which supports subterranean termite (Reticulitermes) foraging up piers and stem walls, wood decay fungi in a bare-dirt sub-area, and heavier Argentine ant movement when the ground first saturates in November. In practice the sub-area gets more attention: vapor barrier, open vents, no wood-to-soil contact, and no irrigation running against the foundation.

Free Pest Evaluation in Palo Alto

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

Trusted by Palo Alto families since 2005