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A peaceful Central California residential street lined with single-family homes — Los Altos Hills, California service area

Fumigation in Los Altos Hills, CA

101 Exterminators performs full-structure fumigation in Los Altos Hills with Vikane (sulfuryl fluoride) when drywood termites have spread past what a local treatment can reach. We hold SPCB Lic. #9119 and have worked Santa Clara County since 2005. Tenting a low, sprawling custom home on a hillside acre takes more tarp, more setup and more site planning than a compact two-story house on a small lot.

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Tenting a Sprawling Hillside House Is a Different Job Than Tenting a Tract Home

The shape of Los Altos Hills housing decides when fumigation becomes the answer. Mid-Century Modern and Modern Ranch homes here spread horizontally across an acre instead of stacking, which produces a large roof area, long runs of concealed framing, and additions built in different decades that meet at hidden junctions. Western drywood termites (Incisitermes minor) settle into those junctions. When frass turns up at four or five separated locations, spot treatment is only treating the parts we can see.

The setting adds real logistics. Lots step down toward Adobe, Matadero and Purissima creeks, private driveways off Page Mill Road, Moody Road and Robleda Road are long and narrow, and mature oaks lean over the roof on most properties. Tarps have to clear that canopy without abrading, seal to a foundation whose elevation changes across the footprint, and stay anchored on a slope. We plan the crew and the equipment approach around all of it before a date goes on the calendar.

Much of the town falls inside the Town's adopted Wildland-Urban Interface Fire Area, where hazardous vegetation and fuel management around structures is required. That works in our favor, because the defensible-space clearance owners already maintain makes a tent seal easier to achieve. Detached stables, guest cottages and pool houses are separate structures, and they are inspected and tented separately when they are infested.

How We Work in Los Altos Hills

Before a Los Altos Hills fumigation we measure the structure for gas calculation, document every roof plane and elevation change, and check tree clearance and driveway access for the tarp crew. We walk the preparation list with you — food, medications and plants bagged or removed — and we plan the parts people forget on a rural property: animals, feed storage, the pump house, and gate access for equipment. After the exposure period the structure is aerated and a certified inspector confirms clearance levels before anyone goes back inside.

Los Altos Hills Climate

The foothill elevation gives Los Altos Hills 18 to 24 inches of rain a year, more than the valley floor below it, and the oak woodland keeps ground-level humidity up under the canopy even when open areas hit 85 to 93°F in July. The number that drives pest behavior here is not the temperature, it is the contrast that opens in summer. The creeks draw down or run dry by July while the town's landscaping, pastures, and leach fields stay wet on a schedule. From midsummer through the first rains, the irrigated parcels are the only reliably damp ground for a long way, and gophers, rats, and wildlife all move toward them.

Housing Stock

The town is almost entirely custom single-family homes on lots of an acre and up, running from 1950s and 1960s ranches through recent large builds, with working horse properties, stables, and remnant orchard trees mixed among them. That layout matters for pests in a couple of ways. Many parcels are on septic rather than sewer, and a leach field holds a defined patch of subsoil moist straight through a dry summer, which is what gophers and subterranean termites are both looking for. And the outbuildings add up: a barn, a hay store, a tack room, a pool house, a detached garage, a well house. Each one is unheated wood that nobody walks through daily, which is where black widow and rodent populations get established before anyone notices them.

Why Local Expertise Matters

A gopher program on a two-acre horse property is a different job from a gopher program on a suburban lot, and treating them the same is why the mounds come back. Here we map the active tunnel systems across the whole parcel, work the main runs instead of the surface mounds, and set the schedule around irrigation and pasture use rather than a fixed calendar. On septic parcels we locate the leach field and the well head before anything else, because those areas change both where the activity concentrates and where we are willing to work. That calibration comes from doing agricultural and rural properties across our four counties since 2005. SPCB Lic. #9119.

Signs You Need Fumigation Service in Los Altos Hills

We manage the entire fumigation process: pre-fumigation inspection and documentation, structure tenting with certified fumigation tarps, introduction of Vikane fumigant to specified concentration, aeration protocol, post-fumigation clearance testing, and coordination with a certified fumigation clearance company before you return. We also provide bagging requirements and preparation guidance for food, medications, and plants.

Multiple locations of frass (termite pellets) throughout the structure — not just one area

Evidence of drywood termites in structural framing, not just surface wood

Previous localized treatments that have not resolved the infestation

Inspector-identified infestation in inaccessible areas (wall cavities, sealed areas)

WDO report showing extensive Section 1 conditions throughout the structure

Visible winged termites (swarmers) emerging from multiple locations

Our Fumigation Process in Los Altos Hills

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

01

Pre-Fumigation Inspection

We document all entry points, confirm the infestation scope, measure the structure for gas calculation, and review the preparation checklist with you at least 3 days before the fumigation date.

02

Structure Tenting

Our crew tents the entire structure with specialized fumigation tarps, sealed at the foundation to prevent gas escape. Neighbors are notified as required, and warning signs are posted.

03

Gas Introduction & Monitoring

Vikane is introduced to calculated concentration and held for the required exposure time. Readings are monitored throughout the process to confirm effective dosage.

04

Aeration & Clearance

The structure is thoroughly aerated until Vikane levels are below the safe entry threshold. A certified third-party inspector confirms clearance levels before we authorize re-entry.

Fumigation You Can Count On in Los Altos Hills

Complete Structure Coverage

Gas fumigant penetrates every void, cavity, and piece of wood in the structure — including areas impossible to reach with liquid or foam treatments.

Vikane — Industry Gold Standard

Vikane (sulfuryl fluoride) is the most widely used and thoroughly studied structural fumigant. It leaves no residual after aeration — the structure is safe to re-enter after clearance.

Third-Party Clearance Testing

Re-entry is only authorized after independent clearance testing confirms gas levels are below threshold. No guesswork on when your home is safe.

Real Estate Compliant

Fumigation clears all Section 1 termite conditions for real estate transactions. We issue the required Completion Notice accepted by lenders and escrow companies.

Fumigation FAQs for Los Altos Hills

Do I have to move my horses off the property during a Los Altos Hills fumigation?

Animals must be out of the structure being fumigated, and we plan the rest of the property with you case by case based on distance, layout and prevailing wind. Horses in a detached barn well away from the tented house are a different situation than a dog kenneled against the garage wall, and feed stored inside the tented footprint has to come out. On acreage properties this is usually the longest part of the preparation conversation, so raise it at the pre-fumigation walkthrough.

Can you tent a house off Page Mill Road with big oaks hanging over the roof?

Usually yes, with planning. We survey canopy clearance during the pre-fumigation inspection and identify limbs that would abrade or lift the tarp, then coordinate the minimum trimming needed before the tent goes up. Long private driveways and steep grades also affect where the crew can stage equipment and how the tarp is anchored. Around Los Altos Hills this is a scheduling factor, not a disqualifier.

Is fumigation the only option for a large custom home in Los Altos Hills?

No. Fumigation is the answer when drywood activity is widespread or sits inside framing we cannot reach, and many Los Altos Hills homes qualify for local treatment instead because their post-and-beam construction leaves so much wood accessible. We inspect first, count how many separated areas show activity, and show you the photographs behind the recommendation. If a targeted treatment can honestly do the job, we say so.

Free Pest Evaluation in Los Altos Hills

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

Trusted by Los Altos Hills families since 2005