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A modern craftsman home in a leafy Silicon Valley suburb — Redwood City, California service area

Termite Control in Redwood City, CA

101 Exterminators does termite control in Redwood City as a California-licensed structural pest company, SPCB Lic. #9119. The Santa Cruz Mountains block most of the marine fog here, so summer afternoons sit in the high 70s and low 80s while the coast stays grey. That warmth stretches the drywood swarm season across the Mount Carmel and Centennial bungalows. We inspect first, then report by section.

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The Fog Stops at the Santa Cruz Mountains, and the Drywood Swarm Season Runs Longer for It

Redwood City sits in a sun gap. The ridge to the west strips the marine layer before it reaches town, which is why summer afternoons here average near 80°F while the coastal cities stay under cloud, and why the city has advertised itself for a century with the "Climate Best by Government Test" slogan on its downtown sign. Warm evenings are what western drywood termites (Incisitermes minor) fly on. The swarm window stretches later into fall here than it does on the ocean side of the ridge.

The wood is here to meet it. This city grew as the shipping point for redwood cut in the Santa Cruz Mountains, and its oldest neighborhoods were framed from it. Downtown, Mount Carmel and the Centennial blocks hold Queen Anne Victorians and Craftsman bungalows from before 1940, with exposed rafter tails, deep eaves and single-wall sheathing. Drywood termites never touch soil. A colony works inside a header or a rafter for years, and the first sign is usually a small cone of hard six-sided pellets on a windowsill under a pinhole.

East of El Camino Real the mechanism flips. Friendly Acres, Redwood Village and the low ground running toward Bair Island and the Port sit close to the water table, and the rain that falls between November and April keeps that soil damp. Subterranean termites (Reticulitermes) live in the soil and build pencil-width mud tubes up stem walls and pier blocks to reach framing. Redwood Creek runs from west of I-280 to the Bay and Cordilleras Creek drops out of Pulgas Ridge into Smith Slough, carrying a wet corridor through neighborhoods that look dry from the street.

How We Work in Redwood City

Our first question on a Redwood City job is which side of El Camino Real the property sits on. West of it, in Mount Carmel, Eagle Hill or up Farm Hill Boulevard, we start at the roofline — rafter tails, fascia, attic framing, window headers — because drywood termites come in from above. East toward Redwood Shores and Seaport Boulevard we open the crawl space first and read the sill plate, pier blocks and stem wall for mud tubes. Findings get photographed and sorted into Section 1 and Section 2 on a state-compliant WDO report.

Redwood City Climate

Redwood City is warmer inland than the Peninsula coast, with seasonal winter rain. Weather alone does not establish termite activity.

Housing Stock

Older houses around Mount Carmel and newer homes toward Redwood Shores can have different foundations and access. The construction and later alterations determine which wood is visible.

Why Local Expertise Matters

In Redwood City, a raised floor may expose underfloor wood; a slab or finished addition may not. Ask for the inspected areas, any limits, and the written basis for a treatment recommendation. A separate Section I/Section II report is available on request; the report itself does not decide a transaction’s repair terms.

How do you keep termites out of a Redwood City home?

Protect the attic from drywood termites and the soil line from subterranean ones. Redwood City averages July highs of 81°F and about 18 days a year above 90°F, so attics and sunny trim stay hot and dry for months. Drywood termites like that wood, while irrigated yards keep the soil damp for the subterranean kind.

Wooden deck post on a raised concrete pier with a metal post base, held clear of the soil
  1. Screen attic and gable vents

    Drywood swarmers fly in during summer and fall looking for dry wood. Check that attic and gable vents have intact fine screens, and replace torn ones before July, when Redwood City’s hottest stretch begins.

  2. Keep paint on exposed wood

    Bare or cracked wood on rafter tails, fascia and window trim gives drywood termites a place to start. Repaint sun-beaten sides of the house on a regular cycle, especially on Stambaugh-Heller’s 1880s homes.

  3. Run irrigation away from the walls

    July averages no rain at all, so lawns and beds depend on sprinklers. Point heads away from the foundation and siding, and fix drip lines that soak the bed against the house.

  4. Clear wood from the soil line

    Fence posts, deck stairs and planter boxes that touch soil give subterranean termites a hidden route. Raise them on concrete or trim them clear, and keep firewood off the ground and away from walls.

  5. Sweep and recheck any pellet pile

    Six-sided pellets under eaves or in the attic mean an active drywood colony. Sweep them up, note the date and look again in a week; fresh pellets are the evidence an inspector needs.

When to do it

Vents and paint before July; soil-line work in September, before subterranean termites swarm after the first fall rain.

Maintenance guidance: UC IPM, Drywood termites

When to Ask About Termite Control in Redwood City

We check visible wood in accessible attics, crawl spaces, fences, and exterior areas, then explain the next step. For written findings needed in a sale, book a paid structural pest inspection. Its WDO report separates Section 1 from Section 2 conditions.

Hollow-sounding wood when tapped — galleries eaten from inside

Frass (fine sawdust-like pellets) near baseboards or windowsills — drywood termite excrement

Discarded wings near doors or windows in spring — swarmers leaving to start new colonies

Blistering or bubbling paint on wood surfaces — subterranean tunnel activity underneath

Mud tubes running up foundation walls or piers — subterranean termite foraging trails

Soft or sagging flooring near walls — severe structural damage to subfloor joists

Small holes in wood with discoloration around the edges

Real estate transaction requiring a WDO inspection and clearance report

What to Expect from Termite Control in Redwood City

Tell us where you found wings, pellets, mud tubes or damaged wood. If you need a written report for a sale or refinance, ask for a formal WDO inspection when you book.

01

Visual Review or Formal Inspection

A licensed technician reviews visible signs in accessible areas and explains them. For a sale, a separately booked paid structural pest inspection documents findings for the written WDO report.

02

Findings & Recommendations

We explain what we find and recommend the next step. A formal written WDO report comes with a separately booked paid structural pest inspection.

03

Targeted Treatment Plan

We recommend the most effective and least invasive treatment — whether that's localized spot treatment, fumigation for widespread drywood infestation, or subterranean bait systems.

04

Treatment & Documentation (If Needed)

If treatment is authorized, we carry out the agreed plan and explain any follow-up. When correcting Section 1 findings from a separately booked paid WDO inspection, we provide the applicable completion documentation.

Why Choose 101 Exterminators for Termite Control in Redwood City

State-Licensed Inspectors

Our inspectors hold California Structural Pest Control licenses and are compliant with SPCB regulations for both inspections and treatments.

WDO Reports for Real Estate

We issue California Structural Pest Control Reports used in real-estate and financing workflows. If your lender, escrow company, or loan program has specific requirements, confirm them before scheduling.

Both Termite Species Covered

Central California has both drywood and subterranean termites. We identify which species is present and apply the treatment protocol specific to each.

Written Follow-Up Terms

Any re-inspection, re-service, or warranty terms for the recommended treatment are provided in writing before work begins.

Termite Control FAQs for Redwood City

Why do termites swarm later in the year in Redwood City than on the coast?

Because Redwood City stays warmer and drier into fall. The Santa Cruz Mountains block most of the marine layer, so afternoon highs here hold near 80°F through September while the coastal cities sit under fog, and western drywood termites fly on warm evenings. Flights keep coming later here as a result. If you find discarded wings on a sill in October, save a few — the species changes the treatment.

Do houses in Redwood Shores get the same termites as the ones downtown?

No. Redwood Shores is built on filled bayland and lagoon frontage beside Bair Island, and the high water table there favors subterranean termites that build mud tubes up from the soil. The pre-1940 Victorians and Craftsman houses around Downtown and Mount Carmel deal mostly with drywood termites in the roof framing. Mud tubes and dry pellets are the two things to look for, and they point to different treatments.

Is a 1960s Redwood City ranch house too new to have termites?

No. The post-war tracts that fill the middle of Redwood City are around six decades old now, which is plenty of time for a drywood colony to establish in an exposed beam end or the low-slope roof edge those houses were built with. Slab-on-grade does not help either, since subterranean termites travel up through slab cracks and plumbing penetrations. What matters is whether wood is exposed to weather or touching soil, not the build year.

Schedule Service in Redwood City

Tell us what you have found and where. For a sale or refinance, request a separate paid WDO inspection.

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