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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, working since 2005. 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 — the reason behind the old "Climate Best by Government Test" motto, and why summer highs here run in the high 70s to low 80s while the coastal cities stay under cloud. 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. Downtown, Mount Carmel and the Centennial blocks hold Queen Anne Victorians and Craftsman bungalows from the 1900s through the 1930s, framed in old-growth redwood and fir 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 roughly nineteen inches of 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, Cordilleras Creek and Belmont Creek carry the same 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 consistently identified as having one of the best climates in the US — warm, sunny, and less fog-affected than cities to the north. Summer days regularly reach 80–85°F. This warmth makes drywood termite swarm season particularly active here from May through October. Annual rainfall averages 17–20 inches.

Housing Stock

The neighborhoods north and west of downtown (Stambaugh Heron, Edgewood, Mount Carmel) have pre-1940 construction with original wood framing at risk for drywood termites. Post-WWII development extends south and east. Farm Hill and the hillside neighborhoods to the west have 1960s–1980s construction. The harbor area near the Bay has bayfront conditions with subterranean termite exposure.

Why Local Expertise Matters

Redwood City's warmer microclimate changes the termite treatment calculus compared to fog-belt Peninsula cities. We understand the swarm timing, the specific neighborhoods with the highest historical infestation rates, and the WDO report format required for Redwood City real estate transactions. SPCB License #9119.

Signs You Need Termites Service in Redwood City

We perform thorough visual inspections of all accessible structural wood, attic spaces, crawl spaces, fencing, and exterior wood. Our reports clearly distinguish Section 1 conditions (active infestations requiring immediate treatment) from Section 2 conditions (conditions that are likely to lead to infestation). We issue California-required WDO reports for real estate transactions and carry the licensing required by the Structural Pest Control Board.

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

Our Termites Process in Redwood City

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

01

Comprehensive Inspection

Our licensed inspector examines all accessible wood, crawl spaces, attic framing, exterior siding, eaves, and fencing. We document every finding with photos and written notes.

02

WDO Report & Recommendations

Within 48 hours, you receive a state-compliant Structural Pest Control Report distinguishing active infestations, wood damage, and conducive conditions. No confusing fine print.

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 & Clearance

We execute the treatment per plan, return for any follow-up needed, and issue a Completion Notice clearing the structure once all Section 1 items are resolved.

Termites You Can Count On 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 the Structural Pest Control Reports required for California home sales, refinancing, and VA/FHA loans — accepted by all lenders and escrow companies.

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.

Free Re-Inspection Policy

If signs return within our warranty period, we come back at no charge. Our work is backed, not just guaranteed on paper.

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 in the high 70s and low 80s 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 sits on low bayfill beside Bair Island, and the high water table there favors subterranean termites that build mud tubes up from the soil. The 1900s–1930s 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 median Redwood City house was built in 1968, which makes most of the city's ranch and post-and-beam stock about six decades old — plenty of time for a drywood colony to establish in an exposed beam end or a low-slope roof edge. 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.

Free Limited Termites Inspection in Redwood City

CA licensed and insured. Written estimate before any work begins. Same-day response available for urgent situations in Redwood City.

Trusted by Redwood City families since 2005