termite control in Berkeley, CA

A scatter of shed wings by a window or a pencil-thin mud tube on the foundation is how most people in Berkeley first find termites. Here's what to check, and what help costs.

Close-up of a wooden beam hollowed out into layered, honeycombed galleries by termites
The short version

Most termite problems in Berkeley are western subterranean termites, and the usual fix is a liquid soil treatment or bait stations. Drywood termites need fumigation or wood treatment instead. Start with an inspection; $75–$250 is typical.

  • Look for mud tubes, shed wings and hollow-sounding wood.
  • Swarms usually show up in spring.
  • Drywood termites need wood treatment or fumigation instead.
  • An inspection typically costs $75–$250.
  • Insurance usually doesn’t cover termite damage.

Anyone in Berkeley who owns, rents out, or is buying a home and wants to know whether termites are a real concern.

What to look for

Spongy floors or bubbling paint usually mean long-running damage. So it's worth an inspection, even for one or two signs. Termites work quietly. A colony can feed inside a wall for years. Winters around Berkeley stay mild, with average lows near 44°F, so colonies keep feeding all year.

  • Crumbling baseboards behind furniture.
  • Dry hexagonal pellets under window frames or eaves.
  • Sagging or spongy floors near exterior walls.
  • Termite tubes hanging down from ceilings or joists.
  • Screwdriver sinks easily into sills or trim.
  • Layered, honeycombed wood packed with soil.

Why it’s worth acting soon

  • Colonies grow and spread every year they go untreated.
  • Damage hides behind drywall, flooring and trim.
  • Homeowners insurance usually doesn’t cover termite damage.
  • An active infestation can complicate a home sale.
85%Pest companies offering real-estate termite inspections (PCT, 2025)PCT/Readex: 2025 termite market report
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Could you have termites?

Treatment options and typical costs

Termite Inspection and WDI Report

$75–$250

The inspector checks the foundation, garage, attic and damp spots. Bring up anything you’ve noticed.

Time
60–120 minutes
Best for
Every job, real estate closings, and yearly peace of mind

Liquid Soil Termiticide Barrier

$1,200–$3,500 (often $3–$16 per linear foot)

Crews in Berkeley dig a shallow trench against the foundation, rod termiticide into the soil, and backfill. Fipronil-type products are widely published to last five years or more.

Time
Half a day to a full day
Best for
Active subterranean termites; fast knockdown around the foundation

Localized Wood, Foam, and Borate Treatment

$250–$1,500

Foam termiticide is injected into wall voids liquid cannot reach. In Berkeley this pairs well with a soil barrier around tricky slab construction.

Time
1–3 hours
Best for
Small drywood spots, wall voids, and exposed framing

Fumigation for Drywood Termites

$1,200–$4,000 (often $1–$4 per square foot)

Fumigation tents the house and fills it with sulfuryl fluoride gas. For Berkeley homes with drywood termites in several areas, it is the only way to reach every gallery.

Time
2–3 days including tenting and aeration
Best for
Widespread drywood termites throughout a structure

Prices are typical published ranges. Ask what’s included before you compare quotes.

A garage interior with cardboard boxes stacked against the wall near the closed garage door
Cardboard boxes stacked on a garage slab are termite food sitting right on their doorstep. Keep storage on shelves.

Which termites live around Berkeley.

Look for tiny piles of pellets that look like coarse sand. The termite you're most likely to meet in Berkeley is the western subterranean termite. It nests in soil and builds mud tubes to reach wood. It needs steady moisture. Drywood termites are common around Berkeley as well, flying straight into attic framing, eaves and furniture without any soil contact.

Local termites conditions in Berkeley.

A provider who works Berkeley and California every day can point out the specific conditions that matter most here, and getting the scope, price, and follow-up terms in writing makes it easier to compare options. Berkeley sits in a local climate, and that sets the pace for termite activity here: the warmer months. Across Berkeley, the area is mostly residential, so termites pressure can differ from one block to the next depending on how tight the entry points are and how much food, water, or shelter is close by. An inspection in Berkeley usually starts outside and works inward, checking the foundation, gaps around doors and windows, and any moisture or clutter near the structure first. Knowing Berkeley's seasonal timing lets you schedule treatment before the busy stretch rather than after it, which usually means faster service and a more accurate quote.

A pair of work gloves and a flashlight on a stone garden wall beside a mulched bed and an outdoor faucet
Mulch piled against the house and a dripping hose bib give termites moisture and cover. Pull mulch back and fix the drip.

When termites swarm here.

Across Berkeley, western subterranean termites usually swarm in spring, and again in fall after the first good rain. Drywood termites around Berkeley tend to swarm in late summer and fall. A swarm outside means a colony is nearby. A swarm inside usually means it's in the house. Save a few in a bag, or snap a clear photo. Swarm season is when termites show themselves.

Where to look around your house.

The same advice applies across the area, from Berkeley out to Oakland and San Francisco. Plenty of homes in Berkeley have basements, so check where the wood framing sits on top of the foundation wall. Look around window wells and unfinished walls. Outside, check porches, steps and decks that touch soil. Wood should stay several inches above the ground.

A year of termites in Berkeley.

  • Spring and fall: swarm seasons. Across Berkeley, swarms often follow the first warm days and the first fall rain. - Summer: with highs around 72°F in Berkeley, termites follow moisture, so watch AC drain lines, sprinkler zones and hose bibs. - Fall: with about 23 inches of rain a year in Berkeley, make sure gutters and downspouts carry water well away from the foundation. - Winter: a good time to book an inspection in Berkeley, before swarm season starts.

What happens at an inspection.

A moisture meter and a probe help them find hidden activity. Afterward, ask them to show you what they found. Photos help. Most inspections take an hour or two. The inspector walks the outside of the house first. They check the foundation, the soil line and nearby wood. Inside, they check the garage, baseboards, plumbing gaps and the attic. They'll check the basement walls and sill plate.

Termites or ants?

  • Waist: termites are thick through the middle. Ants are pinched. - Antennae: termite antennae are straight. Ant antennae bend like an elbow. - Debris: termites leave mud. Carpenter ants leave sawdust. - Tunnels: termite galleries are packed with mud. Ant tunnels are clean and smooth. - Wings: termite wings are all the same length. Ant wings aren’t.

Getting ready for treatment day.

Keep kids and pets inside while the California crew applies the product, and ask how long to stay off treated soil. In California, Reticulitermes swarm in the afternoon in spring or fall on clear days after a soaking rain; drywood swarmers fly in daytime during summer and fall; Heterotermes aureus flies late afternoon/early evening in July–September (UC IPM). Drill holes in slabs or patios get patched afterward. Prep is light for liquid treatments and bait stations. Clear a walking path along the exterior walls. Move boxes away from garage walls. Flag sprinkler heads and buried lines.

Mulch and termites.

Pull mulch back from the foundation and keep the layer thin. A dry gap along the house makes mud tubes easier to spot; in California's dry climate the risk is irrigation and leaky hose bibs rather than rain. Wood chips touching the siding trap the moisture termites are after.

Questions to ask before you sign.

  • What product or system will you use? - Is the whole foundation treated, or just one spot? - What does the warranty cover, and for how long? - What does the yearly renewal cost? - What do I need to do before and after treatment? - Which termites did you find, and where?

What affects the price

  • Amount of drilling through concrete and patios.
  • Linear feet of foundation to be treated.
  • Attached garages, decks, and additions.
  • Species: subterranean, drywood, or Formosan.
  • Number of bait stations required.
  • Wells, drains, or water features limiting chemical use.
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What's your biggest concern about termites?

When to call for help

Call if you see mud tubes, pellets or an indoor swarm. Hollow-sounding wood is another clue. Buying or selling? Get a wood-destroying insect (WDI) report either way. Lenders often ask for one. It's also the cheapest termite service. Carpenter ants leave clean tunnels and sawdust. Termites leave mud.

What you can do yourself

Store-bought sprays usually kill only the termites you see. It also needs even coverage around the entire foundation. The product has to reach the whole colony. Treating an active colony is harder. Keep firewood away from the house. Fix leaks and clear gutters. Pull mulch back from the foundation. Some of the work is yours.

Termites in Berkeley

Termite activity in California is above average. Most houses will see termites at some point. Like nearby Oakland, Berkeley gets about 23 inches of rain a year, which is plenty for subterranean termites along any damp side of the house.

Local research

Termites in Berkeley, CA: what the public record shows

Before you compare quotes, it helps to know which termites actually live in California, when they are busiest around Berkeley, and what the state figures look like. Everything below links to the agency or university page it came from.

not available for the general public
Termite control products for drywood termites

Drywood and subterranean termite work in California is effectively professional-only; the state licenses it by branch.

UC Statewide IPM Program

Termite species recorded in California

  • Formosan subterranean termite (Coptotermes formosanus) — FDACS lists it in Florida, Alabama, Georgia, Louisiana, Mississippi, South Carolina, North Carolina, Tennessee, Virginia, Texas, Arizona, California and Hawaii. Colonies contain…
  • Western drywood termite (Incisitermes minor) — UC IPM: 'California's second most important termite pest', 'commonly found along the Pacific coastal region extending into the Central Valley and deserts of Southern California'…
  • Desert subterranean termite (Heterotermes aureus) — UA Extension calls it an 'important structural pest' of the desert Southwest. UC IPM: 'flies in the late afternoon or early evening in July, August, and September'.
  • Western subterranean termite (Reticulitermes hesperus) — Oregon State: causes damage to structures in the Pacific Northwest and 'may swarm any time of year'. Utah State describes swarmers 3/8 inch long and workers 1/4–3/8 inch, pale c…

When termites are busiest around Berkeley

Reticulitermes swarm in the afternoon in spring or fall on clear days after a soaking rain; drywood swarmers fly in daytime during summer and fall; Heterotermes aureus flies late afternoon/early evening in July–September (UC IPM).

UC IPM: Reticulitermes 'can be encountered in nearly all regions of the state'; the western drywood termite is 'California's second most important termite pest', found along the Pacific coast, Central Valley and Southern California deserts. FDACS lists California among states with Formosan termites. Branch 3 covers 'the control of wood-destroying pests or organisms by the use of insecticides or structural repairs and corrections'; Branch 1 covers fumigation.

For context, nationally

Sources: Drywood Termites (Pest Notes); University of Georgia Extension; University of Missouri Extension; Formosan Termite Program; Not All Termites Are Terrible (Home and School IPM Newsletter); Termites | Solve Pest Problems. Figures are quoted as the source prints them. How we check our sources

Simple ways to keep termites away

  • Never leave form boards or scrap lumber in the soil.
  • Use borate-treated or pressure-treated lumber for repairs.
  • Address wood-to-soil contact at steps, fences, and trellises.
  • Store firewood well away from the house, off the ground.
  • Screen attic and foundation vents with fine mesh.
  • Set deck and porch posts on concrete, not soil.
A clipboard checklist, a flashlight, a tape measure and a house floor plan laid out on a wooden table
Keep the inspection diagram, treatment record and warranty together. Buyers and inspectors will ask for them later.

Did you know?

Some African termite mounds stand more than 25 feet tall.

Questions people ask

How long do termite bait stations take to work?

Colony decline typically takes a few months. Newer baits act faster, and your Berkeley pro can tell you what to expect. Bait works on the colony's timeline, not yours. After installation around a Berkeley home, workers must find the stations, feed, and share the bait.

How do I know if I have termites or flying ants?

Then check the waist, which is thick on a termite. Save a few in a bag so the inspector can confirm what they are. Termites and ants swarm the same time of year in Berkeley, California, so confusion is common. Check the wings first: termite wings are all the same size.

What is the difference between subterranean and drywood termites?

Drywood termites in a Berkeley attic or window frame need localized wood treatment or, when widespread, fumigation. An inspector identifies which one you have. The species matters because the treatment differs. Around Berkeley, subterranean termites are handled with soil barriers or bait stations.

Can I treat termites myself?

Professional baits and non-repellent termiticides do. If you want to do something today, pull wood and mulch away from your Berkeley foundation while you book the inspection. DIY termite control in Berkeley usually ends with a bigger bill later. Spot sprays and stakes do not reach the colony.

How do I choose a termite company?

It names the species, the method, the active ingredient, the linear footage for your Berkeley home, and what happens if termites return. If a Berkeley pro cannot answer those questions clearly, keep looking. A strong termite proposal in Berkeley explains itself.

Are termites common in California?

Around Berkeley, the usual culprit is the western subterranean termite.

Related guides

Sources (6)

The facts in this article come from the public sources listed above. Every home is different, so ask the company you talk to about pricing and what’s included. Published by Termite Exterminator · Updated September 11, 2026 · How we write these guides

Ask about an inspection or a quote.

Tell us what you’ve noticed.

  • Where you’ve seen termites or damage
  • When you first noticed it
  • Anything you’ve already tried