The short version
Most termite problems in Concord 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 Concord who owns, rents out, or is buying a home and wants to know whether termites are a real concern.
What to look for
Termites work quietly. A colony can feed inside a wall for years. Winters around Concord stay mild, with average lows near 44°F, so colonies keep feeding all year. Spongy floors or bubbling paint usually mean long-running damage. So it's worth an inspection, even for one or two signs.
- 1Termite activity reported at a neighbor's home.
- 2Termite tubes hanging down from ceilings or joists.
- 3Dry hexagonal pellets under window frames or eaves.
- 4Tiny pinholes in drywall rimmed with mud.
- 5Buckling laminate or warped hardwood flooring.
- 6Piles of identical shed wings on windowsills.
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.
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
Fumigation for Drywood Termites
$1,200–$4,000 (often $1–$4 per square foot)
Fumigation does not treat subterranean termites living in the soil. A Concord home with both species may need a soil barrier as well as the tent.
- Time
- 2–3 days including tenting and aeration
- Best for
- Widespread drywood termites throughout a structure
Liquid Soil Termiticide Barrier
$1,200–$3,500 (often $3–$16 per linear foot)
A soil barrier stops termites from reaching wood through the ground. For most Concord homes with active subterranean termites, this is the fastest way to end feeding.
- Time
- Half a day to a full day
- Best for
- Active subterranean termites; fast knockdown around the foundation
Bait Station System with Monitoring
$1,500–$3,500 install, plus $300–$500 per year
Ask how many stations they plan for your Concord home, how often they'll check them, and what the annual fee covers.
- Time
- 2–4 hours to install; checked quarterly
- Best for
- Colony elimination, wells and slabs, homes near water
Prices are typical published ranges. Ask what’s included before you compare quotes.
A slow leak under a sink keeps the wood damp, and damp wood is exactly what termites are looking for.Which termites live around Concord.
The termite you're most likely to meet in Concord 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 Concord as well, flying straight into attic framing, eaves and furniture without any soil contact. Look for tiny piles of pellets that look like coarse sand.
Local termites conditions in Concord.
Concord sits in a local climate, and that sets the pace for termite activity here: the warmer months. In Concord, 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 Concord usually starts outside and works inward, checking the foundation, gaps around doors and windows, and any moisture or clutter near the structure first. Knowing Concord'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 provider who works Concord 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.
A downspout that dumps water at the foundation keeps the soil wet year-round. Extend it well away from the house.When termites swarm here.
Swarm season is when termites show themselves. In Concord, western subterranean termites usually swarm in spring, and again in fall after the first good rain. Drywood termites around Concord 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.
Where to look around your house.
Plenty of homes in Concord 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. The same advice applies across the area, from Concord out to Oakland and Fremont.
A year of termites in Concord.
- Spring and fall: swarm seasons. In Concord, swarms often follow the first warm days and the first fall rain. - Summer: with highs around 72°F in Concord, termites follow moisture, so watch AC drain lines, sprinkler zones and hose bibs. - Fall: with about 23 inches of rain a year in Concord, make sure gutters and downspouts carry water well away from the foundation. - Winter: a good time to book an inspection in Concord, before swarm season starts.
What happens at an inspection.
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. A moisture meter and a probe help them find hidden activity. Afterward, ask them to show you what they found. Photos help.
Termites or ants?
- Wings: termite wings are all the same length. Ant wings aren’t. - 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.
Getting ready for treatment day.
Soil treatments and bait stations need little prep. Clear a path along the outside walls. Move stored boxes away from garage walls. Mark sprinkler heads and any buried lines. Keep pets and kids inside while the crew works outside. Ask how long to stay off treated soil. Any drill holes in a slab or patio get patched.
Mulch and termites.
Keep mulch thin and pull it back from the foundation. A dry strip along the house lets you spot mud tubes. Wood chips right against siding hold moisture termites like.
Questions to ask before you sign.
- Which termites did you find, and where? - 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?
What affects the price
- Access to crawl spaces and attics.
- Number of bait stations required.
- Time of year and how booked up local companies are.
- Species: subterranean, drywood, or Formosan.
- Annual renewal and monitoring fees.
- Liquid barrier versus bait station system.
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What's your biggest concern about termites?
When to call for help
Termites leave mud. Carpenter ants leave clean tunnels and sawdust. It's also the cheapest termite service. Lenders often ask for one. Get a wood-destroying insect (WDI) report either way. Buying or selling? Hollow-sounding wood is another clue. Call if you see mud tubes, pellets or an indoor swarm.
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 Concord
Like nearby Oakland, Concord gets about 23 inches of rain a year, which is plenty for subterranean termites along any damp side of the house. Termite activity in California is above average. Most houses will see termites at some point.
Local research
Termites in Concord, 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 Concord, and what the state figures look like. Everything below links to the agency or university page it came from.
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 ProgramTermite 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 Concord
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.
Rules that apply in California
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
- Keep gutters clean so water does not pool.
- Extend downspouts so water drains away from walls.
- Repair rotting trim, fascia, and window frames.
- Caulk gaps around plumbing and utility penetrations.
- Use borate-treated or pressure-treated lumber for repairs.
- Screen attic and foundation vents with fine mesh.
Keep the inspection diagram, treatment record and warranty together. Buyers and inspectors will ask for them later.Did you know?
In Concord, a termite queen can keep laying eggs for 25 years or more.
In Concord, some tropical termites grow fungus gardens inside the nest and eat the harvest.
Questions people ask
What does a WDI report include?
Expect a form with checkboxes and a diagram of the Concord house. The inspector marks where evidence was found and whether active. Recommendations for treatment or repair follow. Lenders in Concord usually want the report dated within about 30 days of closing.
Can termites damage a house on a concrete slab?
Slab construction in Concord hides termite entry very well. With no crawl space to inspect, the first sign in a Concord home may be damaged trim or a swarm indoors. Bait stations around a Concord slab home are a popular option because they avoid extensive drilling through floors.
Do I need a termite inspection when buying a house?
In most cases, yes. Many lenders serving Concord require a WDI report before closing, and VA loans require one in many states. Even when it is optional, an inspection on a Concord home costs little and can surface damage or old treatments the seller may not know about.
Will termites come back after treatment?
They can. A liquid barrier around a Concord home breaks down over years, and new colonies can move in from neighboring soil. Bait systems only work while monitored. That's why companies in Concord offer annual renewals: a yearly inspection catches new activity before it matters.
How do I choose a termite company?
Choose the Concord company whose inspection is most thorough, not the one with the lowest number. A good inspector probes wood and crawls the whole crawl space. Ask for references, license numbers, and the renewal terms before hiring anyone in Concord.
Are termites common in California?
Around Concord, the usual culprit is the western subterranean termite.
Sources (5)
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