The short version
Most termite problems in Olympia are western subterranean termites, and the usual fix is a liquid soil treatment or bait stations. Start with an inspection; $75–$250 is typical.
- Look for mud tubes, shed wings and hollow-sounding wood.
- Swarms usually show up in spring.
- The usual fix is a soil barrier or bait stations.
- An inspection typically costs $75–$250.
- Insurance usually doesn’t cover termite damage.
Anyone in Olympia 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. Average winter lows near 34°F slow termites near the surface around Olympia, but they move deeper and keep feeding under heated homes.
- 1Termite tubes hanging down from ceilings or joists.
- 2Sagging or spongy floors near exterior walls.
- 3Tiny pinholes in drywall rimmed with mud.
- 4Wood that sounds hollow when tapped.
- 5Small kick-out holes in exposed wood.
- 6Mud tubes running up foundation walls or piers.
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
Annual Renewal and Monitoring
$150–$400 per year
Ask what a renewal in Olympia actually includes, and whether it covers retreatment or repairs. A retreatment-only plan is common; damage repair coverage costs more.
- Time
- 30–60 minutes per visit
- Best for
- Keeping a treated home protected after the initial job
Localized Wood, Foam, and Borate Treatment
$250–$1,500
When termites are limited to one wall or window frame, an Olympia technician can treat that wood directly. Foam expands into voids, and borate soaks into bare lumber.
- 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)
Tenting is mainly for drywood termites. Most homes here never need it.
- 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.
Cardboard boxes stacked on a garage slab are termite food sitting right on their doorstep. Keep storage on shelves.Which termites live around Olympia.
The termite you're most likely to meet in Olympia is the western subterranean termite. It needs steady moisture. It nests in soil and builds mud tubes to reach wood.
Local termites conditions in Olympia.
An inspection in Olympia usually starts outside and works inward, checking the foundation, gaps around doors and windows, and any moisture or clutter near the structure first. Around Olympia, the area is mostly suburban, 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. Olympia sits in a marine west coast climate, and that sets the pace for termite activity here: spring swarm season (March-May), warmer earlier in the south. A provider who works Olympia and Washington 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. Knowing Olympia'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.
Sealing the gap where pipes enter the house takes away one of the easiest routes in. It won't replace treatment, but it helps.When termites swarm here.
A swarm outside means a colony is nearby. Around Olympia, western subterranean termites usually swarm in spring, and again in fall after the first good rain. Swarm season is when termites show themselves. Save a few in a bag, or snap a clear photo. A swarm inside usually means it's in the house.
Where to look around your house.
Check the piers, the sill plate and the floor joists. Take a flashlight underneath. A lot of houses around Olympia are built over crawl spaces, and that's usually where termites start. The same advice applies across the area, from Olympia out to Tacoma and Federal Way. Standing water or a musty smell needs fixing either way.
A year of termites in Olympia.
- Spring and fall: swarm seasons. Around Olympia, swarms often follow the first warm days and the first fall rain. - Winter: a good time to book an inspection in Olympia, before swarm season starts. - Fall: with about 51 inches of rain a year in Olympia, make sure gutters and downspouts carry water well away from the foundation. - Summer: with highs around 78°F in Olympia, termites follow moisture, so watch AC drain lines, sprinkler zones and hose bibs.
What happens at an inspection.
Inside, they check the garage, baseboards, plumbing gaps and the attic. They check the foundation, the soil line and nearby wood. The inspector walks the outside of the house first. Most inspections take an hour or two. Photos help. Afterward, ask them to show you what they found. A moisture meter and a probe help them find hidden activity. They'll also go into the crawl space.
Termites or ants?
- Waist: termites are thick through the middle. Ants are pinched. - Wings: termite wings are all the same length. Ant wings aren’t. - Tunnels: termite galleries are packed with mud. Ant tunnels are clean and smooth. - Debris: termites leave mud. Carpenter ants leave sawdust. - Antennae: termite antennae are straight. Ant antennae bend like an elbow.
Getting ready for treatment day.
Move boxes away from garage walls. Clear a walking path along the exterior walls. Prep is light for liquid treatments and bait stations. Drill holes in slabs or patios get patched afterward. Keep kids and pets inside while the Olympia crew applies the product, and ask how long to stay off treated soil. In Washington, pacific dampwood swarms late summer or fall; western subterranean may swarm any time of year (Oregon State). Flag sprinkler heads and buried lines.
Mulch and termites.
A dry gap along the house makes mud tubes easier to spot, and with roughly 51 inches of rain a year in Olympia, keeping that strip dry takes real grading and gutter work. Pull mulch back from the foundation and keep the layer thin. Wood chips touching the siding trap the moisture termites are after.
Questions to ask before you sign.
- What product or system will you use? - Which termites did you find, and where? - What do I need to do before and after treatment? - What does the yearly renewal cost? - What does the warranty cover, and for how long? - Is the whole foundation treated, or just one spot?
What affects the price
- Liquid barrier versus bait station system.
- Attached garages, decks, and additions.
- Linear feet of foundation to be treated.
- Warranty type: retreatment only or damage repair.
- Whole-house fumigation versus spot treatment.
- Local labor rates and licensing requirements.
📊
What's your biggest concern about termites?
When to call for help
Lenders often ask for one. It's also the cheapest termite service. Carpenter ants leave clean tunnels and sawdust. Termites leave mud. 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.
What you can do yourself
Treating an active colony is harder. The product has to reach the whole colony. It also needs even coverage around the entire foundation. Store-bought sprays usually kill only the termites you see. Some of the work is yours. Pull mulch back from the foundation. Fix leaks and clear gutters. Keep firewood away from the house.
Termites in Olympia
A typical home in Olympia is worth around $480k, which puts a few hundred dollars for an inspection and prevention in perspective. Olympia has a marine west coast climate, and termites activity here tends to pick up spring swarm season (March-May), warmer earlier in the south. Around Olympia, most of the housing is suburban, so the usual entry points, moisture spots, and sheltered areas near the structure are what an inspection checks first. Around Olympia, take a minute to note where you have seen activity and when it appears, so the inspection is faster and the quote more accurate. A local provider who knows Olympia and Washington can point out the specific conditions that matter most here before you commit to a plan. Olympia gets about 51 inches of rain a year, and average humidity sits near 77%, so the soil around foundations rarely dries out. Termites are a steady, moderate risk in Washington. Not every house gets them, but plenty do. With summer highs around 78°F, Olympia's marine west coast climate decides when local termites are busiest.
Local research
Termites in Olympia, WA: what the public record shows
Before you compare quotes, it helps to know which termites actually live in Washington, when they are busiest around Olympia, and what the state figures look like. Everything below links to the agency or university page it came from.
Termite species recorded in Washington
- 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…
- Pacific dampwood termite (Zootermopsis angusticollis) — Oregon State: 'consumes and nests inside moist, water-damaged wood'; swarms 'during late summer or fall'. A moisture problem, not a soil problem, is the usual root cause.
When termites are busiest around Olympia
Pacific dampwood swarms late summer or fall; western subterranean may swarm any time of year (Oregon State).
WSU mapping project: subterranean termites 'predominantly found in loamy soils rather than clay or rocky soils', with area maps for Kitsap County, Olympia, Seattle, Tacoma, Spokane, Tri-Cities and Yakima. Dampwood termites indicate a moisture/rot problem.
Sources: University of Georgia Extension; University of Missouri Extension; Termites | Solve Pest Problems. Figures are quoted as the source prints them. How we check our sources
Simple ways to keep termites away
- Store firewood well away from the house, off the ground.
- Caulk gaps around plumbing and utility penetrations.
- Keep the termite renewal contract current after treatment.
- Inspect used furniture for drywood pellets before bringing indoors.
- Remove tree stumps and buried wood near the house.
- Never leave form boards or scrap lumber in the soil.
Keep the inspection diagram, treatment record and warranty together. Buyers and inspectors will ask for them later.Did you know?
Around Olympia, soldier termites can't feed themselves, so the workers feed them mouth to mouth.
Around Olympia, some tropical termites grow fungus gardens inside the nest and eat the harvest.
Questions people ask
What is the difference between subterranean and drywood termites?
Drywood termites live inside the wood and leave tiny pellets. Around Olympia, the subterranean kind causes most problems. Subterranean termites live in soil and build mud tubes.
What does a WDI report include?
It also notes conditions that invite them, like wood touching soil. It only covers areas the inspector could reach. It lists any termites or damage found.
Does fumigation kill subterranean termites too?
Tenting clears termites inside the house. It doesn't reach a colony living in the soil. Not reliably.
How do I know if I have termites or flying ants?
Ants have a pinched waist; termites don't. Save one in a bag for the inspector. Check the wings and the waist. Termite wings are all the same length.
Is termite fumigation common?
Around Olympia, termites are best caught early through inspection, because the damage is hidden inside wood until it is far along. Around Olympia, a professional inspection looks for mud tubes, damaged wood, and swarming activity, and treatment targets the soil and the colony rather than just the visible wood.
Are termites common in Washington?
Around Olympia, the usual culprit is the western subterranean termite.
Nearby cities
Related guides
Sources (10)
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