The short version
Most termite problems in Tigard 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 Tigard 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 36°F slow termites near the surface around Tigard, but they move deeper and keep feeding under heated homes.
- 1Winged swarmers indoors, especially in spring.
- 2Doors and windows that suddenly stick.
- 3Mud in cracks of subfloor or joists.
- 4Discarded wings caught in spider webs.
- 5Damage found during a remodel or repair.
- 6Layered, 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.
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
Bait Station System with Monitoring
$1,500–$3,500 install, plus $300–$500 per year
Baiting is slower than a liquid barrier but reaches deeper colonies. For a Tigard home on a well or with a finished slab, it is often the cleaner option.
- Time
- 2–4 hours to install; checked quarterly
- Best for
- Colony elimination, wells and slabs, homes near water
Annual Renewal and Monitoring
$150–$400 per year
Some Tigard homeowners drop the renewal after a quiet year or two. That usually voids the warranty and leaves the barrier untested.
- Time
- 30–60 minutes per visit
- Best for
- Keeping a treated home protected after the initial job
Liquid Soil Termiticide Barrier
$1,200–$3,500 (often $3–$16 per linear foot)
A liquid barrier treatment around a Tigard home means trenching and rodding termiticide into the soil along the foundation. Non-repellent products let termites pass through and carry the chemical home to the colony under Tigard.
- Time
- Half a day to a full day
- Best for
- Active subterranean termites; fast knockdown around the foundation
Prices are typical published ranges. Ask what’s included before you compare quotes.
Crawl spaces are where termites usually get in. Joists, piers and the sill plate should all get a close look.Which termites live around Tigard.
It needs steady moisture. The termite you're most likely to meet in Tigard is the western subterranean termite. It nests in soil and builds mud tubes to reach wood.
Local termites conditions in Tigard.
Tigard sits in a mediterranean climate, and that sets the pace for termite activity here: spring swarm season (March-May), warmer earlier in the south. For Tigard homes, 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. An inspection in Tigard usually starts outside and works inward, checking the foundation, gaps around doors and windows, and any moisture or clutter near the structure first. Knowing Tigard'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 Tigard and Oregon 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.
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.
Swarm season is when termites show themselves. For Tigard homes, western subterranean termites usually swarm in spring, and again in fall after the first good rain. 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.
A lot of houses around Tigard are built over crawl spaces, and that's usually where termites start. Take a flashlight underneath. Check the piers, the sill plate and the floor joists. Standing water or a musty smell needs fixing either way. The same advice applies across the area, from Tigard out to Beaverton and Lake Oswego.
A year of termites in Tigard.
- Fall: with about 40 inches of rain a year in Tigard, make sure gutters and downspouts carry water well away from the foundation. - Winter: a good time to book an inspection in Tigard, before swarm season starts. - Spring and fall: swarm seasons. For Tigard homes, swarms often follow the first warm days and the first fall rain. - Summer: with highs around 80°F in Tigard, termites follow moisture, so watch AC drain lines, sprinkler zones and hose bibs.
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 also go into the crawl space. 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?
- 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. - Waist: termites are thick through the middle. Ants are pinched. - Antennae: termite antennae are straight. Ant antennae bend like an elbow.
Getting ready for treatment day.
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. 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.
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.
- 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 product or system will you use? - Is the whole foundation treated, or just one spot?
What affects the price
- Annual renewal and monitoring fees.
- Linear feet of foundation to be treated.
- Species: subterranean, drywood, or Formosan.
- Whole-house fumigation versus spot treatment.
- Slab, crawl space, or basement construction.
- Attached garages, decks, and additions.
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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
Some of the work is yours. Pull mulch back from the foundation. Fix leaks and clear gutters. Keep firewood away from the house. 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.
Termites in Tigard
Not every house gets them, but plenty do. With summer highs around 80°F, Tigard's mediterranean climate decides when local termites are busiest. A typical home in Tigard is worth around $545k, which puts a few hundred dollars for an inspection and prevention in perspective. About 40 inches of rain a year in Tigard is plenty for subterranean termites, especially on any side of the house kept damp by gutters or sprinklers. Termites are a steady, moderate risk in Oregon.
Local research
Termites in Tigard, OR: what the public record shows
Before you compare quotes, it helps to know which termites actually live in Oregon, when they are busiest around Tigard, and what the state figures look like. Everything below links to the agency or university page it came from.
Termite species recorded in Oregon
- 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 Tigard
Pacific dampwood swarms late summer or fall; western subterranean may swarm any time of year (Oregon State).
Oregon State: both species 'cause damage to structures in the Pacific Northwest'; control 'is best left to professional pest controllers'.
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
- Ventilate crawl spaces and control humidity.
- Keep the termite renewal contract current after treatment.
- Caulk gaps around plumbing and utility penetrations.
- Never leave form boards or scrap lumber in the soil.
- Keep six inches between soil and siding or wood.
- Address wood-to-soil contact at steps, fences, and trellises.
A liquid soil treatment goes into a trench along the foundation so termites cross it on their way to the house.Did you know?
For Tigard homes, soldier termites can't feed themselves, so the workers feed them mouth to mouth.
Questions people ask
Can termites damage a house on a concrete slab?
They come up through expansion joints, plumbing gaps and small cracks. Inspectors check those spots first. Yes.
Can I treat termites myself?
The product must reach the whole colony. It also needs even coverage around the foundation. Store-bought sprays usually kill only what you see. Prevention, yes. An active colony is harder.
What time of year do termites swarm?
For Tigard homes, western subterranean termites usually swarm in spring, and again in fall after the first good rain.
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.
Are mud tubes always a sign of active termites?
Break off a piece and check back in a week. If it's rebuilt, they're active. Not always. Old tubes can stay on a wall for years.
Are termite baits or liquid treatments more common?
A homeowner comparing quotes should expect to see both baits and a liquid barrier proposed: 48% of professionals in PCT magazine's 2025 termite market report (about 145 pest-control professionals, 2024 operations) primarily used the two together. When you get quotes in Tigard, ask each company what they usually see in your neighborhood. Most professionals use both.
Are termites common in Oregon?
Around Tigard, the usual culprit is the western subterranean termite.
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Sources (11)
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