The short version
Most termite problems in Centennial are arid-land 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 and early summer.
- 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 Centennial 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. Winter lows around Centennial average near 18°F, so termites retreat deeper into the soil, though colonies under heated basements can stay active all winter. Spongy floors or bubbling paint usually mean long-running damage. So it's worth an inspection, even for one or two signs.
- 1Blistered or bubbling paint on wood surfaces.
- 2Screwdriver sinks easily into sills or trim.
- 3Discarded wings caught in spider webs.
- 4Damage found during a remodel or repair.
- 5Piles of identical shed wings on windowsills.
- 6Live pale insects inside a broken mud tube.
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.
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Termite activity through the year in Centennial
Spring
swarm season in Centennial, often on a warm day after rain. Check windowsills for wings.
Summer
with highs around 88°F in Centennial, termites follow moisture, so watch AC drain lines, sprinkler zones and hose bibs.
Fall
with about 16 inches of rain a year in Centennial, make sure gutters and downspouts carry water well away from the foundation.
Winter
a good time to book an inspection in Centennial, before swarm season starts.
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
Termites do not stop foraging after a treatment, so monitoring matters. Yearly visits to a Centennial home catch new tubes before they reach framing.
- 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
Borate is brushed or sprayed onto bare wood in crawl spaces. Termites that eat treated wood around a Centennial home die, and the protection lasts as long as the wood stays dry.
- Time
- 1–3 hours
- Best for
- Small drywood spots, wall voids, and exposed framing
Liquid Soil Termiticide Barrier
$1,200–$3,500 (often $3–$16 per linear foot)
The label on the termiticide is federal law, so a licensed Centennial applicator follows it exactly. Ask which active ingredient is used and how long it lasts.
- 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.How treatment works on a typical Centennial home.
With a basement, the crew treats soil along the outside. Inside, they may drill where the floor meets the walls. Bait stations are the other main option. They're spaced every 10 to 20 feet. Termites carry the bait back to the colony. The stations are checked on a schedule, often every few months.
Which termites live around Centennial.
The termite you're most likely to meet in Centennial is the arid-land subterranean termite. It nests in soil and builds mud tubes to reach wood. It needs steady moisture.
Subterranean termites don't stop in winter; they just go deeper. A quiet season is a good time for a non-urgent inspection.When termites swarm here.
Swarm season is when termites show themselves. In Centennial, arid-land subterranean termites usually swarm in spring and early summer, often on a warm day after 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.
Plenty of homes in Centennial 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 Centennial out to Parker and Aurora.
A year of termites in Centennial.
- Spring: swarm season in Centennial, often on a warm day after rain. Check windowsills for wings. - Summer: with highs around 88°F in Centennial, termites follow moisture, so watch AC drain lines, sprinkler zones and hose bibs. - Fall: with about 16 inches of rain a year in Centennial, make sure gutters and downspouts carry water well away from the foundation. - Winter: a good time to book an inspection in Centennial, 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
- Time of year and how booked up local companies are.
- Annual renewal and monitoring fees.
- Slab, crawl space, or basement construction.
- Whole-house fumigation versus spot treatment.
- Liquid barrier versus bait station system.
- Access to crawl spaces and attics.
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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
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 Centennial
Centennial only sees about 16 inches of rain a year, so local termites gather wherever water collects, like sprinkler zones, hose bibs and AC drain lines. Termites are a steady, moderate risk in Colorado. Not every house gets them, but plenty do. With summer highs around 88°F, Centennial's semi-arid climate decides when local termites are busiest. A typical home in Centennial is worth around $595k, which puts a few hundred dollars for an inspection and prevention in perspective. Centennial has a semi-arid climate, and termites activity here tends to pick up spring swarm season (March-May), warmer earlier in the south. In Centennial, 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. In Centennial, 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 Centennial and Colorado can point out the specific conditions that matter most here before you commit to a plan. In Centennial, before you book, ask whether the inspection is included, what the treatment plan covers, how many visits to expect, and what the written quote includes. In Centennial, getting the scope, the prep steps, and any follow-up terms in writing makes it much easier to compare providers fairly, and a good provider will walk you through each of these without pressure.
Local research
Termites in Centennial, CO: what the public record shows
Before you compare quotes, it helps to know which termites actually live in Colorado, when they are busiest around Centennial, and what the state figures look like. Everything below links to the agency or university page it came from.
When termites are busiest around Centennial
July–September (desert subterranean, late afternoon/evening with summer rains); summer–fall (drywood). UC IPM: 'Heterotermes aureus flies in the late afternoon or early evening in July, August, and September', which coincides with the Southwest monsoon months. Arizona Extension lists Heterotermes aureus as an 'important structural pest' and notes drywood species Incisitermes minor and Marginitermes hubbardi in the desert Southwest. Drywood swarmers appear 'during daytime hours during summer and fall'.
Based on Centennial’s semi-arid climate profile.
Sources: University of Georgia Extension; University of Missouri Extension. Figures are quoted as the source prints them. How we check our sources
Simple ways to keep termites away
- Caulk gaps around plumbing and utility penetrations.
- Screen attic and foundation vents with fine mesh.
- Keep gutters clean so water does not pool.
- Trim shrubs so foundation walls stay visible and dry.
- Store firewood well away from the house, off the ground.
Keep the inspection diagram, treatment record and warranty together. Buyers and inspectors will ask for them later.Did you know?
In Centennial, some tropical termites grow fungus gardens inside the nest and eat the harvest.
In Centennial, a termite queen can keep laying eggs for 25 years or more.
Questions people ask
Can termites damage a house on a concrete slab?
Yes. They come up through expansion joints, plumbing gaps and small cracks. Inspectors check those spots first.
Can I treat termites myself?
Prevention, yes. An active colony is harder. The product must reach the whole colony. It also needs even coverage around the foundation. Store-bought sprays usually kill only what you see.
How do I choose a termite company?
Make sure they're licensed in Colorado. Ask which termites they found and what product they'll use. Ask what the warranty covers. Compare the proposals, not just the totals.
Do I need a termite inspection when buying a house?
Usually, yes. Many lenders ask for a wood-destroying insect (WDI) report. Either way, it's cheap peace of mind. Ask your agent when it's due.
Do most pest control companies treat existing homes for termites?
In Centennial, termites are best caught early through inspection, because the damage is hidden inside wood until it is far along. In Centennial, 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 Colorado?
Around Centennial, the usual culprit is the arid-land 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