The short version
Most termite problems in Fort Collins 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 Fort Collins 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 Fort Collins average near 17°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.
- 1Layered, honeycombed wood packed with soil.
- 2Tiny pinholes in drywall rimmed with mud.
- 3Discarded wings caught in spider webs.
- 4Wood that sounds hollow when tapped.
- 5Termite tubes hanging down from ceilings or joists.
- 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.
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Termite activity through the year in Fort Collins
Spring
swarm season in Fort Collins, often on a warm day after rain. Check windowsills for wings.
Summer
with highs around 87°F in Fort Collins, termites follow moisture, so watch AC drain lines, sprinkler zones and hose bibs.
Fall
with about 16 inches of rain a year in Fort Collins, make sure gutters and downspouts carry water well away from the foundation.
Winter
a good time to book an inspection in Fort Collins, 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
Liquid Soil Termiticide Barrier
$1,200–$3,500 (often $3–$16 per linear foot)
This is the workhorse treatment for subterranean termites in Fort Collins. Applicators trench, drill through slabs where needed, and saturate the soil.
- 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
Bait systems around Fort Collins homes need ongoing monitoring to keep working. Skip the yearly service and the stations go unchecked.
- Time
- 2–4 hours to install; checked quarterly
- Best for
- Colony elimination, wells and slabs, homes near water
Localized Wood, Foam, and Borate Treatment
$250–$1,500
For new decks, additions, or repairs in Fort Collins, borate on the framing is cheap insurance. Ask to have the wood treated before it's closed in.
- Time
- 1–3 hours
- Best for
- Small drywood spots, wall voids, and exposed framing
Prices are typical published ranges. Ask what’s included before you compare quotes.
In a basement, the wooden sill plate on top of the block wall is the first piece of wood termites reach.How treatment works on a typical Fort Collins home.
Termites carry the bait back to the colony. They're spaced every 10 to 20 feet. Bait stations are the other main option. Inside, they may drill where the floor meets the walls. With a basement, the crew treats soil along the outside. The stations are checked on a schedule, often every few months.
Which termites live around Fort Collins.
It nests in soil and builds mud tubes to reach wood. It needs steady moisture. The termite you're most likely to meet in Fort Collins is the arid-land subterranean termite.
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 Fort Collins, 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. Swarm season is when termites show themselves.
Where to look around your house.
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 Fort Collins out to Loveland and Greeley. Plenty of homes in Fort Collins have basements, so check where the wood framing sits on top of the foundation wall.
A year of termites in Fort Collins.
- Spring: swarm season in Fort Collins, often on a warm day after rain. Check windowsills for wings. - Winter: a good time to book an inspection in Fort Collins, before swarm season starts. - Fall: with about 16 inches of rain a year in Fort Collins, make sure gutters and downspouts carry water well away from the foundation. - Summer: with highs around 87°F in Fort Collins, termites follow moisture, so watch AC drain lines, sprinkler zones and hose bibs.
What happens at an inspection.
Afterward, ask them to show you what they found. A moisture meter and a probe help them find hidden activity. They'll check the basement walls and sill plate. 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.
Termites or ants?
- 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. - Debris: termites leave mud. Carpenter ants leave sawdust.
Getting ready for treatment day.
Keep kids and pets inside while the Fort Collins crew applies the product, and ask how long to stay off treated soil. Around Fort Collins, swarms usually show up between February and June, often the day after rain. Flag sprinkler heads and buried lines. 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.
Mulch and termites.
A dry gap along the house makes mud tubes easier to spot; in Fort Collins's dry climate the risk is irrigation and leaky hose bibs rather than rain. 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 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 does the warranty cover, and for how long? - What does the yearly renewal cost?
What affects the price
- Access to crawl spaces and attics.
- Extent of existing damage needing repair.
- Slab, crawl space, or basement construction.
- Species: subterranean, drywood, or Formosan.
- Cubic footage under the tent for fumigation.
- Liquid barrier versus bait station system.
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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
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 Fort Collins
A local provider who knows Fort Collins and Colorado can point out the specific conditions that matter most here before you commit to a plan. Across Fort Collins, take a minute to note where you have seen activity and when it appears, so the inspection is faster and the quote more accurate. Across Fort Collins, most of the housing is urban, so the usual entry points, moisture spots, and sheltered areas near the structure are what an inspection checks first. Fort Collins has a semi-arid climate, and termites activity here tends to pick up spring swarm season (March-May), warmer earlier in the south. A typical home in Fort Collins is worth around $540k, which puts a few hundred dollars for an inspection and prevention in perspective. With summer highs around 87°F, Fort Collins's semi-arid climate decides when local termites are busiest. Not every house gets them, but plenty do. Termites are a steady, moderate risk in Colorado. Fort Collins 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.
Local research
Termites in Fort Collins, 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 Fort Collins, and what the state figures look like. Everything below links to the agency or university page it came from.
When termites are busiest around Fort Collins
February–June (eastern subterranean, daytime after rain). Penn State: 'In Pennsylvania, swarms of winged termites usually emerge between February and June'. NC State: native species 'begin swarming in late winter and continue into September or October', and 'Swarming usually occurs during the day, particularly on warm days following rain'. Kentucky: 'Spring typically is when large numbers of winged termites... emerge inside homes'. Ohio: 'Eastern subterranean termites swarm over spring and early summer'. Missouri: swarms 'during the spring months, usually on a warm, sunny day following rain'.
Based on Fort Collins’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
- Keep gutters clean so water does not pool.
- Address wood-to-soil contact at steps, fences, and trellises.
- Trim shrubs so foundation walls stay visible and dry.
- Remove tree stumps and buried wood near the house.
- Paint or seal exposed exterior wood.
- Check the foundation for mud tubes every spring.
Keep the inspection diagram, treatment record and warranty together. Buyers and inspectors will ask for them later.Did you know?
Across Fort Collins, a termite queen can keep laying eggs for 25 years or more.
Across Fort Collins, termites have been chewing wood for well over 100 million years, since the age of the dinosaurs.
Questions people ask
What does a WDI report include?
It only covers areas the inspector could reach. It also notes conditions that invite them, like wood touching soil. It lists any termites or damage found.
How long does termite treatment take?
Fumigation takes two to three days. Bait stations take a few hours to install. A liquid barrier takes half a day to a day.
What is the difference between subterranean and drywood termites?
Around Fort Collins, the subterranean kind causes most problems. Drywood termites live inside the wood and leave tiny pellets. Subterranean termites live in soil and build mud tubes.
Will termites come back after treatment?
That's what yearly inspections and renewal plans are for. Treatments wear down and new colonies move in. They can.
Can you treat for termites before building a house?
Yes, and most termite companies offer it. Across Fort Collins, anyone planning a build can usually find a termite pre-treatment locally: 79% of locations responding to PCT magazine's 2025 termite market report (about 145 pest-control professionals, 2024 operations) offered it.
Can I pay for termite monitoring without a full treatment?
Across Fort Collins, termites are best caught early through inspection, because the damage is hidden inside wood until it is far along. Across Fort Collins, 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 Fort Collins, 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