The short version
Most termite problems in Westminster 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 Westminster 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 Westminster average near 19°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.
- 1Small kick-out holes in exposed wood.
- 2Termite activity reported at a neighbor's home.
- 3Discarded wings caught in spider webs.
- 4Tiny pinholes in drywall rimmed with mud.
- 5Doors and windows that suddenly stick.
- 6Blistered or bubbling paint on wood surfaces.
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 Westminster
Spring
swarm season in Westminster, often on a warm day after rain. Check windowsills for wings.
Summer
with highs around 89°F in Westminster, termites follow moisture, so watch AC drain lines, sprinkler zones and hose bibs.
Fall
with about 16 inches of rain a year in Westminster, make sure gutters and downspouts carry water well away from the foundation.
Winter
a good time to book an inspection in Westminster, 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
Localized Wood, Foam, and Borate Treatment
$250–$1,500
A local treatment is cheaper than fumigation but only covers what the Westminster technician can find. Hidden drywood galleries elsewhere in the house are not touched.
- Time
- 1–3 hours
- Best for
- Small drywood spots, wall voids, and exposed framing
Bait Station System with Monitoring
$1,500–$3,500 install, plus $300–$500 per year
Ask how many stations they plan for your Westminster 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
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.
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 Westminster home.
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. Termites carry the bait back to the colony. They're spaced every 10 to 20 feet.
Which termites live around Westminster.
It nests in soil and builds mud tubes to reach wood. It needs steady moisture. The termite you're most likely to meet in Westminster is the arid-land subterranean termite.
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.
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. For Westminster homes, arid-land subterranean termites usually swarm in spring and early summer, often on a warm day after rain.
Where to look around your house.
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 Westminster out to Arvada and Thornton. Plenty of homes in Westminster have basements, so check where the wood framing sits on top of the foundation wall. Look around window wells and unfinished walls.
A year of termites in Westminster.
- Fall: with about 16 inches of rain a year in Westminster, make sure gutters and downspouts carry water well away from the foundation. - Summer: with highs around 89°F in Westminster, termites follow moisture, so watch AC drain lines, sprinkler zones and hose bibs. - Spring: swarm season in Westminster, often on a warm day after rain. Check windowsills for wings. - Winter: a good time to book an inspection in Westminster, before swarm season starts.
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 check the basement walls and sill plate.
Termites or ants?
- 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. - Wings: termite wings are all the same length. Ant wings aren’t.
Getting ready for treatment day.
Mark sprinkler heads and any buried lines. Move stored boxes away from garage walls. Clear a path along the outside walls. Soil treatments and bait stations need little prep. Any drill holes in a slab or patio get patched. Ask how long to stay off treated soil. Keep pets and kids inside while the crew works outside.
Mulch and termites.
A dry strip along the house lets you spot mud tubes. Keep mulch thin and pull it back from the foundation. Wood chips right against siding hold moisture termites like.
Questions to ask before you sign.
- 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? - Which termites did you find, and where?
What affects the price
- Whole-house fumigation versus spot treatment.
- Time of year and how booked up local companies are.
- Access to crawl spaces and attics.
- Linear feet of foundation to be treated.
- Species: subterranean, drywood, or Formosan.
- Warranty type: retreatment only or damage repair.
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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
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 Westminster
A local provider who knows Westminster and Colorado can point out the specific conditions that matter most here before you commit to a plan. For Westminster homes, take a minute to note where you have seen activity and when it appears, so the inspection is faster and the quote more accurate. For Westminster homes, 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. Westminster 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 Westminster is worth around $525k, which puts a few hundred dollars for an inspection and prevention in perspective. With summer highs around 89°F, Westminster'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. Westminster 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 Westminster, 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 Westminster, and what the state figures look like. Everything below links to the agency or university page it came from.
When termites are busiest around Westminster
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 Westminster’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
- Seal cracks in the foundation and slab.
- Inspect used furniture for drywood pellets before bringing indoors.
- Repair rotting trim, fascia, and window frames.
- Never leave form boards or scrap lumber in the soil.
- Set deck and porch posts on concrete, not soil.
- Trim shrubs so foundation walls stay visible and dry.
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 Westminster homes, when danger shows up, soldier termites bang their heads against the tunnel walls to warn the colony.
For Westminster homes, soldier termites can't feed themselves, so the workers feed them mouth to mouth.
Questions people ask
Do I have to leave my house during termite treatment?
Everyone leaves for two to three days, pets and houseplants included. Fumigation is different. Not for a soil treatment or bait stations.
Can I treat termites myself?
Store-bought sprays usually kill only what you see. It also needs even coverage around the foundation. The product must reach the whole colony. An active colony is harder. Prevention, yes.
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.
Do I need a termite inspection when buying a house?
Ask your agent when it's due. Either way, it's cheap peace of mind. Many lenders ask for a wood-destroying insect (WDI) report. Usually, yes.
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.
Is termite fumigation common?
A homeowner quoted a tent job is buying a specialist service. Whole-house tenting is the exception, not the rule: 16% of locations in PCT magazine's 2025 termite market report (about 145 pest-control professionals, 2024 operations) offered fumigation. No.
Can a household pest infestation affect your health?
For Westminster homes, termites are best caught early through inspection, because the damage is hidden inside wood until it is far along. For Westminster homes, 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 Westminster, 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