The short version
Most termite treatments for a home in Longmont cost about $1,200–$3,500. For Longmont homes, bait systems cost about the same to install, plus a yearly monitoring fee. An inspection usually runs $75–$250.
- Most treatments in Longmont cost about $1,200–$3,500.
- Bait systems add a yearly monitoring fee.
- Inspections usually cost $75–$250.
- Compare what each quote covers, not just the total.
- Insurance usually doesn’t cover termite damage.
Anyone in Longmont 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. Winter lows around Longmont average near 16°F, so termites retreat deeper into the soil, though colonies under heated basements can stay active all winter.
- 1Piles of identical shed wings on windowsills.
- 2Blistered or bubbling paint on wood surfaces.
- 3Discarded wings caught in spider webs.
- 4Dry hexagonal pellets under window frames or eaves.
- 5Live pale insects inside a broken mud tube.
- 6Sagging or spongy floors near exterior walls.
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.
costs U.S. homeowners billions of dollars a yearTermite damageUSDA 🧮
Estimate termite treatment cost in Longmont
Adjust for your situation to see a ballpark range.
Estimated range
A rough guide only. Your quote depends on your house and what the inspection finds.
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 Longmont. 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
Ask how many stations they plan for your Longmont 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.What termite work costs in Longmont.
- Liquid Soil Termiticide Barrier: $1,200–$3,500 (often $3–$16 per linear foot) - Bait Station System with Monitoring: $1,500–$3,500 install, plus $300–$500 per year - Fumigation for Drywood Termites: $1,200–$4,000 (often $1–$4 per square foot) - A typical home in Longmont is worth around $550k, so a $1,200–$3,500 treatment is a small share of what's at stake. Basement homes around Longmont may need drilling along inside walls, which adds time. - Termite Inspection and WDI Report: $75–$250
Local termites conditions in Longmont.
Longmont sits in a semi-arid climate, and that sets the pace for termite activity here: spring swarm season (March-May), warmer earlier in the south. For Longmont 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 Longmont usually starts outside and works inward, checking the foundation, gaps around doors and windows, and any moisture or clutter near the structure first. Knowing Longmont'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 Longmont and Colorado 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.
A downspout that dumps water at the foundation keeps the soil wet year-round. Extend it well away from the house.Which termites live around Longmont.
It needs steady moisture. The termite you're most likely to meet in Longmont is the arid-land subterranean termite. It nests in soil and builds mud tubes to reach wood.
When termites swarm here.
Swarm season is when termites show themselves. For Longmont homes, 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 Longmont 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 Longmont out to Boulder and Loveland.
A year of termites in Longmont.
- Fall: with about 14 inches of rain a year in Longmont, make sure gutters and downspouts carry water well away from the foundation. - Winter: a good time to book an inspection in Longmont, before swarm season starts. - Spring: swarm season in Longmont, often on a warm day after rain. Check windowsills for wings. - Summer: with highs around 88°F in Longmont, termites follow moisture, so watch AC drain lines, sprinkler zones and hose bibs.
Ways to keep the cost down.
- If you already have a warranty, keep the renewal current. - Book before swarm season, when schedules fill up. - Get two or three quotes, and compare what each one covers. - Fix leaks and drainage first. Moisture brings termites back. - Ask about both bait and liquid options for your house.
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?
- 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
- Warranty type: retreatment only or damage repair.
- Extent of existing damage needing repair.
- Local labor rates and licensing requirements.
- Amount of drilling through concrete and patios.
- Time of year and how booked up local companies are.
- Wells, drains, or water features limiting chemical use.
- Liquid barrier versus bait station system.
- Whole-house fumigation versus spot treatment.
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What's your biggest concern about termite control costs?
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
Store-bought sprays usually kill only the termites you see. It also needs even coverage around the entire foundation. The product has to reach the whole colony. Treating an active colony is harder. Keep firewood away from the house. Fix leaks and clear gutters. Pull mulch back from the foundation. Some of the work is yours.
Termites in Longmont
Not every house gets them, but plenty do. With summer highs around 88°F, Longmont's semi-arid climate decides when local termites are busiest. A typical home in Longmont is worth around $550k, which puts a few hundred dollars for an inspection and prevention in perspective. Longmont only sees about 14 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.
Local research
Termites in Longmont, 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 Longmont, and what the state figures look like. Everything below links to the agency or university page it came from.
When termites are busiest around Longmont
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 Longmont’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 mulch at least a foot from the foundation.
- Address wood-to-soil contact at steps, fences, and trellises.
- Seal cracks in the foundation and slab.
- Keep gutters clean so water does not pool.
- Ventilate crawl spaces and control humidity.
- Install a vapor barrier over crawl space soil.
Compare quotes line by line: the areas treated, the product, the warranty and the renewal fee. The lowest total isn't always the best deal.Did you know?
For Longmont homes, termites are closer cousins to cockroaches than to ants, despite the old nickname white ants.
For Longmont homes, termites have been chewing wood for well over 100 million years, since the age of the dinosaurs.
Questions people ask
Does homeowner insurance pay for termite damage?
Most policies treat termite damage as preventable. That's why catching it early matters. Usually not.
What does a termite warranty cover?
Others also cover repairs. Ask what's excluded, and whether it transfers if you sell. It depends on the plan. Some cover re-treatment only.
How much does a termite inspection cost?
Some companies credit it toward treatment if you go ahead. It's worth asking. Usually $75–$250.
How much does termite fumigation cost?
It's mainly for drywood termites. Most homes around Longmont never need it. Usually $1,200–$4,000, often $1–$4 per square foot.
How do I choose a termite company?
Ask what the warranty covers. Compare the proposals, not just the totals. Make sure they're licensed in Colorado. Ask which termites they found and what product they'll use.
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.
How long do termite bait stations take to work?
Termites have to find the stations first. Then the bait spreads through the colony. Usually several weeks to a few months.
Can I treat termites myself instead of hiring a professional?
For Longmont homes, termites are best caught early through inspection, because the damage is hidden inside wood until it is far along. For Longmont 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 Longmont, the usual culprit is the arid-land subterranean termite.
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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