The short version
Most termite problems in Cary are eastern 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 from April through May.
- 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 Cary 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 30°F slow termites near the surface around Cary, but they move deeper and keep feeding under heated homes.
- 1Crumbling baseboards behind furniture.
- 2Tiny pinholes in drywall rimmed with mud.
- 3Damage found during a remodel or repair.
- 4Sagging or spongy floors near exterior walls.
- 5Screwdriver sinks easily into sills or trim.
- 6Dry hexagonal pellets under window frames or eaves.
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.
- Formosan colonies are large and can do serious damage quickly.
📅
Termite activity through the year in Cary
Spring
swarm season. Across Cary, expect it from April through May. Check windowsills and light fixtures for wings.
Summer
with highs around 89°F in Cary, termites follow moisture, so watch AC drain lines, sprinkler zones and hose bibs.
Fall
with about 46 inches of rain a year in Cary, make sure gutters and downspouts carry water well away from the foundation.
Winter
a good time to book an inspection in Cary, 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)
A liquid barrier treatment around a Cary 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 Cary.
- Time
- Half a day to a full day
- Best for
- Active subterranean termites; fast knockdown around the foundation
Localized Wood, Foam, and Borate Treatment
$250–$1,500
Foam termiticide is injected into wall voids liquid cannot reach. In Cary this pairs well with a soil barrier around tricky slab construction.
- 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
Bait systems around Cary 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
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 Cary home.
Fix any moisture under the house too. 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. With a crawl space, the crew treats soil outside and underneath. They also treat around piers and plumbing.
Which termites live around Cary.
It nests in soil and builds mud tubes to reach wood. It needs steady moisture. Formosan termites have turned up in parts of North Carolina. They're less common. Their colonies are much bigger, though. The termite you're most likely to meet in Cary is the eastern subterranean termite.
Sealing the gap where pipes enter the house takes away one of the easiest routes in. It won't replace treatment, but it helps.When termites swarm here.
Save a few in a bag, or snap a clear photo. Swarm season is when termites show themselves. Across Cary, eastern subterranean termites usually swarm from April through May, typically on a warm, sunny day after rain. Across Cary, formosan termites in North Carolina swarm later, from late April into June. Look for them on warm, humid evenings around porch lights. A swarm outside means a colony is nearby. A swarm inside usually means it's in the house.
Where to look around your house.
The same advice applies across the area, from Cary out to Apex and Raleigh. A lot of houses around Cary 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.
A year of termites in Cary.
- Spring: swarm season. Across Cary, expect it from April through May. Check windowsills and light fixtures for wings. - Summer: with highs around 89°F in Cary, termites follow moisture, so watch AC drain lines, sprinkler zones and hose bibs. - Fall: with about 46 inches of rain a year in Cary, make sure gutters and downspouts carry water well away from the foundation. - Winter: a good time to book an inspection in Cary, before swarm season starts.
What happens at an inspection.
A moisture meter and a probe help them find hidden activity. Afterward, ask them to show you what they found. Photos help. 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.
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.
Keep kids and pets inside while the Cary crew applies the product, and ask how long to stay off treated soil. In North Carolina, native species begin swarming in late winter and continue into September or October, usually during the day on warm days following rain (NC State). Drill holes in slabs or patios get patched afterward. Prep is light for liquid treatments and bait stations. Clear a walking path along the exterior walls. Move boxes away from garage walls. Flag sprinkler heads and buried lines.
Mulch and termites.
Pull mulch back from the foundation and keep the layer thin. A dry gap along the house makes mud tubes easier to spot; in Cary that means extending downspouts and pulling mulch back from the slab. Wood chips touching the siding trap the moisture termites are after.
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
- Amount of drilling through concrete and patios.
- Species: subterranean, drywood, or Formosan.
- Annual renewal and monitoring fees.
- Access to crawl spaces and attics.
- Liquid barrier versus bait station system.
- Cubic footage under the tent for fumigation.
📊
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 Cary
A typical home in Cary is worth around $540k, which puts a few hundred dollars for an inspection and prevention in perspective. Cary has a humid subtropical climate, and termites activity here tends to pick up spring swarm season (March-May), warmer earlier in the south. Across Cary, 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. Across Cary, 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 Cary and North Carolina can point out the specific conditions that matter most here before you commit to a plan. Cary gets about 46 inches of rain a year, and average humidity sits near 70%, so the soil around foundations rarely dries out. Termite activity in North Carolina is above average. Most houses will see termites at some point. With summer highs around 89°F, Cary's humid subtropical climate decides when local termites are busiest.
Local research
Termites in Cary, NC: what the public record shows
Before you compare quotes, it helps to know which termites actually live in North Carolina, when they are busiest around Cary, and what the state figures look like. Everything below links to the agency or university page it came from.
Native subterranean termite species in North Carolina
Multiple species with staggered swarm seasons mean swarmers can appear from late winter into fall.
NC State ExtensionTypical soil termiticide application rate
A proper treatment uses a lot of product; very cheap quotes may mean under-application.
NC State ExtensionTermite species recorded in North Carolina
- Eastern subterranean termite (Reticulitermes flavipes) — UGA calls it 'the most widely distributed subterranean termite, and it is the most common termite found in the eastern United States'; it swarms February through April in Georgi…
- Formosan subterranean termite (Coptotermes formosanus) — FDACS lists it in Florida, Alabama, Georgia, Louisiana, Mississippi, South Carolina, North Carolina, Tennessee, Virginia, Texas, Arizona, California and Hawaii. Colonies contain…
- Dark and light southeastern subterranean termites (Reticulitermes virginicus; Reticulitermes hageni) — UGA: both are 'generally less economically important when compared to R. flavipes'; R. virginicus swarms April–June and R. hageni July–September. Part of the Reticulitermes comp…
When termites are busiest around Cary
Native species begin swarming in late winter and continue into September or October, usually during the day on warm days following rain (NC State).
The NC Official Wood-Destroying Insect Information Report 'is the only form that is legal for this purpose and is required on almost every residential structure sold', and must be issued by a licensee of the NCDA&CS Structural Pest Control Division. NC State references state rules requiring drilling and treating attached slabs and voids near known activity. FDACS and UGA list NC among Formosan states.
Rules that apply in North Carolina
Sources: NC State Extension; Biology of Subterranean Termites in the Eastern United States (B1209); University of Missouri Extension; Formosan Termite Program. Figures are quoted as the source prints them. How we check our sources
Simple ways to keep termites away
- Never leave form boards or scrap lumber in the soil.
- Ventilate crawl spaces and control humidity.
- Inspect used furniture for drywood pellets before bringing indoors.
- Seal cracks in the foundation and slab.
- Extend downspouts so water drains away from walls.
- Caulk gaps around plumbing and utility penetrations.
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?
Some African termite mounds stand more than 25 feet tall.
Across Cary, termites are closer cousins to cockroaches than to ants, despite the old nickname white ants.
Questions people ask
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.
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.
What is the difference between subterranean and drywood termites?
Drywood termites live inside the wood and leave tiny pellets. Around Cary, the subterranean kind causes most problems. Subterranean termites live in soil and build mud tubes.
Will termites come back after treatment?
Treatments wear down and new colonies move in. That's what yearly inspections and renewal plans are for. They can.
Can I pay for termite monitoring without a full treatment?
Across Cary, termites are best caught early through inspection, because the damage is hidden inside wood until it is far along. Across Cary, 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 North Carolina?
Around Cary, the usual culprit is the eastern subterranean termite.
Nearby cities
Related guides
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