The short version
Most termite problems in Durham 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.
Homeowners, landlords and anyone buying or selling a house in Durham, whether you've spotted something or just want to know what to watch for.
What to look for
Termites work quietly. A colony can feed inside a wall for years. Average winter lows near 30°F slow termites near the surface around Durham, but they move deeper and keep feeding under heated homes. Spongy floors or bubbling paint usually mean long-running damage. So it's worth an inspection, even for one or two signs.
- 1Winged swarmers indoors, especially in spring.
- 2Doors and windows that suddenly stick.
- 3Dry hexagonal pellets under window frames or eaves.
- 4Tiny pinholes in drywall rimmed with mud.
- 5Wood that sounds hollow when tapped.
- 6Discarded wings caught in spider webs.
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.
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Termite activity through the year in Durham
Spring
swarm season. Around Durham, expect it from April through May. Check windowsills and light fixtures for wings.
Summer
with highs around 89°F in Durham, termites follow moisture, so watch AC drain lines, sprinkler zones and hose bibs.
Fall
with about 46 inches of rain a year in Durham, make sure gutters and downspouts carry water well away from the foundation.
Winter
a good time to book an inspection in Durham, 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 Durham 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 Durham 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
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.
Check under the kitchen sink for dampness and soft cabinet wood. Plumbing walls are a common path for termites coming up from a slab.How treatment works on a typical Durham home.
With a crawl space, the crew treats soil outside and underneath. They also treat around piers and plumbing. 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.
Which termites live around Durham.
Their colonies are much bigger, though. They're less common. Formosan termites have turned up in parts of North Carolina. It needs steady moisture. It nests in soil and builds mud tubes to reach wood. The termite you're most likely to meet in Durham is the eastern subterranean termite.
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.
Save a few in a bag, or snap a clear photo. A swarm inside usually means it's in the house. A swarm outside means a colony is nearby. Look for them on warm, humid evenings around porch lights. Around Durham, formosan termites in North Carolina swarm later, from late April into June. Around Durham, eastern subterranean termites usually swarm from April through May, typically on a warm, sunny day after rain. Swarm season is when termites show themselves.
Where to look around your house.
The same advice applies across the area, from Durham out to Chapel Hill and Cary. Standing water or a musty smell needs fixing either way. Check the piers, the sill plate and the floor joists. Take a flashlight underneath. A lot of houses around Durham are built over crawl spaces, and that's usually where termites start.
A year of termites in Durham.
- Spring: swarm season. Around Durham, expect it from April through May. Check windowsills and light fixtures for wings. - Summer: with highs around 89°F in Durham, termites follow moisture, so watch AC drain lines, sprinkler zones and hose bibs. - Fall: with about 46 inches of rain a year in Durham, make sure gutters and downspouts carry water well away from the foundation. - Winter: a good time to book an inspection in Durham, 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 also go into the crawl space. 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?
- Tunnels: termite galleries are packed with mud. Ant tunnels are clean and smooth. - Debris: termites leave mud. Carpenter ants leave sawdust. - Antennae: termite antennae are straight. Ant antennae bend like an elbow. - Waist: termites are thick through the middle. Ants are pinched. - Wings: termite wings are all the same length. Ant wings aren’t.
Getting ready for treatment day.
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. Keep kids and pets inside while the Durham 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.
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 Durham 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 do I need to do before and after treatment? - What does the yearly renewal cost? - What does the warranty cover, and for how long? - Is the whole foundation treated, or just one spot? - What product or system will you use? - Which termites did you find, and where?
What affects the price
- Linear feet of foundation to be treated.
- Local labor rates and licensing requirements.
- Slab, crawl space, or basement construction.
- Species: subterranean, drywood, or Formosan.
- Warranty type: retreatment only or damage repair.
- Whole-house fumigation versus spot treatment.
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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 Durham
A local provider who knows Durham and North Carolina can point out the specific conditions that matter most here before you commit to a plan. Around Durham, take a minute to note where you have seen activity and when it appears, so the inspection is faster and the quote more accurate. Around Durham, 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. Durham has a humid subtropical climate, and termites activity here tends to pick up spring swarm season (March-May), warmer earlier in the south. A typical home in Durham is worth around $400k, which puts a few hundred dollars for an inspection and prevention in perspective. With summer highs around 89°F, Durham's humid subtropical climate decides when local termites are busiest. Most houses will see termites at some point. Termite activity in North Carolina is above average. Durham gets about 46 inches of rain a year, and average humidity sits near 71%, so the soil around foundations rarely dries out.
Local research
Termites in Durham, 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 Durham, 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 Durham
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
- Keep six inches between soil and siding or wood.
- Inspect used furniture for drywood pellets before bringing indoors.
- Extend downspouts so water drains away from walls.
- Trim shrubs so foundation walls stay visible and dry.
- Never leave form boards or scrap lumber in the soil.
- 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?
Around Durham, termites have been chewing wood for well over 100 million years, since the age of the dinosaurs.
Questions people ask
Does fumigation kill subterranean termites too?
It doesn't reach a colony living in the soil. Tenting clears termites inside the house. Not reliably.
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.
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 do I know if I have termites or flying ants?
Save one in a bag for the inspector. Ants have a pinched waist; termites don't. Termite wings are all the same length. Check the wings and the waist.
Are termite baits or liquid treatments more common?
Most professionals use both. A homeowner comparing quotes should expect to see both baits and a liquid barrier proposed: 48% of professionals in PCT magazine's 2025 termite market report (about 145 pest-control professionals, 2024 operations) primarily used the two together.
How much does a pre-construction termite treatment cost?
Around Durham, termites are best caught early through inspection, because the damage is hidden inside wood until it is far along. Around Durham, 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 Durham, the usual culprit is the eastern 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