The short version
Most termite problems in New Orleans are eastern subterranean termites, and the usual fix is a liquid soil treatment or bait stations. Drywood termites need fumigation or wood treatment instead. Start with an inspection; $75–$250 is typical.
- Look for mud tubes, shed wings and hollow-sounding wood.
- Swarms usually show up from February through April.
- Drywood termites need wood treatment or fumigation instead.
- An inspection typically costs $75–$250.
- Insurance usually doesn’t cover termite damage.
Anyone in New Orleans 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. Winters around New Orleans stay mild, with average lows near 45°F, so colonies keep feeding all year. 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.
- 2Dry hexagonal pellets under window frames or eaves.
- 3Termite tubes hanging down from ceilings or joists.
- 4Crumbling baseboards behind furniture.
- 5Wood that sounds hollow when tapped.
- 6Screwdriver sinks easily into sills or trim.
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 New Orleans
Spring
swarm season. Across New Orleans, expect it from February through April. Check windowsills and light fixtures for wings.
Summer
with highs around 91°F in New Orleans, termites follow moisture, so watch AC drain lines, sprinkler zones and hose bibs.
Fall
with about 64 inches of rain a year in New Orleans, make sure gutters and downspouts carry water well away from the foundation.
Winter
a good time to book an inspection in New Orleans, 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
Bait Station System with Monitoring
$1,500–$3,500 install, plus $300–$500 per year
Bait stations are set into the ground every 10 to 20 feet around a New Orleans home. Foraging workers carry the slow-acting bait home, and the colony collapses.
- Time
- 2–4 hours to install; checked quarterly
- Best for
- Colony elimination, wells and slabs, homes near water
Annual Renewal and Monitoring
$150–$400 per year
Ask what a renewal in New Orleans actually includes, and whether it covers retreatment or repairs. A retreatment-only plan is common; damage repair coverage costs more.
- Time
- 30–60 minutes per visit
- Best for
- Keeping a treated home protected after the initial job
Fumigation for Drywood Termites
$1,200–$4,000 (often $1–$4 per square foot)
Before tenting a New Orleans home, food and medicine are bagged and plants near the walls are protected. The fumigator handles the gas, aeration, and clearance testing.
- 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.
A slow leak under a sink keeps the wood damp, and damp wood is exactly what termites are looking for.How treatment works on a typical New Orleans home.
Under patios and garage floors, they drill small holes. Treatment goes in through the holes, which get patched afterward. 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. Across New Orleans, on a slab, the crew treats the soil along the outside walls.
Which termites live around New Orleans.
It nests in soil and builds mud tubes to reach wood. It needs steady moisture. Formosan termites are established in Louisiana too. They arrived through Gulf Coast ports. Their colonies are much bigger than native ones. They can do more damage, faster. Drywood termites turn up now and then, mostly in older wood. Look for tiny piles of hard, sand-like pellets. The termite you're most likely to meet in New Orleans is the eastern 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.
Across New Orleans, eastern subterranean termites usually swarm from February through April, typically on a warm, sunny day after rain. Formosan termites in Louisiana swarm later, from late April into June. Look for them on warm, humid evenings around porch lights. Drywood termites swarm on spring and summer evenings, often near lights. 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.
Check the garage edges and behind baseboards. Look where pipes come through the floor. Outside, watch for mud tubes behind shrubs. Keep soil and mulch below the slab edge. The same advice applies across the area, from New Orleans out to Gretna and Kenner. Many homes in New Orleans sit on concrete slabs, so termites come up through expansion joints, plumbing gaps and settlement cracks.
A year of termites in New Orleans.
- Winter: a good time to book an inspection in New Orleans, before swarm season starts. - Spring: swarm season. Across New Orleans, expect it from February through April. Check windowsills and light fixtures for wings. - Summer: with highs around 91°F in New Orleans, termites follow moisture, so watch AC drain lines, sprinkler zones and hose bibs. - Fall: with about 64 inches of rain a year in New Orleans, make sure gutters and downspouts carry water well away from the foundation.
What happens at an inspection.
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. On a slab, they focus on joints, cracks and pipe gaps. 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.
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.
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 New Orleans crew applies the product, and ask how long to stay off treated soil. In Louisiana, formosan swarms in the Gulf South occur in evenings from April to July (FDACS); native Reticulitermes swarm in late winter and spring (UGA). Drill holes in slabs or patios get patched afterward. Prep is light for liquid treatments and bait stations.
Mulch and termites.
A dry gap along the house makes mud tubes easier to spot, and with roughly 64 inches of rain a year in New Orleans, keeping that strip dry takes real grading and gutter work. Wood chips touching the siding trap the moisture termites are after. Pull mulch back from the foundation and keep the layer thin.
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
- Linear feet of foundation to be treated.
- Extent of existing damage needing repair.
- Species: subterranean, drywood, or Formosan.
- Attached garages, decks, and additions.
- Slab, crawl space, or basement construction.
- Whole-house fumigation versus spot treatment.
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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 New Orleans
New Orleans gets about 64 inches of rain a year, and average humidity sits near 77%, so the soil around foundations rarely dries out. Louisiana is one of the most termite-active states in the country. An annual inspection is common sense here. With summer highs around 91°F, New Orleans's humid subtropical climate decides when local termites are busiest. A typical home in New Orleans is worth around $245k, which puts a few hundred dollars for an inspection and prevention in perspective.
Local research
Termites in New Orleans, LA: what the public record shows
Before you compare quotes, it helps to know which termites actually live in Louisiana, when they are busiest around New Orleans, and what the state figures look like. Everything below links to the agency or university page it came from.
Termite species recorded in Louisiana
- 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…
When termites are busiest around New Orleans
Formosan swarms in the Gulf South occur in evenings from April to July (FDACS); native Reticulitermes swarm in late winter and spring (UGA).
FDACS and UGA both list Louisiana among states where the Formosan subterranean termite is established. (LSU AgCenter pages could not be fetched this session; Louisiana-specific figures are not recorded.)
Sources: 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
- Screen attic and foundation vents with fine mesh.
- Store firewood well away from the house, off the ground.
- Keep the termite renewal contract current after treatment.
- Fix leaking hose bibs, faucets, and pipes promptly.
- Keep mulch at least a foot from the foundation.
A liquid soil treatment goes into a trench along the foundation so termites cross it on their way to the house.Did you know?
Across New Orleans, termites have been chewing wood for well over 100 million years, since the age of the dinosaurs.
Across New Orleans, a termite queen can keep laying eggs for 25 years or more.
Questions people ask
How long does termite treatment take?
A liquid barrier takes half a day to a day. Bait stations take a few hours to install. Fumigation takes two to three days.
Do I have to leave my house during termite treatment?
Not for a soil treatment or bait stations. Fumigation is different. Everyone leaves for two to three days, pets and houseplants included.
What is the difference between subterranean and drywood termites?
Subterranean termites live in soil and build mud tubes. Drywood termites live inside the wood and leave tiny pellets. Around New Orleans, the subterranean kind causes most problems.
How do I know if I have termites or flying ants?
Check the wings and the waist. Termite wings are all the same length. Ants have a pinched waist; termites don't. Save one in a bag for the inspector.
Can I treat termites myself?
Prevention, yes. An active colony is harder. The product must reach the whole colony. It also needs even coverage around the foundation. Store-bought sprays usually kill only what you see.
When is termite swarming season?
Across New Orleans, termites are best caught early through inspection, because the damage is hidden inside wood until it is far along. Across New Orleans, 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 Louisiana?
Around New Orleans, the usual culprit is the eastern subterranean termite.
Nearby cities
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Sources (9)
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