The short version
Most termite problems in St. Petersburg 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.
Homeowners, landlords and anyone buying or selling a house in St. Petersburg, 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. Winters around St. Petersburg stay mild, with average lows near 53°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.
- 1Piles of identical shed wings on windowsills.
- 2Wood that sounds hollow when tapped.
- 3Live pale insects inside a broken mud tube.
- 4Sagging or spongy floors near exterior walls.
- 5Winged swarmers indoors, especially in spring.
- 6Doors and windows that suddenly stick.
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 St. Petersburg
Spring
swarm season. For St. Petersburg homes, expect it from February through April. Check windowsills and light fixtures for wings.
Summer
with highs around 91°F in St. Petersburg, termites follow moisture, so watch AC drain lines, sprinkler zones and hose bibs.
Fall
with about 50 inches of rain a year in St. Petersburg, make sure gutters and downspouts carry water well away from the foundation.
Winter
a good time to book an inspection in St. Petersburg, 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)
This is the workhorse treatment for subterranean termites in St. Petersburg. 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
Fumigation for Drywood Termites
$1,200–$4,000 (often $1–$4 per square foot)
Tenting is thorough but leaves no residual protection behind. New drywood swarmers can land on a St. Petersburg home the following season, so follow-up inspections still matter.
- Time
- 2–3 days including tenting and aeration
- Best for
- Widespread drywood termites throughout a structure
Annual Renewal and Monitoring
$150–$400 per year
Some St. Petersburg homeowners drop the renewal after a quiet year or two. That usually voids the warranty and leaves the barrier untested.
- Time
- 30–60 minutes per visit
- Best for
- Keeping a treated home protected after the initial job
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 St. Petersburg home.
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. For St. Petersburg homes, on a slab, the crew treats the soil along the outside walls. Under patios and garage floors, they drill small holes. Treatment goes in through the holes, which get patched afterward.
Which termites live around St. Petersburg.
They arrived through Gulf Coast ports. Their colonies are much bigger than native ones. They can do more damage, faster. Drywood termites are common around St. Petersburg as well, flying straight into attic framing, eaves and furniture without any soil contact. Look for tiny piles of pellets that look like coarse sand. The termite you're most likely to meet in St. Petersburg is the eastern subterranean termite. It nests in soil and builds mud tubes to reach wood. It needs steady moisture. Formosan termites are established in Florida too.
Mulch piled against the house and a dripping hose bib give termites moisture and cover. Pull mulch back and fix the drip.When termites swarm here.
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. For St. Petersburg homes, eastern subterranean termites usually swarm from February through April, typically on a warm, sunny day after rain. Formosan termites in Florida swarm later, from late April into June.
Where to look around your house.
Outside, watch for mud tubes behind shrubs. Keep soil and mulch below the slab edge. The same advice applies across the area, from St. Petersburg out to Clearwater and Tampa. Many homes in St. Petersburg sit on concrete slabs, so termites come up through expansion joints, plumbing gaps and settlement cracks. Check the garage edges and behind baseboards. Look where pipes come through the floor.
A year of termites in St. Petersburg.
- Summer: with highs around 91°F in St. Petersburg, termites follow moisture, so watch AC drain lines, sprinkler zones and hose bibs. - Fall: with about 50 inches of rain a year in St. Petersburg, make sure gutters and downspouts carry water well away from the foundation. - Winter: a good time to book an inspection in St. Petersburg, before swarm season starts. - Spring: swarm season. For St. Petersburg homes, expect it from February through April. Check windowsills and light fixtures for wings.
What happens at an inspection.
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. 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.
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. 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.
Mulch and termites.
A dry strip along the house lets you spot mud tubes. Wood chips right against siding hold moisture termites like. Keep mulch thin and pull it back from the foundation.
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
- Time of year and how booked up local companies are.
- Cubic footage under the tent for fumigation.
- Number of bait stations required.
- Species: subterranean, drywood, or Formosan.
- Wells, drains, or water features limiting chemical use.
- Attached garages, decks, and additions.
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What's your biggest concern about termites?
When to call for help
Termites leave mud. Carpenter ants leave clean tunnels and sawdust. It's also the cheapest termite service. Lenders often ask for one. Get a wood-destroying insect (WDI) report either way. Buying or selling? Hollow-sounding wood is another clue. Call if you see mud tubes, pellets or an indoor swarm.
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 St. Petersburg
St. Petersburg gets about 50 inches of rain a year, and average humidity sits near 74%, so the soil around foundations rarely dries out. Florida is one of the most termite-active states in the country. An annual inspection is common sense here. With summer highs around 91°F, St. Petersburg's humid subtropical climate decides when local termites are busiest. A typical home in St. Petersburg is worth around $375k, which puts a few hundred dollars for an inspection and prevention in perspective.
Local research
Termites in St. Petersburg, FL: what the public record shows
Before you compare quotes, it helps to know which termites actually live in Florida, when they are busiest around St. Petersburg, and what the state figures look like. Everything below links to the agency or university page it came from.
Termite species established in Florida
Florida has more structural termite species than any other state, so identification drives the treatment choice.
UF/IFAS ExtensionInvasive termite species in Florida
The invasive Formosan and Asian subterranean termites and the West Indian drywood termite are the ones most likely to be in a home.
UF/IFAS ExtensionFormosan termite peak swarm month in Florida
Evening swarms around lights in May are the most common way Florida homeowners discover Formosan colonies.
UF/IFAS ExtensionTermite species recorded in Florida
- 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…
- Asian subterranean termite (Coptotermes gestroi) — UF/IFAS: 'is currently restricted to southern Florida'; one of six invasive termite species among 20 established in Florida. FDACS lists it as primarily South Florida only.
- West Indian drywood termite (Cryptotermes brevis) — UF/IFAS lists it among the major structural pest species accounting for roughly 65% of Florida termite reports. Clemson records the 'powderpost' drywood termite in seven South C…
When termites are busiest around St. Petersburg
Formosan swarms early April–late June shortly after sunset, peaking in May (UF/IFAS); FDACS gives evenings April–July. Asian subterranean swarms have been recorded in March. Drywood swarmers fly in daytime in summer and fall.
UF/IFAS: Formosan is 'distributed throughout the state, primarily in urban areas with high population density'; Asian subterranean 'is currently restricted to southern Florida'. FDACS recommends annual inspections by licensed pest control professionals and notes termites 'can use cracks the thickness of a credit card to invade'.
Rules that apply in Florida
Sources: Termite Species Distribution in Florida and UF Termite Identification Services (IN1360); UF/IFAS 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
- Caulk gaps around plumbing and utility penetrations.
- Remove tree stumps and buried wood near the house.
- Keep six inches between soil and siding or wood.
- Grade soil to slope away from the foundation.
- Keep the termite renewal contract current after treatment.
An inspection starts outside, with a flashlight along the foundation line where mud tubes show up first.Did you know?
For St. Petersburg homes, some tropical termites grow fungus gardens inside the nest and eat the harvest.
For St. Petersburg homes, soldier termites can't feed themselves, so the workers feed them mouth to mouth.
Questions people ask
How do I choose a termite company?
Make sure they're licensed in Florida. Ask which termites they found and what product they'll use. Ask what the warranty covers. Compare the proposals, not just the totals.
What does a WDI report include?
It lists any termites or damage found. It also notes conditions that invite them, like wood touching soil. It only covers areas the inspector could reach.
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.
Can termites damage a house on a concrete slab?
Yes. They come up through expansion joints, plumbing gaps and small cracks. Most homes around St. Petersburg sit on slabs, so inspectors check those spots first.
What time of year do termites swarm?
In St.
Can I pay for termite monitoring without a full treatment?
For St. Petersburg homes, termites are best caught early through inspection, because the damage is hidden inside wood until it is far along. For St. Petersburg 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 Florida?
Around St. Petersburg, the usual culprit is the eastern 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