Florida termites and pest control: what Canadian owners need to know

Why Florida is not Canada when it comes to pests

The single fact that explains almost everything about Florida pests is the absence of a hard winter. Most of Canada gets a deep annual freeze that kills off or drives dormant the insects and rodents that would otherwise multiply. Florida sits in a subtropical zone where temperatures rarely drop below freezing, so there is no seasonal die-off. Pests stay active, feed, and breed all year, generations overlap, and populations build to levels a newcomer from a cold climate simply has not seen before.

For a building, the consequence is that wood-destroying organisms work without a winter pause. In a warm, humid climate, termites consume wood far faster than they would up north, and an infestation that might creep along over years in a cold Canadian climate can do serious damage in Florida in a single season. This is not a reason to panic, but it is the reason a Florida home needs active, year-round pest management in a way a Canadian property usually does not. The rest of this guide is about turning that reality into a short list of practical decisions.

Termites, the main event

Termites are the costliest pest a Florida owner faces, and Florida has more than twenty termite species, of which a handful do nearly all the damage. They fall into three broad groups. Subterranean termites live in the soil and build mud tubes up into a structure; they are the most common and most destructive group. Drywood termites live entirely inside dry wood, with no soil contact, and spread when infested furniture or lumber is moved. Dampwood termites need wood with high moisture, so they signal a water problem as much as a pest one.

Within the subterranean group, one species stands out: the Formosan subterranean termite, often called the "super-termite". It is invasive, and a single mature colony can contain several million individuals foraging through the soil over a wide area, far larger than a native subterranean colony. Because the workers probe every crack and gap looking for food and moisture, they reach beyond wood into other materials, and Formosan termites are known to chew through soft materials around a structure, including the soft sheathing on wiring, which is why infestations are sometimes linked to electrical faults. UF/IFAS researchers have also documented Formosan termites mating with the related Asian subterranean termite in South Florida, producing vigorous hybrid colonies, and have tracked the Formosan spreading across the state.

Knowing the swarm seasons helps you catch an infestation early, because a swarm is often the first visible sign. Native subterranean termites typically swarm in spring, during the day. Formosan termites swarm later, in late spring and early summer, at night, and are strongly drawn to outdoor lights, so a cloud of winged insects around a porch light on a warm evening is a classic Formosan signal. Drywood termites also swarm in the warm months. The other signs to watch for are pencil-thick mud tubes on a foundation or wall, small piles of frass (drywood termite droppings that look like fine sawdust or coffee grounds), discarded wings near windowsills and lights, and wood that sounds hollow when tapped.

The purchase mechanics: inspection, bond, and what insurance will not cover

When you buy in Florida, termites enter the transaction in three concrete ways, and this is where a Canadian buyer gains the most by understanding the local norms in advance. The first is the WDO inspection, a formal inspection by a licensed operator that checks for wood-destroying organisms. Most lenders financing a purchase require it, and it is effectively standard on government-backed mortgages such as FHA, VA, and HUD loans; many insurers want to see it too. The detailed mechanics of the WDO report sit on the buying side, and we cover them in the guide on the Florida home inspection rather than repeating them here.

The second is the termite bond. A bond is an ongoing contract with a pest-control company that keeps a structure under treatment and monitoring, and depending on the contract it covers re-treatment, and sometimes repair, if termites are found. It is usually structured as an initial fee plus an annual renewal. A bond is transferable to the next owner, and a current, transferable bond is generally seen as a positive disclosure on a listing, because it shows the home has been protected continuously. The third point is the one that surprises Canadians the most: standard homeowners insurance does not cover termite damage. Insurers treat termite damage as a preventable maintenance problem, not a sudden accidental loss, so the bond is effectively the "insurance" for termites, and a serious infestation discovered without one can mean an out-of-pocket repair in the five figures. Florida law also requires a seller to disclose a known history of termites, under the established duty to disclose known material defects.

How termites are actually treated

Treatment depends on which termite you have, which is why the inspection matters. For subterranean termites, the two main approaches are a liquid termiticide barrier, where the soil around and under the structure is treated to create a continuous treated zone the termites cannot cross, and in-ground bait systems, such as Sentricon and similar products, where bait stations placed in the soil are taken back to the colony and eliminate it over time. Many owners keep a bait or barrier system in place permanently as the backbone of their bond.

Drywood termites are different, because they live inside the wood with no soil link, so soil treatment does nothing. A localized infestation can sometimes be spot-treated, but a widespread one is handled with whole-structure tent fumigation, where the building is covered in a tent and fumigated to penetrate all the infested wood at once. On top of termite-specific work, most Florida homes are kept on a general pest-control service, typically quarterly, that manages the ants, roaches, and other pests covered later in this guide. The takeaway for a Canadian owner is that there is no single "pest treatment"; there is a termite strategy and a general-pest strategy, and a good local company will set up both.

The other pests Canadians do not expect

Termites get the headlines, but the pests Canadians actually notice first are the ones they meet day to day. The most famous is the palmetto bug, which is the local name for the large American cockroach. It is big, it can fly or glide, and crucially it lives outdoors by choice, feeding on decaying plant matter; finding one indoors is usually a wanderer, not a sign of a dirty home, which is the opposite of the German cockroach, a smaller species that does infest kitchens and bathrooms indoors and is the one to take seriously inside.

Then there are the biters and the chewers. Fire ants build mounds in lawns and deliver a painful sting whose venom leaves a distinctive white pustule a day later, and they can trigger allergic reactions; they also nest in electrical boxes. No-see-ums, the tiny biting midges, are small enough to pass straight through ordinary window and door screens, which is why a screened lanai does not always keep them out. Mosquitoes are active almost year-round and are a disease vector, not just a nuisance. Roof rats live in attics, soffits, and walls and chew through wires and pipes. Tawny crazy ants swarm in huge numbers and are notorious for getting into and shorting out electrical equipment. Carpenter ants nest in wood, often where there is already moisture damage. None of these is exotic to a Floridian, but all of them are routine in a way they are not in most of Canada.

The snowbird problem: an empty house in the heat

For a snowbird who locks up in April and returns in November, the pest risk is highest during the months the home is empty, because the two things pests love most, warmth and moisture, build up unattended. If the air conditioning is switched off entirely and the house is sealed, indoor humidity climbs, condensation forms, and the result is an open invitation to both pests and mould. An empty, humid house is exactly the environment termites, roaches, and mildew thrive in, and no one is there to notice the early warning signs.

The defenses are simple and worth building into your departure routine. Keep the air conditioning running at a moderate setpoint or run a dedicated dehumidifier so indoor humidity stays controlled, schedule a pest treatment shortly before you leave so protection is fresh through the empty months, and arrange for someone to enter the home periodically to look for mud tubes, droppings, swarmers, or moisture. These steps belong on the same list as your other close-up tasks, which we lay out in the snowbird arrival and departure checklist. Your insurance and your termite bond should also be checked before you go, and the home insurance side is covered in the guide on private versus Citizens home insurance.

Pest reality: Canada compared with Florida

Worked example: the cost of skipping the bond

Suppose a Canadian buys a Florida house and decides to skip a termite bond to save money. A bond on that home might have cost on the order of USD 800 in the first year and around USD 350 a year to renew, so over five years the owner saves roughly USD 2,200. In year four, a Formosan colony is found in a wall that has been quietly damaged through several humid summers while the house sat empty over the off-season.

The owner files an insurance claim and learns the hard truth: the standard policy excludes termite damage, so the insurer pays nothing. The structural repair comes in at a typical five-figure number, say USD 10,000. The five years of "savings" of about USD 2,200 are wiped out several times over, and the owner now also has to start treatment from scratch. The numbers here are illustrative round figures, not a quote, but they show why the bond is treated locally as basic protection rather than an optional extra: it is the only thing standing between the owner and an uninsured repair.

Common mistakes

The errors Canadians make here come from applying cold-climate habits to a subtropical house.

The first is assuming home insurance will cover termite damage; it does not, and discovering that after an infestation is an expensive surprise. The second is skipping or not renewing the termite bond to save a few hundred dollars a year, which removes the only protection that actually pays for termite work. The third is leaving an empty snowbird home sealed with the A/C off, which lets humidity build and invites both pests and mould during the exact months no one is watching. The fourth is ignoring the early signs, the mud tubes, the frass, the swarmers around the porch light, because they look minor; with the Formosan termite, minor signs can mean a very large colony. The fifth is treating a screened lanai as bug-proof, when no-see-ums pass straight through ordinary screening. The sixth is confusing the harmless outdoor palmetto bug with a hygiene problem while overlooking the German cockroach, which is the species that genuinely infests indoors.

Checklist: managing pests as a Canadian owner

1. Get a WDO inspection at purchase; it is standard for FHA, VA, and HUD financing and many insurers, and it sets your baseline.
2. Ask whether the home has a current, transferable termite bond, and get the documentation before closing.
3. Put or keep the home on a termite bond (liquid barrier or bait system) plus a quarterly general pest service.
4. Do not expect home insurance to pay for termite damage; budget the bond as your termite protection.
5. Learn the warning signs: mud tubes, frass, swarmers near lights, hollow-sounding wood, and act on them early.
6. Before leaving for the off-season, keep the A/C or a dehumidifier running and schedule a fresh pest treatment.
7. Arrange for someone to check the empty home periodically for pests, moisture, and mould.
8. Confirm a seller has disclosed any known termite history, which Florida law requires.

FAQ

Does home insurance cover termite damage in Florida?

No. Standard homeowners policies exclude damage caused by termites and other insects, treating it as a preventable maintenance issue. A termite bond, an ongoing treatment and coverage contract with a pest-control company, is what actually protects you against termite costs.

What is a termite bond and is it worth it?

A termite bond is a contract that keeps your home under termite treatment and monitoring and covers re-treatment, and sometimes repair, if termites are found. Given that insurance will not pay and a serious infestation can cost five figures, most Florida owners treat the bond, commonly a few hundred dollars a year, as basic protection rather than an optional extra.

What is the Formosan "super-termite"?

It is an invasive subterranean termite whose colonies can number in the millions, far larger than native colonies, so it damages structures faster and over a wider area. It even reaches soft materials around wiring in its search for food and moisture, and UF/IFAS has tracked it spreading across Florida.

Do I need a pest inspection to get a mortgage?

Usually yes. A WDO inspection is effectively standard on government-backed loans such as FHA, VA, and HUD mortgages, and many insurers want one too. The detailed report is covered in our Florida home inspection guide.

Is a palmetto bug a sign my house is dirty?

No. The palmetto bug is the large American cockroach, which lives outdoors by choice and feeds on decaying plant matter; one indoors is usually a wanderer. The species to watch for inside is the smaller German cockroach, which genuinely infests kitchens and bathrooms.

Why do I still get bitten on my screened lanai?

Because no-see-ums, the tiny biting midges, are small enough to pass through ordinary window and door screens. Standard screening keeps mosquitoes out but not no-see-ums, which is why people are surprised to be bitten in a screened space.

What should I do about pests before I leave for the summer?

Keep the air conditioning at a moderate setting or run a dehumidifier so the house does not get humid, schedule a pest treatment shortly before you go, and have someone check the home periodically. An empty, humid house is the ideal environment for both pests and mould.