Termite Treatment Cost Calculator

In 2026, termite treatment costs $500-$2,500 for most homes, with the national average around $600-$1,500. Localized spot treatments can be as low as $300-$500, while whole-home approaches cost more: liquid barrier treatments run $1,000-$2,500, bait station systems $1,200-$3,000 (including the first year of monitoring), and whole-home fumigation or heat treatment $1,200-$4,000+ depending on home size. The total depends on the treatment method, your home's size, how severe the infestation is, and the termite species. Many companies also sell annual warranty/bond renewals to keep protection active.

The main methods are: (1) Liquid soil barrier — a termiticide (like Termidor) applied in a trench around the foundation, creating a treated zone that kills subterranean termites; long-lasting and very common. (2) Bait stations — in-ground stations (like Sentricon) placed around the property that termites feed on and carry back to the colony, eliminating it over time; lower-impact and good for ongoing monitoring. (3) Tent fumigation — the whole home is tented and filled with gas to penetrate wood and kill drywood termites throughout the structure. (4) Heat treatment — the home is heated to a lethal temperature, a chemical-free alternative to fumigation for drywood termites. (5) Spot treatment — localized application for small, accessible, contained infestations.

Subterranean termites live in the soil and build mud tubes to reach wood above ground; they're the most common and destructive type in the U.S. and are treated with liquid soil barriers or bait stations targeting the ground colony. Drywood termites live entirely inside the wood they eat (no soil contact), often in attics, framing, and furniture; because they're spread throughout the structure, they typically require whole-home fumigation or heat treatment rather than soil treatment. Formosan termites are an aggressive subterranean species with enormous colonies that cause rapid damage and are the most expensive to control. Identifying the species correctly is essential to choosing the right (and not wasting money on the wrong) treatment.

Common signs of termites: mud tubes (pencil-width tunnels) on foundation walls or in crawlspaces (subterranean); discarded wings near windows and doors after a swarm; small piles of pellet-like droppings called frass (drywood); hollow-sounding or blistered wood; tight-fitting or sticking doors and windows; and visible swarmers (winged termites) in spring. Because damage often hides inside walls and framing, many infestations are found only during a professional inspection or a real-estate transaction. If you spot any of these signs, get a professional inspection promptly — termites cause billions in damage annually and the longer you wait, the more costly the repairs.

Both are effective against subterranean termites; the best choice depends on your situation. Liquid barrier (e.g., Termidor) creates an immediate treated zone around the home, kills termites quickly, and lasts many years — but requires trenching/drilling around the foundation and uses more chemical. Bait stations (e.g., Sentricon) are lower-impact, require no trenching, are good for ongoing monitoring and prevention, and eliminate the whole colony over weeks to months — but work more slowly and rely on termites finding the bait. Liquid is often preferred for active, urgent infestations; bait is favored for prevention, environmentally-sensitive sites, or homes where trenching is impractical. Many providers offer either or a combination.

Yes — tent fumigation requires all people, pets, and plants to vacate the home, typically for 2-3 days (24-72 hours). The home is sealed under a tent, fumigant gas is introduced, then the home is aerated and cleared by the company before a certified safe re-entry. You'll need to remove or double-bag food, medicine, and other consumables per the company's instructions. Heat treatment is faster (usually completed in a single day and you can return the same day once it cools), which is one reason some homeowners prefer it as a fumigation alternative — though heat may not penetrate as uniformly in very large or complex structures.

A liquid barrier treatment (like Termidor) typically lasts 5-10 years before the treated zone needs renewal. Bait station systems work continuously as long as they're maintained and monitored (usually via an annual service contract). Fumigation and heat kill the termites present at the time of treatment but provide no lasting residual protection — so a preventive plan is recommended afterward to stop re-infestation. Most companies offer an annual warranty or termite bond ($150-$400/year) that includes periodic inspections and free re-treatment if termites return. Given how destructive and expensive termite damage is, ongoing protection is widely recommended, especially in high-risk regions.

Generally no. Standard homeowners insurance excludes termite damage and treatment because termites are considered a preventable maintenance issue, not a sudden accidental event. This makes proactive prevention and early detection important, since you'll typically bear the full cost of both treatment and any structural repairs. In rare cases, if termite damage leads to a sudden covered event (like a collapse) there may be limited coverage, but this is uncommon and often disputed. The best financial protection is regular inspections and a termite bond/warranty from a pest-control company, which covers re-treatment (and sometimes damage repair) if termites are found while the bond is active.