Termite Treatment vs. Exterminator: Which Do You Need?

Comparing specialized termite treatment and general extermination — costs, methods, why standard pest control doesn't cover termites, and how to choose the right service for your home.

Homeowners often assume their quarterly pest control plan covers every crawling threat, including termites. It doesn't. Termites are a fundamentally different category of pest that requires specialized detection equipment, unique chemical treatments, and ongoing monitoring systems that general exterminators typically don't provide. Understanding this distinction can save you tens of thousands of dollars in structural damage. Termite treatment is a specialized service with two primary methods. Liquid barrier treatment ($500–$2,500 depending on home size and linear footage of foundation) involves trenching around the foundation perimeter and injecting termiticide — typically fipronil (Termidor) or imidacloprid — into the soil to create a continuous chemical barrier that kills termites on contact and through colony transfer. The treatment requires drilling through concrete slabs, porches, and garage floors where they abut the foundation. A liquid barrier lasts 5–10 years and provides immediate knockdown of active infestations. Bait station systems ($1,200–$3,500 for installation plus $200–$400 per year for monitoring) use strategically placed in-ground stations around the perimeter that contain cellulose laced with slow-acting insect growth regulators (like noviflumuron or hexaflumuron). Foraging termites find the bait, carry it back to the colony, and the growth regulator prevents molting — eventually collapsing the entire colony over 3–12 months. Bait systems require quarterly professional monitoring and station replenishment. A third option, fumigation ($1,200–$2,500 for the tenting process plus $1–$4 per square foot of living space), is reserved for drywood termite infestations that have spread throughout the structure. The house is sealed with tarps and filled with sulfuryl fluoride gas for 24–72 hours — you must vacate with all people, pets, plants, and food items. A general exterminator, by contrast, handles the common household pests: cockroaches, ants, spiders, wasps, fleas, and mice. A single visit costs $150–$300, and most homeowners sign up for quarterly service plans at $100–$300 per visit ($400–$1,200 per year). The exterminator applies residual sprays along baseboards, treats entry points with granular bait, sets rodent traps, and addresses any active infestations found during the visit. The chemicals used — pyrethroids for insects, rodenticide for mice — are broad-spectrum surface treatments designed for fast knockdown of visible pests. These products have zero effect on subterranean termites, which live in soil and access your home through hidden mud tubes in foundation cracks, expansion joints, and behind walls. Even a thorough quarterly pest treatment won't reach them because the chemicals don't penetrate soil and aren't designed for colony elimination. The critical diagnostic difference: if you see mud tubes on foundation walls, hollow-sounding wood, discarded translucent wings near windows in spring, or frass (tiny wood-colored pellets) beneath wooden structures, you need a termite specialist — not your regular exterminator. Most states require a separate Wood-Destroying Organism (WDO) inspection license for termite work, and many general pest control companies subcontract termite jobs to specialists. A WDO inspection costs $75–$150 and should be performed annually in termite-prone regions (Southeast, Gulf Coast, Pacific Coast, Hawaii) and before any real estate transaction. Many termite treatment companies offer annual warranties ($150–$350 per year) that guarantee re-treatment and structural damage repair if termites return — a protection no general pest control plan includes.