How to Spot Termite Damage Before It's a $10,000 Problem

Termite damage has a way of staying invisible for a long time and then, suddenly, being very visible and very expensive. Most homeowners insurance policies don't cover termite damage at all — it's treated as a preventable maintenance issue, not a covered peril, which means the repair bill is entirely on you if it goes too far. The good news is that termites leave signs well before the damage is structural. You just have to know where to look.

Why Termite Damage Gets So Expensive

Termites eat wood from the inside out, following the grain and leaving a thin outer layer intact. That means a support beam, door frame, or piece of subflooring can be seriously compromised while still looking completely normal from the outside. By the time damage is obvious — sagging, visible tunneling, wood that crumbles under light pressure — the colony has usually been active for months or years, and the repair is structural, not cosmetic.

Early Warning Signs Most Homeowners Miss

• Mud shelter tubes — pencil-width tubes of dirt running up a foundation wall, slab edge, or wooden fence post. This is subterranean termites' protected route from soil to wood.
• Wood that sounds hollow or papery when tapped with a screwdriver handle, especially near the base of door frames, baseboards, or exposed structural wood.
• Tiny pinholes or bubbling paint, which can indicate moisture and activity just beneath the painted surface.
• Discarded, translucent wings near windowsills, door thresholds, or light fixtures after a swarm — the swarmers shed their wings within hours of landing.
• Doors or windows that suddenly stick, which can mean the frame has swollen or warped from termite activity and associated moisture.
• Slightly springy or sagging flooring near exterior walls, often one of the later, more serious signs.

Where to Actually Check

“Check around the house” isn't specific enough to actually catch anything. The highest-value spots are the foundation perimeter (especially anywhere soil touches the structure), the crawl space if you have one, attic rafters near roof penetrations, around plumbing penetrations under sinks, and any point where wood directly contacts soil — fence posts, deck supports, and porch columns are common starting points that get overlooked because they're not part of the living space.

What Happens If You Wait

Termite damage doesn't escalate in a straight line — it compounds. A colony left undisturbed keeps growing, keeps recruiting more workers, and keeps expanding its foraging galleries through more of the structure. A repair that would have been a localized wood replacement early on can turn into replacing entire sections of framing, subflooring, or structural supports once the colony has had years to work. The cost difference between “caught early” and “caught late” is almost always the difference between a manageable bill and a genuinely painful one.

The Fix Costs a Lot Less Than the Damage

A termite inspection is free, and it's the only way to know for sure whether what you're looking at is active, old, or nothing at all. If you're buying or selling a home, a wood-destroying insect inspection report (WDIIR) covers this formally as part of the transaction. Either way, catching activity early means a treatment plan, not a construction project. Learn more about our termite control services, or request a free inspection if you've noticed any of the signs above.