Just Found Termites? How Fast The Damage Actually Happens

Slowly. Extension entomologists are consistent about it: structural damage from subterranean termites builds over years, not weeks, and the day or the week you spend getting a straight answer costs you very little. What the slowness does not mean is that it will stop. By the time there is something to see, the colony has usually been working for a while.

The discovery tends to look the same. Somebody moves a box in the basement and finds a pencil width line of packed dirt running up the block wall, or a piece of trim gives under a thumb. In an older house in North Canton or Massillon, with a block foundation and part of the basement finished, that lands hard, and the next thought is always the same one. How much of this is already gone?

How Long Does It Take Termites To Do Real Damage?

Longer than the panic suggests. Michigan State University Extension writes that termites can cause extensive and serious damage to wooden structures, and that this damage occurs very slowly. Kansas State Research and Extension says it the same way in its homeowner publication Termites: Structural Pests, which states that the structural damage caused by termites occurs slowly, and tells readers there is no need to be frightened on finding them, because these insects work slowly and a house will not be ruined or collapse overnight.

The biology behind that is worth a sentence. Penn State Extension notes that the workers are the ones that feed on wood and cause the damage, and that they are seldom visible unless a termite tube or a piece of infested wood is broken open. Individual workers are believed to survive up to five years. So a colony is not a burst of activity. It is a slow one that never takes a year off, which is why the honest answer to how fast is rarely dramatic.

What does change is size. Virginia Cooperative Extension, in its publication on subterranean termites (444-502), reports that mature colonies six to seven years old of Reticulitermes flavipes in Virginia have been estimated to contain more than 60,000 workers. A colony that big next to a foundation did not arrive that way. It got there over years of foraging nobody saw.

Finding Them Today Does Not Mean They Arrived Today

Almost every sign a homeowner can find is late evidence. Ohio State University Extension's plant pest diagnostic clinic described a case of swarmers collected in a Dayton basement and read it as an established colony that had built above ground tunnels inside the structure in order to release that swarm, rather than insects that had wandered in from somewhere else. The swarm was the announcement, not the beginning.

Timing works against you here too. Penn State Extension puts swarm season in its state between February and June, so a discovery in Stark or Summit County in late October is usually mud tubes, a board that sounds hollow, or wood that crumbles at a screwdriver, rather than a cloud of winged insects on a window sill. We went through what each of those signs is worth in how to spot termite damage, and the question of whether you are even looking at insect damage in termite damage or wood rot.

What Speeds It Up And What Slows It Down

Two houses on the same street do not run on the same clock. These are the variables the published work actually measures, rather than the ones people guess at.

The moisture line is the one worth acting on, because it is the one you control. Which pests keep going through a Northeast Ohio winter, and which genuinely slow down, is laid out in what is still active in an Ohio house in winter.

So Is There Time To Get A Second Opinion?

There is, and the extension literature says so in writing rather than leaving you to guess. The University of Kentucky's homeowner guide, Termite Control: Answers for Homeowners, states that the amount of damage caused by taking an additional day, week or month to make an informed decision generally is inconsequential. Ohio State University Extension's termite control fact sheet allows that a few weeks or months may be needed to decide on a course of treatment, which typically means employing a professional firm.

Which turns the pressure itself into information. Kansas State tells homeowners never to permit themselves to be rushed into purchasing termite control services, and Kentucky warns about firms that push for an immediate signature using specials or scare tactics. If the biology gives you weeks and somebody is giving you an hour, the hurry is theirs, not the termites. What to ask instead is in how to choose a pest control company.

When The Clock Actually Matters

Slow is not the same as optional, and a few situations do run on somebody else's calendar:

• A sale, a refinance or a VA loan. The deadline belongs to the lender, not the colony. The form behind it is covered in the NPMA-33 report, and the inspection itself is a real estate termite inspection.
• An infestation confirmed as active. Mississippi State University Extension is direct about this: if a building has an active infestation, or there is reason to believe something has compromised an earlier treatment, it is time to treat again.
• The method you choose changes the timeline. Kentucky's bait guide notes that baits work gradually and that some feeding and damage may occur before the bait takes effect, and that a homeowner with a severe infestation or a transaction in progress may prefer a liquid treatment instead. Both routes are explained in how termite bait stations work and on our Sentricon page.
• Protection that lapsed years ago. If a house was treated once and nothing has been checked since, the assumption that it is still covered is the thing to test. We took that apart in how long termite treatment lasts.

What An Inspection Can Settle, And What It Cannot

An inspection is the step that converts a guess into a record. North Carolina's structural pest control consumer guidance calls an inspection by a qualified technician the first and most important step in protecting a property against termites, and it is equally plain about the limits: a technician cannot inspect behind walls and paneling, into wall voids, or under floor coverings.

So the question people most want answered, how long has this been going on, often has no exact answer. What a written report does instead is fix what is visible today, which makes the next look a comparison rather than a fresh guess. Kansas State is blunt about who should be doing the work once an infestation is established: it is a job for a professional, and the average homeowner seldom has the training, experience or equipment for proper treatment. Which is the argument for letting a termite control decision start with an inspection rather than with a product, and for houses around North Canton and the rest of Stark County being looked at on a schedule instead of after a swarm.

If you found something this week, the useful next move is to leave it where it is and have somebody read it. Inspection fee waived with treatment. Book it through our request an inspection page or call 330-494-6199, and you will get a straight account of what is there and how far along it is.