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Termite Inspection and Treatment in Columbus, OH

A written inspection of wood on soil, the foundation and the crawl space, followed by a treatment plan only where the finding supports one.

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Termite Inspection

Termite Inspection and Treatment: what it covers

Quick answer

Termite inspection in Columbus checks wood in contact with soil, the foundation and the crawl space for eastern subterranean termites. OSU’s clinic confirmed one from Dayton in April 2024, and it cites a risk rating of moderate to heavy for Ohio. The inspection decides whether a treatment is needed, and the treatment follows the finding.

Termite Inspection and Treatment illustration for Columbus, OH, with a red barn in the background

Termites in Ohio are a risk that does not announce itself. The Ohio State University Plant Pest Diagnostic Clinic identified an eastern subterranean termite sent from Dayton in April 2024, based on body colour, swarm time and location. The clinic also cites a rating of Ohio’s subterranean termite risk as moderate to heavy, from a 1994 study. Those two facts are the reason an inspection is worth booking before the damage is visible.

The inspector’s first questions are about the house: the foundation type, the crawl space or basement, past treatments and any repairs. The inspector then works from the outside in, because grade, drainage and the soil line often show the story before anyone opens a wall. The report records what was seen, what could not be reached and what is recommended.

Service area
Columbus & Franklin County
Availability
Phone answered 24/7
Warning signs

Signs you need termite inspection and treatment

Do not dig in or disturb a mud tube, and do not apply a product to a termite trail on your own. Keep children and pets away from any soil treatment area until the applicator says it is safe. Wear gloves and a dust mask in a crawl space with insulation or old dust, and do not cut or drill a sill without the inspector’s advice.

  • Mud tubes running up a foundation wall or a pier from the soil to a piece of wood
  • Wood that sounds hollow when tapped, or crumbles along the grain near the soil line
  • Pellets or fine sawdust under a window sill or on a basement floor near a wall
  • Swarmers or shed wings on a windowsill, which OSU says can mean a colony is inside the building
  • Doors and windows that stick for no clear reason, or a floor that gives underfoot
  • Soil piled against a wood sill, a stair stringer or a fence attached to the house
Our process

How our termite inspection and treatment visit works

  1. Read the house before the wall

    The inspector asks about the foundation, past treatments and repairs. The grade and drainage are checked outside, because standing water against the foundation is the condition that favours moisture and decay.

  2. Check wood in contact with soil

    The sill, stair stringers, deck posts, fence attachments and any siding that sits low on the wall are examined, and every soil line is recorded.

  3. Look in the crawl space or basement

    Joists, the sill plate, the piers and the insulation are checked for mud tubes, damage and moisture. Moisture readings are taken where wood looks suspect and are written in the report.

  4. Examine cracks and penetrations

    Cracks in the foundation and gaps around plumbing and cable entries are checked and recorded as open or closed, because they are the routes into the wall.

  5. Write the report and the options

    The report lists what was checked, what was seen, what was not seen and what is recommended. Where no activity is found, it says so and states the limits of the check.

What did OSU confirm about termites in Ohio?

OSU’s clinic identified an eastern subterranean termite sent from Dayton in April 2024, based on body colour, swarm time and location. The same clinic page cites a risk rating of moderate to heavy for Ohio’s subterranean termites, drawn from a 1994 study.

The sample is a single identification from one submitted specimen, and it does not state how many colonies exist in Ohio. What it does establish is that the eastern subterranean species has been identified in the state recently, and that the clinic considers the risk material enough to publish. A homeowner should read it as a reason to inspect, not as a claim about any particular street or house.

The clinic also says that swarming insects indoors mean colonies are inside the building. That is the most practical point for a Columbus homeowner: a swarm in the house is not a question to wait on, and the inspection starts at once.

What signs should a homeowner know, and what do they mean?

Mud tubes, hollow or crumbling wood, pellets or frass, and swarmers or their wings are the signs an inspector looks for. Each is recorded with its location, because a single tube on a pier means something different from wood damage on a joist.

Mud tubes are built by subterranean termites to move between soil and wood while staying out of the open air. The inspector follows a tube to its source and checks the wood it reaches. A tube that leads to nothing may be old, and the report says so.

Hollow or crumbling wood needs a careful probe, because probing can damage sound wood as well as test it. Swarmers and wings on a windowsill point to an active colony nearby, and the report records where they were found and how many.

What does the crawl space or basement check involve?

The check looks at the sill plate, the joists, the piers and any standing moisture. The aim is to find where wood meets soil or concrete with no barrier, and where water or humidity favours termites and decay.

The sill plate sits on top of the foundation wall, and it is the most important piece to examine. Where it touches masonry with no barrier, moisture and termites can both get in. The inspector checks each section, notes any damage or staining and looks for a tube on the foundation face.

Moisture is the condition that keeps coming back in the prevention advice. A damp crawl space, a downspout that empties at the foundation or a grade that slopes toward the house all add water where wood is. The inspector records those as conditions, separate from any finding of termite damage, and suggests what would change them.

What does a treatment plan contain, and when is one recommended?

A treatment is recommended only where the inspection finds active termites or damage that needs a response. The plan names the method, the product class, the placement, the re-entry rule and the follow-up.

The plan says what was found, where, and why the chosen method suits that finding. A soil treatment, a bait system or a targeted repair each has a different placement and a different follow-up, and the report explains the difference in plain words.

Where the finding is old or the activity inactive, the plan may recommend no treatment and a check on a set date. That decision is a legitimate outcome, and it is written down with its reasons so the homeowner can see why nothing was applied.

Who should carry out the treatment?

Pesticide application for pay in Ohio is licensed. The Ohio Department of Agriculture is the agency OSU names for licensing and testing, and a commercial applicator must pass a core exam and a category exam. Ask for the licence details when you book.

The OSU listing places structural work, including termite and wood-destroying insect control, in a separate category from general pest control. A business doing termite work should be able to say which category its applicator holds and show the licence.

The licence details are given on request by phone and are not printed on this site, for the privacy of the technician. The business and the applicator are the parties who answer for the work, and the caller can check their licence with the state before any product is applied.

Options

Types and options for termite inspection and treatment

Visual inspection

A check of the accessible parts of the building with no opening of walls. It covers the common signs but cannot see inside the structure.

Inspection with moisture readings

The visual check plus meter readings at suspect points. It suits a damp crawl space or a soil line that looks wrong.

Pre-treatment inspection

A fuller check to decide whether a treatment is warranted and where it should go. The report is the basis for any plan that follows.

Franklin County

Why termite inspection and treatment is different in Central Ohio

The OSU sample came from Dayton, not from Columbus. The page does not say that a termite was found in any particular Columbus neighbourhood, and the inspection is what establishes the finding for a given building.

Older Columbus neighbourhoods with stone or brick foundations and basement walls need a closer check at the sill, because the masonry and the wood meet at points that are hard to read.

A house with a wood deck or steps resting on soil is common across Franklin County, and those contacts are the first things the inspector marks on the outside walk.

Skip the guesswork. Call for a straight answer.

Tell us what's happening and we'll tell you honestly whether it's a quick fix, and what termite inspection and treatment should cost.

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Where we work

Termite Inspection and Treatment across Franklin County

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Related

Termite Swarm Response

A same-week visit for swarmers indoors or on a sill, with the wings, the entry and the colony’s likely location checked before any treatment.

Wood-Destroying Insect Inspection

A structural inspection for termites and other wood-destroying insects, reported by location, with the category of work named in plain words.

Commercial Pest Control

Scheduled inspection and treatment for businesses, with written records and a licensed applicator who answers for the work.

Applicator Licence Check

What the licence covers, what to ask for at booking and at the door, and where to check the number with the state.

Guides

Read before you book

FAQ

Termite Inspection and Treatment FAQs

Does an OSU sample mean termites are in my house?

No. The 2024 sample came from Dayton and identified one species from one specimen. Whether your house has termites is answered by an inspection of the building.

What does a swarm indoors mean?

According to the OSU clinic, swarming insects indoors mean colonies are inside the building. A swarm in the house is a reason to book an inspection promptly.

Should I treat before the inspection?

No. The inspection decides whether a treatment is needed and where it should go. A treatment before the inspection can be wasted and can make the next reading harder.

Who is allowed to treat termites?

A licensed applicator, under the Ohio Department of Agriculture’s rules. Ask for the licence details and check them with the state.

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