Pest Control in Delaware, Ohio
If a sale is involved, the termite inspection is a regulated act requiring its own Ohio licence — even when nobody plans to treat anything. Exterminator Dispatch connects Delaware households and businesses with a licensed local exterminator — no cost to be matched, no obligation.
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Exterminator Dispatch is a referral service, not a pest control company. It holds no Ohio licence, employs no applicators, and performs no treatments. It routes a Delaware request to an independently owned company licensed by the Ohio Department of Agriculture. This page is about the wood-destroying insect inspection that shows up in property transactions — what licence it requires, what form it produces, what it does and does not cover, and who your county health district is.
The inspection is a licensed act in its own right
Most people assume a termite inspection is just a service a pest company offers. In Ohio it is a regulated activity with its own credential, and the detail that surprises buyers and sellers is this: a wood-destroying insect diagnostic inspection for a real estate transaction requires a licence even if no treatment is planned. Inspecting is the regulated act. Nothing has to be sprayed for the rules to apply.
The credential is Category 12, Wood-Destroying Insect Diagnostic Inspection, and it sits on top of an Ohio commercial applicator licence rather than replacing it. An inspector must pass the core exam covering laws, regulations and safety, plus the Category 12 exam covering inspections, and must attend a five-hour mandatory training before the licence is issued. That training is run twice a year, in spring and autumn, by the Ohio Department of Agriculture. Keeping the licence current requires five hours of recertification credit every three years, including an hour of core.
So the useful question when arranging a transaction inspection in Delaware is not “do you do termite inspections?” but “does the person attending hold Category 12?”
What the report actually is
Category 12 covers examination of a structure involved in a contemplated real estate transaction for the current or past existence of wood-destroying insects. Past matters as much as present: evidence of an old, treated infestation is a finding, and it belongs in the report.
Commercial applicators conducting these inspections must make a complete record of the findings of each inspection on form NPMA-33, the standard report form produced by the National Pest Management Association. It is the document used in most Ohio transactions, particularly those involving conventional or government-backed mortgage financing. If you are buying, that form is what you should be reading, and reading properly — including any obstructions or inaccessible areas the inspector has noted, because those are the parts of the structure nobody actually examined.
An inspection is a snapshot of visible and accessible evidence on one day. It is not a warranty, and a report with heavy access limitations is a weaker document than one without them.
What the inspector is looking for
The species that matters in central Ohio is the eastern subterranean termite. The evidence is specific and you can follow along.
Shelter tubes — mud tubes — are built from soil, faeces, saliva and cellulose because workers dry out in open air, and they appear on foundation walls and piers close to soil. Damaged wood shows galleries running with the grain, containing soil and faecal spotting, with the outer surface often left intact, so blistered or lumpy paint deserves a press. Discarded wings near windows and light sources point to a swarm, which in Ohio happens in spring and early summer.
Where evidence is absent but suspected, a moisture meter is a standard inspection tool, because areas of activity show elevated moisture from the water termites transport. A thorough inspector uses one; it is reasonable to ask whether yours did.
Ohio’s subterranean termite infestation risk has been rated moderate to heavy in federal work on the subject. This is not a region where a clean report is a foregone conclusion.
Delaware’s building stock is genuinely old, and genuinely new
The city was laid out in 1808, after Moses Byxbe settled the east bank of the river in 1804, and it became a health resort on the strength of a nearby sulfur spring. Ohio Wesleyan University was founded here in 1842 and built around the town’s Mansion House, now Elliott Hall. The Sandusky Street Historic District was placed on the National Register of Historic Places in 1982, and the City Council established a Downtown Historic District in the 1990s with architectural standards to protect the historic downtown buildings.
At the same time Delaware County has repeatedly been the fastest-growing county in Ohio, and projections have its population rising by roughly 85 per cent between 2020 and 2050 — on the order of 180,000 additional residents.
For transaction inspections that combination is the whole story. A downtown property near Sandusky Street may be a century and a half old, with a stone or brick foundation, a crawl space, added porches, and generations of buried wood. A house in a new development a few miles out may be six years old on a slab. Both need the same licence and the same form; they do not need the same amount of the inspector’s time, and a fixed-length inspection applied to the former should raise an eyebrow.
Your county health district
For anything in the public-health lane — standing water complaints, mosquito surveillance, spray notification — Delaware addresses fall to the Delaware Public Health District, at 470 S. Sandusky Street, Delaware, reachable on 740-368-1700. It runs larval and adult mosquito surveillance and control alongside disease surveillance, and it has carried out fogging in the county following traps testing positive for West Nile virus. That is a separate system from private structural pest work, which is licensed statewide.
ZIP codes served in Delaware
Reducing risk before a sale, or after one
If you are preparing a Delaware property, the conditions inspectors flag are largely water and wood placement. Remove wood-to-soil contact — buried form boards, old steps, timber stacked against the house. Keep the mulch level at least six inches below the foundation and no deeper than about two inches, which also leaves a visible strip to inspect for tubes. Seal foundation cracks where practical. Fix the drainage: gutters clear, downspouts discharging away from the structure, soil graded away from the foundation.
None of that eliminates a colony, and it should not be sold to you as though it does. Cultural measures are genuinely useful for preventing future infestation but are not sufficient to remove an active one. That distinction is worth holding onto when reading a proposal.
Exterminator Dispatch routes the call and nothing further. The licensed company that takes it owns the inspection, the report and its own pricing.
Three Things to Check on a Transaction Inspection
All three are visible on the paperwork.
Does the inspector hold Category 12?
Ohio requires a specific wood-destroying insect inspection licence for a real estate transaction — including when no treatment is planned.
Read the inaccessible areas
Form NPMA-33 records findings, and it also records obstructions and areas the inspector could not reach. Those are the parts of the house nobody examined.
Past activity is a finding too
Category 12 covers current or past existence of wood-destroying insects. Evidence of an old infestation belongs on the report, treated or not.
Pest Services Available in Delaware
Licensed local operators covering Delaware County handle these common requests.
Termite Control
Inspection and treatment for eastern subterranean termite activity.
Rodent Control
House mouse and Norway rat exclusion and trapping.
Ant Control
Colony-targeted treatment for carpenter, odorous house and pavement ants.
Cockroach Control
Inspection and treatment for German and American cockroaches.
Mosquito Control
Container source reduction and yard treatment for seasonal mosquito pressure.
Bed Bug Treatment
Inspection and treatment for bed bug activity in homes and rental units.
Nearby Areas We Also Cover
Exterminator Dispatch also routes requests across the wider metro.
Delaware Pest Control FAQ
Questions Delaware callers ask most often.
Is Exterminator Dispatch a Delaware pest control company?
No. It is a nationwide referral line. It holds no Ohio licence, employs no applicators and performs no treatments. For a Delaware address it routes the request to an independently owned company licensed by the Ohio Department of Agriculture.
Does a termite inspection need a licence if nothing is being treated?
Yes. In Ohio a wood-destroying insect diagnostic inspection for a real estate transaction requires a licence even when no treatment is planned. The inspection itself is the regulated activity.
Who handles mosquito complaints in Delaware?
The Delaware Public Health District, at 470 S. Sandusky Street in Delaware, on 740-368-1700. It runs larval and adult mosquito surveillance and control and has fogged areas of the county after traps tested positive for West Nile virus.
What licence should the inspector hold?
Category 12, Wood-Destroying Insect Diagnostic Inspection, held alongside an Ohio commercial applicator licence. It requires passing the core and Category 12 exams and attending a five-hour mandatory training, with five hours of recertification credit every three years.
What form should I receive?
Form NPMA-33. Ohio requires commercial applicators conducting these inspections to record the complete findings of each inspection on it, and it is the standard report used in most Ohio transactions, including those with conventional or government-backed financing.
Does the report cover old, already-treated damage?
It should. Category 12 covers the current or past existence of wood-destroying insects in the structure, so evidence of previous activity is a finding regardless of whether it was treated.
What does a clean report not tell me?
What the inspector could not see. The report records obstructions and inaccessible areas, and an inspection is a snapshot of visible and accessible evidence on one day rather than a warranty. Read the limitations section as carefully as the findings.
Can I prevent termites before listing?
You can reduce the conditions. Remove wood-to-soil contact, keep mulch at least six inches below the foundation and under about two inches deep, seal foundation cracks and fix drainage. But cultural measures prevent future infestation rather than removing an active one, and should not be presented as a treatment.
Get Matched With a Licensed Delaware Exterminator
No cost to be matched, no obligation. The Ohio-licensed company serving Delaware handles the inspection, the report and its own pricing.