Pest Control in Columbus, Ohio

Where the City of Columbus stops helping

Columbus Public Health runs a Vector Control Program covering the City of Columbus and Worthington. It is a real, funded service and most residents do not know its boundaries. Knowing them saves you a wasted week.

The city will handle rats. Report through 311 — the request type is listed as Rat Complaint (Outside) — and a team comes out to assess the property. If active signs are present and you want treatment, you sign a Release of Liability form and the property enters a rotation for one recommended treatment each month.

Now the limits, all of them published by the city itself:

• The rat programme is outdoor only. The city’s own page says that if you have rats inside your home or garage, you must contact your property owner or a licensed exterminator.
• It will not treat commercial properties or apartment buildings.
• It will decline your property if there is dog waste, bird seed, an overgrown yard, or trash and debris present. Those are listed as requirements of the programme, not suggestions.
• It does not inspect or treat mice, bees, bed bugs, fleas, spiders or ants at all. That is the city’s published list of nuisance pests outside the programme.

Read that last point twice, because it catches people out constantly. A Columbus household with a mouse problem gets nothing from the city. Mice are not rats, and the distinction is jurisdictional as well as biological. The same is true of every bed bug case in the city.

Columbus Public Health’s Vector Control line is 614-645-6671, and 311 is 614-645-3111. The vector office keeps limited hours — Monday, Tuesday, Thursday and Friday 8am to 4pm, and Wednesday from 10am.

Rats: what the city’s own field guidance tells you

The Norway rat is the most common rat in Ohio, and the city publishes four behavioural facts about it that are worth more than most of what you will read online.

They burrow underground along walls. That is where to look — foundation edges, under decking, behind detached garages, along fence lines — not in the middle of a lawn.

Their home range is about 150 feet. This is the single most useful number in urban rodent work. A rat you see in your yard lives within roughly half a city block. The harbourage is yours or your immediate neighbour’s, which is why rat problems in dense Columbus neighbourhoods are genuinely a block-level issue and why one treated property surrounded by nine untreated ones rarely stays clear.

They have poor eyesight and they travel the same path repeatedly. That is why rub marks and worn runs form along walls, and why placement on an established run matters far more than the number of devices deployed.

The signs the city looks for on an assessment are burrows, runs, droppings, gnawing, hairs and tracks. Columbus placed 21st on Orkin’s 2025 list of the fifty rattiest United States cities, four places better than the year before. Treat that as what it is — a pest company’s treatment-volume ranking, not a census — but it is consistent with what the city’s own programme workload suggests.

Bed bugs: Columbus has a genuine, measurable problem

Columbus ranked eighth on Orkin’s 2026 bed bug cities list, holding the position it held the year before. Ohio placed six metros in that top fifty, more than any other state. Again, the honest framing matters: Orkin builds that list from the cities where it performed the most residential and commercial bed bug treatments between May 2025 and May 2026. It measures treatment volume, not prevalence. But six Ohio metros in a national top fifty is not noise, and Columbus has been near the top of that list for over a decade — it sat at ninth in 2022.

Columbus took the problem seriously enough to build institutions around it. The Central Ohio Bed Bug Task Force is a real local body; Susan Jones, a professor of entomology at Ohio State, is a founding member, and the group has run an annual summit bringing research and practical guidance to landlords, tenants and agencies.

Ohio State University Extension’s guidance for anyone hiring on bed bugs is practical and worth using as a script. Ask how long the company has been treating bed bugs specifically. Ask to see its certificate of insurance. Ask for references. Ask what the service agreement actually covers, and ask how to prepare — because clutter directly hinders thorough treatment, and preparation is not an optional courtesy. Extension is blunt that bed bugs are difficult enough to eliminate that this is professional work.

Which licence the job actually requires

Ohio does not issue one generic pest control licence. The Ohio Department of Agriculture issues a commercial applicator licence with categories attached, and the categories are not interchangeable:

• 10a — general pest control
• 10b — termite control
• 10c — fumigation
• 10d — mosquito, house fly and other vector control

A company holding 10a is not thereby licensed for termite work. If you are calling about termites, 10b is the category that matters, and asking which categories a licence carries is an ordinary, reasonable question.

One more rule that catches Columbus renters and property managers. ODA requires a certified applicator for in-house pest control of apartment buildings with more than four units, as well as food-handling establishments, schools and day care centres. A maintenance worker at a larger Columbus apartment complex cannot lawfully spray the units as a general handyman task. If you rent in a building of that size and someone from the office is spraying, that person needs a licence.

Neighbourhood and building age across the city

Columbus is not one building stock, and the difference shows up in pest work. German Village, platted in 1814 and built out mainly between 1840 and 1914, is the clearest example: brick Italianate and Queen Anne houses and modest one-and-a-half storey cottages built from local clay brick, with stone lintels, small lots, and brick streets and alleys. More than 1,600 buildings there have been restored since 1960, and it is the largest privately funded historic district on the National Register of Historic Places. Century-old masonry, generations of patched utility penetrations and a dense alley grid make for a very different exclusion job than a subdivision built in 1998.

Worth knowing too: the brown marmorated stink bug’s Ohio record starts here. It was first documented in the state in December 2007, in Franklin County.

Sewers, basements and Blueprint Columbus

Since 2015, under a consent order from the Ohio EPA, the city has run Blueprint Columbus to eliminate sanitary sewer overflows. The city identified stormwater infiltrating private laterals as the primary cause of overflows and basement backups, and the programme works on four fronts: lining sewers and private laterals, redirecting roof drains, installing sump pumps, and green infrastructure. It spans roughly 18,000 acres, more than 50,000 homes and 21 neighbourhoods.

Two implications are worth raising with whoever inspects your property, framed as questions rather than conclusions. A cracked or failed private lateral is a textbook route for Norway rats between a sewer and a basement, and lining one closes that route. And a newly installed sump crock is a new, permanently damp void in a basement. Neither point is a claim the city has made; both are worth an inspector’s attention if your street has been through the programme.