How to Choose an Exterminator in Columbus, OH

How do you verify an exterminator in Ohio?

Ohio sets a baseline by rule. The Ohio Department of Agriculture (ODA) requires a Pesticide Business License, at least one licensed commercial applicator and liability insurance to apply pesticides for hire, to solicit that work, or to perform wood-destroying insect inspections for real estate sales.

ODA runs a public lookup, linked in the sources below. Enter the company name and read what comes back. Make this a habit with every company you consider, whoever it is. Then ask for proof of insurance and keep a copy. A business that is slow to provide either is telling you something.

What does the state lookup tell you, and what does it leave out?

It tells you whether the business appears in ODA's records as a licensed pesticide business. It does not rate the work, the manners or the follow-through. Treat it as the entry ticket, then use your questions and the reviews to tell the companies in the lookup apart.

Wood-destroying insect inspections for a home sale carry an extra layer. Ohio State University Extension's Pesticide Safety Education Program says those inspectors hold a Category 12 commercial applicator license. Ask which applicator will do the inspection and confirm that person's license as well.

What should you ask before you hire an exterminator?

A short list of questions sorts the careful companies from the rushed ones. Ask them on the phone before anyone drives out.

1. What pest do you think this is, and what makes you say so?
2. Will you inspect first, and will I get a written record?
3. What does the price include, and what costs extra?
4. How many visits are planned, and what does a follow-up cover?
5. Which products might you use, and where? Do you apply them per label directions and tell me the re-entry time?
6. What do I need to do before you arrive?
7. Do you ask about pets, children and allergies?

The answers should be specific. If you get a sales pitch where an answer should be, keep looking.

What are the red flags when choosing an exterminator?

• Pressure to sign today. A real problem still leaves time to read the terms.
• A price with no inspection for a problem like bed bugs, mice or roaches that depends on how far it has spread.
• Vague terms. If you cannot tell what is covered, how many visits you get or how cancelling works, assume the worst.
• Refusing to name the products or the pest they say they are treating.
• Door-to-door offers that skip the paperwork check.
• Promises that sound absolute. No pest control can promise that a pest will never return. Ask what happens if it does.

One more: a company that will not let you verify it. Anything legitimate welcomes the check.

How should you read reviews and compare quotes?

Read reviews for patterns rather than stars. Look for mentions of honesty, showing up when promised, explaining the price and coming back when the pest did. A cluster of the same complaint matters more than one angry post.

Fill in each column as you call. If a box stays empty, ask again. Our post on pest control cost in Columbus explains how to compare totals fairly, and local vs national pest control covers company size.

How much do a star rating and a review count tell you?

A rating means more with a count beside it. A high score from a handful of reviews tells you less than a similar score from dozens. Read the three or four most recent reviews, look for specifics such as the pest, the visit and the price, and check whether the company replies to a complaint.

What should a Columbus renter or landlord do differently?

Start with who hires. About 56% of Columbus homes are renter-occupied (Census ACS 2019-23), and Columbus Public Health holds the owner of a multi-unit building responsible for pest elimination. A tenant should send written notice with dated photos before hiring anyone.

Landlords have their own questions. Ask whether the company treats the building or only the unit, how it handles access to each apartment and whether the schedule covers return visits after the first. For a house you rent out, see how residential pest control is scoped, and put the answers in the service agreement.

Does the type of pest change how you choose?

It does. Some jobs reward speed, such as a hornet nest near a door, where a company that can come out quickly when the schedule allows is worth a call. Others reward patience and follow-through, such as bed bugs or German cockroaches, where the plan matters more than the first visit.

For termites and other wood-destroying insects tied to a home sale, the state rule above applies, so the lookup is not optional. For a business, ask about written service records, since inspectors and customers may want them. Tell the company about your situation early, because the right questions change with the pest.

Which records should you keep after the job?

Keep the paperwork in one folder. It protects you if the pest returns, and it is useful if you sell or file a complaint.

• The written estimate and the final invoice.
• The inspection notes or report, with the date.
• The names of the products used and the label re-entry time.
• The dates of planned follow-up visits and what each one covered.
• A copy of the ODA lookup result for the company.

If a company cannot give you most of this, ask why. Written records are how you tell a repeat problem from a repeat sale.

What does a good first visit look like?

A good first visit starts with questions and a look, not a spray. The visitor should ask what you have seen and where, check the likely sources and tell you what they found. You should get the price explained before any work starts, and a written record afterward.

A good visit also ends with a plan for what comes next. That may be a single treatment, follow-ups on a schedule, or sealing work to close entry points. Either way, you should know who is coming back and when.