Short answer: Ohio's state contractor licensing law covers HVAC, refrigeration, electrical, plumbing and hydronics, but not waterproofing or general home improvement. Check local registration and permits, proof of insurance, a written scope and a written warranty before you hire.
Licensing in Ohio
Ohio Revised Code Chapter 4740 licenses heating, refrigeration, electrical, plumbing and hydronics contractors at the state level. There is no state license for basement waterproofing or general home improvement. Some cities and counties have their own registration or permit rules, so ask your local building department what applies at your address.
If the job includes electrical work, such as a new circuit for a sump pump, or plumbing connections, that part may need a licensed tradesperson and a permit.
Questions to ask every contractor
- What's causing the water, and how did you determine that?
- What exactly is included: how many feet of drain, what pump, what pit, is a backup included, where does the discharge go?
- Will you need permits, and who pulls them?
- Can I see proof of liability insurance and workers' compensation?
- What does the warranty cover, for how long, and does it transfer if I sell the house?
- What happens to my finished walls and floors, and who restores them?
- When would you start, and how long will it take?
Red flags
- Pressure to sign the same day, or a big discount that expires tonight.
- A quote with no written scope, only a total price.
- Recommending a full system without explaining where the water is coming from.
- Only offering a sealer or paint for water that's actively coming in.
- No proof of insurance.
- A large cash deposit before any work starts.
Getting more than one quote
Two or three quotes give you a sense of the range and help you spot a recommendation that's out of line. Compare the scope line by line, not just the total. Our free service can connect you with up to two local contractors so you can compare.
Frequently asked questions
Does Ohio require a license for basement waterproofing?
Not at the state level. Ohio licenses HVAC, refrigeration, electrical, plumbing and hydronics contractors. Local cities or counties may have their own registration or permit requirements.
How many quotes should I get?
Two or three is common. More than that rarely adds much information, and it takes time when water is coming in.