Eight states into this series, every page has answered a version of the same question: were you licensed, and when. Ohio does not answer it, because Ohio does not really ask it.
Ohio licenses five trades and no general contractor at all. More than that, the chapter that does the licensing defines its own scope in a way that takes ordinary houses out of it. And nowhere in Ohio law is there anything like California's section 7031, the provision that stops an unlicensed contractor suing for the money.
That does not make Ohio a soft state. It means the exposure sits somewhere else: in the written contract, the insurance you have to carry, and which consumer statute you end up under. Get those wrong and Ohio bites hard. Get the license question wrong and, on payment at least, very little happens.
What Ohio actually licenses
ORC 4740.01(A) names them, and the list is closed:
"'License' means a license the Ohio construction industry licensing board issues to an individual as a heating, ventilating, and air conditioning contractor, refrigeration contractor, electrical contractor, plumbing contractor, or hydronics contractor."
Five trades. No general contractor. No home improvement contractor. The absence is not something a source told us, it is what a closed list means: there is no residual category in the definition for a builder to fall into.
The definition that takes houses out
This is the part that makes Ohio different from the other seven, and it is easy to miss because it is buried in a definitions section.
Chapter 4740 hangs almost everything on the term "construction project". ORC 4740.01(F) defines it:
"'Construction project' means a construction project involving a building or structure subject to Chapter 3781. of the Revised Code and the rules adopted under that chapter, but not an industrialized unit or a residential building as defined in section 3781.06 of the Revised Code."
So you have to go to 3781.06 to find out what has just been excluded. ORC 3781.06(C)(9):
"'Residential building' means a one-family, two-family, or three-family dwelling house, and any accessory structure incidental to that dwelling house. 'Residential building' includes a one-family, two-family, or three-family dwelling house that is used as a model to promote the sale of a similar dwelling house."
Read those two together. The operative term in Ohio's contractor licensing chapter is defined to exclude one, two and three family houses. That is the whole spine of this page, and it is why the other seven states do not describe Ohio.
Trade licensing for residential work in Ohio is a local matter, handled by building and health departments, not by the state board.
What happens if you do it anyway
ORC 4740.13(A) states the prohibition plainly:
"No person shall act as or claim to be a type of contractor that this chapter licenses unless that person holds or has been assigned a license issued pursuant to this chapter for the type of contractor that person is acting as or claiming to be."
Two consequences follow, and both run to the state rather than to your customer.
A civil penalty. ORC 4740.16(B) lets the appropriate specialty section, after a hearing, "impose a fine on the person, not exceeding one thousand dollars per violation per day", and refer the matter to a local prosecutor. That figure has not moved: the section was amended on 3 October 2023 by House Bill 33, and comparing the current text against the archived 17 September 2014 version shows the only change was in division (A), where "send a written notice" became "serve a written notice" with an added cross reference. Division (B) is word for word identical.
A criminal penalty. ORC 4740.99:
"Whoever violates division (A) of section 4740.13 of the Revised Code is guilty of a minor misdemeanor on the first violation and a misdemeanor of the fourth degree on subsequent violations."
What does not happen: there is no section 7031 here
No Ohio statute bars an unlicensed contractor from suing for payment. Not in Chapter 4740, not in Chapter 4722, not in the Consumer Sales Practices Act.
The enforcement design says why. ORC 4740.13(B) routes enforcement through the board and the attorney general:
"Upon the request of the appropriate specialty section of the Ohio construction industry licensing board, the attorney general may bring a civil action for appropriate relief, including but not limited to a temporary restraining order or permanent injunction in the court of common pleas of the county where the unlicensed person resides or is acting as or claiming to be a licensed contractor."
The Eighth District Court of Appeals read that division exactly that way in Sal's Heating & Cooling, Inc. v. Bers Acquisition Co., holding that "a plain reading of the statute reveals that it is within the province of the Ohio Construction Industry Licensing Board, not Sal's, to initiate actions to enforce compliance with the statute", and that a competitor therefore had no standing to sue over another firm's licensing violation.
Be careful how far you take that case. Sal's was a dispute between competing companies about non-compete agreements and trade secrets. It decided that a bare 4740.13 violation is not a tort and confers no private standing. It did not decide whether an unlicensed contractor's own contract is enforceable against a customer, because that question was not in front of the court.
What can be said from the statutes is narrower and still useful: Ohio has enacted no equivalent to California Business and Professions Code section 7031, and no provision anywhere in the sourced chapters conditions the right to sue for compensation on holding a license.
There is a second, quieter signal pointing the same way. A search of the CourtListener opinion database returns exactly one Ohio decision citing R.C. 4740.13, and it is Sal's, a trade secrets case. That database is not exhaustive and absence there is not proof, but it is what you would expect of a licensing prohibition that generates almost no private litigation: there is no payment bar to fight over.
Contrast Chapter 4722, covered below, which the same database shows being litigated steadily and recently. In Ohio the argument is about the contract, not the license.
The lever is the contract, not the license
Ohio's real consumer protection for building work is Chapter 4722, the Home Construction Service Suppliers Act, and it is not keyed to licensing at all.
Two definitions do the work. ORC 4722.01(C) defines a "home construction service contract" as one "to perform home construction services... for an amount exceeding twenty-five thousand dollars". ORC 4722.01(D) defines the "supplier":
"'Home construction service supplier' or 'supplier' means a person who contracts with an owner to provide home construction services for compensation and who maintains in force a general liability insurance policy in an amount of not less than two hundred fifty thousand dollars."
So the insurance is not a recommendation sitting alongside the definition. It is inside it.
ORC 4722.02 then requires a written contract at or above the same threshold, listing nine mandatory contents including the supplier's taxpayer identification number, the anticipated start and completion dates, the total estimated cost, and a copy of the certificate of insurance. It also requires a specific written notice, in the statute's own capitals, whenever unforeseen but necessary excess costs pass five thousand dollars across the whole contract, with the owner choosing in advance whether that estimate comes in writing or orally.
Note what is absent from all of it. Chapter 4722 does not require a Chapter 4740 license. The two schemes are separate, and conflating them is the most common way to get Ohio wrong.
The carve-out that decides which law you are under
This is where Ohio gets genuinely unusual, and it runs the opposite way to what most people assume.
Chapter 4722 does not feed violations into the Consumer Sales Practices Act. The CSPA excludes them. ORC 1345.01(A) defines "consumer transaction" and then lists what is not one, including:
"transactions involving a home construction service contract as defined in section 4722.01 of the Revised Code"
So a qualifying home construction service contract is carved out of the CSPA, and remedied under Chapter 4722 instead. Chapter 4722 was built to displace the CSPA for that category, not to plug into it.
This is not theoretical. In Orion Mgt., Inc. v. Kaeka, decided by the Ninth District on 26 March 2025, homeowners counterclaimed under the CSPA against a restoration contractor. The trial court gave the contractor summary judgment on that counterclaim, and the appellate court recorded the reasoning: "It found the CSPA did not apply because Orion and Homeowners had not engaged in a consumer transaction." They had executed a home construction service contract instead.
A drafting note worth carrying, from the same case: although the statute is commonly called the Home Construction Service Suppliers Act, the court observed that "the parties and the lower court routinely eliminated the word 'Suppliers'" and adopted HCSA as the abbreviation. Search for the wrong acronym and you will miss the case law.
The date that decides whether remodeling gets treble damages
Here is the part that will catch people out for years, and it turns on a single amendment.
Since 20 September 2024, ORC 4722.01(B) has defined "home construction service" as "the construction of a residential building, including the creation of a new structure and the repair, improvement, remodel, or renovation of an existing structure."
When the Act was originally passed in 2012, that definition read simply "the construction of a residential building". No mention of repair, remodeling or renovation. And, as the Second District pointed out in Worch Lumber, Inc. v. Fetzer on 29 May 2026, "the term 'construction' is not defined by the HCSSA."
So the courts went looking for a meaning, and found one in the Supreme Court of Ohio. State ex rel. Celebrezze v. Natl. Lime & Stone Co., 68 Ohio St.3d 377 (1994), took "construction" from Black's Law Dictionary as:
"[t]he creation of something new, as distinguished from the repair or improvement of something already existing."
The consequence follows directly. Ohio's Fifth and Eleventh Districts held that the HCSSA as originally enacted applied only to new home construction, not to repairs, remodels or renovations:
- Beder v. Cerha Kitchen and Bath Design Studio, LLC, 2022-Ohio-4463 (11th Dist.): the CSPA, not the HCSSA, governed a home remodeling contract on an existing home, because "home construction service" did not encompass remodeling.
- Estate of Tomlinson v. Mega Pool Warehouse, Inc.: a new swimming pool plus improvements to an existing concrete deck was governed by the CSPA, not the HCSSA.
- A1 Heating and Cooling, Inc. v. Thomas, 2024-Ohio-109 (5th Dist.): the HCSSA did apply to heating and plumbing supplied in a newly constructed home.
Put the amendment and those cases together and you get a rule with a date on it:
| Contract signed | Remodel, repair or renovation of an existing home falls under | What the homeowner can recover |
|---|---|---|
| Before 20 September 2024 | The CSPA | Treble damages or $200, whichever is greater, plus up to $5,000 noneconomic (ORC 1345.09(B)) |
| On or after 20 September 2024 | The HCSSA, because the definition now names remodeling | Rescission or actual economic damages plus up to $5,000 noneconomic. No trebling (ORC 4722.08(A)) |
The 2024 amendment moved remodeling work out of the treble damages regime. For a contractor that is a meaningful reduction in exposure. For a homeowner it is a meaningful loss of leverage. Either way the question to ask first is not what the work was, but when the contract was signed.
⚠️ Where this still stops. Orion shows the carve-out working when the 4722.01 criteria are met, and Worch Lumber maps the new-build against remodeling line. Neither decides what happens to a contract that fails the $25,000 threshold or the $250,000 insurance requirement built into the 4722.01 definitions, and whether such a contract falls back into CSPA coverage. That question was not before either court. We are not going to reason our way past it and present the result as settled.
What the customer gets
Under Chapter 4722, ORC 4722.08 gives the owner a cause of action for a violation of sections 4722.02, 4722.03 or 4722.04. The owner may "rescind the transaction or recover the owner's actual economic damages plus an amount not exceeding five thousand dollars in noneconomic damages". Attorney fees are available to the prevailing party in two situations only: a groundless claim brought in bad faith by the owner, or a violation the supplier knowingly committed. And ORC 4722.08(F) preserves everything else: "Nothing in this section shall preclude an owner from also proceeding with a cause of action under any other theory of law."
Where the CSPA does apply, ORC 1345.09 is materially stronger. Division (B) allows a consumer to "rescind the transaction or recover, but not in a class action, three times the amount of the consumer's actual economic damages or two hundred dollars, whichever is greater, plus an amount not exceeding five thousand dollars in noneconomic damages". Division (G) defines actual economic damages as direct, incidental and consequential pecuniary loss, excluding noneconomic loss. Division (H) mirrors 4722.08(F) and preserves other theories.
Trebling is the difference between the two regimes, and which regime you are in is decided by the 1345.01(A) carve-out rather than by anything you did on site.
Liens do not care about your license
ORC Chapter 1311 conditions lien rights on your role in the improvement, not on your credentials. ORC 1311.02 grants the lien to "every person who performs work or labor upon or furnishes material in furtherance of any improvement undertaken by virtue of a contract, express or implied, with the owner", and to subcontractors, laborers and material suppliers in the same terms.
No provision in the chapter conditions a lien on holding a license. That is worth stating plainly rather than leaving as an absence, because it is the opposite of Georgia, where an unenforceable contract kills the lien claim outright.
Lending your license is its own offense
One provision that reads like licensee discipline is really about unlicensed work seen from the other end. ORC 4740.10(B)(1)(h)(i) makes a licensee subject to suspension, revocation, refusal, extra continuing education or a fine for "allowing the person's license to be used by an unlicensed person or entity". Division (B)(1)(j) does the same for failing to maintain insurance through the license year.
And ORC 4740.10(B)(2) connects the state scheme to the local reality: the board may act against a licensee on being notified that "a municipal corporation or any other governmental agency has suspended or revoked the local contracting license or registration" of that person.
Eight states, eight different questions
| State | What the law actually tests |
|---|---|
| Ohio | Nothing, as far as payment goes. There is no bar on suing, and houses sit outside the licensing chapter by definition |
| New York | Whether you pleaded a valid local license. It is an element of the claim, not a defense |
| Virginia | Your actual knowledge, plus good faith substantial performance (§ 54.1-1115(C)) |
| Arizona | Two dates: contract formation and when the cause of action arose (ARS 32-1153) |
| Florida | The contract date only (§ 489.128(1)(c)) |
| Washington | The contract date only (RCW 18.27.080) |
| North Carolina | Throughout, but severable (Brady v. Fulghum) |
| California | Every day of performance (§ 7031(a)) |
Ohio is the first state in this series where the honest answer to "what does being unlicensed cost me on this invoice" is nothing directly. The cost lands through the written contract rules and the insurance requirement instead.
Where this came from
| Source | What it gave us | Transport, retrieved 2026-08-05 |
|---|---|---|
| ORC 4740.01, 4740.13, 4740.16, 4740.99, 4740.10, 4740.101 | The five licensed trades, the residential exclusion, the prohibition, the civil and criminal penalties, license lending | codes.ohio.gov, official Legislative Service Commission site |
| ORC 3781.06(C) | The definition of "residential building" that 4740.01(F) points at | codes.ohio.gov, official |
| ORC 4722.01, 4722.02, 4722.08 | The $25,000 threshold, the $250,000 insurance requirement, contract contents, the $5,000 excess cost notice, the owner's remedies | codes.ohio.gov, official |
| ORC 1345.01(A), 1345.09 | The home construction service carve-out, and the full CSPA remedies including trebling | codes.ohio.gov, official |
| ORC 1311.02 | Lien rights defined by role, with no licensure condition | codes.ohio.gov, official |
| ORC 4740.16, archived 17 September 2014 version | Direct comparison proving the $1,000 per violation per day figure did not change in the 2023 amendment | codes.ohio.gov dated version URL, official |
| Sal's Heating & Cooling, Inc. v. Bers Acquisition Co., L.L.C., 2022-Ohio-1756, 192 N.E.3d 537 (8th Dist., 26 May 2022) | No private cause of action under 4740.13; enforcement reserved to the board and the attorney general | Opinion text read in full via CourtListener. Used only to corroborate the reading of 4740.13(B), never as the foundation for a rule |
| Orion Mgt., Inc. v. Kaeka, 2025-Ohio-1047 (9th Dist., 26 March 2025) | The CSPA carve-out applied in practice: no consumer transaction where a home construction service contract was executed. Also the HCSA naming convention | Opinion text read in full via CourtListener |
| Worch Lumber, Inc. v. Fetzer (2nd Dist., 29 May 2026) | The 20 September 2024 amendment to the 4722.01(B) definition, the original 2012 wording, and the line of authority reading the original Act as new-build only | Opinion text read in full via CourtListener |
| State ex rel. Celebrezze v. Natl. Lime & Stone Co., 68 Ohio St.3d 377 (1994) | The Supreme Court of Ohio definition of "construction" the districts relied on: creation of something new, as distinguished from repair or improvement of something existing | Quoted as reproduced in Worch Lumber. The opinion itself was not read, so nothing here characterizes its wider reasoning |
| Beder v. Cerha Kitchen and Bath Design Studio, LLC, 2022-Ohio-4463 (11th Dist.); Estate of Tomlinson v. Mega Pool Warehouse, Inc.; A1 Heating and Cooling, Inc. v. Thomas, 2024-Ohio-109 (5th Dist.) | The pre-amendment position: remodeling and repair sat under the CSPA, new build under the HCSSA | Holdings as summarized in Worch Lumber. Of the three, only Tomlinson was separately retrieved; Beder and A1 Heating were not read, so each is cited on Worch Lumber's characterization rather than on its own text |
| CourtListener opinion database | Exactly one Ohio decision cites R.C. 4740.13, against a steady and current line of Chapter 4722 litigation | Searched 2026-08-05. Not an exhaustive database; treated as a signal, not a proof |
On the statutory text. Every Ohio provision quoted here was retrieved through Perplexity deep research rather than read directly, because codes.ohio.gov times out at TCP connect from our network and from a browser on it. Each of the four load-bearing provisions (4740.01, 3781.06(C), 4740.13, 1345.01(A)) was then retrieved a second time in a separate session with no shared history and no indication of the expected answer. The two transcriptions agree character for character, including effective dates. That is corroboration, not first-hand reading, and it is recorded here rather than behind the word "official".
⚠️ What is not here. Whether a contract that fails the 4722.01 threshold or insurance criteria falls back inside the Consumer Sales Practices Act. Orion confirms the carve-out operates when the criteria are met and does not reach the failure case. Also absent: any claim that an Ohio court has ruled on whether an unlicensed contractor may enforce a construction contract against a customer, because Sal's did not decide that and no other authority says so.
⚠️ This page is Ohio only, and it is general guidance rather than legal advice. Because residential trade licensing in Ohio is local, check the requirements of the specific city, county or township the work is in before you sign anything.
Common questions
Does Ohio have a state contractor license?
Ohio licenses five trades at state level: heating, ventilating and air conditioning, refrigeration, electrical, plumbing and hydronics. There is no state general contractor or home improvement license, and no residual category in the definition for one (ORC 4740.01(A)).
Can an unlicensed contractor sue for payment in Ohio?
Nothing in Ohio law bars it. There is no equivalent to California Business and Professions Code section 7031. Enforcement of the licensing rule runs to the licensing board and the attorney general, not to the customer (ORC 4740.13(B)).
Does Ohio trade licensing apply to work on houses?
Largely not. ORC 4740.01(F) defines "construction project" to exclude a residential building as defined in ORC 3781.06, which means one, two and three family dwelling houses. Residential trade work is regulated by local building and health departments.
What is the penalty for unlicensed contracting in Ohio?
The board may impose a fine of up to $1,000 per violation per day after a hearing (ORC 4740.16(B)). Separately, a violation of ORC 4740.13(A) is a minor misdemeanor on a first offense and a fourth degree misdemeanor on later ones (ORC 4740.99).
When does an Ohio home improvement contract have to be in writing?
When the work exceeds $25,000 and the supplier carries at least $250,000 of general liability insurance, both of which sit inside the definitions in ORC 4722.01. ORC 4722.02 then lists nine things the written contract must contain.
Can an Ohio homeowner use the Consumer Sales Practices Act?
Not if the job is a qualifying home construction service contract. ORC 1345.01(A) carves those out of the definition of "consumer transaction", so they are remedied under Chapter 4722 instead, which has no trebling.
Related: California section 7031: when a customer can take back every dollar · Florida unlicensed contracting: what it costs you · North Carolina unlicensed contracting · Arizona unlicensed contracting: the two dates · Washington: registration is a prerequisite to suing · Virginia: the good faith escape hatch · New York: the license you have to plead · What happens if you work without a contractor's license · Do I need a contractor license · Working in Ohio
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