Find a Plumber in Ohio
Plumbers across Ohio, license-checked before they reach you. Tell us the problem and your ZIP.
Tap water across Ohio's major cities carries real mineral content: utility data shows about 125 mg/L in Cincinnati and about 117 mg/L in Cleveland and 120 in Columbus, worth knowing before you shop for a water heater or a softener.
- Licensing split between state and local levels
- Real winters: deep frost, burst pipes, winterization season
- 3 hardness readings on record
Plumber licensing in Ohio
Plumbing oversight in Ohio is hybrid. The Ohio Construction Industry Licensing Board (OCILB) issues the state Plumbing Contractor license for commercial work; there is no state journeyman or master plumber license. Residential and journeyman requirements are handled by local building and health departments where required, so check what your city or county asks for before hiring.
- Authority. Ohio Construction Industry Licensing Board (OCILB), Ohio Department of Commerce, Division of Industrial Compliance
- License structure. state Plumbing Contractor license (commercial, also called a Master License); no state journeyman or master plumber licenses (residential and journeyman licensing is handled by local building and health departments where required)
- Worth knowing. The OCILB licenses commercial plumbing contractors statewide, while local building and health departments regulate residential contractors and may require the state license for commercial permits.
Checked against the official source, September 2026: com.ohio.gov. License verification against sources like this is how a pro enters matching on CopperMain. A request never reaches an unverified one.
What Ohio conditions mean for plumbing
Ohio winters land in the hard freeze class: deep frost is normal, and burst-pipe prevention and winterization matter every year. On the water side, utility figures put Cincinnati at 125 mg/L (7.3 gpg, hard), with Cleveland near 117 mg/L and Columbus about 120 (roughly 7 gpg, moderately hard), a mineral load worth factoring into water heater maintenance.
| Utility area | Hardness | Class | Source |
|---|---|---|---|
| Cincinnati | 125 mg/L (≈7.3 gpg) | hard | utility report, 2025 |
| Cleveland | 117 mg/L (≈6.8 gpg) | moderately hard | utility report, 2024 |
| Columbus | 120 mg/L (≈7 gpg) | moderately hard | utility report, 2025 |
Common plumbing services
Ohio city guides
City guides cover how plumbing is regulated locally: licensing, permits and water conditions. They are information pages, not coverage listings.
Getting a plumber in Ohio
City guides above cover licensing, permits and water conditions. For the job itself, describe the problem and your ZIP: a license-checked plumber who covers your area gets the details and contacts you with next steps and a quote.
Get a Plumber in Ohio
The form asks what a dispatcher would: the fixture, the symptom, the urgency and your ZIP.