TL;DR
- Columbia Gas of Ohio is the dominant gas distributor statewide — for gas leaks, dial 1-800-344-4077 (after you leave the house).
- Duke Energy Ohio covers Cincinnati and the southwest counties for both electric and gas, with the strongest EV-charger incentive portfolio in the state.
- FirstEnergy brands (Toledo Edison, Ohio Edison, The Illuminating Company) cover Cleveland, Akron, Youngstown, and Toledo for electric service.
- AEP Ohio covers Columbus + 56 counties for electric service and runs the largest smart-thermostat rebate funnel.
- Dominion Energy Ohio handles natural gas for the Cleveland metro and far-northeast counties — separate brand from the FirstEnergy electric footprint.
Pick your utility
Each card below opens a deep-dive page with the utility's service footprint, current rebate programs, 24-hour emergency phone, outage protocol, and explicit guidance on when to call a licensed Ohio contractor instead of the utility.
Columbia Gas of Ohio
Statewide gas distribution — Cleveland, Columbus, Cincinnati outskirts, Toledo, Dayton outskirts, Akron, and 60+ Ohio counties.
- Primary trade alignment
- Gas tech + plumber + HVAC
- Rebate anchor
- We Care energy assistance, smart-thermostat rebates, ENERGY STAR gas-furnace + water-heater rebates.
- 24-hour emergency
- 1-800-344-4077
Duke Energy Ohio
Cincinnati + Southwest Ohio — Hamilton, Butler, Warren, Clermont, Brown, and Adams counties.
- Primary trade alignment
- Electrician
- Rebate anchor
- My Home Energy Report, EV charger rebates, smart-thermostat rebates, HVAC tune-up incentives.
- 24-hour emergency
- 1-800-543-5599
FirstEnergy (Ohio Edison / Toledo Edison / Illuminating Company)
Northeast + Northwest Ohio — Cleveland, Akron, Youngstown, Toledo, plus 30+ counties under three FirstEnergy operating companies.
- Primary trade alignment
- Electrician + HVAC
- Rebate anchor
- Energy Audit, AC tune-up rebates, smart-thermostat rebates, EV charger pilot programs.
- 24-hour emergency
- 1-888-544-4877
AEP Ohio
Columbus + Southeast Ohio — Franklin, Delaware, Madison, Fairfield, Pickaway, Licking, Ross plus 49 additional counties (56 total).
- Primary trade alignment
- Electrician
- Rebate anchor
- AEP Ohio Energy Audit, smart-thermostat rebates, EV charger rebates, demand-response programs.
- 24-hour emergency
- 1-800-672-2231
Dominion Energy Ohio
Cleveland metro + North Ohio gas — Cuyahoga, Lorain, Lake, Geauga, Summit, Mahoning, Trumbull, Columbiana, and Ashtabula counties.
- Primary trade alignment
- Gas tech + HVAC + plumber
- Rebate anchor
- Conservation programs, low-income energy assistance (HEAP/PIPP), residential gas-line guidance.
- 24-hour emergency
- 1-877-542-2630
Why publish utility guides
Most Ohio homeowner repair decisions touch a utility relationship — a furnace replacement triggers a rebate question, an EV-charger install triggers an interconnect inspection, a power-flicker triggers an outage map check, a gas smell triggers an evacuation. The five utilities on this page own the meters, run the rebate programs, and respond to safety events, but they do not perform residential repair work. That split confuses homeowners — they call the utility for jobs the utility will not do, and they call contractors for jobs the utility will do for free.
ProFix's editorial position is to map the seam honestly. Each utility page tells you exactly which jobs the utility owns (meter changes, service drops, outage restoration, gas-leak make-safe), exactly which jobs require an OCILB-licensed contractor (HVAC tech for furnace/AC work, plumber for water-heater or gas-line work, electrician for panel or branch-circuit work), and which jobs sit at the seam (smart-meter retrofits, EV charger installs, gas-line tie-ins) where utility coordination is required but the actual labor is contractor work.
Rebate amounts change every quarter — we cite ranges where they are publicly posted as of 2026-05-23, but we always link to the utility's own program page so a homeowner can verify the current dollars before committing to a project. ProFix earns nothing from any rebate program; the links exist only because they save Ohio homeowners real money on jobs they were going to do anyway.
Who this is for
- New Ohio homeowners figuring out which utility serves their address and which rebate programs they actually qualify for.
- Homeowners mid-emergency who need the right 24-hour number for a gas smell, a power outage, or a downed line — without scrolling through utility-marketing pages.
- Homeowners planning a rebate-eligible upgrade (smart thermostat, EV charger, high-efficiency furnace, heat pump) who want to coordinate the utility paperwork with the contractor install.
- Contractors who need a fast reference for which utility serves a given county and what utility paperwork the homeowner will need to provide.
- Property managers and HOA boards who need shared emergency contacts and rebate-program awareness for a portfolio of Ohio addresses.
Sources
Every dollar range, phone number, and service-area claim on the per-utility pages cites the utility's own public materials and, where available, the Public Utilities Commission of Ohio (PUCO). PUCO regulates electric and natural gas distribution in Ohio and publishes the governing tariffs that determine what each utility can charge for service. Primary references used across the per-utility pages include Columbia Gas of Ohio, Duke Energy, FirstEnergy, AEP Ohio, Dominion Energy Ohio, the ENERGY STAR rebate finder, and the consolidated ProFix data sources index. Rebate dollar amounts and program eligibility change frequently — verify every figure on the utility's own program page before committing to a project.
Hand the question to your preferred assistant — it will use ProFix Directory's open MCP server and llms.txt as context.