Furnace & AC Replacement Cost in Cincinnati, OH (2026 Prices)

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Typical furnace & ac replacement cost in Cincinnati

Job	Typical price	Data
Full HVAC replacement (AC + furnace)	$5,200-$13,500 per job	Cincinnati¹
Central AC replacement only	$3,800-$8,500 per job	Cincinnati¹
Gas furnace replacement only	$3,000-$8,000 per job	Cincinnati¹
Air-source heat pump system	$5,500-$12,000 per job	Cincinnati¹
Ductless mini-split system	$3,200-$9,500 per job	Cincinnati¹
Furnace replacement (HomeGuide national average range)	$2,000-$5,400 per job	US average²
AC unit replacement (HomeGuide national average range)	$2,500-$7,500 per job	US average²
AC repair, most jobs	$150-$450 per job	US average²
Furnace repair, most jobs	$125-$355 per job	US average²
HVAC tune-up	$70-$200 per visit	US average²
Mechanical permit, unincorporated Hamilton County (2025 fees; City of Cincinnati: $118 first unit + surcharges)	$123-$131 per permit	Cincinnati¹
HVAC technician hourly rate	$75-$150 per hour	US average²

Rows marked US average or Ohio are the best published figures we found where Cincinnati-specific data wasn't available. Cincinnati's overall prices run about 5% below the US average (BEA regional price parity, 2024)¹⁰, so local quotes often land at or a little under those numbers.

What changes the price

System type: furnace only, AC only, heat pump, or a full system
Equipment efficiency: 96% AFUE / 18+ SEER2 equipment costs about $1,500-$3,000 more than standard (Cincinnati source)
Home size and a proper load calculation (Manual J) to size the equipment
Ductwork condition: older Cincinnati homes may need an extra $800-$2,500 of duct work (Cincinnati source)
Season: shoulder seasons (April-May, September-October) give more scheduling room and negotiating leverage
Permit and inspection fees

Cincinnati specifics

Permit: Replacing a furnace or AC needs an HVAC permit in Cincinnati. The city fee is $118 for the first unit and $48 for each extra unit, plus surcharges (fee schedule effective July 1, 2026).⁴⁵
Unpermitted work: if a required permit is skipped, the city adds an investigation fee equal to the permit fee, on top of the permit.⁶ Outside Cincinnati city limits, your city or township sets its own rules.
Contractor registration: anyone doing contractor work inside Cincinnati city limits must hold a current city contractor registration, and the city won't issue permits until they do. You can look a contractor up on the city's website.⁷
State license: Ohio's Construction Industry Licensing Board covers electrical, plumbing and HVAC contractors; its licenses have historically applied to commercial work, so for home jobs in Cincinnati the city registration and permit are your main checks. If your pro holds a state license, ask for the number.⁸⁹
Cincinnati sits in IECC Climate Zone 4A (mixed-humid); a Manual J load calculation is recommended for sizing (hvacprojectcost.com, updated Oct 2026).
Hamilton County requires a mechanical permit for HVAC replacements; 2025 fees for one- and two-family homes in unincorporated areas are about $123-$131 for heating or AC only and $206-$219 for combined work. City of Cincinnati permits have their own schedule.
Duke Energy Ohio Smart $aver rebates (as of late 2025): air-source heat pump $400-$500, ductless mini-split $300 per indoor unit (max $900), geothermal $1,000-$1,200, smart thermostat $50.
HVAC contractors in Ohio are licensed by the Ohio Construction Industry Licensing Board (OCILB): five years of experience, minimum liability coverage and an exam (Today's Homeowner, Feb 2025). Local jurisdictions may add requirements.

Ways to save

Schedule replacement in spring or fall rather than mid-summer or mid-winter
Get at least three quotes with model numbers, permit cost and warranty terms spelled out
Ask about Duke Energy Ohio Smart $aver rebates ($400-$500 on qualifying air-source heat pumps as of late 2025); confirm current amounts first
Check for Columbia Gas of Ohio rebates on high-efficiency gas furnaces
Fix small repairs and do yearly tune-ups ($70-$200); HomeGuide says replace when a repair exceeds about 30% of a new system and the unit is over 10 years old

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Common questions

How much does a new furnace cost in Cincinnati?

A Cincinnati-focused 2026 guide puts gas furnace replacement at $3,000-$8,000 installed. HomeGuide's national average range for a furnace is $2,000-$5,400. Efficiency level, size and ductwork changes drive most of the difference.

How much does central AC replacement cost in Cincinnati?

The same Cincinnati guide lists central AC replacement at $3,800-$8,500, and a full AC plus furnace system at $5,200-$13,500. HomeGuide's national figure for replacing an AC unit is $2,500-$7,500.

Do I need a permit to replace my furnace or AC in Cincinnati?

A 2026 Cincinnati-area guide says all HVAC replacements require a mechanical permit. It lists Hamilton County fees (2025 schedule, unincorporated areas) of about $123-$131 for heating or AC alone and $206-$219 combined. Inside the city of Cincinnati, permits go through Cincinnati Building Services.

How much does an HVAC tune-up or repair cost?

HomeGuide lists tune-ups at $70-$200, most AC repairs at $150-$450 and most furnace repairs at $125-$355. Service call fees are typically $75-$200 and often apply to the first hour.

Are there tax credits or rebates for a new heat pump?

The federal Section 25C credit expired December 31, 2025, per the Cincinnati guide. Duke Energy Ohio's Smart $aver program listed $400-$500 for qualifying air-source heat pumps as of late 2025. Check current terms before buying.

Sources

Updated October 2026. Prices are published estimates, not quotes; your price depends on your home and the pro. SearchWrench doesn't take money from the pros listed here.

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Furnace & AC Replacement Cost in Cincinnati, OH (2026)