HVAC in Cincinnati, OH: written quotes on one scope

For a Cincinnati heating or air-conditioning job, request written quotes against one scope.Cincinnati's permit document sets out a permit rule for replacement units, furnace add-ons, duct re-work (read 17 October 2026), quoted below.Cincinnati averages 1125.4 cooling degree days a year (NOAA normals 1991-2020, Cincinnati Lunken Ap station).

InstaBids is an AI-run marketplace for homeowners and property managers: describe a home job once, by chat or through your own AI assistant, add photos, and get multiple written quotes on the same scope, compared apples to apples, with no phone calls or home visits before you pick.

By InstaBids editorial team with AI research agents. Sources read: 17 October 2026 Latest source read: 3 November 2026 Updated 2026-10-27

Describe it onceBy chat, or through your own AI assistant, and add photos.
Post it and send itContractors bid in writing on that scope.
Compare line by lineEvery quote is written against the same scope.
You chooseContact details stay hidden until you pick and they confirm.

For your AI assistant

MCP connector · REST API · plain HTML

Hand any of these to your assistant and it can help you write this job's request; you send the request yourself. What you type in the job box above goes into the prompt these buttons carry. The connector asks you to sign in to your InstaBids account the first time.

MCP connector URLhttps://instabids.ai/api/agent/mcp
Agent API (OpenAPI)https://instabids.ai/openapi.json
Start-request linkhttps://instabids.ai/intake?trade=ac&from=hire-hvac--oh--cincinnati&utm_source=us&utm_medium=page&utm_campaign=hire&page_type=hire&place=cincinnati%2C+OH#job=heating%20or%20air-conditioning%20job
Prompt for any AI, with your job

Open it in your assistant

Add InstaBids as a connector

Every page is plain HTML. Steps for every assistant: add to your assistant.

Key facts for hiring an HVAC contractor in Cincinnati

Cincinnati's permit page: a permit rule for A/C or furnace installation or replacement (read 17 October 2026), quoted below.
Cincinnati's permit document: a permit exemption that begins “Note: Permits are not required” (read 17 October 2026), quoted below.
Utility gas heats 56.3% (±1.1 points) of Cincinnati's occupied homes (Census ACS 2020-2024).
Cincinnati averages 4803.8 heating degree days a year (NOAA normals 1991-2020, Cincinnati Lunken Ap station).

How to get written quotes on one scope

Describe the job once, using the scope checklist below, built from what we found for Cincinnati.
Post it on InstaBids and send it.
Every quote is written against the same scope, so they compare line by line.
You choose who gets your number.
Your AI assistant can help you write it: InstaBids works as a connector in Claude and in any MCP client, added by URL with your InstaBids sign-in, and a ChatGPT app is coming. You send the request yourself. Connect an assistant

Your written scope for a heating or air-conditioning job in Cincinnati

The equipment: capacity, efficiency rating and model, in writing
The heating side too: Cincinnati's heating degree days mean the system heats as well as cools
Gas line and venting checks if the system burns gas, as many of Cincinnati's homes do
Who pulls the Cincinnati permit for replacement units, furnace add-ons, duct re-work, and when the inspection is booked
Who pulls the Cincinnati permit for A/C or furnace installation or replacement, and when the inspection is booked
Whether the Cincinnati permit exemption quoted below covers your job, or the job needs a permit
Removal and disposal of the old parts or materials
Warranty terms on parts and labor, in writing

Do you need a permit for a heating or air-conditioning job in Cincinnati?

Cincinnati's permit document (read 17 October 2026): “Permits are required for all new installations, replacement units, pre-fab fireplaces, wood burning stoves, furnace add-ons, commercial kitchen hoods, hood suppression, metal chimney alterations, duct re-work and any related mechanical devices.” Open Cincinnati's source document

Cincinnati's permit page (read 17 October 2026): “Heating (furnaces, wood burning stoves, fireplaces, etc.), ventilating, air conditioning, fuel-burning and related devices require permits for installation or replacement.” Open Cincinnati's source page

Cincinnati's permit document (read 17 October 2026): “Note: Permits are not required for duct extensions in additions to one-, two- or three- family dwellings or window air conditioning units.” Open Cincinnati's source document

What in Cincinnati changes the job

Ask which heat source the quoted equipment will use.

NOAA explains: “The degree day is one measure of the weather related energy demand.” Ask for equipment sized to that climate.

Median hourly wage for Heating, Air Conditioning, and Refrigeration Mechanics and Installers in the Cincinnati, OH-KY-IN area, May 2025: $29.92 (U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics).

This is what workers in this occupation are paid per hour. It is not what a contractor charges for a job.

How does InstaBids work?

InstaBids does not hold payment for the work; you pay the contractor directly on the terms of the bid you accepted.

How is InstaBids different?

Each bidder appears under a stable label such as Contractor A, so you judge the work, not the brand.

Contact details stay hidden until the homeowner picks a contractor and they confirm the connection.

The contact-detail filter can miss disguised contact details.

Sources for the facts on this page

Cincinnati permit document, read 17 October 2026: www.cincinnati-oh.gov
Cincinnati permit page, read 17 October 2026: www.cincinnati-oh.gov
BLS Occupational Employment and Wage Statistics (series OEUM001714000000049902108), May 2025, read 17 October 2026: api.bls.gov
NOAA NCEI U.S. Climate Normals 1991-2020, read 17 October 2026: www.ncei.noaa.gov
U.S. Census Bureau, American Community Survey 5-year (B25040), ACS 5-year 2020-2024, read 17 October 2026: api.census.gov
NOAA CPC degree-day definition, read 3 November 2026: www.cpc.ncep.noaa.gov

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.