HVAC in Louisville, KY: written quotes on one scope

Key facts for hiring an HVAC contractor in Louisville

• Louisville Metro's permit rule and applicant conditions are quoted in the permit section. Metro code §§ 150.022–150.024, read 2026-10-31.
• The Metro code's rough-in and completion notification wording appears in the same section. Metro code § 150.025(A), read 2026-10-31.
• For Louisville/Jefferson County metro government (balance), ACS 2020–2024 estimates utility gas heats 58.8% of occupied homes (±0.8 percentage points, 90% confidence). Identify the existing fuel before asking for a replacement scope. Census B25040, read 2026-10-17.
• The climate context uses Louisville WFO, a NOAA station inside the Census place. Ask for calculations for your own home when comparing equipment sizes. NOAA 1991–2020 normals, read 2026-10-17.

How to get written quotes on one scope

Louisville WFO records 1,426.6 annual cooling degree days, base 65°F, in NOAA 1991–2020 normals. Put the cooling-load calculation, equipment model, retained ducts and proposed duct alterations on the same scope so proposals cover the same decisions. NOAA station data, read 2026-10-17.

1. Describe the job once, using the scope checklist below, built from what we found for Louisville.
2. Post it on InstaBids and send it.
3. Every quote is written against the same scope, so they compare line by line.
4. You choose who gets your number.
5. 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 Louisville

In Louisville/Jefferson County metro government (balance), electricity heats 38.8% of occupied homes (±0.9 percentage points, 90% confidence; ACS 2020–2024). In an AC repair request, describe whether the cooling equipment shares controls or components with electric heating, and ask for diagnosis and proposed work as separate lines. Census B25040, read 2026-10-17.

• The equipment: capacity, efficiency rating and model, in writing
• The heating side too: Louisville'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 the homes in Louisville/Jefferson County metro government do
• Whether the Louisville permit exemption quoted below covers your heating, air conditioning or refrigeration installation, 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 Louisville?

Louisville's permit page on codelibrary.amlegal.com (read 31 October 2026): “The provisions of this subchapter shall apply to the installation, repair and maintenance of all heating, air conditioning and refrigeration equipment located within Louisville Metro including equipment or apparatus located in private plants, provided, however, other incorporated cities located within Louisville Metro which maintain their own heating, air conditioning and refrigeration permitting and inspections programs are exempt from this subchapter. (A) A permit must be obtained from the Department prior to any heating, air conditioning or refrigeration installation or the repair or alteration of an existing system. The permits shall be valid only for the location set forth in the application. (B) Application for heating, air conditioning or refrigeration permits shall be made by an identified contractor of the appropriate class and shall state the names of owners, the location of the property upon which the work is to be performed and the estimated full extent of work to be performed. The Department may require that a full set of plans accompany the permit application. The plans shall be drawn in sufficient detail to show full compliance with the code. (C) An HVAC permit may be obtained by the owner of a single-family residence. The permit applicant must own the property and live or intend to live at the location on a full-time basis. However, they shall be required to complete the home owner HVAC application affidavit and permit application forms and obtain a permit for the work to be performed prior to initiating the work.” Open Louisville's source page

Louisville's permit page “Louisville Metro Code § 150.025(A)” (read 31 October 2026): “(A) The inspector shall at a minimum be notified by any person, firm, or corporation installing any new HVAC, first when rough-in work is complete and, second, when the entire job is complete. The inspector, upon receipt of such notice, shall inspect the work and if the work conforms with the provisions of the code, the inspector shall post a notice of approval at or near the work.” Open Louisville's source page

Furnace repair in Louisville

Louisville WFO has 4,279.2 annual heating degree days, base 65°F, in NOAA 1991–2020 normals. For furnace repair, list the symptoms and existing fuel; if replacement is proposed, ask for the heating-load calculation and how existing ducts and venting are addressed. NOAA station data, read 2026-10-17.

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 Louisville/Jefferson County, KY-IN area, May 2025: $28.33 (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

• Louisville permit page, read 31 October 2026: codelibrary.amlegal.com
• BLS Occupational Employment and Wage Statistics (series OEUM003114000000049902108), 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.