HVAC in Los Angeles, CA: written quotes on one scope

For a Los Angeles heating or air-conditioning job, request written quotes against one scope.Los Angeles's permit page sets out a permit rule for installation or modification of heating/cooling systems (read 17 October 2026), quoted below.Los Angeles averages 890.1 cooling degree days a year (NOAA normals 1991-2020, U C L A 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--ca--los-angeles&utm_source=us&utm_medium=page&utm_campaign=hire&page_type=hire&place=los+angeles%2C+CA#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 Los Angeles

Los Angeles's permit page: a permit rule for installation or modification of heating/cooling systems (read 17 October 2026), quoted below.
Utility gas heats 57.3% (±0.3 points) of Los Angeles's occupied homes (Census ACS 2020-2024).
Los Angeles averages 1126.9 heating degree days a year (NOAA normals 1991-2020, U C L A station).

How to get written quotes on one scope

Describe the job once, using the scope checklist below, built from what we found for Los Angeles.
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 Los Angeles

The equipment: capacity, efficiency rating and model, in writing
Gas line and venting checks if the system burns gas, as many of Los Angeles's homes do
Who pulls the Los Angeles permit for installation or modification of heating/cooling systems, and when the inspection is booked
Whether your job is one Los Angeles's page quoted below lists, and who applies for the permit if one applies to your job
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 Los Angeles?

Los Angeles's permit page (read 17 October 2026): “Mechanical HVAC Permits are required for any installation or modification of heating/cooling systems, smoke control systems, hood and ventilation systems, or engineered water heater/heating appliance vents.” Open Los Angeles's source page

Los Angeles's permit page (read 31 October 2026): “Various documents and signatures are required at permit issuance. In your next steps, you will need to identify who will sign for and pay for this permit. You may obtain a permit as an Agent, an Owner, or a Contractor.” Open Los Angeles's source page

Los Angeles's permit page (read 17 October 2026): “Plans shall be filed with and approved by the Department (as an HVAC Plan Check) before any permit is issued for work listed below is started:” “Installations where the system BTU/H input capacity is 500,000 BTU/H (2299.3 L/W) and over for comfort heating, or for comfort cooling, or for absorption units for residential applications”. Open Los Angeles's source page

What in Los Angeles 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 Los Angeles-Long Beach-Anaheim, CA area, May 2025: $35.49 (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

Los Angeles permit page, read 31 October 2026: dbs.lacity.gov
Los Angeles permit page, read 17 October 2026: dbs.lacity.gov
BLS Occupational Employment and Wage Statistics (series OEUM003108000000049902108), 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.