# NAICS code for hvac The NAICS code for hvac is 238220 (Plumbing, Heating, and Air-Conditioning Contractors). Its SBA small business size standard is $19 million in average annual receipts. Depending on the work, 811310 (Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance) or 238990 (All Other Specialty Trade Contractors) or 561621 (Security Systems Services (except Locksmiths)) may fit better.Source: NAICS 2022 (Census).Official source: [U.S. Census Bureau NAICS](https://www.census.gov/naics/) | Industry | Hvac | | --- | --- | | Primary NAICS | [238220](https://samgovapi.io/naics/238220) | | Title | Plumbing, Heating, and Air-Conditioning Contractors | | Size standard | $19 million in average annual receipts (13 CFR 121.201) | HVAC installation is 238220, shared with plumbing. ## Other codes to consider | Code | Title | Size standard | | --- | --- | --- | | [238220](https://samgovapi.io/naics/238220) | Plumbing, Heating, and Air-Conditioning Contractors | $19 million in average annual receipts | | [811310](https://samgovapi.io/naics/811310) | Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance | $12.5 million in average annual receipts | | [238990](https://samgovapi.io/naics/238990) | All Other Specialty Trade Contractors | $19 million in average annual receipts | | [561621](https://samgovapi.io/naics/561621) | Security Systems Services (except Locksmiths) | $25 million in average annual receipts | ## What NAICS 238220 covers This industry comprises establishments primarily engaged in installing and servicing plumbing, heating, and air-conditioning equipment. Contractors in this industry may provide both parts and labor when performing work. The work performed may include new work, additions, alterations, maintenance, and repairs. ## Examples classified under 238220 - Air system balancing and testing - Air vent installation - Air-conditioning system (except window) installation - Bathroom plumbing fixture and sanitary ware installation - Blower or fan, cooling and dry heating, installation - Boiler chipping, cleaning and scaling - Boiler, heating, installation - Central air-conditioning equipment installation ## Also searched as air duct cleaning, fire protection, fire sprinkler, fire sprinkler installation, hvac contractor, hvac contractors, plumber, plumbing, plumbing contractor ## Get this as JSON ``` curl "https://samgovapi.io/api/v1/naics/238220" \ -H "Authorization: Bearer sg_YOUR_KEY" ``` MCP tool: `naics_lookup`Keys start free, with no card. [Get a free API key](https://samgovapi.io/sign-up) or read the [docs](https://samgovapi.io/docs). ## Questions What is the NAICS code for hvac?The NAICS code most used for hvac is 238220, Plumbing, Heating, and Air-Conditioning Contractors. Depending on the work, 811310, 238990, 561621 may fit better.How do I choose between the codes for hvac?HVAC installation is 238220, shared with plumbing.Is a hvac business small for federal contracts?For NAICS 238220, a business is small at or under $19 million in average annual receipts (13 CFR 121.201), counting affiliates.Can I list more than one NAICS code?Yes. A SAM.gov registration can list many NAICS codes with one marked primary; each solicitation names the single code that applies to it. ## Related - [NAICS 238220](https://samgovapi.io/naics/238220) - [NAICS code lookup](https://samgovapi.io/naics-code-lookup) - [Size standard checker](https://samgovapi.io/size-standard-checker) - [NAICS code for an industry](https://samgovapi.io/naics-code-for)Independent. Not affiliated with, endorsed by or sponsored by GSA, SAM.gov or any U.S. government agency. Registering in SAM.gov is free at sam.gov.

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