Federal Contracting by NAICS Code · Construction
NAICS 238220: Plumbing, Heating, and Air-Conditioning Contractors
Specialty trade contractors installing and servicing plumbing, HVAC, and refrigeration systems. A core specialty trade for federal building maintenance, IDIQ JOC contracts, and base-operations support.
📊 Based on 369 real federal solicitations tracked under this code
Sector
Construction
Typical award value
$250K - $25M per award
Set-aside activity
Yes
Federal agencies that buy under NAICS 238220
These buyers award plumbing, heating, and air-conditioning contractors work under this code most often. Set up alerts on WinAContract to catch their solicitations early, then draft your response in GovCon.
Set-asides used under NAICS 238220
Filtering opportunities by NAICS 238220 and your certification surfaces the bids where large primes are excluded. See our set-aside program guides for how each one works.
Common questions about NAICS 238220
Which federal agencies buy under NAICS 238220?
The agencies that most frequently post plumbing, heating, and air-conditioning contractors solicitations under NAICS 238220 include US Army Corps of Engineers, Naval Facilities Engineering Command, GSA Public Buildings Service, Department of Veterans Affairs, Department of Defense. Tracking these buyers on WinAContract and drafting responses in GovCon is the fastest way to build a pipeline under this code.
Is NAICS 238220 eligible for small-business set-asides?
Yes. Solicitations under NAICS 238220 commonly use Small Business, 8(a), HUBZone, SDVOSB. If your firm holds a matching socioeconomic certification, you can compete on set-aside opportunities where large businesses are excluded — typically a far less crowded field.
What is the typical contract value for NAICS 238220?
Federal awards under NAICS 238220 typically range $250K - $25M per award. Actual values vary widely by agency, scope, and contract vehicle — for example, individual IDIQ task orders versus standalone definitive contracts.
What NAICS codes are related to 238220?
Closely related codes include 238210 (238210 · Electrical Contractors and Other Wiring Installation Contractors), 236220 (236220 · Commercial and Institutional Building Construction), 238910 (238910 · Specialty Trade Contractors). Registering in SAM.gov under every code that fits your capabilities widens the set of opportunities you'll match.
Related NAICS codes
Bidding on a NAICS 238220 opportunity?
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