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HomeBrowseNAICS238220
NAICS238220Sector 23

Plumbing, Heating, and Air-Conditioning Contractors

Installing plumbing, heating, and air-conditioning equipment in buildings. Find active federal and state plumbing, heating, and air-conditioning contractors contracts — AI-scored against your profile across SAM.gov and 200+ portals.

238220
NAICS Code
$750K
Avg Contract Value
Construction
Sector
5 agencies
Top Buyers

Top Federal Buyers for NAICS 238220

These agencies are the largest buyers of plumbing, heating, and air-conditioning contractors services and products in the federal government. Each awards contracts under NAICS 238220 regularly — build relationships with their small business offices first.

GSA
VA
DoD
Army Corps
Federal Buildings

How to Win NAICS 238220 Contracts

1
Register NAICS 238220 in SAM.gov

Add NAICS 238220 to your SAM.gov profile immediately if it accurately reflects your capabilities. Contracting officers search SAM.gov by NAICS code when issuing sole-source awards — if you're not registered, you're invisible to this channel.

2
Target the right agencies

Focus on the top buyers listed above. Each has a small business office that issues capability briefing appointments. A 30-minute briefing with a contracting officer who knows your firm is worth more than 10 cold proposals.

3
Pursue relevant certifications

8(a), HUBZone, SDVOSB, and WOSB certifications create set-aside opportunities in NAICS 238220. Each certification reduces your competition pool dramatically and adds sole-source contract eligibility up to $4.5M.

4
Respond to Sources Sought notices

Before formal solicitations post, agencies publish Sources Sought notices to gauge market interest. Responding positions you as a known vendor before the competition begins — and your response may shape the final solicitation's requirements.

Monitor and respond fast

Set up real-time alerts for NAICS 238220. The first contractors to engage with a solicitation — attending industry days, submitting Q&A questions, contacting the contracting officer — win at significantly higher rates than those who respond at the last minute.

Related Search Terms

HVAC contractorplumbing contractorheating systemsair conditioningmechanical contractornaics 238220 contractsnaics 238220 governmentnaics 238220 federalnaics 238220 set aside

Frequently Asked Questions

What is NAICS code 238220?

NAICS 238220 covers plumbing, heating, and air-conditioning contractors. Installing plumbing, heating, and air-conditioning equipment in buildings. It is classified under the Construction sector (NAICS 23xx) in the North American Industry Classification System.

Who are the biggest buyers for NAICS 238220?

The top federal buyers for NAICS 238220 include GSA, VA, DoD, and others. Each agency has a small business office that actively seeks qualified vendors in this classification.

What is the average contract size for NAICS 238220?

The average government contract value for NAICS 238220 is $750K. Individual contracts range from micro-purchases under $25,000 to multi-year IDIQs worth hundreds of millions depending on the agency and scope.

Do I need to register NAICS 238220 in SAM.gov?

Yes — if you want to compete for or receive sole-source awards under NAICS 238220, you must have it registered in your SAM.gov entity profile. Contracting officers use SAM.gov NAICS code searches to find vendors for awards below the simplified acquisition threshold.

Related NAICS Codes