NAICS Code
Plumbing, Heating, and Air-Conditioning Contractors
Specialty trade contractors for plumbing, HVAC, and refrigeration systems.
SBA Small-Business Cap
$19 million in average annual receipts
If your company is at or below this cap, you qualify as a small business under NAICS 238220 and can pursue set-aside contracts.
Example businesses
- Plumbers
- HVAC contractors
- Mechanical contractors
Are you a small business under NAICS 238220?
SBA cap for this code: $19 million in average annual receipts.
Enter your average annual revenue (in millions) above to see if you qualify.
You qualify under NAICS 238220 — here’s the path to your first contract
- 1
Register on SAM.gov
Get your UEI and complete entity registration so you’re eligible to receive federal contracts.
Read the SAM.gov registration guide → - 2
Pursue set-aside certifications
Apply for 8(a), HUBZone, WOSB, or SDVOSB certifications you may qualify for — these unlock preferential set-aside contracts.
Compare small-business certifications → - 3
Find and bid on opportunities
Search SAM.gov for solicitations under NAICS 238220, and consider an end-to-end partner like SLED.AI to handle opportunity matching, proposal writing, and submission.
Talk to SLED.AI →
Related NAICS codes in Construction
- 236115
New Single-Family Housing Construction (except For-Sale Builders)
Cap: $45 million in average annual receipts
- 236116
New Multifamily Housing Construction (except For-Sale Builders)
Cap: $45 million in average annual receipts
- 236117
New Housing For-Sale Builders
Cap: $45 million in average annual receipts
- 236118
Residential Remodelers
Cap: $45 million in average annual receipts
For an authoritative check before submitting a bid, verify against the current SBA Table of Size Standards.