NAICS directory · Specialty Trade Contractors (238)
NAICS 238220 — Plumbing, Heating, and Air-Conditioning Contractors
Mechanical systems — plumbing, piping, HVAC installation and retrofit, controls, and service work on buildings and central plants.
- SBA size standard
- $19.0M average annual receipts (13 CFR § 121.201, verified June 2026)
- Why the standard matters
- If your average annual receipts are under the standard, you can compete for small-business set-asides under this code — including 8(a), HUBZone, SDVOSB, and WOSB solicitations when your firm holds the certification.
- Open in our feed
- 112 open federal opportunities under 238220 right now — pulled from SAM.gov, updated hourly.
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More codes in Specialty Trade Contractors (238)
- 238110 · Poured Concrete Foundation and Structure Contractors
- 238120 · Structural Steel and Precast Concrete Contractors
- 238130 · Framing Contractors
- 238140 · Masonry Contractors
- 238150 · Glass and Glazing Contractors
- 238160 · Roofing Contractors
- 238170 · Siding Contractors
- 238190 · Other Foundation, Structure, and Building Exterior Contractors
- 238210 · Electrical Contractors and Other Wiring Installation Contractors
- 238290 · Other Building Equipment Contractors
- 238310 · Drywall and Insulation Contractors
- 238320 · Painting and Wall Covering Contractors
- 238330 · Flooring Contractors
- 238340 · Tile and Terrazzo Contractors
- 238350 · Finish Carpentry Contractors
- 238390 · Other Building Finishing Contractors
- 238910 · Site Preparation Contractors
- 238990 · All Other Specialty Trade Contractors