5 Open HUBZone Solicitations — NAICS 238220
Plumbing, Heating, and Air-Conditioning Contractors
5 open HUBZone solicitations are currently posted under NAICS 238220 (Plumbing, Heating, and Air-Conditioning Contractors). Over the past 12 months, agencies posted 6 solicitations, with DEPT OF DEFENSE, INTERIOR, DEPARTMENT OF THE, HOMELAND SECURITY, DEPARTMENT OF among the top buyers.
Top Buying Agencies (Last 12 Months)
- DEPT OF DEFENSE3 solicitations
- INTERIOR, DEPARTMENT OF THE2 solicitations
- HOMELAND SECURITY, DEPARTMENT OF1 solicitations
Top Award Winners (Last 12 Months)
- L 4 ENTERPRISES, INC.1 awards · $44K
Open Solicitations
See all →- Z--National Park Service - Fredericksburg and Spotsylvania National Military Park
INTERIOR, DEPARTMENT OF THEDue Sep 11, 2026
• The project involves providing all labor, supervision, materials, tools, supplies, transportation, personal protection equipment, and support equipment for the geothermal HVAC installation at Jackson Shrine Death Site PMIS 304741. • The scope of work includes minor architectural modifications to existing construction, as well as installation and testing of a geothermal HVAC system within specified parameters. • Due to the location's sensitive nature, any contractor selected must meet additional security and facilities requirements prior to contract award.
Recently Awarded (Last 90 Days)
- PROCUREMENT AND INSTALLATION SERVICES OF REVERSE OSMOSIS SYSTEM AT USCG STA CAPE CHARLES
HOMELAND SECURITY, DEPARTMENT OF→ L 4 ENTERPRISES, INC.$44K
Frequently Asked Questions
What is a HUBZone set-aside?
A HUBZone (Historically Underutilized Business Zone) set-aside is reserved for businesses located in designated HUBZone areas — typically rural, urban, or Native American lands with low income or high unemployment. HUBZone firms also receive a 10% price evaluation preference in full-and-open competition.
How do I get HUBZone certification?
Apply through the SBA's certify.sba.gov portal. Requirements: principal office must be in a HUBZone, at least 51% owned by U.S. citizens (or qualifying entities), and at least 35% of employees must reside in a HUBZone. Use the SBA's HUBZone map at maps.certify.sba.gov to verify your address qualifies.
What types of federal construction contracts are available (NAICS 23)?
Federal construction contracts (NAICS sector 23) span building construction, heavy civil engineering, and specialty trades. Major buyers include the Army Corps of Engineers, General Services Administration (GSA), Naval Facilities Engineering Command (NAVFAC), and the Department of Veterans Affairs. Contracts range from facility maintenance to large infrastructure projects.
How do I find federal contracting opportunities?
Federal contracting opportunities are posted on SAM.gov (System for Award Management). You can search by keyword, NAICS code, set-aside type, agency, and response deadline. FedOps aggregates and enriches SAM.gov data daily so you can filter and track opportunities in one place.