4T Mechanical, LLC

4T Mechanical, LLC, a service-disabled veteran-owned small disadvantaged business based in Bandera, Texas, performs HVAC and chiller repair and maintenance at federal installations as a prime contractor operating exclusively in full-and-open federal procurements — 100% of its tracked awards are non-set-aside purchase orders.

The vendor operates as a sole proprietorship and LLC under NAICS 4237 (Plumbing, Heating, and Air-Conditioning Contractors) and PSC 1680 (Maintenance, Repair, and Rebuild of Refrigeration, Air-Conditioning, and Air-Circulating Equipment). All three recent awards originate from the Air Education and Training Command at Lackland Air Force Base in San Antonio. The June 9, 2025 purchase order ($136,916) covered removal and replacement of Compressor 2 on Chiller 1, including compressor motor rebuild and reinstallation at Building 7359, completing August 29, 2025. The July 22, 2025 award ($15,577, designated Total Small Business set-aside) addressed chiller repair at the Graduation Welcome Center Building 6330, scheduled for completion October 21, 2025. The most recent purchase order (March 25, 2026, $25,350) authorized immediate-action repair of Chiller #1 (Model York) B1417 in residential barracks, servicing thirteen facilities, with completion targeted April 25, 2026.

Customer concentration is absolute — all tracked revenue derives from AETC, representing three awards with combined potential value of $178 thousand and 100% obligated. No sub-award activity is present in the source data. The vendor holds no seats on government-wide vehicles, BPAs, or agency IDIQs. This footprint reflects a small, geographically localized HVAC service provider with operational focus on base facility maintenance rather than a multi-agency program platform.