The 156th Wing seeks a single firm-fixed-price contract, 100% set aside for small businesses under NAICS 238220, to supply and install two 10-ton HVAC units replacing failed equipment at Bldg. 11, Muñiz Air National Guard Base, Carolina, Puerto Rico. The contractor must provide supervision, transportation, labor, materials, equipment, fuel, and quality control, with completion within 30 calendar days after contract receipt, including inspection and punch lists. A site visit is scheduled for October 28, 2026, at 9:00 AM AST, and interested parties must request attendance by 2:00 PM EST on October 27, 2026, via the specified email. Requests for information are due by 2:00 PM CT on October 31, 2026. The solicitation and associated documents are available only through SAM.gov, and offerors must be registered in SAM.