The U.S. Coast Guard requires a contractor to provide commercial cleaning and renewal of a CAT SSDG heat exchanger, including on-site labor, pickup, delivery, disassembly, cleaning, and replacement of gaskets, seals, and o-rings. All work must be performed on-site at USCG Base Charleston in North Charleston, SC. The planned period of performance is from July 1, 2026, to July 7, 2026. This is a firm-fixed-price contract, 100% set aside for small businesses under NAICS code 336611. Award will be based on the lowest evaluated price among offers that pass technical capability and past performance evaluations.