The Michigan Air National Guard is seeking a contractor for comprehensive HVAC upgrades at Hanger 9 and Building 304, involving replacement of existing units and full system integration. The work will be performed over 365 days at Selfridge Air National Guard Base, MI 48045, while the buildings remain occupied. This is a Total Small Business Set-Aside for commercial construction services, with a firm fixed-price contract anticipated. The Invitation for Bids is planned for issuance in July. No specific budget amount is provided.