Building 63 Envelope and HVAC Renovation

The USDA Agricultural Research Service is requesting quotations for Building 63 Envelope and HVAC Renovation at the USDA Subtropical Horticulture Research Station in Coral Gables, Florida (RFQ 12639526Q0232), with quotations due August 19, 2026 at 1:00 p.m. ET. This is a Total Small Business Set-Aside under NAICS 238220 (Plumbing, Heating, and Air-Conditioning Contractors) with a small business size standard of $19 million; only entities meeting SBA small business criteria for this classification are eligible.

The scope addresses condensation in ductwork and elevated humidity levels (70% or higher) in approximately 6,000 square feet of lab and office space through renovation of the roof, HVAC system (one air-cooled chiller, associated pumps, and two variable air volume air handling units), Building Automation System, and chiller replacement. Design and retro-commissioning with TAB services were provided by A&E firm Clark Nexsen. The contractor must begin work within 10 calendar days of notice to proceed and complete all work within 240 days.

The estimated project magnitude ranges between $1 million and $5 million. Performance and payment bonds are required; bid bond is not required. Federal construction wage rates for Miami-Dade County apply. Monthly progress payments are authorized, with retainage limited to 10 percent if satisfactory progress is not achieved.

Evaluation prioritizes highest technical quality (relevant HVAC experience and detailed technical approach) and past performance at fair and reasonable pricing, without tradeoffs between factors. A mandatory site visit is scheduled August 4, 2026 at 9:00 a.m. ET at 13601 Old Cutler Road, Coral Gables, Florida 33158. Questions are due August 11, 2026 at 1:00 p.m. ET. Quotations must include detailed pricing breakdowns, demonstration of relevant experience, past performance information, and signed amendments. Submit to james.g.roloff@usda.gov.