This is a Sources‑Sought notice for a forthcoming Indefinite Delivery/Indefinite Quantity (IDIQ) contract (FA5682‑SABER) to provide multi‑trade construction and engineering services at Aviano Air Base, Italy. The contract will be firm‑fixed‑price, with a ceiling of US $9.9 million and a minimum guaranteed award of US $2,500. Task orders will range from $2,500 to $250,000, typically $50‑100 k, and will cover demolition, hazardous‑material abatement, architectural, civil, structural, electrical, plumbing, HVAC, fire‑protection, and related work. The period of performance is five years (June 1 2027 – Nov 30 2032). Respondents must be SAM‑registered, possess the appropriate SOA OG01 certification, and be able to provide a full suite of design, construction, quality‑control, and warranty support. The solicitation does not constitute a request for proposals; it seeks market input to shape the final SOW.