HVAC Replacement at Marshall Street School

This contract concerns the complete replacement of the heating, ventilation, and air‑conditioning (HVAC) systems at Marshall Street School, a public K‑12 facility in Washington County, Maryland. Three competitive bids were received: Warner Construction (base bid $3,885,000), Waynesboro Construction (base bid $4,228,000), and Callas Contractors, LLC (base bid $4,535,000). The award was made to Callas Contractors, LLC. The bid tabulation also includes unit‑price items for various ball and high‑performance butterfly valves, reflecting Davis‑Bacon prevailing‑wage compliance and a required 5 % bid bond. The procurement was conducted through the Washington County Public Schools Purchasing Department using an open competition process. • Scope: Full HVAC system replacement for a school building. • Financials: Base‑bid totals range from $3.9 M to $4.5 M; awarded contract value approx. $4.5 M. • Requirements: Davis‑Bacon wage rates, 5 % bid bond, bid affidavit, and acknowledgment of addenda.