Gwinnett County Fire Stations 27 & 28 HVAC Replacement Project

This solicitation seeks qualified contractors to replace the heating, ventilation, and air‑conditioning (HVAC) systems at two Gwinnett County fire stations (27 and 28). The work includes demolition of existing equipment and concrete pads, installation of new HVAC units, ductwork, controls, and associated electrical work, all while maintaining fire‑station operations and meeting stringent work‑hour and equipment‑downtime constraints. Bidders must provide required bonds, insurance, and acknowledge the addendum modifications. • Replace HVAC equipment (furnaces, condensing units, exhaust fans, make‑up air unit) with new Trane/Mitsubishi units using R‑454B refrigerant. • Perform mechanical demolition, concrete pad construction, electrical upgrades, and integrate controls into the building management system. • Comply with work‑hour limits (8 a.m.–5 p.m., Mon‑Fri), equipment downtime ≤12 hours, and submit a sealed bid package (original + two copies) by the deadline.