Deaerator (DA) and Condensate System Upgrades

The Port of Seattle is requesting bids on deaerator and condensate system upgrades at Seattle-Tacoma International Airport (STIA), including replacement of existing tanks, associated electrical and controls equipment, piping, and removal of obsolete air compressors and air handlers in the Central Mechanical Plant boiler room, with bids due August 19, 2026 at 2:00 p.m. A 5% Women and Minority Business Enterprise (WMBE) utilization goal applies, and an Apprentice Utilization Requirement of 15% of total labor hours is mandatory.

Work will be performed in phases to minimize downtime. The existing Equipment Mezzanine will be removed and replaced in coordination with phased tank removal and reinstallation. Bidders must be Washington-registered contractors in good standing and must comply with prevailing wage and apprenticeship requirements. A Project Labor Agreement applies to this contract.

The Port of Seattle's Engineer's estimate ranges from $6.25 million to $7.5 million. Substantial completion is required within 820 calendar days from the Contract Execution Date. Bid security equal to five percent of the total bid amount is required at submission. The successful bidder must provide Performance and Payment Bonds in amounts equal to the full Contract Sum within ten days of receiving the Notice of Intent to Award.

A hybrid pre-bid meeting and in-person site tour will be held July 30, 2026 at 10:00 a.m. at STIA, with virtual attendance available via Microsoft Teams. Bids must be submitted electronically to const-proposal@portseattle.org. Public bid opening is August 19, 2026 at 3:00 p.m. via video conferencing.