City of Seattle City Hall (SCH) Roof and Windows Replacement Bid PW#2026-011
City of SeattleCity · Seattle, WA- Due
- Sep 23, 2026
- Deadline passed
- Posted
- Aug 26, 2026
- Primary contact
- Zain Aldahlaki
- (206) 735-8730
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Summary
The City of Seattle is soliciting bids for project PW#2026-011 involving reroofing and building envelope improvements at Seattle City Hall (600 4th Ave).
The scope of work includes green roof replacement, waterproofing, roof drainage repairs, curtain wall window panels replacement, and the installation of fall protection and bird deterrent systems. The engineer's estimate for the base bid is $4,552,000.00, with four bid alternates covering surface applied glaze, waterproof membrane augmentation (RT-3), and new PVC roofing membranes (RT-4 and RT-5). Bids are due by September 23, 2026, at 700 5th Ave, Seattle, WA. A notice of interest is due by September 18, 2026.
- Submit to
- 700 5th Ave, Seattle, WA, 98101
- Scope location
- Seattle, WA
Questions about this BID
How do I respond to this Bid from City of Seattle?
Review the full solicitation document for submission requirements, evaluation criteria, and deadlines. The submission deadline is September 23, 2026. Submissions should be delivered to: 700 5th Ave, Seattle, WA, 98101. For questions, contact Zain Aldahlaki.
Can small businesses or minority-owned firms bid on this Bid?
Most government agencies, including City of Seattle in WA, encourage participation from small businesses, minority-owned, women-owned, and disadvantaged business enterprises (MBE/WBE/DBE). Check the full solicitation for any small business participation goals.
What happens after the Bid submission deadline?
After the deadline, the issuing agency reviews all submissions against the stated evaluation criteria. This typically includes a compliance check, technical evaluation, cost analysis, and may involve oral presentations with shortlisted vendors.
Can I ask questions about this solicitation before submitting?
Yes, most solicitations allow vendors to submit questions during a designated period. The primary contact is Zain Aldahlaki at (206) 735-8730. Questions and answers are typically shared with all prospective bidders.
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Where can I find more RFPs from City of Seattle?
All active and historical solicitations from City of Seattle are tracked and searchable. As a city agency, City of Seattle regularly publishes solicitations. Visit the agency profile to see current open bids, past contracts, vendor relationships, and decision-maker contacts.
What documents are required to bid on this Bid?
Requirements vary by solicitation, but common documents include a technical proposal, cost/price proposal, proof of insurance, relevant certifications, past performance references, and any forms specified in the solicitation. Review the full document from City of Seattle for the complete list.
What is the scope of this project?
This solicitation defines a specific project scope. The scope covers the following locations: Seattle, WA. Review the full solicitation for detailed scope requirements.