Replacement Rooftop HVAC Units for Northside Wastewater Treatment Plant

The City of Tulsa is seeking a qualified HVAC contractor to replace two rooftop packaged HVAC units (one 4‑ton and one 3‑ton) at the Northside Wastewater Treatment Plant. The contract includes removal of existing units, disposal, delivery of new Trane‑type units (or equivalents), full installation, crane/rigging services, electrical and duct modifications, testing, training, and a one‑year workmanship warranty. The work must be performed on‑site in Tulsa, OK, and the contractor must provide corrosion‑protected equipment suitable for hydrogen sulfide environments, as well as all required insurance and references. • Two rooftop HVAC packages (4‑ton & 3‑ton) with specific performance and corrosion‑resistant requirements. • Full scope: removal, disposal, delivery, installation, commissioning, training, and a one‑year warranty. • Mandatory pre‑bid conference on 23 Oct 2025; sealed bids due by 5 Nov 2025. • Contract length 1‑year with up to four optional extensions; total project value expected around $45‑$55 k based on lowest bids. • Contractor must be a registered City of Tulsa vendor, carry $1 M general liability and auto liability insurance, and provide two references.