The City of St. Joseph, Missouri is soliciting a qualified contractor to perform a complete retube, insulation/refractory work, and burner retrofit on the Superior boiler at its wastewater treatment plant. The work includes demolition of existing tubes, cleaning, installation of new 2.5”×144” boiler tubes, torque‑rolling, seal welding, insulation replacement, burner removal and installation of a new high‑efficiency Oilon GP‑50 burner, associated piping, electrical controls, and optional plumbing upgrades such as a recirculation pipe, chemical injection system, and water meter. All labor, materials, equipment, and disposal are required, and the contract will be awarded on a fixed lump‑sum basis. Attendance at a mandatory pre‑bid meeting and site visit on 30 Oct 2026 is required. Proposals are due electronically by 3 p.m. on 12 Nov 2026.
• Complete boiler tube replacement (48 new tubes) and associated welding.
• Insulation and refractory work, including door insulation replacement.
• Burner removal, installation of Oilon GP‑50 high‑efficiency burner, gas train, valves, and controls.
• Optional plumbing upgrades (recirculation pipe, chemical injection, water meter, water softener).
• All demolition, waste disposal, and site cleanup included.
• Fixed‑price, lump‑sum contract; prevailing‑wage compliance if contract > $75,000.