Standby Generator Maintenance & Response

The City of Mercer Island, Washington is soliciting bids on standby generator maintenance and emergency response services for twenty-four generators across the island under ITB with a September 23, 2026 deadline at 4:00 p.m., and questions due September 17 at 12:00 p.m. Eligibility is restricted to contractors registered in the MRSC Small Works Roster under the Power Production category and Generator subcategory as of the advertisement release date.

The scope encompasses preventative maintenance, testing, inspection, and repair services on twenty-four standby generators at various municipal facilities, compliant with NFPA 110 standards. Services include load bank testing, twenty-four-hour-per-day, seven-day-per-week emergency repair availability, and submission of inspection and repair reports. Work must follow City-provided task specifications and manufacturer recommendations.

The contract value is not to exceed $210,000 plus sales tax over three years, with a $70,000 annual budget cap and an engineer's estimate of $231,630. The contract term is three years with an anticipated Notice to Proceed in the week of October 5, 2026; all 2026 work must be completed by December 31, 2026. Continuation beyond the current fiscal year is contingent upon appropriation of funds.

Bidders must submit unit prices for preventative maintenance at each generator location, labor rates for regular hours, overtime, and Sunday/holiday work, a repair parts markup (estimated at 18 percent above actual cost), and cost escalation percentages for 2027 and 2028. Washington State prevailing wage rates for King County apply as of the bid submittal date. Award is based on the lowest responsive, responsible bid, with award anticipated within sixty days of opening. The contract requires 100 percent self-performance with no subcontracting permitted unless expressly approved in writing. Contractors must hold current Washington contractor licenses, workers' compensation coverage, business licenses, and provide Performance and Payment Bonds.