IFB HVAC Systems and Donaldson Torit Dust Collection System Maintenance and Repairs, Humboldt County

The California Department of Transportation (Caltrans) Division of Procurement and Contracts is issuing an Invitation for Bid (IFB) for HVAC Systems and Donaldson Torit Dust Collection System Maintenance and Repairs at the Caltrans District 1 Materials Lab in Fortuna, California, located in Humboldt County. The procurement encompasses comprehensive maintenance and repair services on nine rooftop HVAC units and two minisplit units manufactured by Trane and Intertek, as well as one Donaldson Torit dust collection system, with the contractor required to furnish all necessary labor, tools, equipment, parts, materials, supplies, travel, and incidentals. Key deliverables and service requirements include an initial facility assessment to be completed within 21 days of notice to proceed, twelve quarterly preventative maintenance visits per year, six bi-annual dust collector servicing appointments, and both routine and non-routine repair services on an as-needed basis available outside standard business hours. Services are to be provided Monday through Friday from 7:30 a.m. to 4:00 p.m. during normal business hours, with emergency repairs available as needed. Qualified bidders must possess a current C-20 (Warm-Air Heating, Ventilating and Air-Conditioning Contractor) license from the California Contractors State Licensing Board, be registered with the Department of Industrial Relations, and comply with California State General Prevailing Wage Rates. A mandatory site inspection is scheduled for April 8, 2026, at 9:00 a.m., with written questions due by April 10, 2026, and bids due April 16, 2026, at 2:00 p.m., with bid opening at 2:30 p.m. the same day and an estimated award date of April 26, 2026.

The contract is available to certified Small Business, Minority Business, or Small Business-Public Works contractors, which receive a 5 percent bid preference, and the solicitation encourages (though does not require) participation from Disadvantaged Veteran Business Enterprises (DVBE) through a 5 percent incentive with a combined preference and incentive cap of $100,000. A Payment Bond equal to 100 percent of the contract value is required, along with insurance coverage including Commercial General Liability of $1,000,000 per occurrence/$2,000,000 aggregate, Automobile Liability of $1,000,000 combined single limit, and Workers' Compensation at statutory limits. The total bid proposal shall not exceed $461,000, with specific line items for unit pricing including the initial assessment, quarterly preventative maintenance at twelve visits, bi-annual dust collector service at six visits, and hourly rates for both routine and non-routine repairs estimated at 100 hours each, with parts, materials, supplies, fees, and permits reimbursable up to 10 percent of the subtotal based on submitted receipts with pre-approval from the Caltrans Contract Manager. The estimated contract term commences July 1, 2026, and expires June 30, 2029, for a three-year period. Subcontracting is not permitted under this agreement.