Terminal Parking Garage Vestibule HVAC System Design-Build - Rebid

The Kenton County Airport Board (KCAB) is soliciting design-build proposals for the Terminal Parking Garage Vestibule HVAC System replacement project at Cincinnati/Northern Kentucky International Airport (CVG). This Request for Proposal encompasses the complete design and construction of an HVAC system replacement, including installation of a new condensing boiler, air handler, condenser, air curtains at automatic doors, variable air volume (VAV) boxes for zone control on each floor, ductwork and diffusers, a new Direct Digital Control (DDC) automated logic system to replace existing pneumatic controls, and selective demolition of abandoned ducts, along with all related mechanical, electrical, plumbing, and fire-protection modifications, finish restoration, and site cleanup. Proposers must deliver design documents at 30%, 60%, 90%, and 100% design review stages, as well as as-built record drawings, and maintain passenger access through the vestibule throughout the project duration. Required qualifications include a minimum of three years of experience providing design-build services comparable to this project, with key personnel demonstrating at least four years of design-build experience. Evaluation criteria are weighted as follows: Design Builder's Experience and Qualifications (35%), Rates and Fees (20%), Project Approach, Schedule, and Phasing (25%), and Quality and Depth of Key Personnel's Experience, Expertise, and Capability (20%). A non-mandatory pre-proposal meeting and site visit will be held on Wednesday, April 22, 2026, at 10:00 am at CVG Centre Administrative Offices, 77 Comair Boulevard, Erlanger, Kentucky, with attendance limited to two persons per company for the walkthrough. Written questions must be submitted by 11:59 pm on Thursday, May 14, 2026, with answers posted no later than Wednesday, May 20, 2026, at 11:59 pm. Proposals must be received by Thursday, May 28, 2026, at 2:00 pm Eastern Time through KCAB's online bidding system, with interviews anticipated for the week of June 8, 2026, anticipated board approval on July 27, 2026, and contract implementation on August 15, 2026.

Proposals must remain valid for a minimum of 120 days from the closing date, and Kentucky resident bidders will receive preference in accordance with state law. The contract is non-discriminatory and complies with Title VI of the Civil Rights Act of 1964, ensuring equal opportunity regardless of race, color, national origin, sex, creed, age, or disability. KCAB has targeted outreach to eleven mechanical contracting firms for this rebid, indicating previous solicitation efforts. Pricing is submitted using a lump-sum format across thirteen line items, with a total project budget of $511,000 funded through CAPEX, consisting of $50,000 for design, $405,000 for construction/installation, $45,000 contingency (minimum 10%), $10,000 for force labor, and $1,000 for miscellaneous expenses; additionally, an Owner-Defined Allowance of $25,000 is provided for unforeseen site conditions or scope clarifications requiring written KCAB approval. Contractors must provide a bid bond of 10% of the proposed annual contract amount and both a performance bond and payment bond of 100% of the annual contract amount. The contract requires comprehensive insurance coverage, including commercial general liability of not less than $2,000,000 per occurrence, automobile liability insurance of $2,000,000 per accident, Kentucky workers' compensation coverage, and employer's liability insurance of $1,000,000 per accident, with KCAB named as additional insured. Monthly invoices will be paid on a net 30 basis, and the contract term extends one year post-construction completion.