Lowe_replace two air handlers

The Department of the Interior National Park Service Northeast Region is procuring replacement of two air handling units (AHU-2 and AHU-4) at the Boott Mill #6 facility within the Lowell National Historical Park in Massachusetts. This construction project involves removing existing 1993 Trane air handlers with capacities of 3,800 CFM and 10,500 CFM that serve approximately 12,000 square feet of museum space across first and second floors, and installing new high-energy efficient units with MERV 13 filters that connect to existing automated controls and the building's four-pipe heating and cooling system. Contractors must demonstrate at least five years of experience in historical structure restoration and provide stamped engineered documents with calculations for the new air handlers. The source selection will use a Lowest Price Technically Acceptable process, evaluating experience, past performance, and price with all non-price factors weighted equally. A mandatory site visit was scheduled for September 3, 2025, and the proposal submission deadline has been extended to 1200 EDT on September 16, 2025.

This opportunity is set aside for total small business participation with an estimated value between $100,000 and $250,000. No current incumbents or contractors are specifically identified in the solicitation materials. The performance period allows 10 calendar days to commence work and 320 calendar days to complete the project after receiving notice to proceed, with work restricted to normal business hours (7:30 am to 4:00 pm, Monday through Friday) and specific blackout dates including July 25-27, 2025. The work location is at 115 John Street, Lowell, Massachusetts, within the active museum facility that will remain operational during construction. The contractor must adhere to strict historical preservation guidelines, including limitations on fastening methods to protect virgin heart pine timber beams and exposed pine plank ceilings, and must provide their own portable facilities due to limited site access and courtyard parking restrictions.