Air Source Heat Pump Conversion

The Middleborough Housing Authority is seeking bidders to convert the heating system at the Nemasket Apartments (Unit 667‑1) to an all‑electric air‑source heat‑pump solution. The scope includes demolition of existing fossil‑fuel HVAC and plumbing, installation of electric water heaters, air‑source heat‑pump units, and related electrical service upgrades. The project is estimated at $1.16 M and requires compliance with Massachusetts prevailing‑wage schedules, as well as minority‑business participation benchmarks. Bids are submitted electronically via biddocs.com, with a mandatory sub‑bid deadline for plumbing, HVAC, and electrical trades on 09/08/2026 and a general‑bid deadline on 09/29/2026. A pre‑bid conference/site visit is scheduled for 08/27/2026 (optional). • Required trades: Plumbing, HVAC/Mechanical, Electrical (DCAMM‑certified). • Mandatory compliance: Prevailing‑wage schedule, 5.2 % MBE, 7.4 % WBE, 3 % VBE participation. • Project location: 6 Hale Avenue, Middleborough, MA 02346. • Estimated construction cost: $1,164,142.