# Cambridge OpenGov #COC-CIFB-FY27-31196FSB

689 Mass Ave Roofing Replacement and Building-Envelope Repairs

**Posted:** September 17, 2026
**Respond By:** October 08, 2026
**Identifier:** COC-CIFB-FY27-31196FSB
**NAICS:** 238160, 238190, 238220, 562910

The City of Cambridge is seeking trade sub-bids for roof replacement and related building-envelope repairs at 689 Mass Ave.
- **Buyer:** City of Cambridge, Purchasing; Liz Unger is identified as the Purchasing Director. The project references design documents by CambridgeSeven and ARUP.
- **Main work:** Replace roofing at roof areas A, B, C, D, and F; Roof E is otherwise identified as out of scope. The assembly includes an air/vapor retarder, insulation rated at least R-30, tapered insulation where required, cover board, and fully adhered 60-mil EPDM membrane. Work also includes roof drainage, copper flashings and scuppers, edge flashings, walkway pads, equipment supports, safety railings, a roof ladder, and penthouse door and hatch work.
- **Sub-bid trades:** Waterproofing, damp-proofing and caulking; roofing and flashing; and plumbing. Bid-tab totals include Beacon Waterproofing & Restoration, Inc. ($30,240), P.J. Spillane Company, Inc. ($26,300), G.V.W., Inc. ($45,000), and TWC Operations, LLC ($27,500) for waterproofing; almar, llc ($597,000), Greenwood Industries, LLC ($467,000), Titan Roofing Inc. ($523,453), Emmaty, Inc. ($604,682), and The Aulson Company, INC. ($581,750) for roofing; and Araujo Bros Plumbing & Heating ($9,000), Robert W. Irvine & Sons, Inc. - WBE ($12,440), Citywright, LLC ($15,040), and Stallion Plumbing, Heating & Cooling ($17,100) for plumbing. Some bids carry general-contractor-use restrictions. American Women Foundation also appears on the tab sheet, but its bids were marked not considered.
- **OEM/product named:** **Jandris Block** is specified for architectural ground-face CMU, part number 2508G. No roofing membrane manufacturer or other OEM is named.
- **Specified quantities:** One 6-inch cast-iron drain at Roof A; one 4-inch cast-iron drain at Roof D; individual replacement downspouts DS-1, DS-2, and DS-3; individual replacement scuppers SC-1 and SC-2; and one new roof ladder and penthouse steel door assembly. Unit-price work includes 500 CF of concrete-deck repairs, 100 SF of supplemental insulation, and 50 BF of wood-deck repair. Quantities for most other roofing components are not specified.
- **Notable requirements:** Coordinate work with the owner because the building remains operational. Impacted asbestos-containing materials must be abated by a Massachusetts-licensed asbestos abatement contractor before disturbance; lead-painted components are also identified. The project documents call for MBE participation efforts and compliance with Cambridge workforce, responsible-employer, and construction-safety requirements. Roof drains must be inspected and cleared, and rooftop equipment must be coordinated and maintained at the specified clearance above the new membrane.
- **Other named bidding firms:** American Women Foundation, Beacon Waterproofing & Restoration, Inc., P.J. Spillane Company, Inc., G.V.W., Inc., TWC Operations, LLC, almar, llc, Greenwood Industries, LLC, Titan Roofing Inc., Emmaty, Inc., The Aulson Company, INC., Araujo Bros Plumbing & Heating, Robert W. Irvine & Sons, Inc. - WBE, Citywright, LLC, and Stallion Plumbing, Heating & Cooling.

### Description

The City of Cambridge is seeking filed sub-bids for roof replacement and minor envelope repairs at 689 Mass Ave in Cambridge, Massachusetts. Filed sub-bid categories are waterproofing, damp-proofing and caulking; roofing and flashing; and plumbing. Work includes removing existing roofing assemblies and installing a new roof system and related accessories, with roof drain and other associated work described in the project documents. Bids were to be submitted electronically through the OpenGov Procurement Portal by October 8, 2026 at 2:00 p.m.

[View original listing](https://procurement.opengov.com/portal/cambridgema/projects/302331)