This Subcontract opportunity from California was posted on September 21, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Waterproofing, Roofing, and Sheet Metal Flashing

Closed

State & Local

Submission Closed10/15/2026, 02:00:00 PM PDT

Contract Overview

Solicitation details, issuing organization, response deadlines, documents, and interested companies for this government contract opportunity.

Active Opportunities Like This One

NAICS: 238160

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SLED

Minor Roofing and Rainwater SystemsThis subcontract for Minor Roofing and Rainwater Systems involves performing specialized roofing repairs and rainwater system installations for prime contractors on City of West Sacramento facility projects. The scope of work includes the removal of existing aluminum gutters and downspouts, replacement of the roof drip edge, and general roofing repairs to ensure all surfaces are water-tight. The contractor is responsible for installing new aluminum gutters and downspouts to deliver a fully functional system. The project falls under NAICS code 238160 and requires strict adherence to California prevailing wage rates. Interested parties must submit their responses by the deadline of December 1, 2026. The contract is managed through the Capital Projects Construction agency for the state of California.

Capital Projects - Construction

POSTED

DEADLINE

Carport Repair - 920 West Capitol Ave

Solicitation # 26-098-ITB

The City of West Sacramento has issued solicitation 26-098-ITB for the repair of a commercial carport located at 920 West Capitol Ave. The scope of work encompasses demolition of wood soffit trim, rafter outriggers, fascia, and aluminum gutters, followed by carpentry work to replace outriggers, wood ply members, and framing hardware, as well as general roofing repairs and drip edge replacement. The contractor is responsible for obtaining all necessary building permits and providing structural plans. All work must be completed within fifteen working days from the Notice to Proceed, adhering to the City of West Sacramento and Caltrans 2015 Standard Specifications. The contract will be awarded to the lowest responsive and responsible bidder. Bidders must submit their cost proposals via the OpenGov electronic pricing table and provide a technical response, a signed W-9, and a certification regarding debarment through the city's e-Procurement portal. Required security includes a bid security of at least 10 percent of the total bid price, with the successful bidder providing performance and payment bonds each equal to 100 percent of the contract price. Compliance requirements include adherence to California prevailing wage rates, registration with the Department of Industrial Relations, and strict safety standards, including California Prop 65 and the Contract Work Hours and Safety Standards Act.

Capital Projects - Construction

POSTED

DEADLINE

WAIMEA COMMUNITY CENTER RE-ROOFING AND REPAIRS

Solicitation # PR-4892

The County of Hawai'i Department of Parks and Recreation is soliciting bids for the Waimea Community Center Re-Roofing and Repairs project, identified as Job No. PR-4892. Located at 65-1260 Kawaiahe Road in Waimea, the scope of work includes the demolition of existing roofing, gutters, and downspouts, followed by the installation of new metal roofing, gutters, and downspouts. Additionally, the contractor is responsible for painting all interior and exterior surfaces of the buildings. Bids must be submitted through the OpenGov Procurement Portal by November 20, 2026. The contract will be awarded to the responsible bidder who provides a responsive bid with the lowest evaluated price, with a five percent bid adjustment available for those participating in registered apprenticeship programs for projects valued at $250,000 or more. Prospective bidders must hold a valid State of Hawai'i General Building Contractor B license and submit a written Notice of Intention to Bid ten calendar days prior to the bid opening. Furthermore, an executed and notarized Standard Qualification Questionnaire for Offerors must be submitted at least 48 hours before the bid opening. A proposal guaranty equal to five percent of the total bid amount is required, and performance and payment bonds equal to 100 percent of the contract price are mandatory for awards exceeding $50,000. Contractors must comply with ADA accessibility guidelines, NFPA 80, and current ICC IBC codes, while adhering to prevailing wage rates. A targeted hazardous material survey has identified lead-containing paint on certain drywall surfaces, requiring specific hazard control compliance during execution.

POSTED

DEADLINE

Roof Flashing and Sheet Metal WorkThis subcontract for Roof Flashing and Sheet Metal Work involves the fabrication and installation of sheet metal components and flashing for prime contractors working on Maryland Transit Administration facility projects. The primary objective is to ensure complete water tightness at all edges and penetrations in strict accordance with Section 07 62 00. The scope of work includes the delivery of installed trim as well as the provision of necessary product samples and shop drawings. The opportunity is categorized under NAICS code 238160 and was posted on November 6, 2026. Interested parties must submit their responses by the deadline of December 21, 2026, at 3:00 PM. This project is managed through the state of Maryland.

POSTED

DEADLINE

PVC Membrane Roofing InstallationThis subcontract for PVC Membrane Roofing Installation involves the installation of single-ply PVC membrane roofing systems for prime contractors working on Maryland Transit Administration facility projects. The scope of work includes the removal of existing roofing, the installation of tapered rigid insulation, and the application of the PVC membrane in accordance with Section 07 54 19 to ensure a completed, watertight roof. The selected contractor is responsible for providing a manufacturer's warranty along with essential documentation, including a Final System Assembly Letter, Guarantee Application Confirmation, and all necessary test reports. This opportunity falls under NAICS code 238160, with a response deadline set for December 21, 2026.

POSTED

DEADLINE

Metro OCC Building Roof Replacement_T-2396-0150_Date 110626

Solicitation # T-2396-0150

Solicitation T-2396-0150 is an Invitation for Bids issued by the Maryland Transit Administration for the roof replacement of the Metro OCC Building located at 301 N. Eutaw Street, Baltimore, Maryland. The scope of work includes the removal of the existing roofing system, repair of the damaged roof deck, installation of a new single-ply membrane roofing system with tapered rigid insulation, replacement of roof drains and expansion joints, and the installation of a new lightning protection system. Additionally, the project involves selective demolition, ACM abatement, and the temporary lifting or removal of mechanical equipment. The estimated contract value is between $500,001 and $1,000,000, with the award being granted to the responsible and responsive bidder offering the lowest total bid price. The contract mandates strict adherence to the 2021 International Building Code, ASCE Standard 7-16, and other industry standards. Key requirements include a 19% MBE and 1% VSBE procurement goal, the submission of a Contract Quality Control Plan and Safety Plan prior to mobilization payments, and the provision of performance and payment bonds equal to 100% of the bid price. The project utilizes an Owner Controlled Insurance Program and requires compliance with Buy America requirements and the Trafficking Victims Protection Act. Contractors must submit a progress schedule within 21 days of the Notice to Proceed and are subject to liquidated damages and termination for convenience clauses.

POSTED

DEADLINE

Exterior Ductwork Insulation and CladdingThis subcontract involves the application of thermal insulation and weather-resistant jacketing for exterior ductwork at the 187th Fighter Wing. Working for prime contractors under the Alabama State Military Department, the selected provider will install a minimum of 2-inch rigid polyisocyanurate or phenolic board insulation. To ensure durability and weatherproofing, the project requires the application of 0.016-inch stucco-embossed aluminum cladding or a UV-resistant multi-ply membrane, with all cladding sloped to prevent water ponding in accordance with UFC 3-410-01 standards. The opportunity is categorized under NAICS code 238160 and is managed by the ANG Facilities Sustainment, Restoration, Modernization Program. Interested parties must submit their responses by the deadline of November 18, 2026. The primary objective of the contract is the delivery of fully insulated and weatherproofed exterior ductwork that meets all specified military facility requirements.

ANG Facilities Sustainment, Restoration, Modernization Progr, State Military Department

POSTED

DEADLINE

EC - Meredith Field Office Roof Replace

Bureau of Reclamation

POSTED

DEADLINE

MT-YT Penstock Gatehouse Roofs

Bureau of Reclamation

POSTED

DEADLINE

DK HBR Quonset Roof Replacement

Bureau of Reclamation

POSTED

DEADLINE

DK HBR Shop Roof Replacement

Bureau of Reclamation

POSTED

DEADLINE

Commercial Roofing and WaterproofingThis commercial roofing and waterproofing subcontract involves the installation of low-slope roofing systems for prime contractors working on Maryland Department of Transportation Maryland Transit Administration facility projects. The scope of work includes the removal of existing roofing and the installation of vapor barriers, R-30 insulation, and roofing membranes in strict accordance with IBC and NRCA standards. Additionally, the contractor is responsible for installing OSHA-compliant permanent roof access, including lifeline cables, anchor points, and parapets, to ensure a watertight and energy-compliant final assembly backed by a warranty. The solicitation was posted on November 6, 2026, with a response deadline of December 17, 2026. Classified under NAICS code 238160, this opportunity is managed through the state of Maryland. Interested parties must ensure all deliverables meet the specified safety and building codes to successfully complete the project.

POSTED

1 day ago

DEADLINE

in about 1 month

AI Contract Overview

Webcor Builders is seeking a subcontractor for a project at UC Berkeley to perform waterproofing, roofing installation, and sheet metal flashing. The scope of work involves delivering a fully waterproofed and flashed roof system specifically designed to support a recreational field, including the installation of at-grade egress on the north side. Qualified bidders must hold a CSLB C-39 License to be eligible for this subcontract. The project is located in Berkeley, California, with a response deadline of October 15, 2026.

General Info

Webcor seeks C-39 licensed subcontractors for UC Berkeley roofing and waterproofing by October 15, 2026.

Agency

California → Webcor Builders

NAICS

238160 - Roofing Contractors

Place of Performance

Berkeley, CA, 94704, USA

Set-Aside

NONE

Documents

This scope was carved out of 20260918028.

The full solicitation package (1 document), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

UC Berkeley Electrified Heating & Cooling Plant Project – Increment 6: Roofing, Grading, Finishes

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Timeline

PhaseClosed

PostedSep 21

subcontract

Response DeadlineOct 15

Deadline has passed

Submission Closed

10/15/2026, 02:00:00 PM PDT

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Organization & Contact Information

AgencyCalifornia → Webcor Builders

ContactsNo contacts available

OfficeN/A

Organization / AgencyCalifornia → Webcor Builders

Office AddressN/A

ContactsNo contact information available

Full Description

Performs waterproofing, roofing installation, and sheet metal flashing for prime contractors on UC Berkeley facility projects. Installs roofing systems and flashing, including a roof designed for use as a recreational field with at-grade egress on the north side. Requires CSLB C-39 License. Delivers a fully waterproofed and flashed roof system capable of supporting a recreational field.