What York Flashings does

York Flashings, LLC is a US-based manufacturer of flexible flashing and moisture-management systems for building envelopes. Founded in 1935 and headquartered at 43 Community Drive, Sanford, Maine, the company operates in the construction-materials sector with a headcount in the 11-50 range. Its product portfolio is anchored by through-wall flashings available in multiple material formats: stainless steel (Multi-Flash SS, Flash-Vent SS, York 304/316 SA, YorkShield 304 SS), copper (Multi-Flash 500, Flash-Vent Copper, YorkShield 106 HP/PT), asphalt membranes (Home-Seal, York-Seal), self-adhering membranes (Max-Seal, Flexo-Flash, Flash-Vent Max, Wicked Good Flashing), vinyl/PVC flashing (Wasco-Seal Plus, YorkShield Vinyl), and supporting accessories such as SS termination bars, corners/end dams, weep vents (Weep-Armor, Weep-Net), cavity drainage components (AirSill flashing receiver), sealants (UniverSeal US-100), and the No-Bow Termination Strip and Termination Bar Extender. The technology centers on prefabricated metal and membrane flashing engineered for compatibility with modern air barriers and continuous insulation in cavity wall assemblies, with detailed HPD, LEED, SDS, 3-part CSI specifications, and 2D/3D CAD details per product.

The company sells primarily through a specification-driven B2B go-to-market: architects and specifiers designate York products in construction documents, after which contractors procure through direct inquiry, sample request, and an online catalog. Pricing is not publicly disclosed and is quote-based per project; the company distributes domestically and selectively internationally. Customer segments span commercial construction (offices, retail, institutional facilities), institutional construction (educational, healthcare, government), municipal projects, and residential construction. Technical marketing channels include AIA HSW and GBCI continuing-education courses, tradeshows, newsletter/email, and LinkedIn.

In January 2026, York Flashings was acquired by USMBP (US Masonry and Building Products), a Kinderhook Industries-backed platform that also owns Cheney, Mustang Metal, and Heckmann Building Products. The deal represented USMBP's third strategic acquisition since the PE firm's initial investment in July 2024. A financing arrangement with Kayne Anderson Private Credit and Twin Brook Capital Partners was put in place around the same date. Post-transaction, York operates as a brand within the USMBP portfolio with Craig Wetmore serving as President.

Name

York Flashings

Legal name

York Flashings, LLC

Website

https://yorkflashings.com

Company type

Private

Founded year

1935

Operating status

Operating

Headcount range

11–50 employees

Short description

York Flashings manufactures flexible flashing and moisture-management systems (stainless steel, copper, self-adhering membranes, accessories) for commercial, institutional, municipal, and residential building envelopes. Founded 1935, Sanford, Maine; owned by USMBP/Kinderhook since January 2026.

Ownership category

akta.pro rank

Product category

Building Envelope Flashing & Moisture Management

NAICS

Plastics Packaging Materials and Unlaminated Film and Sheet Manufacturing (32611)

SIC

Miscellaneous Fabricated Metal Products (3490), Unsupported Plastics Film & Sheet (3081)

akta.pro primary industry

Flashing, Edge Metal & Roof Accessories (IMADAFAJ)

akta.pro secondary industries

Sheet Metal & Flashing Works (Gutters, Copings, Edge Metal, Downspouts) (IMAFAMAE), Skylight & Roof Penetration Flashing (Exterior) (HSAPAKAJ)

Keywords

• Through-wall flashing
• Building envelope products
• Moisture management systems
• Cavity wall flashing
• Construction accessories

Headquarters

HQ city

Sanford

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Marketing or Sales, Technology or R&D

Revenue model

1. Building Materials Sales: Sale of flashing products, moisture management systems, and accessories to commercial, institutional, and residential construction markets. Products are specified by architects and used by contractors during building envelope construction.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels6 records

Core offering

York Flashings manufactures flexible flashing and moisture management systems for building envelopes, specializing in transition membranes and through-wall flashings. Its product portfolio spans stainless steel and copper flashings, self-adhering membranes, asphalt membranes, vinyl/PVC flashing, cavity drainage components, and prefabricated flashing accessories, sold to commercial, institutional, and residential construction markets.

Product overview

York Flashings is a manufacturer of flexible flashing and moisture management systems for the commercial, institutional, and residential construction markets. Founded in 1935 and headquartered in Sanford, Maine, the company specializes in through-wall flashings and transition membranes. The product portfolio centers on metal flashing products (stainless steel and copper), self-adhering membranes, asphalt membranes, and vinyl/PVC flashing, supported by a comprehensive range of accessories including termination bars, weep vents, corners, and end dams. The core product lines include Multi-Flash SS and Flash-Vent SS (stainless steel), Multi-Flash 500 (copper), York 304/316 SA (self-adhering stainless), Home-Seal and York-Seal (asphalt membrane), Max-Seal and Flexo-Flash (self-adhering membranes), Weep-Armor and Weep-Net (cavity drainage), and AirSill (flashing receivers). Accessories like the T-96 Termination Bar, SS Termination Bar, No-Bow Termination Strip, Termination Bar Extender, and York-Wrap round out the system for complete moisture management solutions. The company was acquired by USMBP (US Masonry and Building Products) in January 2026 as part of a portfolio strategy alongside existing brands Cheney, Mustang Metal, and Heckmann Building Products.

Differentiator

Problem solved

Functional benefit

Products and services

• Multi-Flash SS Stainless steel through-wall flashing product designed for moisture management in cavity wall construction. Available in 304 and 316 stainless steel grades for commercial and residential building envelope applications.
• Flash-Vent SS Stainless steel flashing with ventilation properties for cavity wall applications. Provides moisture escape routes while maintaining water resistance.
• Flash-Vent SA SS Self-adhering stainless steel flashing with ventilation capabilities for simplified installation in cavity wall construction.
• York 304 SA / York 316 SA Self-adhering stainless steel flashing membranes for through-wall and transition applications. Type 304 and 316 grades available for varying corrosion resistance requirements.
• YorkShield 304 SS Stainless steel flashing shield for foundation and below-grade applications. Provides termite shielding and moisture protection.
• Multi-Flash 500 Copper through-wall flashing for high-durability applications in commercial and residential construction.
• Multi-Flash 500 SA Self-adhering copper flashing membrane combining copper durability with simplified installation.
• Flash-Vent (Copper) Copper flashing with integrated ventilation for moisture management in copper-clad construction.
• YorkShield 106 HP High-performance copper flashing for foundation and critical moisture areas.
• YorkShield 106 PT Copper flashing with termite shielding capabilities for foundation and below-grade applications.
• Home-Seal Asphalt-based membrane flashing for residential applications, providing waterproofing at critical junctions.
• York-Seal Asphalt membrane flashing for residential and light commercial through-wall applications.
• Max-Seal Flashing system designed specifically for door and window installations to prevent water infiltration at perimeters.
• Flexo-Flash Flexible self-adhering membrane flashing for irregular shapes and complex detailing.
• Flash-Vent Max Self-adhering flashing membrane with ventilation for maximum moisture protection.
• Wicked Good Flashing Self-adhering flashing membrane designed for residential applications with air barrier transition compatibility.
• Wasco-Seal Plus Vinyl-based flashing product for window and door applications, providing cost-effective moisture protection.
• YorkShield Vinyl Vinyl flashing shield for below-grade and foundation applications.
• UniverSeal US-100 Joint sealant compatible with York's flashing products for creating watertight terminations.
• Weep-Armor Masonry weep vent providing cavity drainage and moisture escape in brick and stone veneer applications.
• Weep-Net Mesh weep vent system for cavity wall drainage and moisture management.
• AirSill Aluminum flashing receiver system for storefront and curtain wall applications, providing air seal and drainage plane integration.
• SS Corners / End Dams Prefabricated stainless steel corners and end dams for through-wall flashing terminations. Made of 26 gauge 304 stainless steel, spot-welded and soldered.
• SS Drip Edge & Corners Stainless steel drip edges and corners for directing water away from flashing systems.
• SS Termination Bar 26-gauge stainless steel termination bar for securing flashing at terminations. Pre-drilled with holes 8 inches on center with top sealant lip.
• SS Weep Vents Corrosion-resistant stainless steel weep vents for masonry cavity wall drainage.
• Termination Bar (T-96) Rigid thermoplastic termination bar made from 100% recycled material for supporting vertical flashing at termination points. Non-corrosive, UV resistant, rot-resistant, and non-conductive.
• YorkWrap Non-adhesive polymeric isolation tape made of cross-woven polyethylene designed to isolate ACQ pressure-treated lumber from galvanized metals and prevent corrosion. Also used for deck joist protection and frost protection below-grade.
• Termination Bar Extender Prefabricated thermally broken flashing extender that simplifies complex flashing details at corners and end dams when flashing is installed through insulation.
• No-Bow Termination Strip Self-adhering termination strip with butyl adhesive designed as a direct replacement for traditional termination bars. Flexible design prevents bowing and ensures watertight bond against substrates.

Quantifiable outcome

• Leader in commercial and residential flashing industry since 1935

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Hohmann & Barnard: Hohmann & Barnard is a long-established US manufacturer of masonry accessories, including through-wall flashings, weeps, and cavity wall drainage components. It is the most direct comparable to York's stainless steel and copper flashing lines, serving the same architect/specifier and masonry contractor base.
• MFM Building Products: MFM Building Products manufactures self-adhering waterproofing membranes, flashings, and construction tapes for residential and commercial building envelope applications. Its product range closely overlaps York's Flexo-Flash, Home-Seal, and Wicked Good Flashing self-adhering membrane lines.
• Advanced Building Products: Advanced Building Products is a US manufacturer of building envelope accessories including through-wall flashings, drainage mats, mortar deflection, and cavity wall components. The product portfolio and specification-driven distribution model closely mirror York's.
• Mortar Net Solutions (MTI): Mortar Net (MTI) specializes in cavity wall drainage solutions, weep vents, and moisture management products for masonry cavity walls. It directly overlaps with York's Flash-Vent and Weep-Armor/Weep-Net product lines in the cavity drainage category.
• Wire-Bond: Wire-Bond manufactures masonry wall reinforcement, anchors, and flashing accessories, including through-wall flashings and cavity wall drainage components. It targets the same specifier and masonry contractor audience as York.
• PROSOCO: PROSOCO manufactures masonry and building envelope products including sealers, water repellents, and air and water-resistive barrier components. It is comparable to York's commercial envelope moisture management positioning and targets the same architectural specification channel.
• Sandell Manufacturing Solutions: Sandell Manufacturing Solutions produces sheet metal accessories for masonry and stucco construction, including through-wall flashings, weeps, and ventilation products. It directly overlaps with York's stainless steel flashing, end dams, and corner accessory product lines.

Broad incumbents

• Tremco (RPM International): Tremco, part of RPM International, offers a broad building envelope portfolio spanning air barriers, waterproofing, and flashing systems. It competes with York in commercial through-wall flashing and air barrier transition applications but as part of a much larger integrated system offering.
• Carlisle Construction Materials: Carlisle Construction Materials is a large US manufacturer of roofing, waterproofing, and building envelope systems. Its self-adhered membranes and flashing accessories overlap with York's membrane and flashing product lines, but Carlisle operates at far greater scale and breadth.
• GCP Applied Technologies (Sika): GCP Applied Technologies, now part of Sika, produces specialty construction chemicals and building envelope solutions including waterproofing and flashing. It competes with York in commercial envelope specifications but offers a much wider product portfolio.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/york-manufacturing-inc
• Facebookfacebook.com/profile.php

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds1 record

Investors2 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about York Flashings