Custom Metalcrafters

What Custom Metalcrafters does

Custom Metalcrafters Inc. (CMI) is a private, family-owned building envelope contractor founded in 2001 by Stephen Rosner in New York City, operating as a multi-generational firm that has completed over 100 projects across the NYC metropolitan area. The company specializes in the design, engineering, fabrication oversight, procurement, logistics, and installation of custom building enclosure and facade systems, including proprietary curtain wall systems, window wall systems, storefronts, metal rain screen panels, insulated metal panels, glass handrails, terra cotta systems, door systems, and canopies. CMI delivers its scope through an integrated single-source model in which in-house engineering produces 3D CAD drawings, thermal and acoustic modeling, structural/ASCE-7 analysis, and NYPE sign & seal certification, then oversees fabrication through vetted contract fabricators using STEP files and fabrication drawings before deploying directly-hired specialty field crews (survey, rigging, safety) for installation.

Revenue is generated through project-based contracts (fixed-price or cost-plus) with real estate developers, general contractors, construction managers, and architects, with marquee end-clients including Related Companies, L+M Development Partners, Macklowe Properties, Rubenstein Partners, Hampshire Hotels, Amneal Pharmaceuticals, and the National Urban League. The company is led by Stephen Rosner (President and founder), Bryce Rosner (Vice President of Operations), and Nathaniel Richards (Senior Director of Preconstruction, recipient of the 2021 Lee Nelson Book Award from the Association for Preservation Technology International). Field operations are supported by an owned equipment fleet and a published EMR of 0.68, indicating a track record of safety performance substantially below the industry average of 1.0.

The company's go-to-market is enterprise field sales targeting the NYC AEC ecosystem through direct developer and GC engagement, supported by a Director of Business Development and Project Executives, with marketing primarily executed through portfolio showcase on the company website and industry referrals. Recent operational extensions include a dedicated Interiors Division and Long Island industrial projects, suggesting modest scope diversification while the geographic footprint remains concentrated in the NYC metropolitan area.

Name

Custom Metalcrafters

Legal name

Custom Metalcrafters Inc.

Website

https://custommetalcrafters.com

Company type

Private

Founded year

2001

Operating status

Operating

Headcount range

11–50 employees

Short description

Custom Metalcrafters is a private, family-owned NYC building envelope contractor founded in 2001 that designs, engineers, fabricates, and installs proprietary curtain wall, window wall, and facade systems under a single-source model for commercial, residential, healthcare, hospitality, and industrial clients.

Ownership category

akta.pro rank

Product category

Building Envelope Contracting

NAICS

Metal Window and Door Manufacturing (332321), Ornamental and Architectural Metal Products Manufacturing (33232), Sheet Metal Work Manufacturing (332322)

SIC

Fabricated Structural Metal Products (3440), Sheet Metal Work (3444)

akta.pro primary industry

Sheet Metal & Flashing Works (Gutters, Copings, Edge Metal, Downspouts) (IMAFAMAE)

akta.pro secondary industries

Windows (IMADAIAC), Metal Roofing & Wall Panels (Architectural/Structural) (IMADACAG), Custom Window & Door Fabrication & Replacement (HSAPAJAI)

Keywords

• Custom metal fabrication
• Building envelope systems
• Curtain wall installation
• Architectural metalwork
• Facade engineering services

Headquarters

HQ city

Albertson

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Supply Chain, Operations, Marketing or Sales, Others

Revenue model

1. Building Envelope Construction Services: CMI generates revenue through project-based contracts for building envelope construction services, including design, fabrication, procurement, and installation of curtain wall systems, window walls, and related architectural metal and glass products. Revenue is earned through fixed-price or cost-plus construction contracts with developers, general contractors, and building owners. Single Source delivery model allows CMI to capture value across multiple project phases.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Custom Metalcrafters designs, engineers, fabricates, and installs custom metal and glass building envelope systems, including curtain wall systems, window wall systems, and custom facade systems for commercial construction projects. The firm operates as a full-service building envelope contractor offering integrated design-build capabilities from preconstruction through installation.

Product overview

Custom Metalcrafters (CMI) is a premier building envelope contractor offering a comprehensive suite of products and services for commercial and residential construction in NYC. The company operates as a single-source delivery provider with proprietary curtain wall and window wall systems as its core products. Their integrated service model combines custom system design and engineering (with 3D CAD, thermal/acoustic modeling, and NYPE sign & seal capabilities), fabrication oversight, global procurement and logistics, and directly-hired field installation crews. The product portfolio includes unitized and hybrid curtain wall systems, window wall systems, metal rain screen panels, storefront systems, glass handrails, insulated metal panels, terra cotta systems, door systems, and architectural canopies. CMI's competitive advantage lies in their proprietary system designs developed in-house, complete ownership from concept to closeout, and the ability to provide a uniquely tailored solution for each project.

Differentiator

Problem solved

Functional benefit

Products and services

• Curtain Wall Systems Custom-designed, engineered, fabricated, and installed curtain wall systems for commercial building exteriors. Provided to developers, general contractors, and architects as a turnkey building envelope solution.
• Window Wall Systems Custom window wall assemblies designed, fabricated, and installed as part of the building envelope for commercial structures. Delivered as an integrated scope of work for new construction and major renovation projects.
• Custom Metal and Glass Facade Systems Bespoke metal and glass facade systems engineered and fabricated to non-standard geometric, aesthetic, or performance specifications for commercial buildings. Targeted at projects where stock curtain wall or window wall products are insufficient.
• Preconstruction and Design-Assist Services Estimating, value engineering, and design-assist coordination services provided to architects, developers, and general contractors during the preconstruction phase of commercial building projects, supporting scope development for the envelope scope.
• Facade Engineering Services In-house structural and facade engineering services supporting the design, performance, and code compliance of curtain wall, window wall, and custom facade systems delivered by the firm.
• Custom Metal Fabrication Services In-shop custom metal fabrication of envelope components, including cutting, forming, welding, and assembly of facade elements that feed into the firm's curtain wall, window wall, and custom facade installations.
• Facade Installation Services Field installation and project management services for curtain wall, window wall, and custom facade systems on commercial construction sites, delivered as part of the firm's integrated design-build scope.

Quantifiable outcome

• EMR of 0.68 - significantly below industry average of 1.0 indicating superior safety performance
• +2 more outcomes

Named customers15 records

Segments4 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

14 partnerships are on record, tiered core and minor.

• Vetted and Certified Contract FabricatorscoreOthersCMI maintains relationships with multiple vetted and certified contract fabricators for system fabrication. Additionally, CMI can opt for standalone manufacturers. System fabricators utilize material orders, fabrication drawings, and STEP files provided by CMI for unparalleled accuracy.
• Global Vendors and SuppliersminorOthersCMI sources from vendors worldwide to ensure access to best resources for projects. Handles procurement and management of ocean, air, and local transport.
• L+M Development PartnerscoreStrategic or Co-development PartnerDeveloper partner for Essex Crossing Site 4 project. CMI proposed changing from window wall to curtain wall system to save owner time and money with better performing system. Collaborative design approach with architect Handel and CM Consigli.
• Marx Development GroupcoreStrategic or Co-development PartnerDeveloper partner for 450 11th Ave hospitality project. CMI designed and installed custom hybrid curtain wall/window wall system to meet architect's vision for faceted, angled, sloped facade.
• Rubenstein PartnerscoreStrategic or Co-development PartnerDeveloper partner for 25 Kent project spanning an entire city block. CMI supplied and installed many custom elements for this office/retail development.
• L.H. CharneycoreStrategic or Co-development PartnerDeveloper for 1441 Broadway (10 Times Square) project. CMI supplied and installed dual-span structural glass wall storefront system with glass fin structural support.
• TishmancoreStrategic or Co-development PartnerConstruction manager for Hospital for Special Surgery project. CMI designed custom curtain wall with double laminated insulated glass for healthcare facility renovation.
• Hampshire HotelscoreStrategic or Co-development PartnerDeveloper for Dream Hotel/Dream Downtown - one of CMI's most well-known projects featuring stainless steel rain screen panels and round operable windows giving hotel its signature look.
• Kulka ConstructioncoreImplementation/ SI/ Consulting PartnerGeneral contractor for Amneal Pharmaceuticals industrial project on Long Island. CMI supplied and installed insulated metal panels as exterior wall.
• ConsiglicoreImplementation/ SI/ Consulting PartnerConstruction manager for Essex Crossing Site 4. CMI worked closely with CM and design team for curtain wall system implementation.
• GenslercoreStrategic or Co-development PartnerArchitect for 25 Kent project. CMI supplied and installed custom elements for this commercial development designed by Gensler.
• DSM Design GroupcoreStrategic or Co-development PartnerArchitect for 450 11th Ave hospitality project. CMI worked with design team to create custom hybrid curtain wall/window wall system.
• SOCOTECcoreStrategic or Co-development PartnerConsultant for 450 11th Ave project. CMI collaborated with consultant team for custom system design.
• HandelcoreStrategic or Co-development PartnerArchitect for Essex Crossing Site 4. CMI collaborated with architect to achieve design intent including slab covers spanning three curtain wall panels.

Scale indicators4 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Front Inc. NYC-based building envelope consulting and engineering firm specializing in curtain wall design, engineering, and construction support — overlapping with CMI in facade engineering, thermal/acoustic modeling, and ASCE-7 structural analysis capabilities.
• Benson Industries: Architectural metal and glass contractor specializing in custom curtain walls and building envelopes for major commercial projects in NYC and other major U.S. metros — directly comparable in product mix and project types.
• Tower Glass Inc. Northeast U.S. architectural glass and metal contractor supplying and installing curtain walls, window walls, storefronts, and entrance systems — a directly comparable regional peer competing for similar NYC project opportunities.
• R.A. Kennedy & Son Contracting: NYC-based architectural metal and glass contractor performing custom curtain wall, window wall, and storefront installation for developers and GCs — a directly comparable regional peer in size, scope, and customer base.
• W&W Glass LLC: NJ/NYC-area curtain wall and architectural metal contractor specializing in custom unitized curtain wall, storefront, and glass facade systems for commercial and residential buildings — directly comparable to CMI in product scope, customer base, and regional focus.

Broad incumbents

• Kawneer Company (Arconic): Major manufacturer of architectural aluminum curtain wall, window wall, storefront, and entrance systems used widely across U.S. commercial construction — a broader incumbent whose products are often specified and installed by envelope contractors like CMI.
• Schüco USA: Global facade, window, and door systems manufacturer serving high-rise commercial and residential projects in the U.S., overlapping with CMI on premium curtain wall and window wall applications in dense urban markets.
• YKK AP America: Manufacturer and supplier of commercial facade systems including curtain walls, window walls, and storefronts, serving the same NYC developer and GC customer base as CMI but as a systems supplier rather than a design-build installer.
• Enclos Corp: National curtain wall and building envelope contractor with deep expertise in unitized and custom facade systems for high-rise commercial, residential, and institutional projects across the U.S., directly comparable to CMI's curtain wall and window wall services at a much larger scale.
• Permasteelisa North America: Global leader in the design, engineering, and installation of architectural envelopes and curtain walls, with a major NYC presence on landmark towers; overlaps with CMI on high-rise custom curtain wall commissions but at a much larger, multinational scale.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/profile.php
• LinkedInlinkedin.com/company/custom-metalcrafters-inc

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

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 Custom Metalcrafters