Ornamental Installation Specialists, Inc.

What Ornamental Installation Specialists, Inc. does

Ornamental Installation Specialists, Inc. (OIS), also doing business as Ornamental Installation Services, is a privately held New York corporation founded in 1984 and headquartered at 4 Jones Road in Warwick, NY. The company operates as a specialty trade contractor focused on ornamental and architectural metal and glass installation for major commercial and public construction projects in the New York metropolitan area. Its service portfolio spans Advanced Curtainwall and Window Wall Installations, Glazing of Storefronts and Towers, Material Fabrication and Supply, dedicated trucking operations, Emergency Glass Replacement, and — since 2020 — off-site Re-Fabrication of mis-fabricated materials and Re-Glazing of doors and facade panels at a union-trained shop located one hour outside Manhattan, with a documented three-business-day turnaround.

OIS serves primarily general contractors, construction managers, and commercial real estate developers through an enterprise field-sales motion in which projects are acquired via RFP submissions to its Estimating Department. Revenue is generated through fixed-price, project-based contracts for one-time installation services, supplemented by material fabrication and supply, and increasingly by recurring emergency re-glazing and re-fabrication work. The workforce is unionized (Local 580) and certified under OSHA and DOB requirements, with a dedicated Safety Marshall and daily jobsite safety huddles on every project. Notable publicly visible engagements include the Moynihan Train Hall (MTA/LIRR) — where OIS installed over 100,000 sq ft of truss covers, column covers, soffits, architectural louvers and panel walls, and over 100,000 linear feet of glass handrail systems — and the Brooklyn Botanic Garden Visitor Center.

The business model is concentrated, regionally bounded, and reputation-driven. The company depends on the rhythm of NYC-area construction cycles, the strength of its relationships with general contractors, and the operational leverage of its vertically integrated trucking and off-site fabrication capabilities. There is no disclosed revenue, headcount, funding history, or public-company reporting; ownership is private and leadership is led by President and CEO Louis Cantelmo Sr.

Name

Ornamental Installation Specialists, Inc.

Legal name

Ornamental Installation Specialists

Website

https://oismetalandglass.com

Company type

Private

Founded year

1984

Operating status

Operating

Short description

Ornamental Installation Specialists is a privately held NYC-area specialty trade contractor that installs and fabricates ornamental and architectural metal and glass systems — curtainwalls, window walls, storefronts, handrails, and panels — for general contractors, developers, and public-project owners across the New York metropolitan area.

Ownership category

akta.pro rank

Product category

Architectural Metal and Glass Installation

NAICS

Glass and Glazing Contractors (23815), Glass and Glazing Contractors (238150)

akta.pro primary industry

Glazing, Glass & Fenestration Installation (EDAOAAAH)

Keywords

• Curtainwall installation services
• Architectural metal glazing
• Storefront glass installation
• Ornamental metal cladding
• Window wall systems

Headquarters

HQ city

Warwick

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Infrastructure, Others

Revenue model

1. Installation Services: Project-based installation of ornamental and architectural metal and glass systems including curtainwalls, window walls, storefronts, handrails, column covers, truss covers, soffits, and architectural panels. Revenue is generated through fixed-price contracts for construction projects.
2. Material Fabrication and Supply: OIS fabricates and supplies curtainwall units, storefronts, ornamental and architectural metal cladding, and decorative panels as part of their service offerings.
3. Emergency Glass Replacement Services: Emergency glass replacement services including re-glazing of broken glass on curtainwalls and storefronts, with off-site re-fabrication and quick turnaround capabilities.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Ornamental Installation Specialists, Inc. (OIS) is a specialty trade contractor that installs ornamental and architectural metal and glass systems on large commercial and public construction projects in the New York City metropolitan area. The company provides end-to-end delivery — in-house fabrication, supply, trucking, installation, and emergency re-glazing — for curtainwalls, window walls, storefronts, handrails, column covers, truss covers, soffits, and decorative metal panels.

Product overview

OIS offers a unified suite of ornamental and architectural metal and glass installation services, combining general contracting and construction management capabilities with specialized fabrication, installation, and emergency services. The portfolio centers on Advanced Curtainwall and Window Wall Installations as the primary offering, supported by Glazing of Store Fronts and Towers, Material Fabrication, Supply and Trucking, and Emergency Glass Replacement. Since 2020, OIS has expanded to include off-site Re-Fabrication and Re-Glazing services from its shop one hour outside Manhattan, along with dedicated trucking operations capable of returning fully glazed units within 3 days. Interior Metal and Glass Installation services round out the comprehensive offering. All services leverage a union labor force, state-of-the-art equipment, and over 40 years of industry experience.

Differentiator

Problem solved

Functional benefit

Products and services

• Advanced Curtainwall and Window Wall Installations State-of-the-art installation services for curtainwall and window wall systems on commercial towers and large-scale construction projects in New York City, leveraging 40+ years of experience and advanced installation methodologies.
• Glazing of Store Fronts and Towers Installation and re-glazing services for storefronts and high-rise curtainwall systems, including replacement of broken glass at various building heights ranging from ground-level storefronts to upper-story curtainwalls.
• Material Fabrication, Supply and Trucking In-house fabrication and supply of curtainwall units, storefronts, ornamental and architectural metal cladding, and decorative panels, paired with dedicated trucking for material delivery and pickup at project sites.
• Emergency Glass Replacement Rapid-response service for emergency glass replacement on high-rise curtainwalls and ground-level storefronts, providing quick turnaround for broken glass pieces at any building height.
• Off-Site Re-Fabrication Off-site re-fabrication of mis-fabricated materials at the company's union-trained shop located one hour outside Manhattan, enabling correction of installation errors without on-site disruption.
• Off-Site Re-Glazing Services Pickup, re-glazing, and return service for doors and facade panels, using off-site union-trained shop personnel to return fully glazed units within 3 business days via the company's proprietary trucking service.
• Interior Metal and Glass Installation Specialized installation services for interior metal and glass applications, including preparation of interior and exterior doors for various hardware packages.
• General Contracting and Construction Management Comprehensive project management services for ornamental and architectural metal and glass installation projects, coordinating a union labor force and progressive project management teams from fabrication through installation.

Quantifiable outcome

• 3-day turnaround for emergency glass replacement services
• +1 more outcomes

Named customers2 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators4 records

Recent moves4 records

Expansion highlights4 records

Direct peers

• Benson Industries: NYC-headquartered architectural glass and curtainwall installer serving commercial high-rise projects. Direct competitor in the same metropolitan market with overlapping customer segments.
• Enclos Corp. National specialty facade and curtainwall contractor with deep NYC presence. Competes with OIS on complex high-rise facade projects and is one of the larger specialty players in OIS's segment.
• W&W Glass LLC: New York-based specialty curtainwall and architectural glass contractor. W&W Glass competes directly with OIS on NYC commercial high-rise facade installations and shares the same general-contractor customer base.
• Walters & Wolf: US specialty curtainwall and architectural metal contractor serving commercial buildings. Comparable scope of curtainwall, storefront, and architectural metal installation services to OIS.
• Crown Corr Inc. National specialty facade contractor providing curtainwall and architectural metal installation for stadiums, airports, and commercial buildings. Overlapping services and project profiles with OIS.
• Tower Glass Inc. Mid-Atlantic specialty glazier with strong NYC presence doing curtainwall, storefront, and custom glass installation. Directly comparable services and customer profiles to OIS.
• Giroux Glass Inc. Large commercial glass and glazing contractor operating in NYC and other major US markets. Competitor on commercial towers, curtainwalls, and architectural glass projects at the same scale as OIS.

Broad incumbents

• Harmon Inc. (APi Group): Subsidiary of APi Group, one of the largest US commercial glazing and curtainwall contractors. Operates across many US metro markets and competes for the same large-scale commercial and high-rise facade work as OIS.
• Permasteelisa (Cimolai Group): Global facade engineering and curtainwall contractor with major NYC presence. Competitor on large-scale commercial and landmark facade projects; broader geographic scope than OIS.
• Flynn Group (FACADES): Large multi-trade specialty contractor with a facades division serving commercial construction across North America. Overlaps with OIS on glazing and curtainwall scope, but operates as part of a much broader contracting portfolio.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Ornamental Installation Specialists, Inc.