Graham Architectural Products

What Graham Architectural Products does

Graham Architectural Products, founded in 1960 and headquartered in Pennsylvania, is a U.S. manufacturer of commercial and architectural grade windows, doors, and window wall systems. The company operates as a portfolio brand within Oldcastle BuildingEnvelope, Inc., which itself is part of CRH plc (NYSE: CRH), a global building materials group. Graham serves the architecture, engineering, and construction (AEC) community through specification-grade fenestration engineered to stringent performance codes, with particular depth in five niche categories: historic replication (SR6700 Steel Replica Window), hurricane impact resistance (HIGT and HI series with Florida Building Code compliance), blast resistance (B series meeting GSA Level C and DoD UFC 4-010-01), human impact resistance for behavioral health (GT6300 tested to AAMA 501.8, aligned with NYS-OMH and VA criteria), and high-performance commercial window wall systems (W4500 series).

The company's underlying technology is rooted in aluminum and steel-replica framing systems with proprietary thermal barriers — factory-assembled Unitized Receptor Systems using reinforced polyamide nylon strips for structural thermal breaks, and European thermal strut technology for low U-values and AAMA AW-rated performance. All products are tested to AAMA, NFRC, ASTM, and Florida Building Code standards, with specialized testing for hurricane, blast, and human impact scenarios. Graham's go-to-market is specification-driven enterprise field sales supported by an AIA strategic partnership (eighth year in 2026), AIA-certified continuing education programs, technical resources and CAD documentation, and distribution through the Oldcastle BuildingEnvelope channel network and a Find a Rep field sales force. Revenue is generated primarily through project-based bids on new construction and renovation/adaptive reuse projects, with secondary revenue from technical services and continuing education.

Name

Graham Architectural Products

Legal name

Graham Architectural Products Corporation

Website

https://grahamwindows.com

Company type

Private

Founded year

1960

Operating status

Operating

Headcount range

251–500 employees

Short description

Graham Architectural Products is a U.S. manufacturer of commercial and architectural grade windows, doors, and window wall systems, specializing in historic replication, hurricane-, blast-, and human impact-resistant fenestration for the AEC community. It operates as a portfolio brand of Oldcastle BuildingEnvelope within CRH plc.

Ownership category

akta.pro rank

Product category

Architectural Fenestration / Commercial Window Systems

NAICS

Metal Window and Door Manufacturing (332321)

SIC

Metal Doors, Sash, Frames, Moldings & Trim (3442)

akta.pro primary industry

Windows (IMADAIAC)

akta.pro secondary industries

Interior Doors (IMADAIAB), Window & Door Frame/Sash Replacement (HSAPAJAF)

Keywords

• Commercial fenestration products
• Architectural window systems
• Hurricane impact windows
• Blast resistant windows
• Historic replication windows

Headquarters

HQ city

Pennsylvania Furnace

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. Architectural Fenestration Products: Sale of commercial and architectural grade windows, doors, and window wall systems. Products are sold through the AEC community (architects, specifiers, contractors) for use in new construction and renovation projects.
2. Technical Services and Education: Provision of technical expertise, continuing education programs, and architectural support services to the AEC community as part of partnership initiatives.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels6 records

Core offering

Graham Architectural Products manufactures and supplies commercial and architectural grade windows, doors, and window wall systems for new construction and renovation projects. The portfolio spans standard product categories (casement, fixed, hung, projected, sliding, dual action) plus specialized lines for hurricane resistance, blast resistance, human impact resistance (behavioral health), and historic steel-window replication, all engineered to AAMA, NFRC, ASTM, GSA, DoD, and Florida Building Code standards.

Product overview

Graham Architectural Products is a manufacturer of commercial and architectural grade windows, doors, and window wall systems. The product portfolio includes multiple window types (casement, doors, dual action, fixed, horizontal sliding, hung, projected), security and vandal screens, window accessories, and specialized product lines including the GT6300 Human Impact Resistant Window for healthcare/behavioral health, SR6700 Steel Replica Window for historic replication, and various hurricane-resistant (HIGT, HI, HIS series) and blast-resistant (B series) product lines. The W4500 Series Window Wall serves high-rise construction. Products are tested to AAMA, NFRC, ASTM, and Florida Building Code standards, with specialized testing for hurricane impact, blast mitigation, and human impact resistance.

Differentiator

Problem solved

Functional benefit

Products and services

• GT6300 Human Impact Resistant Window Fixed window designed for behavioral health and healthcare environments; engineered to withstand three 2,000 ft-lb impacts while maintaining system integrity; includes anti-ligature protection and optional integral blinds with maintenance-only access.
• SR6700 Steel Replica Window Aluminum window system that replicates the look of historic steel windows found in older buildings, designed for historic preservation and adaptive reuse projects; combines modern materials with traditional aesthetics.
• W4500 Series Window Wall Factory-glazed window and door system for high-rise new construction with 4.5 inch frame depth and CRF 72 (fixed) / 70 (operable) thermal performance.
• Casement Windows Windows that operate about a vertical axis, moving away as in-swinging or out-swinging vents, using compression-seal weatherstripping.
• Doors Storefront and framing systems ranging from single door applications to large-scale projects with multiple points of entry.
• Dual Action Windows Tilt-turn windows where the ventilator tilts into the room from the top for ventilation and swings in from the side for cleaning.
• Fixed Windows Non-operable windows with glazing installed directly into main frame members, providing excellent air and water performance.
• Horizontal Sliding Windows Slider windows with one or more horizontal sashes in a master frame, gliding on rollers for easy operation.
• Hung Windows Windows where sash weight is counterbalanced by a balance system; available in single hung, double hung, and triple hung configurations.
• Projected Windows Windows that project away from the frame plane as awning or hopper vents, opening horizontally.
• Security & Vandal Screens Protective screens that help protect windows from break-ins and vandalism with a seamless integrated look.
• Window Accessories Interior trim, exterior panning shapes, installation accessories, curved window designs, and muntin options.
• Window Wall Factory-glazed window and door units installed between floor slabs of multi-story buildings, creating a curtain wall appearance.
• HIGT6700 Series Hurricane Impact Projected Window Hurricane impact resistant projected awning window with historic window profile, incorporating European thermal strut technology for energy efficiency and AAMA AW rated performance.
• HIGT6700 Series Hurricane Impact Fixed Window Hurricane impact resistant fixed window with historic profile and European thermal strut technology for low U-values.
• HIGT6700 Series Hurricane Impact Casement Window Hurricane impact resistant casement window with historic profile, 3.0 inch frame depth, and AAMA AW rating; tested for high-velocity hurricane zones.
• HIGT0900 Series Hurricane Impact Sliding Glass Doors Hurricane resistant sliding glass doors with 4.0 inch frame depth.
• HIGT7700 Series Hurricane Impact Terrace Doors Hurricane resistant terrace doors with frame depths ranging from 2.75 to 3.75 inches.
• B1200 Series Blast Resistant Fixed Window (Nail Fin) Blast resistant fixed window with nail fin frame, 3.25 inch depth.
• B1200 Series Blast Resistant Fixed Window (Standard) Blast resistant fixed window with minimal hazard response, tested to ASTM F 1642.
• B2200H Series Blast Resistant Double Hung Window Blast resistant double hung window with 4.0 inch frame depth, providing GSA Level C protection and meeting DoD UFC 4-010-01 criteria.
• Unitized Receptor System Extruded aluminum sub-frame base members with snap-in retainers, factory assembled and sealed for simplified window installation; features structural thermal barrier of two reinforced polyamide nylon strips with perimeter glazing gaskets at interior and exterior surfaces.

Quantifiable outcome

• GT6300 window withstands three 2,000 ft-lb impacts while maintaining system integrity
• +4 more outcomes

Named customers13 records

Segments7 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

One partnership is on record.

• American Institute of Architects (AIA)coreGTM or Marketing Partner · 1 January 2026Oldcastle BuildingEnvelope, including portfolio brands CRL and Graham Architectural Products, has renewed its strategic partnership with AIA for 2026, marking the eighth year of collaboration. The partnership provides opportunities to offer technical expertise, joint research initiatives, AIA-certified continuing education programs, and direct architectural support to the AEC community.

Scale indicators4 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Winco Window Company: Winco is a U.S. manufacturer of architectural aluminum windows including historic-replication, blast-resistant, and hurricane-impact product lines, directly comparable to Graham's specialty fenestration portfolio and institutional customer focus.
• YKK AP America: YKK AP America is a major manufacturer of architectural aluminum windows, entrances, and curtain walls serving commercial and institutional buildings, directly comparable to Graham on product type, customer segments, and engineered-performance focus.
• Tubelite: Tubelite manufactures architectural aluminum storefronts, entrance, curtain-wall, and window-wall systems for commercial construction, directly overlapping Graham's fenestration product lines and institutional customer base.
• Wausau Window and Wall Systems: Wausau is a U.S. manufacturer of architectural aluminum windows, curtain walls, and window walls serving commercial, institutional, and historic-replication projects, directly overlapping Graham's product portfolio, customer base, and code-driven specialty focus.
• EFCO Corporation: EFCO manufactures architectural aluminum windows, curtain walls, and storefront systems for commercial and institutional construction, directly competing with Graham on engineered fenestration solutions and code-driven specialty applications.
• TRACO (CRH): TRACO is a CRH-owned manufacturer of architectural aluminum windows, window walls, and entrances serving commercial and institutional markets, a portfolio peer under the same parent (OBE) that competes with Graham on similar code-driven specification work.
• Pella Commercial: Pella Commercial offers architectural-grade window and door solutions for institutional, healthcare, education, and multifamily projects, competing with Graham in the same specification-driven, code-sensitive market segments.

Broad incumbents

• Kawneer Company: Kawneer is a large, established North American aluminum fenestration and curtain-wall brand (also part of the CRH family via Arconic/Arconic-owned history and competing aluminum offerings), competing broadly with Graham across commercial and institutional windows while serving a much wider product portfolio.
• Oldcastle BuildingEnvelope: Oldcastle BuildingEnvelope is Graham's direct parent and a leading North American manufacturer of architectural aluminum glazing systems, curtain walls, and storefronts; while much broader in scope than Graham, it is the closest broad incumbent shaping the competitive landscape for Graham's offerings.

Emerging players

• Vitrocsa USA: Vitrocsa specializes in ultra-minimal-frame sliding glass walls and windows for high-end architectural projects, an emerging specialty fenestration brand that intersects with Graham's residential high-rise and luxury commercial segments rather than directly competing on blast or hurricane lines.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/grahamwindows
• Facebookfacebook.com/grahamarchitecturalproducts
• LinkedInlinkedin.com/company/graham-architectural-products

Compliance11 records

Revenue estimate

Valuation estimate

Number of profiles

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 Graham Architectural Products