Winco Window

What Winco Window does

Winco Window is a privately held, family-owned U.S. manufacturer of custom architectural aluminum windows, founded in 1915 and headquartered in a single-site facility at 6200 Maple Avenue, St. Louis, Missouri. The company designs, engineers, and tests its products in-house, and sells them on a quote basis through a nationwide network of architectural sales representatives to architects, contractors, building owners, and developers. Its product portfolio spans more than 20 window and door series covering historic replica, zero sightline, fixed/projected/casement, single/double hung, sliding, terrace door, FEMA tornado/hurricane-rated, blast-resistant, and human-impact-resistant (behavioral-care) configurations, with the 3250 Steel Replica line as a flagship offering that replicates historic steel sightlines at 30-40% lower cost than real steel.

Winco's go-to-market is enterprise B2B field sales, supported by downloadable Revit/BIM files, technical specification PDFs, project case studies, a blog, and a "Find a Rep" lookup tool. Pricing is fully project-specific and quote-based; revenue is generated through one-time product sales to construction and renovation projects across education (K-12 and university), government, military, hospitality, healthcare, industrial, and multi-family residential verticals, with no subscription or recurring component. Notable projects include 48,000+ sq ft of steel-replica windows at Pier 70 (Uber ATG R&D Center, San Francisco), 370,156 sq ft of blast-resistant windows at the Fort Carson Warrior in Transition Barracks (LEED Gold, Army Net Zero), and the 8800 Behavioral Care Window line for psychiatric facilities.

The company is in its fourth generation of family leadership, with Gantt W. Miller III, AIA serving as CEO and Woodrow "Woody" Sutton Miller assuming the presidency in April 2026. Winco holds no disclosed institutional investors, subsidiaries, M&A activity, or external funding; growth has been entirely organic across 110+ years of continuous operation, with 51-100 employees and a U.S.-only footprint spanning 15+ states. The firm's competitive position rests on century-deep fenestration engineering expertise, historic-preservation domain knowledge, custom extrusion capability, and a specification-channel relationship with the architect community rather than on technology platforms or AI-driven differentiation.

Name

Winco Window

Legal name

Winco Window

Website

https://wincowindow.com

Company type

Private

Founded year

1915

Operating status

Operating

Headcount range

51–100 employees

Short description

Winco Window is a family-owned, fourth-generation U.S. manufacturer founded in 1915 that designs, engineers, and tests custom architectural aluminum windows and terrace doors in a single St. Louis facility, selling quote-based via architectural sales reps to commercial, historic-preservation, education, government, military, healthcare, and multi-family projects nationwide.

Ownership category

akta.pro rank

Product category

Architectural Aluminum Windows

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

Architectural & Building Glazing Systems (Curtain Wall/Storefront/Canopies) (IMADAHAB), Custom Window & Door Fabrication & Replacement (HSAPAJAI)

Keywords

• Commercial aluminum windows
• Historic replica windows
• Hurricane impact windows
• Custom window fabrication
• Architectural fenestration systems

Headquarters

HQ city

St Louis

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Custom Aluminum Windows and Doors: Winco manufactures and sells custom architectural aluminum windows and terrace doors for commercial applications. Products are sold directly to architects, contractors, and building owners for specific projects. Revenue is generated through one-time product sales for construction and renovation projects rather than recurring subscriptions.
2. Project Consultation Services: Free project consultation services are offered to architects and building owners to help specify the right window products for their projects. This supports the core product sales by helping customers select appropriate products.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels7 records

Core offering

Winco Window manufactures and sells custom architectural aluminum windows and terrace doors for commercial applications in new and historic buildings. The company designs, engineers, fabricates, and tests products in-house at its single-site St. Louis facility, offering product families that span historic steel replica windows, zero sightline vents, fixed/projected/casement series, single/double hung, sliding windows, terrace doors, and specialized safety-rated windows including FEMA tornado/hurricane-resistant, blast-resistant, and behavioral care/psychiatric human-impact-resistant units.

Product overview

Winco Window is a commercial aluminum window manufacturer offering a comprehensive portfolio of custom architectural window and door products. The product line includes multiple series across distinct categories: Historic Replica windows (3250 Steel Replica, 1450/1450S Hung Replica) designed to match original historic profiles while meeting modern codes; Zero Sightline operable vents (3325SF for storefront, 3325CW for curtain wall) providing unobstructed views with natural ventilation; Fixed/Projected/Casement windows (1150, 1150S, 3350, 8325 series) for general commercial applications; Single and Double Hung windows (4410/4410S, 4500/4500S series) with various thickness and historical appearance options; Sliding windows (3410, 3600 series) for high-volume applications; specialty doors (NC-82 Terrace Door) with thermal and hurricane resistance; and specialized safety windows including FEMA tornado/hurricane rated, hurricane-resistant, blast-resistant, and behavioral care/psychiatric windows (8800 series). The company also offers innovative solutions like Transira motorized shading and Blind Sash retrofit windows with integral blinds. Winco's products serve diverse markets including education, government, healthcare, multi-family residential, hospitality, and industrial sectors, with all products engineered and tested in-house at their St. Louis facility since 1915.

Differentiator

Problem solved

Functional benefit

Brands

• Transira: Motorized high-tech shading system integrated into custom-made windows for security, energy savings, and healthier environments.
• 3250 Steel Replica
• 3325SF Zero Sightline

Products and services

• 3250 Steel Replica Window Steel replica window series with heavy aluminum frames (3-1/4 inch deep, 1/8 inch wall thickness) offering the thinnest profiles on the market and 30-40% cost reduction versus real steel windows; meets historic preservation requirements while complying with modern building codes; factory-glazed with optional laminated interlayer and hurricane-rated version available.
• 3325SF Zero Sightline Vent Operable window vent system with near-invisible profile designed for storefront applications, featuring 2 inch deep frame, 1-1/4 inch vent, project-out awning and outswing casement styles with 1 inch glazing pocket insert for nearly floor-to-ceiling views and natural ventilation.
• 3325CW Zero Sightline Vent Operable window vent engineered for curtain wall systems with near-invisible profile preserving clean uninterrupted sightlines while providing natural airflow in storefront and curtain wall applications.
• 1450 Hung Replica Window Hung replica window offering the aesthetic of a double-hung window with the energy performance of fixed, projected, or casement configuration; 4 inch frame depth with 1/8 inch wall thickness for historic replication projects.
• 1450S Hung Replica Window Simulated hung replica with aesthetic of a hung window in fixed, projected, or casement configuration; 4 inch frame depth and extruded beveled glazing leg for clean sightlines; AW Grade AP-AW100 rating.
• 1150 Series Window

Quantifiable outcome

• 48,000+ square feet of windows installed in single project (Pier 70)
• +5 more outcomes

Named customers25 records

Segments10 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

20 partnerships are on record, tiered core.

• Bonstra | Haresign ArchitectscoreStrategic or Co-development PartnerArchitecture firm serving as project architect for Dominion Apartments in Arlington, VA. Worked with Winco to specify 3250 Steel Replica windows for 188-unit multi-family residential building replacing original steel windows.
• HITT ContractingcoreImplementation/ SI/ Consulting PartnerGeneral contractor for Dominion Apartments project, responsible for construction execution of the 188-unit multi-family residential building renovation.
• Caffes-Steele Window and DoorcoreImplementation/ SI/ Consulting PartnerGlazing contractor for Dominion Apartments project, responsible for window installation of Winco 3250 Steel Replica products.
• Orton Development Inc.coreStrategic or Co-development PartnerDeveloper for Pier 70 historic renovation project in San Francisco. Orton Development saw opportunity to save fragile historic buildings while creating new jobs and public amenities at one of the largest shipyards west of the Mississippi River.
• Marcy Wong Donn Logan ArchitectscoreStrategic or Co-development PartnerArchitecture firm tasked with replicating the look of original over-sized windows at Pier 70. Collaborated with Winco for six months to ensure every detail was perfect for historic window replication.
• Maz GlasscoreImplementation/ SI/ Consulting PartnerOakland-based glazing contractor that rebuilt window openings, performed concrete repair work, and installed 48,000+ square feet of Winco 3250 Steel Replica windows at Pier 70.
• Albert ArchitecturecoreStrategic or Co-development PartnerArchitecture firm for Farnsworth Apartments renovation in New Orleans. Designed window and door specifications with Winco to preserve 1932 modernist building aesthetics while meeting hurricane requirements.
• Star Glass InccoreImplementation/ SI/ Consulting PartnerGlazing contractor that installed Winco 3250 Steel Replica windows and NC-82 Terrace Doors at Farnsworth Apartments in New Orleans.
• Bello Garris ArchitectscoreStrategic or Co-development PartnerDesign architect for The Loutrel Hotel in Charleston, SC. Responsible for achieving Board of Architecture approval for historic Steel Replica window and door products.
• BBGM ArchitectscoreStrategic or Co-development PartnerArchitect of record for The Loutrel Hotel, working with Winco to specify historic replica windows and hurricane-resistant terrace doors.
• GlasscorpcoreImplementation/ SI/ Consulting PartnerGlazing contractor for The Loutrel Hotel in Charleston. Managed complex project from start to finish with Winco providing customer service and top-tier window products.
• CannonDesigncoreStrategic or Co-development PartnerArchitecture firm that designed Strawberry Hill Behavioral Health Hospital in Kansas City, KS. Selected Winco 8800 Retrofit windows with 1/2 inch polycarbonate security glass and built-in blinds for patient safety.
• US Army Corps of EngineerscoreImplementation/ SI/ Consulting PartnerFederal agency responsible for Fort Carson Warrior in Transition Barracks project. Winco 3410 sliding windows with blast-resistant laminated glass installed throughout 370,156 sq. ft. complex.
• M.A. Mortenson CompanycoreImplementation/ SI/ Consulting PartnerGeneral contractor for Fort Carson project, one of the largest Army barracks projects, achieving LEED Gold certification.
• Burgdahl & Graves, AIA ArchitectscoreStrategic or Co-development PartnerArchitecture firm for Gretna City Hall renovation, ensuring new hurricane-resistant windows replicated originals down to sculpted trim to satisfy historic review boards.
• DeGeorge Glass Company Inc.coreImplementation/ SI/ Consulting PartnerGlazing contractor that installed Winco 4410S Series single-hung hurricane-resistant windows at historic Gretna City Hall.
• Jefferson Apartment GroupcoreStrategic or Co-development PartnerDeveloper for J Linea luxury apartments in Washington, D.C. featuring 3325SF Zero Sightline windows for 132-unit building with historic renovation elements.
• Hickok Cole ArchitectscoreStrategic or Co-development PartnerArchitecture firm for J Linea project, creatively integrating Winco 3325SF Zero Sightline windows with historic facade renovation.
• CBG Building CompanycoreImplementation/ SI/ Consulting PartnerGeneral contractor for J Linea construction project in Washington D.C.
• Merit Commercial WindowscoreImplementation/ SI/ Consulting PartnerGlazing contractor for J Linea project, installing Winco zero sightline window systems.

Scale indicators18 records

Recent moves5 records

Expansion highlights5 records

Market position

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/WincoWindow

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 Winco Window