Glaziers, Architectural Metal & Glassworkers Local Union 513

What Glaziers, Architectural Metal & Glassworkers Local Union 513 does

Glaziers, Architectural Metal & Glassworkers Local Union 513 (Glaziers Local 513) is a St. Louis, Missouri-based local labor union representing skilled glaziers and glass workers in the regional Midwest construction market. Founded around 1899-1900 and chartered under the International Union of Painters and Allied Trades (IUPAT), the union has operated for over a century and is administratively headquartered at 5916 Wilson Ave., St. Louis. Its core offering is a 4-year registered apprenticeship program combining field and classroom training, producing journey-person glaziers certified to install aluminum storefronts, curtainwalls, glass doors, mirrors, switch glass, shower doors and enclosures, door hardware, unitized curtainwalls, and pre-glazed windows for commercial and residential projects.

The union's business model centers on recurring membership dues (the primary revenue stream) supplemented by labor-dispatch relationships with signatory contractors who hire union glaziers for construction projects. Members receive healthcare, retirement plans, job security, and ongoing continuing-education classes covering sealants, transit and laser operations, welding, blueprint reading, glass cutting, CPR/First Aid, and safety glazing codes. The organization maintains a 5-employee administrative staff, files Form LM-2 disclosures with the U.S. Department of Labor rather than SEC filings, and is governed by its members and elected officers rather than external shareholders.

Distribution is conducted regionally through direct contractor relationships, supplemented by digital channels (website, Facebook, Instagram, LinkedIn), community events (charity fundraisers, family picnics, golf tournaments, monthly union meetings), and partnerships with the parent IUPAT, District Council 58, and contractor partners such as Midwest Glazing. The union does not sell products directly to end customers; rather, it supplies certified, trained labor to general contractors on commercial and residential construction projects across the St. Louis metropolitan area.

Name

Glaziers, Architectural Metal & Glassworkers Local Union 513

Legal name

Glaziers, Architectural Metal & Glassworkers Local Union 513

Website

https://glaziers513.org

Company type

Private

Founded year

1900

Operating status

Operating

Headcount range

1–10 employees

Short description

Glaziers Local 513 is a St. Louis-based IUPAT-chartered labor union representing skilled glaziers, providing a 4-year registered apprenticeship program, certified journeyman labor, and member benefits to the regional Midwest construction market.

Ownership category

akta.pro rank

Product category

Skilled Trade Labor Services

NAICS

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

SIC

Construction - Special Trade Contractors (1700)

akta.pro primary industry

Architectural & Building Glazing Systems (Curtain Wall/Storefront/Canopies) (IMADAHAB)

akta.pro secondary industries

Interior Glazing & Glass Partitions (IMAFANAK), Glazing, Glass & Fenestration Installation (EDAOAAAH)

Keywords

• Union apprenticeship training
• Glass and glazing installation
• Skilled trade labor
• Construction labor services
• Union member benefits

Headquarters

HQ city

St. Louis

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Others

Revenue model

1. Union Membership Dues: Members pay dues to maintain union membership and access to benefits, healthcare, and retirement plans
2. Contractor Relationships: Works with contractors who hire union glaziers for construction projects, facilitating labor for glass and glazing work

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Glaziers Local 513 supplies certified skilled glazier labor to union contractors for commercial and residential construction projects in the St. Louis metropolitan area. Members install aluminum storefronts, curtainwalls, glass doors, mirrors, switch glass, shower doors and enclosures, door hardware, unitized curtainwalls, and pre-glazed windows. The union operates a 4-year registered apprenticeship program and provides member benefits including healthcare, retirement plans, job security, and ongoing certifications.

Product overview

Glaziers Local 513 is a labor union offering a portfolio of services centered on the skilled trade of glass and glazing. The core offering is the registered apprenticeship program—a 4-year earn-while-you-learn initiative combining field and classroom training in the glazing industry. Supporting the apprenticeship are member benefits services including healthcare and retirement provisions. The union also facilitates ongoing professional development through training classes covering sealants, transit/laser operations, welding, blueprint reading, and safety codes. These services collectively serve union members, contractors seeking skilled workers, and the St. Louis community.

Differentiator

Problem solved

Functional benefit

Products and services

• Glass & Glazing Services
• Registered Apprenticeship Program

Quantifiable outcome

• Zero lost-time injuries in the last 25 years
• +2 more outcomes

Named customers3 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

Four partnerships are on record, tiered minor and core.

• St. Louis Crisis NurseryminorOthersCharity beneficiary of the Glaziers Local 513 Charity Fund's annual Golf Classic. The union has supported this organization for five years, raising $17,000 last year. The St. Louis Crisis Nursery provides short-term safe haven for 5,000 children annually whose families face emergencies.
• District Council 58coreOthersParent district council organization. The union hosts DC 58 Family Jam Picnic events for union members and their families, demonstrating strong affiliation with the district council structure.
• Midwest GlazingcoreImplementation/ SI/ Consulting PartnerUnion contractor that performs glazing work on union projects. Featured on the union's projects page for work on St. Louis Community College - Florissant Valley, a 100% union project completed without lost time injury.
• Florissant Golf ClubminorOthersVenue partner for the Glaziers Charity Golf Classic annual tournament. Located at 50 Country Club Lane, Florissant, Missouri 63033.

Scale indicators5 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• Binswanger Glass: One of the largest commercial glazing contractors in the United States, providing design, fabrication, and installation services for storefront, curtainwall, and architectural glass. Represents the open-shop/non-union competitive alternative for the same project types Local 513 members work on.
• IUPAT Glaziers Local 162: Sister IUPAT-affiliated glaziers local union representing skilled glaziers in the Detroit/Southeast Michigan region. Directly comparable mission, apprenticeship structure, and contractor referral model serving the same trade in a different metropolitan market.
• W&W Glass LLC: Specialty commercial glazing and curtainwall contractor focused on architectural aluminum and glass systems. Competes with union signatory contractors for the same commercial glazing project scope Local 513 members are dispatched to.
• IUPAT Glaziers Local 188: IUPAT-affiliated glaziers local union serving the Chicago metropolitan area. Mirrors Local 513's structure: trained glazier workforce, apprenticeship pipeline, contractor referral system for commercial storefront, curtainwall, and architectural glazing projects.

Broad incumbents

• Enclos Corp. Major U.S. curtainwall and unitized glazing contractor serving large commercial and high-rise projects. Comparable technical capability in the same specialty trade but operates at multi-region scale as a non-union competitor.
• Ironworkers International Union: National union representing ironworkers who frequently work alongside glaziers on structural steel and metal building envelope projects. Comparable labor union model, apprenticeship structure, and regional local chapter footprint, but in a related rather than overlapping craft.
• Apogee Enterprises (Harmon Inc.): Public building products company whose Harmon subsidiary is a leading North American architectural glass, aluminum framing, and curtainwall installer. Comparable end-product capability but operates nationally as a non-union contractor at significantly larger scale than a single local union.
• United Brotherhood of Carpenters: Major North American building trades union with overlapping construction-industry presence, similar apprenticeship model, and comparable contractor referral structure. Adjacent craft rather than direct glazing competitor, but operates under the same labor union paradigm.

Others

• National Glass Association: Trade association serving the architectural glass, glazing, and fenestration industry with training, certification (MyGlassClass), and industry standards. Comparable focus on workforce credentialing and industry development for the same trade Local 513 represents.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/GlaziersLocal513
• LinkedInlinkedin.com/company/glaziers-architectural-metal-glassworkers-local-union-513
• Instagraminstagram.com/glazierslocal513

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 Glaziers, Architectural Metal & Glassworkers Local Union 513