Energy-Glazed Systems, Inc.

Grayslake, Illinois 60030
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Our Story

Formerly known as GSI, or Glazed Structures, Inc., with over 40 years of experience in the industry, E-GSI continues to lead the industry with our commitment to excellence in the development, production, and installation of virtually any skylight system, pre-engineered or custom.  We have recently expanded our capabilities and product line to include shading systems and retractable roof systems, putting us in the forefront in the glass and glazing industry. 
Our team of highly experienced engineers, craftsmen, and installers has initiated the development and refinement of twelve of the most versatile, comprehensive, quality engineered overhead glazing systems available on the market. 
E-GSI's year of experience in developing quality glazing systems have been incorporated into high-tech, leak-free insulated and economical structural polycarbonate/fiberglass panel systems. Panel sections (6' wide up to 22' long) are pre-glazed and designed to lock together with the patented lock seal design. No field fabrication is required. 
E-GSI's integral condensation gutter and weeping system carries all moisture to the outside. Filling the demand for high-quality factory-glazed skylight systems, we have pushed the envelope of excellence offering custom or standard skylight systems that  are 100% factory assembled and shipped to the field completed. Without proper condensation control, skylights not only become unsightly, but they can lead to interior leakage, staining, and thousands of dollars worth of damages. 

Some of our products are:

- Structural Skylights

- Dome Systems

- Gutter-Grid Systems

- Green Houses

- Arch-Vault Skylights

- Factory Glazed Units

- Structural Panel Systems

- Aquatic Structures

- Skin Glazing Systems

- Modular Structures

What We Do

Products and Services

Blue Book Network Classifications

CSI Codes

Our company manufactures products that can be specified under the following CSI Master Format™ code(s).

Commercial Construction Project Specializations

Animal Hospital / Kennel
Apartments & Condominiums
Arena / Stadium
Assisted Living
Church / Synagogue
City / Town Hall
Club House / Community Center
Court House
Data Centers - Mission Critical
Design Build
Education (K-12)
Fire / Police Station
Fitness Center
Gas Station
Golf Course
Grocery Stores
Hospital / Nursing Home
Hotel / Motel
Jail / Prison
Manufacturing Plant
Medical Office
Mixed Use
Non-Building Construction
Non-Residential Building
Parking Garage
Post Office
Pre-Manufactured Structures
Retail Store
School / College / University
Secure and Shielded Facilities
Sewage / Water Treatment Plant
Single Family Residential
Storage Facility / Warehouse
Terminal - Airport / Bus / Railroad
Theme Park
Tract Housing

Company Information

Year Established:
Labor Affiliation:
Prevailing Wages (Davis-Bacon)
Company Size:
20-49 Employees
Service Sector:
Public Private
Typical Project Size:
Not Provided Request
Project Types:

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