when only the best will do

Our fiberglass casement, awning, fixed casement and picture  windows are some of the highest performing fiberglass windows available today, featuring:

Pultruded fiberglass frame and sash with corners that are silicone sealed and chemically bonded together utilizing our proprietary Super Strength Corner (S2C) System.

Spray foam filled frames completely fill the hollow of the fiberglass pultrusion, improving the energy efficiency, strength and quietness of the window.

Triple weather-stripping with continuous corner seals provide an air and water tight perimeter.

1″ double pane comes standard or 1 3/8″ triple pane for improved energy performance.  Optional krypton gas fills are available.

Integral kerf mounted rigid nailing fin with 1″ and 1 1/2″ setback options.

Multi-point locking system keeps the casement and awning windows closed tightly against the elements with one simple operation.

Large selection of interior and exterior trim accessories including brickmoulds and wood jamb extensions.

Folding handle allows for various interior window treatments with no interference.

FlexScreen with BetterVue mesh comes standard on all casement and awning windows.

The fixed casement uses a wool pile weatherstrip on the exterior of the frame so when a casement or awning is mulled to a fixed casement, they appear 100% symmetrical.

Our low profile picture window features clean, simple, modern lines and only measures 1 1/2″ tall, creating open views to the outdoors.

Fiberglass mullion couplers are used to join multiple windows together.  These are superior to PVC mullion couplers because they are stronger, use the exact same paint as the window frames and do not expand or contract like PVC.

fiberglass awning window
fiberglass casement windows operator
fiberglass casement windows cutaway

3D Navigator

View more detailed drawings of our Casement and Awning windows, click here.

Why Fiberglass?

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Insulated Glass Packages
Glass Upgrades
Decorative & Tinted Glass Options
Color Options
Hardware Options
Decorative Grilles
BetterVue Screen Mesh
Minimum and Maximum Dimensions
AAMA Test Ratings
  • Testimonials

    • "After extensive research, EnerLux was the only company I found that provided a passive solar window with a good U value at a fair price."

      Leslie Z. (Hastings, NE)


    • "I am extremely impressed by Enerlux's high quality craftsmanship and attention to detail. Their integrity has shown through in all aspects of our work together. I will definitely be contacting them again when I replace the rest of my windows."

      Marcia B. (Omaha, NE)

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    • "The windows look great and they operate so much easier than my old ones."

      Jean E. (Clarinda, IA)

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    • "Just an update to tell you that the other day my wife said whatever I paid for the shower window, it was well worth it.  Thanks again."

      Bruce H. (Glen Ellen, CA)

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    • "If you ever need someone to represent EnerLux Windows & Doors on the East coast, just let me know.  You provide some of the best quality product I have ever seen."

      Mark C. (Erlanger, KY)

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    • "I appreciate the time everyone gave to show the process of building the best built window on the planet! I am making calls and telling my customers to hold up, I found something much better and it will be worth it."

      Travis B


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