ExoFrame - the Best Egress Window System Design

ExoFrame structural steel egress window system

Save Time & Money

The single-piece design of the ExoFrame™ allows for a quick and sturdy installation compared to conventional wood-framed units. Our ExoFrames are pre-sized to the final window opening and fabricated in a controlled shop environment.

Typical wood frame units require fabrication at the site and do not offer the superior strength qualities found in the ExoFrame. Additionally, to allow for a code-approved egress window, wood frame designs require the removal of up to 30% more concrete from the foundation along with the original poured-in steel buck.

The combination of ExoFrame’s prefabricated frame and reduction of on-site work saves valuable time and labor costs. In a typical ExoFrame egress window installation, we can install a new window and seal it within 90 minutes after cutting and removing the section of wall.

bevel welded corner of the ExoFrame egress window system

The Strongest Window in the Home

A standard 4” x 4” x 1/4” ExoFrame can support a 3000 lb load at the center point and 6000 lbs. of overall load.

Precision cut from structural iron and with bevel welded corners, the Exo-Frame is designed for superior load-bearing capacity.

ExoFrame egress window system installed across different foundation types

Works with Most Foundations

The ExoFrame adapts easily to almost any foundation type: piered or grade beam, brick, concrete or block.

An ExoFrame can be easily customized to accommodate a multi-story load or to reach a recessed rim or floor joist from the outside without adding a separate header support. Typical egress window installations on homes with piered foundations require a steel header across the top section of the window. For homes with finished basements, this means messy, expensive interior demolition. In addition, the steel header required in a typical egress window interferes with the installation of drywall studs and doesn’t allow for a smooth finished trim.

The ExoFrame’s engineered design works equally well on homes with piered foundations and continuous footer foundations. The superior load-bearing capacity of the ExoFrame eliminates the need for a separate header, and allows for a quick and clean installation from the exterior of the home.

Brighter Basements ExoFrame egress window system with butyl gasket aplied

Reliable Year-Round Installation

Because the ExoFrame requires minimal caulk and no paint or adhesives, your egress window can be installed equally well in winter or in summer.

The ExoFrame is installed using a non temperature-sensitive gasket.

The integral design and easy installation means the home is open to the weather for only a short period of time.



no maintenance required for Brighter Basements ExoFrame egress window system

Minimal Maintenance Hassle

The sleek, single-piece design of the ExoFrame virtually eliminates the lips, joints, and edges of a traditional wooden frame and wood exterior trim.

With no place for moisture to collect, it’s nearly impossible for water to seep behind the frame and cause rotting, damage and leaking.

structural steel ExoFrame replaces traditional wood exterior trim

Exterior Trim Eliminated

Conventional installation of an egress window requires additional exterior wood trim to seal out the elements. This high-maintenance trim in a naturally damp environment requires caulk, glue, and paint, all of which must be maintained seasonally on an ongoing basis.

By design, the steel ExoFrame is secured into the opening with plated pins and a butyl gasket directly against the foundation wall.

By sealing the installation from the inside out rather than the outside in, the ExoFrame offers a confident and worry-free seal that is highly compatible with fiberglass, vinyl or aluminum-clad wood windows.

  • "They have been great. The window was done quickly, looks beautiful. I would 100% recommend."

    – Julie G. in Englewood, CO

  • “Brighter Basements has the superior materials, process and product, and they execute as they say they will.”

    – Nathan S. in Denver, CO