What Is Flush Mount Glass and Why Do Builders Use It?

If you’re deep in a custom build or restoration, you’ve probably heard the phrase flush mount glass—but what exactly does it mean? And more importantly, is it right for your project?

This guide explains what flush mount glass is, how it differs from factory-style glass, and why so many builders are upgrading their classics with it.

What Is Flush Mount Glass?

Flush mount glass refers to a glass installation method where the glass sits level and tight with the surrounding sheet metal—eliminating the visual “step” created by gaskets and stainless trim. Instead of using a rubber channel or trim ring to hold the glass in place, flush glass is bonded directly to the car with modern urethane adhesive, similar to how most new vehicles are built today.

What Does It Look Like?

The result is a smooth, uninterrupted line from roof to cowl, or pillar to bed rail—perfect for builders who want clean bodylines and a modern silhouette. It’s especially popular on high-end restomods, SEMA cars, and pro-touring builds where every detail is considered.

Why Do Builders Use Flush Mount Glass?

• Cleaner Aesthetics: Without stainless trim or bulky rubber channels, the glass becomes part of the body—visually seamless.
• Improved Sealing: Properly installed flush glass can offer superior weather resistance using modern bonding agents.
• Trim Delete: It allows builders to shave and simplify bodylines, often deleting factory chrome or stainless trim altogether.
• Customization: Flush mount kits can be color-matched, blended into shaved drip rails, or integrated with custom bodywork.

When Is Stock Glass a Better Choice?

While flush mount glass has visual and functional benefits, it’s not always the best fit. For restorations aiming for factory accuracy or cars competing in OEM-judged shows, stock-style glass with original trim is the way to go. There’s nothing wrong with that—it’s just a different approach to the same passion.

Fesler Flush Mount Kits: Built for Classic Platforms

Fesler’s flush mount glass kits aren’t generic—they’re modeled in CAD specifically for each vehicle, ensuring tight tolerances and proper fitment. That’s one of the reasons top builders across the country use Fesler parts to finish their flagship cars.

Every kit is designed, prepped, and produced in Arizona, and includes everything needed for a full upgrade:

• Model-specific glass (windshield or rear)
• Gel-coated fiberglass surround panel
• Urethane bonding materials
• Installation instructions or support when needed

Explore Fesler Flush Mount Kits

Popular Platforms We Cover

• 1967–1969 Camaro
• 1970–1972 Chevelle
• 1967–1972 C10 Trucks
• Nova, Impala, OBS trucks, and more

Each system is tailored for the body lines and curves of your specific build—not a universal fit or a patchwork solution.

Need Help Choosing?

If you’re wondering whether flush mount glass is the right call for your project, we’re happy to help. Whether you're building a high-end custom or just want a cleaner look, our team can walk you through the best setup for your vehicle and goals.

Contact Fesler for Fitment Help