# Extra-Large Dog Door Installation in a Sliding Glass Door

Location:
Frederick

Services:
- Door Replacement
- Pet Door Installation

Summary:
Installed an extra-large dog door directly into the glass of an existing sliding patio door, providing convenient outdoor access while maintaining the door’s functionality and appearance.

Content:
This project involved installing an extra-large two-flap dog door directly into a custom glass panel in an existing sliding patio door. The original glass was replaced with custom-shaped, tempered Low-E safety glass designed specifically to accommodate the XL pet door.

One of the most important parts of this installation was customizing the glass thickness and overall configuration to fit the existing patio door system. The new glass and pet door were carefully engineered to provide the necessary clearance, allowing the sliding panel to continue moving properly alongside the panel containing the pet door. This means the homeowner can still slide the patio door open and use it normally whenever they want to walk outside.

Our installation included removal of the existing glass, preparation of the door frame, installation of the custom-cut tempered glass, secure mounting of the XL dog door, professional sealing, adjustment, and final testing. The completed system provides convenient outdoor access for a large dog while preserving the functionality and clean appearance of the existing sliding glass door.

All Dwelling Solutions provides custom pet door installation in sliding glass patio doors throughout Maryland. We can install dog doors in specially fabricated glass when standard insert panels do not provide the fit, appearance, or functionality the homeowner needs.

**Want to see more examples?**

Explore our completed[ pet door installation projects](https://www.allds.com/projects?service=pet-door-installation) featuring different door and glass configurations, installation methods, pet door sizes, and brands.

Customers are also welcome to visit our [<span style="text-decoration: underline;">Rockville showroom</span>](https://www.allds.com/showroom) by appointment to explore different patio door styles, glass options, and door systems that we install. Our team can help determine whether installing a pet door in the existing glass or replacing the complete patio door is the best solution for your home.

**Need an XL dog door installed in your sliding glass patio door?**

[<span style="text-decoration: underline;">Contact All Dwelling Solutions s for a professional evaluation and free estimate.</span>](https://www.allds.com/contact)