• Custom built to fit your sash window according to your measurements
• Features clear safety glass that enhances insulation, keeping indoor temperatures comfortable year-round.
• Offers a non-permanent setup ideal for renters, requiring no alterations to windows.
• Available in heavy-duty extruded aluminum or vinyl, ensuring longevity and style flexibility.

The Liberty Custom Cat Door for Sash Windows delivers a seamless, non-permanent pet access solution tailored precisely to your window's dimensions. Engineered with energy-efficient safety glass and heavy-duty frame materials, it provides your cat independence while keeping your home secure and weather-tight.

Engineered for Custom Window Fit
Custom built to your exact window opening dimensions, this insert installs effortlessly without requiring permanent modifications to your window frame. The spring-loaded design offers up to 3-1/2" of built-in height adjustment for a snug, draft-free seal.

Energy Efficient Safety Glass
Built with durable single-pane safety glass, the insert preserves natural light and clear outdoor views while maintaining indoor thermal efficiency throughout every season.

Tool-Free Installation
Designed for instant setup and removal, the spring-loaded tension mechanism allows you to slide the insert directly into your existing window track without drilling or hardware alterations.

Durable Aluminum & Vinyl Options
Select between heavy-duty extruded aluminum or flexible vinyl frames to complement your home decor. Aluminum models fit window tracks at least 1" wide, while vinyl models require tracks at least 1-1/2" wide.

Integrated Security & Control
Every door includes a sturdy locking cover that slides into place, giving you total control over your cat's access and added peace of mind when keeping pets safely indoors.