
Best-Selling Pet Doors
A premium sliding glass insert with a magnetic-sealed Endura Flap, insulated glass panel, and secure compression fit designed to deliver everyday pet access without permanent modification.
Regular priceFrom $579.99 USDUnit priceEndura Flap Vinyl Sliding Glass Dog Door
Comfortable patio door pet access that blends into vinyl sliding glass doors with a track matched panel fit, pairing a single Endura Flap that suits a wide range of pets with a three sided magnetic seal that helps reduce drafts.
Regular priceFrom $579.99 USDUnit priceA complete replacement flap kit designed to restore seal, swing, and magnetic closure so your Endura Flap performs like it should.
Regular priceFrom $79.99 USDUnit priceEndura Flap Severe Weather Vinyl Sliding Glass Dog Door
Top-tier insulating pet door panel to give pets outside access even in the toughest climates, combining two dual-layer Endura Flaps, a dual-pane Low-E glass pane, all packaged in a sleek vinyl frame for a clean integrated look.
Regular priceFrom $799.99 USDUnit priceThermo Sash 3e Pet Door for Sash Windows
Give cats and dogs easy window access without sacrificing comfort using an insulated sash insert with magnetic sealing, spring-loaded compression fit, and built-in locking cover.
Regular priceFrom $419.99 USDUnit priceEndura Flap Cat Door for Horizontal Sliding Windows
Gives your cat easy, secure window access with an adjustable sliding window insert, insulating glass, and a weather-sealing flap designed for everyday comfort and flexibility.
Regular priceFrom $369.99 USDUnit priceThermo Sash 3e Cat Door for Sash Windows
Give cats and dogs easy window access without sacrificing comfort using an insulated sash insert with magnetic sealing, spring-loaded compression fit, and built-in locking cover.
Regular priceFrom $419.99 USDUnit priceEndura Flap Dual Pane Glass Thermo Panel 3e
A dual-pane sliding glass insert with Low-E insulation, a magnetic-sealed Endura Flap, and a secure compression fit designed to maintain comfort and security without replacing your door.
Regular priceFrom $749.99 USDUnit priceEndura Flap Single Flap Pet Door for Thin Doors
A purpose-built pet door for very thin doors, partitions, or walls, with a tight magnetic seal, flexible all-weather flap, and durable aluminum frame designed for reliable everyday use.
Regular priceFrom $279.99 USDUnit priceEndura Flap Wall Mount Pet Door for Thick Walls
A wall pet door for thicker wall construction that keeps the opening more insulated and secure with Endura Flap sealing performance, a telescoping tunnel built for deep installs, and durable aluminum framing for long term ownership.
Regular priceFrom $379.99 USDUnit priceEndura Flap Wall Mount Pet Door
A built-in wall pet door engineered for extreme performance—featuring rustproof aluminum construction, dual-layer insulated flaps for superior weather protection, and a telescoping tunnel for a clean, precise fit—all backed by a lifetime warranty.
Regular priceFrom $339.99 USDUnit priceEndura Flap Door Mount Pet Door
A premium door-mounted pet door with a tight magnetic seal, insulated dual-layer flap, and durable construction designed to protect comfort, efficiency, and security in everyday use. Available in single and double flap options.
Regular priceFrom $279.99 USDUnit price
Frequently Asked Questions
What’s the difference between the Endura Flap Dog Door for Doors and the Endura Flap dog doors for Walls?
You can read about the difference between a dog door for doors and a dog door for walls here.
What if I want to close the pet door at night?
Every Endura Flap Pet Door comes with a Locking Cover to block access to the flap when needed.
Are replacement flaps available?
Yes, we carry Replacement Endura Flaps. See our full selection of Replacement Parts and Accessories for more replacement options.
Can cats and dogs share their Endura Flap door?
Yes, cats and dogs can share their door. However, we do not recommend flap sizes larger than the Small for cats, since these flaps are so insulating and heavy-duty.
If you need a larger flap size for your dog, you can adjust the magnet strength so that your cat can use the door too. Keep in mind that this will reduce the wind resistance of the flap. If you have a very large dog but want a door for your cat as well, you might consider installing another Endura Flap for Your Cat with a small flap size.
What is the difference between the standard Thermo Panel sliding glass dog door and the dual pane Thermo Panel 3e sliding glass pet door?
Both doors feature the award-winning Endura flap, but the dual pane Thermo Panel 3e is made with dual-pane glass and the standard Thermo Panel is made with single-pane glass. This means that the dual pane Thermo Panel has a higher insulation value than the standard model.
While you don’t need to match your panel’s glass with that of your sliding door, doing so will make for a cleaner aesthetic. You can read more about the difference between single and dual pane glass on our blog.
Why aren’t the Thermo Sash Window Pet Door and other window pet doors available in larger sizes?
Most windows are not big enough to accommodate the larger pet door sizes. Plus, due to their position in the home, window pet doors are best used for cats who are entering the backyard and an enclosed catio.