
Best-Selling Pet Doors
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.