Family owned & operated in the U.S.A. We donate to animal rescue for every door sold.

CAT DOOR WINDOW INSERT - PLEXIGLAS 1/4" Starting at..
CAT DOOR WINDOW INSERT - PLEXIGLAS 1/4" Starting at..
CAT DOOR WINDOW INSERT - PLEXIGLAS 1/4" Starting at..
CAT DOOR WINDOW INSERT - PLEXIGLAS 1/4" Starting at..
CAT DOOR WINDOW INSERT - PLEXIGLAS 1/4" Starting at..
CAT DOOR WINDOW INSERT - PLEXIGLAS 1/4" Starting at..
CAT DOOR WINDOW INSERT - PLEXIGLAS 1/4" Starting at..
CAT DOOR WINDOW INSERT - PLEXIGLAS 1/4" Starting at..
CAT DOOR WINDOW INSERT - PLEXIGLAS 1/4" Starting at..
CAT DOOR WINDOW INSERT - PLEXIGLAS 1/4" Starting at..
CAT DOOR WINDOW INSERT - PLEXIGLAS 1/4" Starting at..
CAT DOOR WINDOW INSERT - PLEXIGLAS 1/4" Starting at..
CAT DOOR WINDOW INSERT - PLEXIGLAS 1/4" Starting at..
CAT DOOR WINDOW INSERT - PLEXIGLAS 1/4" Starting at..

CAT DOOR WINDOW INSERT - PLEXIGLAS 1/4" Starting at..

Regular price
$159.00
Sale price
$159.00
Regular price
Sold out
Unit price
per 

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1/4" Plexiglas Base with locking flap.  Our standard plexiglas base is 10" cut to the width or height of your window. We recommend plexiglas for base sizes up to 48" in order to protect the integrity and stability of the door.  For doors longer than 48", PVC is the best option.  

Our standard 6"x 6" locking flap is included in your purchase price and will accommodate most cats up to 15 pounds. We also offer various flap choices including Cat Mate Large 4-Way locking flap for our larger furry friends as well a Microchip Cat Flap.  You can select the upgrade during checkout by using a drop down option. Let us know if you have a flap choice not listed and we will accommodate the request to the very best of our ability.  

🐱  Pet Door For The Window - Custom cut to sit in your window tracks. Installs in minutes. No tools required. Removable.

💜  We Donate to animal welfare and rescue around the world for every door sold.

❤️  Family Owned & Operated. 

🚚  Ships in 5 to 7 days. 

👌  Worry-Free Ordering: We'll send a confirmation email with measurement        instructions. Just send us your final measurements and we'll get started right away! 

Need help? We LOVE communicating with our customers. Text or Call us at (706) 619-1800 or email us at info@catflapfever.com.

Please see our Measurement Tutorial for assistance.

Customer Reviews

Based on 61 reviews
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Larisa Warhol
Great cat door!!!

I love this window insert with the cat flap door. I had tried a cheaper adjustable option that didn't work well in my window and didn't have a secure flap. I decided to spend the extra money - it was easy to submit my measurements, the windows arrived quickly and fit perfectly. The cats were using it within 2 days. I even ordered a 2nd one for another window in the house. The actual flap has a great magnet and closes completely. Also, we've had several bad storms and the plexiglass has created a good seal so no water has gotten in the window. The plexiglass is also really clear so I haven't lost any light in the room either. I would highly recommend!

J
Jerry Hare
Exactly what i wanted and needed

I looked at a lot of the offered cat door inserts and evaluated them against my needs. This door and window insert fit my needs and the price was within range. I measured and re-measured to make sure i understood how it was supposed fit and install . I finally felt confident and made the call and spoke with Liz. She took the measurements and said the insert should be sent and received in about one week. That is exactly what happened. I received the package and had the insert installed within 15 minutes of receiving it . It fit so nicely and looked so good that my wife and I were both impressed. We are happy and out cat is very pleased. The cat door itself is very good quality and quiet.

S
Susan Paluzzi
Exactly what we needed

I moved into an apartment from a house, so my cat, Mitts, is now indoor only. In my apartment, I have a window from the living room to a screened in porch where Mitts can walked all around the inside ledge. The window insert is needed when we need heat or air conditioning. I decided to go the extra mile and purchase the plexiglass. Sure, it's a bit pricey. But, it fits perfectly, easy to put in, measuring was a piece of cake, and it works great. I like the plexiglass because it looks good visually and doesn't stand out like the solid version. The seal is as good as it can be, so I'm really satisfied. Mitts used a dog door at our house - she needs a little encouragement as this version is smaller.

b
barbara wysner
Perfect kitty door

Love it. Arrived fast. Fits perfect. Now just train my babies to go in and out.

A
April
Wonderful!

Thank you for the wonderful customer service! This window insert is super profesh. It's a lot clearer than I thought it'd be. You almost can't even tell it's there!

These folks were so nice in taking a custom order from me. I needed specific measurements to line up with an outside catio entrance through my wonky old aluminum window & storm window. Works like a charm!