Cat Door Window Insert - Solid PVC Base

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Please select center for vertical base. Flap will be positioned at the bottom.
Please select range. We'll reach out to you for your exact measurement once you order.
Please specify window track width. Our base is 5/8" thick. We can taper the ends to accommodate more narrow tracks.

Cat door window insert - Solid PVC Base Weather resistant, white, solid PVC base made with recycled materials and a locking flap.

Our standard 6"x 6" locking flap is included in the price and it accommodates most cats up to 15 lbs. Other flap choices include Cat Mate Large 4-Way locking flap for our larger furry friends as well a Microchip Cat Flap. You can select to upgrade using a drop down option. Let us know if you have a flap choice not listed and we'll 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 & rescue around the world for each door sold.

❤️ Family Owned & Operated. 

👌 Worry-Free Ordering: we send measuring instructions in your confirmation email. Just send us your final measurements and we'll get started right away! Make sure to check your SPAM folder.  

🚛 Shipping: We ship using UPS.  Our turnaround time is 7 to 14 days.  

Need help? Text or Call (706) 619-1800 or email at
(We LOVE communicating with our customers). Please see our Measurement Tutorial for assistance.


We provide free UPS ground shipping anywhere in the continental United States and $34.99 for Hawaii Alaska and Canada. Our turnaround time is approximately 7 to 14 days.

How to Install

Customer Reviews

Based on 85 reviews
perfect easy solution!

I have an odd size window so I couldn't find a cat door to fit. Cat Flap Fever was the perfect solution! They provide good instructions on measuring, fast shipping, and use good materials. It was a VERY tight fit - took a little effort to get it in, but it's nice and snug now. I might suggest shaving 1/32 off of your actual measurement. Still, I definitely recommend this product!

Hi there! Thank you so much for taking the time to leave a review. We're thrilled to hear that our Cat Door Window Insert was the perfect solution for your window. We take pride in providing clear instructions, fast shipping, and quality materials for our products. Thank you for the helpful tip about shaving off a bit of the measurement - we'll definitely keep that in mind for future customers. We appreciate your recommendation and hope your furry friend is enjoying their new cat door! Have a purr-fect day!

Juanita T.
Perfect fit

The cat flap door fit perfectly and so well made . The customer service was outstanding!

Great product

After placing the order I was contacted within 3 days requesting follow-up information. I provided the information and was contacted within hours letting me know that I would be contacted again when the order shipped.
Very pleased with the customer service, the prompt delivery and the quality of the cat flap. My cat quickly learned how to use it and she is enjoying her autonomy. Highly recommend the cat flap.

Denise D.
Great product

I can't believe how great this item is. My cats go in and out with no problem. The staff was extremely helpful when I called to make sure I had the correct measurements.
I received it just like they said and especially it is made in the USA.

M H.

We have all glass doors in our home so a traditional pet door was not an option...this is fantastic! They made instructions for measuring clear and product is perfect!