$161.10

Shipping calculated at checkout.

Made with care

Great value

Elegant design

Quality materials

This product is crafted with quality materials to ensure durability and performance. Designed with your convenience in mind, it seamlessly fits into your everyday life.

We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.

We are committed to ensuring a positive shopping experience for all our customers. If for any reason you wish to return an item, we invite you to reach out to our team for assistance, and we will evaluate every return request with care and consideration.

Product description

A Range of Custom Door Options

We have different options of cat doors for your window, including our special microchip 4-way rotary lock option.

Secure in All Weather

We add weather stripping along all four sides of our solid base, and have added brushing around the flap to keep out drafts and bugs.

Perfect for Catios

CatFlapFever is chosen by catio builders around the country, because of the quality of the products.

Giving Your Cat a Better Life

A safe way to relax, go outside, and return home whenever your furry friend decides to.

Super Easy Installation & Use

The Best & Easiest Purchase for Your Furry Friend!

See how easy it is to install in your window... your cat will be enjoying it within minutes! We are confident that you will love our Cat Flap Fever cat door window, and be enjoying it for many years to come. Trust the original and top rated custom cat door - with premium materials, full customization, and top level support.

Measure with Ease & Peace of Mind

In checkout customization, you can see the information needed. For the measurements, follow the 2 basic steps to find the length of your window. After your order, we will also message to confirm if you need any additional assistance!

What makes Cat Flap Fever windows better than other options?

You can find cheaper options of cat door windows, but the difference is in the quality and customization. As the original cat door window, Cat Flap Fever has many imitators which use cheaper materials made overseas, without the same level of support.
Can the window doors also work for dogs?

Sure - we also love dogs and have many happy canine customers! The doors are perfect for puppies and smaller dogs, however for larger breeds they might not be able to fit through as well.
Does Cat Flap Fever doors work in all windows?

Just about! Our design fits vertical or horizontal double hung, sash, awning, hammond or slider windows.
I live in a cold climate. Will this make my house chilly in winter?

We add weather stripping along all four sides of our solid base, and have added brushing around the flap to keep out drafts and bugs. We created this product while living in Chicago, so it is weather-tested and approved!
I've seen expandable cat door window inserts. What makes your solid base better?

We've found that the expandable versions use a hollow, flimsy base that didn't stay expanded and often fall out of windows. In addition, the expandable design creates a space that allows drafts and mosquitos into homes.