Cat Door Window Insert
No need to cut a door or window! Installs in minutes. Removable. Available in solid PVC or Plexiglass. That's how this product was born!
Multiple flap options including large 4-way locking and microchip. After years of trying to find a cat door that didn't require permanent modifications to a door or window, I decided to create my own. Our Cat Door sits right in the window tracks. It installs in minutes and is completely removable. We use a solid PVC or Plexiglass base and a locking flap. Simply provide us with a window measurement
and select from different flap options including large 4-way locking and microchip. You can also select your flap location - left, right or center. Our turn around time is only 3 to 5 days once your specs are received. We LOVE our customers and we believe we have the happiest customers in the pet supplies business! There's no other product like this one. Our patent pending design provides the freedom your furry friend deserves - day and night! We use weather stripping to help keep a good seal around the window and we've added brush around the flap to help keep elements and bugs outside. If you're aren't purrrr-fectly satisfied with this product, we will refund your money. No questions asked.
10/01/2025
❄️ Drafty cat windows? They don’t just chill your paws — they can raise your energy bill too.
Luckily, keeping your home cozy and cat-friendly is easy with a few smart fixes. 🐾
Say goodbye to scratched-up doors and constant meowing with our top-of-the-line cat doors! At Cat Flap Fever, we're committed to providing the finest pet door solutions that blend seamlessly with your home and lifestyle.
Our PVC and Plexiglas cat doors for windows are not just about functionality; they're about elevating your pet's comfort and freedom while adding a touch of style to your space. With our range of custom options, you can ensure your pet's access is as unique as they are!
Experience the difference of quality cat doors and see why Cat Flap Fever is your go-to source for happy pets and even happier pet parents. Your fur baby deserves the best, and we're here to deliver just that! https://catflapfever.com/
09/24/2025
Thank you for sharing this amazing feedback! We love and appreciate our customers.
That’s a question we hear all the time—and the answer is simple: Not ours!
Every Cat Flap Fever insert is custom-cut for your window track and sealed with brush and foam weatherstripping on all sides. That means your kitty gets freedom, and you keep your home cozy, bug-free, and energy-efficient.
Check out this amazing customer catio set-up 😻. Our cat window inserts are designed to make catio access simple—no more opening doors or windows every time your cat wants fresh air.
✅ Easy access for your cat
✅ Perfect for catio set-ups
✅ Trusted by cat parents nationwide
In fact, most of our customers use their window insert just like this—for safe, hassle-free catio access. Plus, we’re proud to partner with some of the best-known catio companies in the industry.
👉 Visit our website or give us a call at 706-619-1800 to learn more about our catio partnerships. https://catflapfever.com
09/11/2025
🇺🇸 Today we pause to remember.
On September 11th, 2001, our world changed forever. We honor the lives lost, the heroes who ran toward danger, and the families whose strength continues to inspire us.
Though we are a small family business, our hearts are with everyone reflecting on this day of resilience, unity, and remembrance. May we never forget the importance of compassion and community—values that guide us daily. ❤️🤍💙
09/10/2025
🌟 Having an amazing product is about more than the product itself—it’s about the people behind it.
At Cat Flap Fever, we’re proud to be a small, family-owned business with a hardworking team dedicated to crafting the best cat window inserts on the market. 🐾✨
We put our heart into every detail, from design to customer service, because your pets (and your homes!) deserve the very best.
And to our incredible customers—thank you for supporting our dream and helping us grow. You’re the reason we get to do what we love every day. 💙 https://catflapfever.com
09/05/2025
🌍❤️ International Day of Charity ❤️🌍
At Cat Flap Fever, our mission goes far beyond creating the best custom cat doors and window inserts for your pets. 🐾 Every order you place helps support animal rescue groups that work tirelessly to give abandoned and vulnerable animals a second chance at life.
By choosing us, you’re not just giving your pets freedom and comfort—you’re also opening the door to hope for animals in need.
Today, on International Day of Charity, we want to thank YOU—our amazing community—for being part of this journey of compassion. Together, we’re proving that small choices can make a big difference. 💕 https://catflapfever.com
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We scoured the internet trying to find a cat door that didn’t require permanent modifications to a door or window and couldn’t find anything that worked for us, so we began creating our own. We came up with a good solution but wanted to make something great so we could make it available to others with our same passion for animals. We are thrilled with what we created and we hope you will be too!
Our cat door window insert is custom built to sit in your window tracks. It installs in minutes and is completely removable. We use a solid PVC, weather-resistant base made from recycled materials, and a locking flap. We also offer plexiglas options, microchip flaps, and extra large flaps for our larger furry friends. 💜 Our turn around time is approximately 2 to 3 days once your specs are received. We LOVE our customers and we believe we have the happiest furry friends in the pet supplies business! There's no other product like this one. Our patent pending design provides the freedom and safety your furry friend deserves - day and night! We use weather stripping to help keep a good seal around the window and we've added brush around the flap to help keep elements and bugs outside. This product is also great for catios!
Help transition an “outdoor” cat into your home with a cat door window insert. Our three furry family members spend 90% of their time inside and never stray far from the porch. We rest easy knowing they can get out of the cold and out of danger. We love our new family members, Penny, Booker, and Kittles. Penny was born outside and found her way through our door for food, warmth, and loads of love. Booker is a beautiful and sweet boy who was left behind when his owners moved, and Kittles was a feral who now hangs out on our couch. All three came from completely different beginnings but are now living their best lives; just as they deserve.
We know it’s best to keep cats indoors when you can, but sometimes it’s simply not possible. We believe this is the best option for a stray or feral cat that rejects being kept inside. Trust us, we learned that the hard way. After throwing away furniture, we knew this was the best option for us and for our sweet felines.
We make dog doors too! Check out our website for more information at catflapfever.com. We donate to animal welfare for every door sold. Thank you for helping us help animals in need. We truly appreciate your business.