Our cat quickly started using the cat flap and now she and we have independence to come and go! We were impressed with how good the plexiglass keeps out the cold. She loves laying on the sunny perch. Our order came fast and was of great quality. We highly recommend this product.

I received my cat flap and am extremely satisfied with the product. It fits perfectly in the window. I just have to help my cat get used to opening it himself. But I just wanted to say thank you for doing such a good job.

I have a cat door for my patio door but recently a stray(no one in my area claims him) moved in and has claimed that as his, so my other cats can't go out. So I was looking for window options.

I have been hesitant about this option because of one I got years ago that was never weather tight. But I found Cat Flap Fever and read all the reviews so figured I had found what I needed. Plus they ship UPS so I wouldn't have to feud with other big carrier who loses my packages.

I ordered two window inserts so the other cat can't guard more then one. They were sent out quickly and arrived as stated. So on my day off I started to put them in the windows only to have problems. They wouldn't go in and yet all the measurements matched. So I called and the help I got was awesome. I found once I did more measurements that the windows weren't quite square so using my Dremel I careful filed down the edges and reinstalled the insulation. Within an hour I had them installed and my other cats were going back outside. Of course now they act like they can't figure out how to come back in with out kitty treat bribes.

I would suggest, if you live in an older home to take a couple of measurements or use a framing square to check your windows but the PVC is super easy to work with.

This is a wonderful company to deal with and a great product. Thanks!!!

We were gifted a kitty cat, and the cat flap has been a game changer. She basically has her own house and we were having trouble with other cats coming in and marking up “her” house and eating her food. Made us sad and disgusted (nasty cats) :)
So I decided to try the cat flap with the collar that opens the flap. Wow, what a game changer.
She is a happy cat and I’m a happy customer!
We keep a camera on the window and have been entertained by watching the neighbors cats trying to get in. 😂
Thank you for creating such a useful product!

I live in a park model from the 80's and none of the ready built window inserts would fit in my window frame. I am so glad I found Cat Flap Fever! I ordered the regular sized window flap in the plexiglass and with JoJo's follow up questions, I got measurements correct, and the insert fit perfectly. The door flap works as stated and now my cat can get in and his enclosure any time. He loves it!

This was one of the greatest things we could do for my mom's cats.
They love being able to come and go as they please.
I love that the litter box is less work.

I purchased the plexiglass cat flap. All along the customer support was great, they even contacted me to rectify a mistake I made while measuring the window frame. The delivery was quick, it was a perfect match and it looks amazing. Once again, you get what you pay for.

It's a really solid insert, and the customer service is amazing. Mine was a hair too big and I had to shave it down, and they walked me through it and reassured me that if it still didn't fit, I could return it. Thankfully, it fit!

Looks great and fits perfectly. They were very helpful in the ordering and sizing process.

We have 2 two year old cats. And they love our screened porch. But we were the ones who had to let them in and out constantly. A friend told me about cat flaps. So I found Cat Flap Fever. We ordered it, came very fast and tried to install. We were afraid to bend and push it into the window, but you assured us it's ok. You are heroes to our 2 kitties. It only took a couple of days for them to become confident at going in and out. Now they can decide (and they do) when to go in or out. Thank you so much.

I operate a cat sanctuary in Minnesota that houses and cares for 90 to 100 cats. The number fluctuates due to adoptions and of course new residents. The sanctuary has approximately 1/4 acre fenced, all the cats have access to outside all year around. The window inserts purchased from Cat Flap Fever have allowed this to happen and still keep the buildings tight enough for heating purposes. The sanctuary has 17 window insert flaps and plan on purchasing more in the very near future, as we have added a new addition to our current building. The product is superior to any other cat door used here at the sanctuary in the past. The staff is awesome at Cat Flap Fever. The Evergreen Cat Sanctuary residents strongly recommend Cat Flap Fever!!

My Cat Flap window inserts are exactly what I needed, and exactly as advertised. They both fit perfectly, and "cat training" has begun... For a little extra security I'm going to cut acrylic dowels to fit above the windows to prevent the windows from being opened easily. Because they are inserted in windows, other unwelcomed creatures are not likely to crawl through. Since cats can jump so high I just had to provide objects they could jump onto that are too high, and too slick at the bottom for other creatures to climb. Now my kitties can come, and go and I don't have to leave anything open and unsecured, or worry about them at night if they didn't come in before the door was closed and locked. This is the perfect product for my needs, and the customer services was outstanding!