Family owned & operated in the U.S.A. We donate to animal rescue for every door sold.We offer scratch and dent discounts.


 Cat Flap Fever Industries

We hope our reviews are helpful. We think we have the Best Customers On Earth and we want to pay it forward by providing you with not only a Great Product but Exceptional Customer Service. We would love to earn your business!

We also wanted to let you know that we make a donation to Animal Welfare and Rescue for every sale so thank you for helping us help animals in need.  

The Original and simply the best Custom Cat Door for the Window with Locking Flap. Our standard 6"x6" flap is included and we also offer a larger 8"x9" size for our husky furry friends as well as Microchip.   

Based on 621 reviews
Cat Flap Fever Industries
Craig Bovenizer
We visited the store

We drove from Griffin Ga up to the store. I was glad we did. We were greeted and shown how the window would be made. Very nice experience. Great folks. The window arrived 2 days later and installation was very easy. Thank you so much.

Second going on third window

The Cat Flap folks are awesome. I just installed my 2nd cat window door, and already planning for a third. I replaced a product that was leaking and running electric bill up - with these products, I can feel an immediate difference.
I love supporting family business, and they are so kind and very patient when I had surgery in middle of my order and couldn’t get measurements right away. The shipping is quick and installation is easy.

Cat Flap Fever Industries
Janice Sorensen
Thomas Catkins is happy

Our old boy, Thomas Catkins had been an outdoor barn cat his whole life and is thrilled with his new door and retirement to indoor life! The window came cut perfectly to the specs. I think it would be good to advise people that they need to stuff something at the top of the lifted window now as cold air will come in. Its not something you think about right away. Thanks.

Cat Door for the Window

We needed away for our cat to get outside onto the "catio" we built for him. After putting in the cat door window and he discovered it, he is in and out as he wants. It has been a great find for us. Getting the Cat Door for the Window was easy and less expensive than we thought the process would be.

Cat Flap Fever Industries
Melinda Wheatley

We love our new cat flap! The company was quick to respond to custom order and had it shipped in no time! Great customer service. Highly recommend.

I really like this door.

This door works great. I love not having to let my cats go in and out. They can do it on their own. The door is also good about not letting the wind, water, snow, etc. into the house.

The service was great too. We were leaving on a trip and they got the cat door too us right away.

If I ever need another cat door I will buy it from them again.

Cat flap window

We needed a w ay for our cat to get in and out of the "catio" we built for him. The cat flap window we purchased to put in the kitchen window worked very well. It took our cat only a short time to know how to use it as a way to get outside. Thank you for providing this for us.

Cat Flap Fever Industries
Lauren Bringhurst
Perfect fit!

I needed a cat flap so my kitty could get in and out of his catio. Instead of me having to open and shut the window now he can go whenever he pleases. This helps keep cold/hot air out and bugs! There is also a lock that is helpful when I’m not home or at night. We added weathering tape to the sides to make sure it was snug. Very happy with this purchase! Was prepared and delivered faster than I expected.

Cat Flap Fever Industries
Melinda Langston
Replacement door

Needed a replacement door for my cat window that I’ve had for six or seven years. Sent a picture and they sent me the correct door (although UPS took its sweet time!). Fit perfectly and easy to install! No more drafts, and Miss Maisy, and owners, are happy once again !


Great “cat flap” for for 10 pound dog. Fits perfect into our vertical window.

Love my cat door.

My cats love coming in and out of this door.

Best thing I’ve bought!

Oh, I absolutely love it! Definitely five stars! I live in an apartment and I couldn’t put anything through a wall or a door so I thought there’s got to be solution out there and then I found this company. I put it in my window and all of two minutes at the most, plus I added to tension rods, small ones to the top of the window to prevent anybody from opening it. I bought the extra thick plexiglass because of Kansas weather and the locking flap with the ID tag for locking and unlocking by the cat. This is made my life so much easier and the cat loves it going in and out on her own and not waiting for me at the door. I bought the clear plexiglass versus the white PVC that goes in the window because I felt the cat should be able to see in and out before she uses the door flap and I was right. These two items cost a little bit more but well worth it. I can’t say enough about this product. I just absolutely love it. The only thing I did was added more adhesive weatherstripping around all four sides to help with the cold air slipping through.


Product was a perfect solution as I rent my home and wanted to give my cat freedom without leaving doors open to other critters! Custom cat flap arrived in just 5 days! My cat learned to use quickly within a couple days. I added a little extra insulation around the edges of the sill as I have a deep window track. Works great and my cat loves it!

Great solution

The sales rep I spoke with took her time to understand the pet window solution I needed. I received the purrfect cat door for NY feline. Exceptionally happy!

Great product

I absolutely love this product. The company was very helpful and flexible when it came to ordering and measuring for my project. I needed a cat flap for my cats to get into their Catio. My husband had built a box outside of the window which made it a little more complicated to install a flap that could swing freely. Liz did a great job of making it so that it fits perfectly. We have 7 cats, 5 of which use the Catio. We have had the window installed for about a week. So far 2 of the cats have figured out how to use the door, I am sure it is just a matter of time until they all figure it out. I did put some tape where the flap is not, one of the cats tried to go out there and bumped his head, hasn’t happened again. We are very happy with this and highly recommend it!

Very pleased with cat door

We love the cat door set up in our window. Just open window and insert plexiglass into window frame, pull top window down to secure it in tools needed. No blockage of view to outside. Fits perfectly. They made sure I was pleased with product and explained how to measure for accurate fit. Highly recommend this company for anyone needing pet entry and exit.

Cat Flap Fever Industries
Stacey Wittenberg
Top Notch Product and Service

Directions to order were simple and I promptly received shipment statuses on my CatFlap, plexiglass window cat entrance. Top quality material and fabrication.
Our cat seems to enjoy the freedom of i Ming and going as she pleases!

Great service and product

I called with the dimensions of my window and they had the "window door" and attractive, the had it out the next day!!! It is great.
NB if your window slider has grooves, ask how to measure it. This is a solid product and won't bend to fit when you put it in.


Very impressed with the quality of my cat door. My babies love it. I noticed some people were complaining about lack of response by the company. I found text messaging to be the best. They replied timely.

My window fits perfectly. I received it within 2 weeks of ordering.

I would definitely order from Cat Flap Fever again.

Cat Flap Fever Industries
Madison Peschka
Worth the money!

Purchased with the microchip activated cat flap and window security locks. Flap fit perfectly (I won’t lie, it took some muscle to get in) in my window and the locks were easy to install and are secure. The best part, even my very large, 17lb cat can fit through it! (He’s not obese, just big). He hasn’t figured out that he can use the door to come back in, but that might have more to do with the kittens being inside the house than anything else lol. The kittens are eager to use the door too, but have to wait for the rest of their shots. The function of “in only” on the microchip door is perfect for keeping the kittens in and allowing my adult cat to come inside (if he wanted to). These cat flaps are the perfect solution for those who don’t want to/can’t cut a hole in their doors or walls. Very pleased!

Excellent product, shame about the customer service

I have an odd-sized window so I thought this would be a good way to get what I needed. The door, now it's here, was easy to install, fitted well, and isn't drafty. It's a good product. However, ordering it took multiple phone calls, texts, and emails over a couple of weeks. I would have given up and used a different company, but trying to get another door in the right size would have been tricky. So, if you have the time to chase them, you'll end up with a good cat door. Eventually.

Amazing Service and Product!

Wonderful customer service. Answered my numerous questions. Ended up purchasing the plexiglass version and could not be happier!! Cat took the flap in stride!

The Cat Flap works great for our cats needs

Our cat loves to go outside and he use to have to wait to come back inside when we were at home. Now he has freedom and safety from bad weather, loud noises and whatever else might scare him. He comes and goes during the day an seems really happy about it!

Wonderful Cat door!

I looked around the Internet for a cat flap door to fit in a pretty wide window that opens up and down and goes onto our screened in porch. This door seemed reasonably priced and attractive. I was a little nervous about having to get a correct measurement, but the instructions were clear and when I revised my measurement after I ordered, the customer service was responsive and pleasant. When the door arrived, it fit perfectly and was easy to install. I also bought the defender locks to keep the window locked in place after putting the the board with the cat door in place. I like the faux wood grain on the outside of the board and how the flap door is tinted so you can't see inside to the room. Our siding is white, so it matched well. My cat uses it easily to come and go when he pleases though it can easily be locked too. Thank you!

Cat Flap Fever Industries
Stephanie Moses
Tight Fit

After a bit of a struggle to fit it in…I’m delighted. Thanks for providing a product with superb quality. It’s becoming quite a rarity to find anything made to last. Thank you.