$419.99 – $549.99
The Endura Flap Thermo-Sash 3e™ Sash Window Cat Doors include:
| Height Adjustment Range | 22 in. – 25 in., 25 in. – 28 in., 28 in. – 31 in., 31 in. – 34 in., 34 in. – 37 in., 37 in. – 40 in., 40 in. – 43 in., 74 3/4 in. – 77 3/4 in., 77 1/4 in. – 80 1/4 in., 93 1/4 in. – 96 1/4 in., Custom – 80 1/4 in. – 93 1/4 in., Custom – Over – 96 in., Custom – Under – 74 3/4 in. |
|---|
It’s your cat always itching to go outside? If so, then you can reap great benefits by installing one of our amazing cat doors for windows!
Installing a brand new cat door flap window insert from Pet Door Products can make your cat the happiest feline in the world. Take a look at these key advantages of installing a Cat Door Insert for Sash Windows:
Choosing one of our incredible car doors can take your home to the next level
Many cat owners find it challenging when trying to decide if they want to invest in a cat door for windows. To help you make this decision, you’ll want to weigh the pros and cons. In addition, it really depends on what type of cat you own. With active cats who are always on the go, buying a cat door is the smart decision. Not only will your cat love you for it, but you’ll also never have to open the door for your cat again! Sounds pretty great, huh?
Take a look at how our super-simple cat door installation process works:
By using a putty knife or another similar tool, you’ll want to remove the glass stops from your door. First, insert the tool into the seam between the stop and door frame. Gently tap, then you should be able to remove the stop. You’ll want to set these aside in a safe place as you’ll need them later on.
You’ll then want to separate the glazing tape from between the glass and frame. Slide a putty knife in between the glass and frame on the backside of the door, then move all the way around the frame until the glass detaches.
After setting the old glass aside, you’ll then want to use a razor or putty knife to scrape away the old glazing tape that’s found near the inside edge of the door frame. Then, apply brand new tape in the same location around the frame.
The next step is to carefully insert the new cat door. Cat doors sliding glass doors can be heavy and very fragile, so make sure you take extra care. Be sure to insert the bottom first, then work your way upward.
Next, reinsert those four glass stops that you set aside earlier. Use a soft mallet to tap these back into place.
The final step is to replace the door sash. Be sure to insert the top of the door first before lifting the panel over the bottom lip. And that’s it!
Pet Door Products makes life easier for pet owners by providing a cat door window insert that fits right into existing sash windows. This means that pet owners can begin enjoying the benefits of their dogs and cats being able to let themselves out at all times of the day and night.
| Flap Size | Flap Dimension | Height To Raise Window |
| Small | 6″ w x 11″ h | 18 1/2″ |
| Medium | 8″ w x 15″ h | 22 1/2″ |
| Large | 10″ w x 19″ h | 26 1/2″ |
| Extra Large | 12″ w x 23″ h | 30 1/2″ |
| 22″ – 25″ | 25″ – 28″ | 28″ – 31″ | 31″ – 34″ | 34″ – 37″ | 37″ – 40″ | 40″ – 43″ |
All Extra Large and 22″-25″ adjustment range sales are final, no return. Please simulate the opening (open the window, use duct tape to simulate the opening) to be sure this size is appropriate before ordering.
Our normal 90-day return policy and 15-year warranty applies to Small, Medium and Large sizes as well as all other adjustment ranges
There has been lots of discussion as to why the Endura Flap is such a high performing pet door, but for engineers or those looking for some more technical information here is a 74-page dog door energy efficiency study showing what makes it so special.
To the original purchaser, Endura Flap Pet Doors warrants this product and all of its component parts to be free of defects in materials or workmanship for a period of 15 years from the date of delivery to the customer.
Endura Flap assemblies employed in commercial kennels are warranted for a period of 3 years.
Damage caused by accident, improper installation, abuse or normal wear, including damage by pets or glass breakage is specifically excluded from this warranty. Defective materials returned to Endura Flap Pet Doors together with proof of purchase, will be repaired or replaced and returned to the customer free of charge.
We’d love for you to buy your cat door window insert from us! And we work hard for your business, by offering you:
Pet Door Products is also proud to sponsor Make-A-Wish, which grants the wishes of youngsters diagnosed with life-threatening medical conditions.
A cat will need to use a small or medium door. Measure your cat’s width and height. As shown on our measuring guide, the top of the door flap should be at least as high as the top of your cat’s shoulder. One of these two sizes will fit:
Don’t hesitate to call us if you have any questions. Selecting the right size door will support your pet’s long-term comfort and well-being.
We offer three desirable color options:
The inserts have a discreet frame design, allowing the maximum area for viewing. A security panel slides smartly over the opening whenever you prefer not to allow pets to go in or out.
Energy-efficient window inserts from Pet Door Products fit right into your sliding glass door. No tools are needed to secure the removable insert with its advanced, spring-loaded design. By installing your window insert yourself, you’ll spend less with our DIY discount, and install it on your time—no coordination with Pet Door Pro required.
For the permanent option, we can replace your window with a new one. We’ll set up an appointment with you for the window replacement. Your new window will have a cat door built right into the glass.
Need help with your decision? Learn more!
Yes. We ship from Pet Door Products in Utah, straight to your home. Once you place your order, depending on the distance, your new cat door insert may arrive in just three days—and always within a week. Get a jump on the cold weather! Within days, you and your pet will have the freedom and comfort you’ve been wishing for.
Call or text us at (801) 973-8000 to arrange your immediate shipment.
Pet Door Products
3052 S 460 W #100
Salt Lake City, UT 84115
Local: (801) 973-8000
Toll-Free: 1-833-752-2200
Privacy & Terms | Copyright 2022 © Pet Door Products | Designed by SEO Pros
Jason –
This is an awesome pet door! We are renters and cannot make changes to the home. This allows our cat to come and go, plus we get to take the door with us when we move.
Richard –
Pet Door was awesome to work with! We purchased the insert from out of state and they coordinated working with a local company to get it installed.
Jelly –
The product and service it’s very excellent. Cat love to go out anytime. Thank you
Rojar –
We love our Pet Door! The door itself is really great quality. Our Cats love the freedom to go in and out when they want and I love not having to go open the door every 5 minutes. I highly recommend working with Pet Door Products.
Jini –
Great service and help full staff. My cat also love it now my can go out easily.
Thank you!
Bud –
Great service installing my door. The door seems to be excellent quality and the pet door is very well insulated. Cat loves the door and is in and out all day.
Helena –
My experience with them was exceptional from beginning to end.The install time for the new glass and dog door was 30 min or less and the installer was very fast and professional as well.The product itself is wonderful! My cats also adjusted to the new door very quickly which was great! We all just love it!
Buddy –
They did such an amazing job with outdoor! I spent and my cat loves the freedom of coming and going when she wants. Thank you Pet Door Product
Katie –
I love this door, so do my dogs! They love having the freedom to go outside and come inside when they want. Thank you Pet Door Products
Gracey –
We are so happy because my cat can easy to go out. Thank you
Dave –
I spent and my cat loves the freedom of coming and going when she wants. Thank you Pet Door Product.
Toni –
Great service and help full staff. My cat also loves it now my can go out easily. They did such an amazing job outdoor! I spent and my cat loves the freedom of coming and going when she wants.
Ronny –
This allows our cat to come and go, plus we get to take the door with us when we move.I spent and my cat loves the freedom of coming and going when she wants.
Julie –
I was so impressed! Their cost was competitive. The 10-year warranty eases my mind on that part as well. Now my Dog can sun bathe on our porch to his little heart’s content.
julianena –
Great service and help full staff. Now my cat can easy to go out. Thank you Pet Door Product
Kamla –
They did such an amazing job with the outdoor! It doesn’t let any cold air in, and the dogs love it!
Thank you Pet Door Product
Carly –
The product arrived and I installed it the same day. Our dogs started using it by the next afternoon. Thank you!