Ideal Fast Sash Window

(12 reviews) Write a Review
As low as $174.95

Product Overview

Ideal Pet Products Fast Sash window pet doors are spring loaded for easy installation and feature single pane windows and a central cat flap

  • Single pane windows  
  • White Aluminum frame
  • Spring loaded adjuster
  • Electronic model for cats
  • 3 adjustment ranges fit 23-38 inch wide windows
  • Cat Flap and Chubby cat size has 4 way locking flap
  • Dog sizes use slide in locking cover
  • Limited Lifetime manufacturer warranty
  • Frame thickness is about 5/8" across, the end adjuster pieces that plug into the window track on the ends are about 1" thick

Ideal's Fast Sash window doggy door has a spring loaded adjuster on both ends. This gives it a 5" adjustment range. Available in all sizes to fit anything from cats to labradors, this window mount pet door will get the job done inexpensively. This door is fine for temperate climates, if you live in an area where it gets really hot or really cold, or if your house is very energy efficient and you want an efficient pet door, we suggest you look at the Thermo Sash or Optiview doors.

The E-Cat electronic version works with an included magnetic collar key. This door operates better when the collar key comes close to the bottom of the flap. The higher the collar key in relation to the flap, the less reliably the door works. If you have to build a step or install a shelf for the pet to use the door, install it low and let the pet have a fairly high step over to get through the door. This will ensure that the key is as close as possible to the bottom of the opening as they go through.

This particular sash pet door is unique in that the pet door is mounted in the middle with a small window on either side. After you click on your flap size preference below you'll be able to choose the appropriate width for your window.

This product is subject to a 15% restock fee if returned for any other reason than damage in shipping. 



(12 reviews) Write a Review

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  • 5
    Window Sash Doggie Door

    Posted by Herbie on Dec 26th 2023

    Perfect size for large dogs. Very well built & insulated.

  • 3
    Window pet door

    Posted by Telesa Toone on Jun 20th 2023

    It’s a great window installation was easy and it fit well but my 8 month old kittens have already figured how to push the window open when it’s locked. If the lock bigger, or longer across the bottom that would help.

  • 5
    Great access for the cat

    Posted by Craig on Aug 11th 2021

    Great product that was easy to install. Cat loves having easy access to his catio during the day.

  • 5
    Mr. Chubbs & I are Extremely Happy!

    Posted by Kathy Haynes on May 29th 2021

    I have a chubby cat now and this window is perfect! It has plenty of room for him to come and go as he wishes and saves me time from having to let him in and out all day.

    This window is a quick install and looks great. I bought from this company around 2007 when I adopted a cat and that window still looked great when I moved 3 years ago. I only had to replace the strip around the flap one time in 10 years.

    Thank you for offering this great product! I highly recommend!

  • 5
    Exactly what we wanted

    Posted by Dallas on Sep 16th 2019

    I am so glad I found this, it saved me from replacing a door! This fits perfectly and works exactly as described.

  • 5

    Posted by Sherrie on Sep 27th 2017

    Great product! Thank YOU!

  • 5

    Posted by G. Robinson on Sep 26th 2017

    This item was just what we needed. It is good quality; a no brainer to install and my cats were all quick studies; knew exactly what to do and how to use it. I highly recommend it!

  • 5

    Posted by Kelli on Sep 23rd 2017

    I ordered this product because I had recently moved to a location where traditional doggie doors were not an option. I bought horse mounting stairs to put outside the window and doggie steps for inside. When the doggie door arrived I was nervous that it would not fit properly or be easy to install without a couple of trips to the hardware store, but I was wrong. It fit perfect! I got the springs adjusted to where I needed it and fit right into the tracks of my vinyl window. I would recommend this product. I only wish that it came with more weather stripping or options to complete insulating your windows and also a brace to keep the window secure, without running to the store, but I understand that there are too many different sizes to try to accommodate. Great product!! My dogs were using it within minutes.

  • 5
    Absolutely as advertised

    Posted by PAULA on Sep 13th 2017

    I bought this pet door for a window leading to a catio for my cat. It arrived in a timely manner, is of heavy high quality construction and works great. I had no trouble at all with the installation. The cat loves it too! I did have to buy an extra foam insulation strip to cover both the top and bottom of the flap. They only send enough for the bottom of the panel, but I chose to also insulate where the window sash meets the top of the door.