Window Cat Door Insert

Sized to Perfectly Fit Your Window, Easy Installation, & Secure Design! 

Give your cat the freedom to come and go safely with our Custom Cat Door Window Insert. Designed custom to ensure a perfect fit for your window, each custom cat flap offers easy installation and removability. Habitat Haven's durable, high-quality cat door fits seamlessly into horizontal windows (or vertical windows - contact us for custom options), providing a secure and weatherproof entryway for your furry friend. Habitat Haven Window Cat Doors make outdoor catio access easy! Benefits include:

• Perfect Fit: Your window insert is made to order and custom-fitted to precisely sit in your window tracks.
  
  
• No Bugs: Provide outdoor access without leaving your windows open to the elements or bugs.
  
  
• Better Insulation: Rather than leave windows open, keep your temperature stable and get better insulation for your home year-round.
  
  
• Durable Construction: Made from solid 3/8" thick polycarbonate for strength and stability with two standard height options: 13" and 18".
  
  
• 4-Way Locking Pet Door: For cats of all sizes.
  
  
• Weatherproof Design: Brush weather-stripping around the swinging door and foam weather-stripping on all four sides to keep out weather and bugs.
  
  
• Fast Shipping: Custom inserts are made to order and ship directly from our Michigan facility.

All inserts will be constructed with 3/8” polycarbonate which is more rigid and doesn’t flex as much during installation compared to thinner 1/4" polycarbonate. 

FREE Custom Design Services: If you need a different size or style cat door that is not listed please contact us for a custom quote! Our design team will work with you FREE to create a custom window insert that works perfectly for your exact window or use-case!

PLEASE NOTE:  if you have any doubts about measuring your window insert, and to ensure a perfect fit, please reach out and confirm your measurements with our sales and service team to ensure your order is perfectly suited for your window! Heights can be customized, but may incur additional charges. help@habitathaven.com | 866-484-0644

• Cat Door Sizes: We use a standard-sized pet door designed for cats up to 14" shoulder height (maximum approximately 16-20 lbs). Customizations can be made to the insert and pet door size, and charges may apply.
  
  
  • Included Cat Door has an overall size of 9-1/4"W x 10”H with a 7"W x 7"H Cat Flap. 
    
    
• Tunnel Connection Option: If you are adding a tunnel connection, the window insert will be 18" height and have a Large Cat Door pre-installed with the Tunnel Connection around it. 
  
  
  • The included tunnel length is 4", but we can provide an attached tunnel up to 12". Contact us for pricing on customized options!
    

• Polycarbonate: For window inserts up to 60" width inserts we use 3/8” thick clear polycarbonate. For widths over 60" we custom order polycarbonate or PVC which increases lead times and price. Other plastics are available to custom quote as needed, please Contact Us to discuss the best material for your use-case!

• To get an accurate measurement for your window cat door insert, simply measure the width of opening when your window is in the up position, and then add 1/2" to that measurement. See images below for reference, or watch THIS TUTORIAL VIDEO.
  

1. Fully open the window you'd like to use.
2. Using a measuring tape, measure the interior width of the opening only (this is the distance between the window tracks - do not include the depth of either track in your measurement).
3. Add 1/2" to that measurement. Input this number into the "Insert Width" field when ordering.
4. You can also measure the total height of the opening to confirm the height of the insert you select will fit (the height of the insert should be less than the height of the opening).

• For example: If your window opening is 30" wide, you will add 1/2" to this for a Window Width of 30-1/2". Input this number into the "Insert Width" field when ordering. Foam weather stripping is included and can be added to the outside edge of the insert, which creates a weather-proof seal between the cat door insert and the window opening and provides a tighter fit in the tracks. 
  
   
  

PLEASE NOTE:  If you have any doubts about measuring your window insert, and to ensure a perfect fit, please reach out and confirm your measurements with our sales and service team to ensure your order is perfectly suited for your window! Heights can be customized, but may incur additional charges. help@habitathaven.com | 866-484-0644

For customers looking to attach a tunnel to their window cat door insert, tunnel attachments allow for a seamless transition from your home to your Habitat Haven enclosure! Tunnel attachments are installed into an 18" height polycarbonate sheet, with a custom width and pre-mounted 4" length tunnel attachment.

Longer tunnel attachments are available up to 12 inches.  Each additional two inches of tunnel over the standard 4-inch length is $20 (for example, an 8-inch tunnel attachment will add $40 to the total window insert cost). Please call or email to purchase!

PLEASE NOTE:  Tunnel Connectors are only available installed into an 18" Height polycarbonate Cat Door Window Insert. Please ensure your window can open at least 18" before purchasing.

• Cut and install insulating foam strips: Provided with every order is a foam weather stripping with one glued edge to prevent warm/cold drafts around the edges of your window insert. Cut the included foam strips to lengths needed for the top, bottom, and both sides. Remove the cover of the glued edge, and then press the foam strips onto the edge of the window insert. Give the glue a minute or two to dry and adhere the foam weather stripping before moving onto the next step.
  
  
• Place your insert into your window.  The cat door window insert should be inserted into the track on one side, then aligned directly under the window. Lastly center the window insert so each end sits evenly in both sides of the window’s track/guide.

PLEASE NOTE: if you have any doubts when measuring your window insert, and to ensure a perfect fit, please reach out and confirm your measurements with our sales and service team! Confirm your order is perfectly suited for your window as Cat Window Inserts are 100% custom and non-refundable!

If ordered individually, your insert will ship via small parcel which can take 1-5 days depending on your location (see our shipping page) in addition to fabrication time. If your window cat door insert is ordered with a catio enclosure, they will ship together (likely via freight delivery service).

Please note: Window inserts are fabricated in our facility and made to order. Lead times vary depending on order volume. Use the estimated delivery window at the top of the page to determine approximately when your insert will arrive.

Max Window Width for Stocked Polycarbonate: We stock widths up to 60" for polycarbonate, if your window is longer than 60" we can custom order your size from our distributor (either PVC or polycarbonate). Please Note: Custom sizes over 60" will have longer lead times than stocked sizes and will be subject to additional charges.