Cat Door Window Insert

Custom Sized to Your Window for a Perfect Fit, 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 door offers easy installation and removability. Habitat Haven's durable, high-quality pet door fits seamlessly into horizontal or vertical windows, 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 custom-fitted to your window. Each insert is precisely cut to fit your window tracks for a seamless installation.
  
  
• 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 1/4" polycarbonate for strength and stability with three standard heights ranging from 10" up to 18" (please Contact Us using the form below for customizations!)
  
  
• 4-Way Locking Pet Door - Choose between our Small and Large cat doors!
  
  
• 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 orders ship within 2-3 days from our Michigan facility unless shipping with a larger Habitat Haven enclosure! 

For window bases up to 48" we recommend polycarbonate for durability. For longer sizes, PVC ensures structural integrity (PVC must be custom ordered). If you need a cat door of a different size that is not listed, just let us know—we’ll do our best to accommodate your request!

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 tunnel attachment.

Tunnel Connections add a pre-installed 4" section of our Habitat Haven tunnel to your cat door window inserts, allowing for a seamless transition to your Habitat Haven enclosure!

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.

• Cat Door Sizes: We use two standard-sized pet doors for cats up to 15 lbs. Customizations can be made to the insert and pet door size, and charges may apply.
  
  
  • Small Cat Doors: have an overall size of 8”W x 8”H with a 5"W x 5"H Cat Flap. The Small Cat Door is installed on a 10"H polycarbonate window insert
    
    
  • Large Cat Doors: have an overall size of 9-1/4”W x 10”H with a 7-1/4"W x 8"H Cat Flap. The Large Cat Door is installed on a 13"H polycarbonate window insert
    
    
  • Tunnel Connection: 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. 
    
    
• Window Height: Small Cat Doors come installed into a 10" height and Large Cat Doors come installed into a 13" height polycarbonate sheet; all inserts have custom widths to fit your window!

• Habitat Haven cat door window inserts are 1/4" polycarbonate for strength and stability with three standard heights ranging from 10" up to 18" (please Contact Us using the form at the bottom of the page for customizations to height or orientation!)

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, fabrication takes from 1-3 days and will ship via small parcel (UPS or FedEx), which can take 2-3 additional days depending on your location. If your window cat door insert is ordered with a catio enclosure, they will ship together via freight.

Max Window Width: 48" for polycarbonate