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10 Best vertical window cat doors of 2026

Save up to 31% off
  • Best Choice

    1

    Ideal Pet Products Aluminum Vertical Sash Window Pet Door, Adjustable Sizes to Fit Window Heights from 43-7/8” to 46-1/2”, Chubby Kat 7-1/2” x 10-1/2” Flap Size
    Clicked 5 times in the last month
    Ideal Pet Products

    Ideal Pet Products Aluminum Vertical Sash Window Pet Door, Adjustable Sizes to Fit Window Heights from 43-7/8” to 46-1/2”, Chubby Kat 7-1/2” x 10-1/2” Flap Size

    9.7
    Exceptional
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  • Value for Money

    2

    Ideal Pet Products Aluminum Vertical Sash Window Pet Door, Adjustable Sizes to Fit Window Heights from 32-1/2" to 35-1/8”, Chubby Kat 7-1/2” x 10-1/2” Flap Size
    Ideal Pet Products

    Ideal Pet Products Aluminum Vertical Sash Window Pet Door, Adjustable Sizes to Fit Window Heights from 32-1/2" to 35-1/8”, Chubby Kat 7-1/2” x 10-1/2” Flap Size

    9.4
    Excellent

  • 3

    Vertical Cat Door for Window, Fits 31"-42" Height Window, 2-Min Install | Aluminum Frame + HD Glass | Weatherproof Design | Magnetic Closure Window Cat Door Insert, Adjustable Pet Door Window for Cats
    Yoochee

    Vertical Cat Door for Window, Fits 31"-42" Height Window, 2-Min Install | Aluminum Frame + HD Glass | Weatherproof Design | Magnetic Closure Window Cat Door Insert, Adjustable Pet Door Window for Cats

    9.3
    Excellent

  • 4

    Vertical Cat Door for Window, Fits 41"-62" Height Window, 2-Min Install | Aluminum Frame + HD Glass | Weatherproof Design | Magnetic Closure Window Cat Door Insert, Adjustable Pet Door Window for Cats
    Yoochee

    Vertical Cat Door for Window, Fits 41"-62" Height Window, 2-Min Install | Aluminum Frame + HD Glass | Weatherproof Design | Magnetic Closure Window Cat Door Insert, Adjustable Pet Door Window for Cats

    9.2
    Excellent

  • 5

    Cat Door for Window, Quick Installation Adjustable Width of 27"-32", Cat Window Door with 4 Locking Modes, Magnetic Closure Design, Weatherproof Aluminum Frame Cat Door Window Insert
    Linvivon

    Cat Door for Window, Quick Installation Adjustable Width of 27"-32", Cat Window Door with 4 Locking Modes, Magnetic Closure Design, Weatherproof Aluminum Frame Cat Door Window Insert

    31% Off
    9.1
    Excellent
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  • 6

    Thin Cat Door for Windows, Pet Doors and Sliding Door, Safety Pet Door with 4 Way Lock, Weatherproof Cat Flap for Thin Door and Wall(Medium, Outer Size 7.76 * 7.5 * 0.78in)
    Lessmon

    Thin Cat Door for Windows, Pet Doors and Sliding Door, Safety Pet Door with 4 Way Lock, Weatherproof Cat Flap for Thin Door and Wall(Medium, Outer Size 7.76 * 7.5 * 0.78in)

    • dog breed size:Small
    • material:ABS
    • install type:Simple Installation
    • closure:Magnetic
    • dimensions:0.78 x 7.5 x 7.7 inches
    9.0
    Excellent
    Our Rating

  • 7

    【Solid Wood】 Cat Door for Window,Fit Width 26"-31" Window,3-Min Install,Solid Wood Frame,Window Cat Door,Hd High-Transparency Acrylic Sheet,4 Lock Mode,Magnetic Close,Weatherproof Design
    HOMEPEDIA

    【Solid Wood】 Cat Door for Window,Fit Width 26"-31" Window,3-Min Install,Solid Wood Frame,Window Cat Door,Hd High-Transparency Acrylic Sheet,4 Lock Mode,Magnetic Close,Weatherproof Design

    14% Off
    8.7
    Very Good

  • 8

    Cat Door for Window, Adjustable Width 32.5-38”, Vertical Window Pet Door Insert for Cat& Small Dog with 4 Locking Modes, Quick-Fit Clear Cat Window Door Magnetic Close, Weatherproof Design- White
    NiceTCU

    Cat Door for Window, Adjustable Width 32.5-38”, Vertical Window Pet Door Insert for Cat& Small Dog with 4 Locking Modes, Quick-Fit Clear Cat Window Door Magnetic Close, Weatherproof Design- White

    8.4
    Good

  • 9

    Cat Door for Window, 3Min No-Damage Quick Install, Fits 27"-32" Width Windows,No Drilling Required Cat Window Door Insert, Aluminum Frame Pet Door for Window, 4 Lock Modes to Control Pet Access
    Petoasis

    Cat Door for Window, 3Min No-Damage Quick Install, Fits 27"-32" Width Windows,No Drilling Required Cat Window Door Insert, Aluminum Frame Pet Door for Window, 4 Lock Modes to Control Pet Access

    23% Off
    8.1
    Good

  • 10

    Sliding Cat Door for Window, Fits 32"-37" Width Window, 2-Min Install | Aluminum Frame + HD Glass | Weatherproof Design | Magnetic Closure Window Cat Door Insert, Adjustable Pet Door Window for Cats
    Yoochee

    Sliding Cat Door for Window, Fits 32"-37" Width Window, 2-Min Install | Aluminum Frame + HD Glass | Weatherproof Design | Magnetic Closure Window Cat Door Insert, Adjustable Pet Door Window for Cats

    8.0
    Good