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10 Best adjustable sliding window locks of 2026

Save up to 25% off
  • Best Choice

    1

    Gadgetzan 4 Pack Window Security Bars Adjustable 11"-18",Portable Short Sliding Window Lock Bar for Child Safety/Anti-Theft,Window safety lock with Rubber Base for Vertical and Horizontal Window-White
    Gadgetzan

    Gadgetzan 4 Pack Window Security Bars Adjustable 11"-18",Portable Short Sliding Window Lock Bar for Child Safety/Anti-Theft,Window safety lock with Rubber Base for Vertical and Horizontal Window-White

    9.9
    Exceptional
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  • Value for Money

    2

    Sliding Window Locks (6 Sets), Security Window Locks with Keys, Adjustable Aluminum Sliding Window Stops, Easy Installation Without Drilling, for Vertical and Horizontal Sliding Windows (Silver)
    STERGDE

    Sliding Window Locks (6 Sets), Security Window Locks with Keys, Adjustable Aluminum Sliding Window Stops, Easy Installation Without Drilling, for Vertical and Horizontal Sliding Windows (Silver)

    20% Off
    9.7
    Exceptional

  • 3

    ZRFCXE Window Locks,4 Pack Sliding Window Locks with Key for Vertical & Horizontal Sliding Windows Doors,Easv to Install,Adjustable Security Window Lock for Patio Bedroom Home and Office (Black)
    ZRFCXE

    ZRFCXE Window Locks,4 Pack Sliding Window Locks with Key for Vertical & Horizontal Sliding Windows Doors,Easv to Install,Adjustable Security Window Lock for Patio Bedroom Home and Office (Black)

    23% Off
    9.4
    Excellent

  • 4

    4 Pack Adjustable Sliding Window Locks Window Wedge Window Stop for Home Office and Car by HRLORKC
    HRLORKC

    4 Pack Adjustable Sliding Window Locks Window Wedge Window Stop for Home Office and Car by HRLORKC

    9.3
    Excellent

  • 5

    HYIEOU Sliding Window Locks (2 Sets), Secure Window Lock with Key, Window Locks for Up and Down Windows & Horizontal Sliding Windows, Adjustable Window Lock, Sturdy and Durable, Does Not Deform.
    HYIEOU

    HYIEOU Sliding Window Locks (2 Sets), Secure Window Lock with Key, Window Locks for Up and Down Windows & Horizontal Sliding Windows, Adjustable Window Lock, Sturdy and Durable, Does Not Deform.

    20% Off
    9.1
    Excellent
  • See Today’s Deals & Prices

  • 6

    Window Locks, 10 Pack for Vertical and Horizontal Windows, Sliding Window Locks, Adjustable Aluminum Stoppers, No-Drill Install, Fits Tracks up to 3/16" Wide
    Shop Square

    Window Locks, 10 Pack for Vertical and Horizontal Windows, Sliding Window Locks, Adjustable Aluminum Stoppers, No-Drill Install, Fits Tracks up to 3/16" Wide

    25% Off Limited Time Deal
    9.0
    Excellent
    Our Rating

  • 7

    Window Locks, 10 Pack for Vertical and Horizontal Windows, Adjustable Aluminum Stoppers, Window Security, No-Drill Install, Requires 28-36mm Clearance
    Shop Square

    Window Locks, 10 Pack for Vertical and Horizontal Windows, Adjustable Aluminum Stoppers, Window Security, No-Drill Install, Requires 28-36mm Clearance

    17% Off Limited Time Deal
    8.9
    Very Good
    Our Rating

  • 8

    Window Locks, 4 Sets Sliding Security Window Lock with Key for Vertical & Horizontal Sliding Windows & Sliding Doors, Adjustable Window Locks Security Window Stoppers for Patio Bedroom Home and Office
    PENMAMA

    Window Locks, 4 Sets Sliding Security Window Lock with Key for Vertical & Horizontal Sliding Windows & Sliding Doors, Adjustable Window Locks Security Window Stoppers for Patio Bedroom Home and Office

    8.8
    Very Good
    Our Rating

  • 9

    HYIEOU Sliding Window Locks (6 Sets), Secure Window Lock with Key, Window Locks for Up and Down Windows & Horizontal Sliding Windows, Adjustable Window Lock, Sturdy and Durable, Does Not Deform.
    HYIEOU

    HYIEOU Sliding Window Locks (6 Sets), Secure Window Lock with Key, Window Locks for Up and Down Windows & Horizontal Sliding Windows, Adjustable Window Lock, Sturdy and Durable, Does Not Deform.

    21% Off
    • Weather Resistance:N/A
    • Locking Mechanism:Key with tightening screw
    • Dimensions:N/A
    • Material:Aluminum alloy
    • Mounting Method:Track mount; no drilling
    8.6
    Very Good

  • 10

    Prime-Line U 9809 Sliding Window Lock for Vinyl Windows – Easy Installation to Keep Windows Securely Closed – Diecast Construction, White (2 Pack)
    Defender Security

    Prime-Line U 9809 Sliding Window Lock for Vinyl Windows – Easy Installation to Keep Windows Securely Closed – Diecast Construction, White (2 Pack)

    8.5
    Good
    Our Rating