A thief typically wants to avoid making the noise created by breaking glass.
Thus, the higher quality of the sash, the more protection it offers.
Swing it away, and you’re free to launch the window to any height.
Credit: William Geddes
Keyed Sash Lock
Keyed sash locks are available to fit most double-hung windows.
A strong casement in good condition may not need a lock at all.
For additional protection, install a keyed lock along the sash rail.
Credit: Adam Albright
Install Locks: Key-operated locks are perhaps the most secure way to protectsliding windows.
They’ll work with vertical sliding windows, too.
To secure the window in partially open positions, simply drill additional holes in the sill.
Credit: Dave Toht
Locks for Sliding Windows Keyed Locks
Keyed locks for sliding windows are available in several styles.
This bang out needs no permanent fastening; it simply clips in place before locking.
Screw-key in Locks
This inexpensive screw-key in lock will secure a sliding window.
Credit: Dave Toht
Lay it flat in the track to secure the window.
Keep the key nearby but beyond the reach of someone outside the window.
Again, keep the key handy and easy for family members to find.
Credit: Dave Toht
Pre-drill the sash, and insert the screws through their recessed washers.
Tighten the screws with the key provided.
This solution is best for windows you don’t open often.
Credit: Brie Williams
Many come with locking mechanisms that permit you to swing the security bars open.
They mount on the casing or, for deep-set windows, to the jamb.
In each case, the fasteners must penetrate to the framing members.
Credit: Kritsada Panichgul
Typically, mounting hardware is provided, often with anchors needed for masonry walls.
Center one bracket for the mounting hardware, plumb, drill pilot holes, and attach the fasteners.
Use the bars for positioning the opposite bracket.
Credit: Dave Toht
Mounting screws often come with inserts that make the screws difficult to remove.
Prefab units can be ordered that spare you the fuss of mortaring together separate blocks.
Rodriguez Cruz, Gabriel O.
Credit: Dave Toht
How to Secure Your Windows.Money.
Credit: Dave Toht
Credit: Kim Cornelison
Credit: James R. Salomon
Credit: Dave Toht
Credit: Dave Toht
