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Prime-Line Sliding Window Sash Locks

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Boost Security With Locks for Sliding Window Sashes

Safety and peace of mind are valuable. That’s why little details, such as locks for window sashes, can be so important. Not only do they enhance home security, but they also help to prevent children from opening windows.


A double-hung sash window has two sashes that slide up and down. Sometimes one sash is fixed, as with a single-hung window. Sash windows differ from casement windows, which have hinges that allow the window to move outward horizontally or vertically. A sash window locker secures a window by preventing up-and-down motion.


You can use window lockers, or locks, on wood, polyvinyl chloride (PVC) and even aluminum windows. Sash window locks also come in a range of locking designs, styles and colors to match most window frames. The range of locking designs includes slide, spring and screw mechanisms.


Locks for window sashes are easy to install. Often, all you need is a screwdriver to secure the lock in place. Follow the manufacturer’s installation instructions for the best results.


Frequently Asked Questions


Q: How can I make my sash windows more secure?

A: If you’re looking to add security beyond just window locks, you can add opening restrictors. You add these restrictors to the window frame, and they prevent the window from opening past a certain point. You can also use reinforced window glass and dual screws.


Q: What’s a window sash lock?

A: A sash window lock is a lock that prevents one or both parts of a sash window from moving. You secure the lock from inside your home, and no one can access the lock from outside.


Q: Are sash locks safe?

A: Yes, it’s safe to use sash locks. They don’t interfere with window operation or with blinds or curtains. Also, because locking and unlocking these mechanisms requires dexterity, they’re difficult for most children to operate. But be cautious. It’s still possible for a child to open them.