Double-hung windows are a popular choice for their classic style and easy maintenance. However, issues can arise that prevent them from locking properly. If you find your double hung window not locking, don’t panic—there are straightforward steps you can follow to address a broken window lock. Here’s how to fix window locks on a double-hung window so you can keep your home secure.
Diagnose Why Your Double Hung Window Won’t Lock
Before you begin, figure out the specific issue. A window lock broken could stem from misalignment, a dropped upper sash, or a disengaged balance shoe. Understanding the root cause helps you apply the right fix.
- Check Alignment: Are the sashes lining up evenly? If your window locks broken or feels stuck, it might be an alignment issue.
- Look for Visible Damage: Examine the lock components for any cracks or breaks.
- Assess the Sashes: If the upper sash has slid down from its track, the window won’t lock correctly.
Unable to Lock the Window? Start with Simple Adjustments
Sometimes, a double hung window won’t lock because the sashes aren’t fully seated in their tracks. To address this:
- Unlock Completely: Make sure the existing lock mechanism is open.
- Slide the Upper Sash Upward: Raise the top sash as far as it will go.
- Pull the Lower Sash Down: Gently lower the bottom sash so it rests at the base of the window frame.
- Engage the Lock: Once both sashes are in their proper positions, try locking the window again.
If you succeed, you’ve confirmed the problem was simple misalignment.
What If the Top Sash Has Dropped?
A common scenario is when the top sash slides down from its proper “pocket.” This can cause a broken window lock scenario because the lock latch won’t meet correctly.
- Push the Upper Sash: Guide it upward until it reaches the top of the frame.
- Adjust the Lower Sash: At the same time, press the lower sash down to make sure everything lines up.
- Ask for Help: If the sash is heavy or you’re unsure about the fit, consider asking someone to help hold it in place.
Sashes Are Misaligned in the Channel
If you’ve noticed your double hung window not locking, the sashes could be tilted or out of track. Here’s how to fix window locks when misalignment is the culprit:
- Tilt the Sashes In: As if you were cleaning them, gently pivot each sash inward.
- Re-Seat Them: Return the sashes firmly to the window channel, ensuring both sides fit snugly.
- Test the Lock: Move the sashes up and down, then attempt to engage the lock. Proper alignment should allow it to latch securely.
Dealing with a Disengaged Balance Shoe
A balance shoe is the component that helps hold the sash in place. If the shoe is disengaged, your window won’t close correctly, and the lock won’t line up.
- Look for Misalignment: If you see the shoe is higher or lower than it should be, the sash may be off-track.
- Refer to Our Dropping Windows Guide: For detailed steps on adjusting or re-engaging a balance shoe, check out our “How to Fix Dropping Windows” resource. A broken window lock often goes hand in hand with a balance shoe issue.
When to Seek Professional Help
If your window lock broken situation persists even after these adjustments, it may be time to call an expert. A professional can:
- Assess Hardware Damage: In some cases, the lock itself or the surrounding frame could be damaged.
- Upgrade or Replace Locks: If the lock mechanism is severely worn, a replacement might be the best option.
- Ensure Proper Sealing: Lock alignment can impact window insulation, so a professional can confirm everything is sealed tight.
A Note on Safety and Maintenance
Regular window care can save you the trouble of dealing with window locks broken at inconvenient times. Keep your tracks clean, check for signs of wear, and address any squeaks or resistance promptly. If you notice repeated problems, schedule an inspection—ongoing issues might indicate more extensive damage.
Need More Help?
If your double hung window won’t lock despite following the steps above, or you’re concerned about hardware issues, don’t hesitate to contact us at Window World of Joliet. Our team is here to help you keep your home secure and functional, whether it’s adjusting a sash or recommending a full lock replacement. Request your free estimate today!