Window Lock Repair: Security and Function

A window that doesn't lock properly is a major security concern and can also prevent the window from sealing correctly, leading to drafts. Most window lock problems are due to misalignment, loose hardware, or a broken mechanism. These are often simple fixes that you can handle yourself to restore your window's security and function.
🤔 Common Problems and Solutions
Start by diagnosing the issue.
🔧 How to Fix a Misaligned Lock
This usually involves adjusting the keeper (the receiving part of the lock).
🔩 How to Replace a Broken Lock
If the lock mechanism itself is broken, it needs to be replaced.
Lock Replacement Steps:
- Unscrew and remove the old, broken lock mechanism.
- Take the old lock to a hardware store to find an exact replacement. Window hardware can be very specific, so bringing the old part is crucial.
- Screw the new lock into place using the existing holes.
For vinyl or aluminum windows, be careful not to over-tighten screws, as this can strip the material. If a screw hole is stripped, you can often use a slightly larger-diameter screw to get a new grip.
Don't compromise your home's security with a broken window lock. If you can't find a replacement part or the window itself needs repair, contact The Box Advantage Group. Our handyman professionals can repair or replace all types of window hardware.


