One: How to replace a broken sliding glass door lock.
1. First, we need to remove the old door lock, then unscrew the screws on both sides of the lock core anti-theft cover, and finally remove the lock cap. However, when installing, do not tighten the screws too much, and ensure there is a sense of movement when pressing on the anti-theft shell. After that, remove the lock core anti-theft cover. If you have removed the lock core, but cannot pull it out with your hand even after unscrewing the screws, gently tap around the lock head with a hammer.
2. Next, we need to install the new lock. Here are the specific steps: First, insert the shackle, then close both the interior and exterior handles together, and make sure the screw holes on both handles are aligned before rotating the screw. When inserting the screw, ensure it is inserted vertically. If the screw does not align with the internal nut, gently wiggle the screw with your finger. once the screw is rotated and the lock is installed, insert the key and rotate it 360 degrees. If the lock turns smoothly, the installation is complete!
Two. What tools are required to replace a glass door lock?

Typically, replacing a glass door lock requires a Phillips head screwdriver to loosen the screws. If there are screws on the glass door lock panel, you will also need a six-point (internal) socket screwdriver to remove them.
Three. How much does it cost to replace a glass door lock?
The price of frameless glass door locks is not particularly high. However, if you hire a professional installer, the cost will be higher. Typically, the price of standard residential anti-theft locks ranges from around 100 yuan, while slightly better ones can range from 200-300 yuan. Other specialized anti-theft locks are a different matter. If you purchase the lock core yourself and hire a professional to install it, the cost might be in the tens or hundreds of yuan. However, if the professional brings the lock core for installation, the cost could be several hundred yuan. Therefore, it is generally more cost-effective to purchase the lock core yourself.