Installing a Sliding Glass Door Lock


Many homeowners today prefer to use the option of sliding glass doors leading from a kitchen, living room or den to the back yard or patio of their home. Not only is it a convenient and flexible exit way from your home but by adding attractive door treatments to the glass doors it can enhance the interior of your room décor.

Almost all sliding glass doors come with their own lock system for security and safety. In the event you need to change the original locks, you will need to purchase a new sliding glass door lock and reinstall. Installing a sliding glass door lock does not require rocket science intelligence and can often be accomplished by anyone who has had some basic experience using handyman tools, i.e. hammer, drill, pliers, screwdrivers, etc. Most people have found that the job can be accomplished in about an hour and by doing it yourself you can save money that can be put to better use in another area of your home.

Some of the tools and other equipment you will need to install a sliding glass door lock are: power drill with 1/8 inch and ½ inch drill bits, tape measure, hammer, screwdriver, steel punch, black marker, broom and/or vacuum cleaner (for cleanup) and of course, your new glass sliding door lock kit. There are different models of sliding glass door locks for different kinds of doors, so be sure you purchase the proper lock for the particular make and model of glass door in your home.

You will begin your job by sweeping and vacuuming all the dust and dirt from the track of your sliding glass door, inside and out. In the event that your track is exceptionally dirty with ground in dirt or grime, it is better to remove the doors completely to wash with soap, water and scrub brush. Then once the tracks are dried, you can put the doors back in place to proceed.

sliding glass door lockThe first step is to mark the mounting hole for your lock. Take your new sliding glass door lock replacement piece and align it at the bottom of the door where the glass ends at the base, located about an inch below the upper part of the base of the frame. Mark the spot with your marker. Now carefully place the lock against the inner door, aligning the bolt in the lock to the mark that you have made. The lock needs to be straight. With your marker, draw a small circle in the top screw hole of your lock. Here you will drill your first hole to mount the lock.

Before you begin to drill, make a slight indentation in the middle of the hole you just marked by placing the steel punch in the center and lightly tapping it with your hammer. This will make it easier to drill. Now slowly begin to drill the hole, applying steady pressure, while at the same time ensuring you do not drill too deep as you may break the glass that is behind the frame of the door. Once the first hole is completed, you are ready to mark and drill the second hole.

To mark the second hole, you need to affix the lock to the inside door frame by screwing one screw into the first hole you drilled. Once the lock is attached firmly, you can mark the second screw hole with your marker and follow the same procedure above to punch and drill the second hole. Once the second hole has been drilled, screw the second screw in to secure your lock piece. Your next step is to press the lock bolt into place and draw a pattern around the bolt with your marker; this area will eventually be drilled out. Now unscrew the lock and remove it so you can begin work on the lock bolt.

In the mark you have made for your lock bolt, gently make an indentation using your punch and hammer. Then beginning with your 1/8th inch drill bit, drill a hole. After an initial hole has been drilled, switch to the one half inch drill bit to make the hole wider. Reattach the lock and push on the bolt to make sure it slides into the bolt hole properly. Finally, always lock and unlock newly installed glass sliding door locks several times with the key to ensure they are working correctly and easily and you are done.

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