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The Best Way to Replace Your Lock for Increased Security


To make sure that your home is protected against the threat of an experienced burglar, be sure you have a reliable front door lock. These 10 steps will guide you in how to replace your door lock. Make sure you gather your materials, match and measure your new lock up to your old one, keep the door open as you work, and line things up exactly so that you are successful in changing your front door lock. Be sure to test it out during installation so that you know it works properly when you have finished.

How to Change Front Door Lock

  1. Step 1: Gather Materials

    You will need a metal lubricant, a Phillips screwdriver, a power drill, a Phillips bit, a hole bit, and a wood chisel. You should also have safety goggles to wear when using the power drill or chisel.

  2. Step 2: Match Your New Lock to Your Old Lock

    Your new lock doesn’t have to be the same exact lock; however, it will help to match them as closely as possible to be sure that they are the same size. Check the brand, style, and features and try to match these as closely as possible so that you will not have to modify the door itself during the lock change process. Be sure to measure the size of both locks as well.

  3. Step 3: Open the Door and Unlock the Lock

    Keep your door open and the lock unlocked.

  4. Step 4: Remove the Door Handle

    This may not be possible or necessary, but in many cases it is beneficial and provides better access to the locking mechanism. Release the springs that hold the doorknob in place and unscrew the cover that holds the doorknob in place.

  5. Step 5: Remove the Lock

    Remove the lock by unscrewing the screws and lock plate. Be careful not to let the door close.

  6. Step 6: Install the Lock

    Set the new lock into place with the latch facing inward, and try turning the latch to make sure that it works in its new location and position. If it doesn’t fit snugly, remove the latch and lock and use your wood chisel to remove extra wood so that it will fit cleanly.

  7. Step 7: Install the Lockset

    Set the lockset into place with the keyed section facing outward. Make sure everything lines up exactly and insert the mounting screws, tightening them to hold them down. Be sure not to overtighten any screws, which could strip the threads or interfere with the lock’s function. Use the metal lubricant to lubricate any moving metal parts if necessary.

  8. Step 8: Test the Latch and Locking Mechanism with the Key

    Test everything out with the door open so that you can see if all is in working order.

  9. Step 9: Replace the Door Knob

    Replace the door knob and all other parts in their proper places. Make sure that everything is properly lined up, as all the pieces will fit together like puzzle pieces. Readjust as necessary until the pieces fit flush against the door.

  10. Step 10: Test Everything Out One Final Time

    Make sure that everything is in working order before you complete your project.