You don't need to call a repairman to replace the doorknob. If you have the right tools and knowledge, interior door handles can be replaced yourself. To replace the doorknob, you need to remove the old handle and replace it with a new one. If you use the right steps and tools, doorknobs can be replaced easily.
Step
Part 1 of 3: Removing the Door Handle
Step 1. Remove the screw that is visible on the door handle plate
Traditional doorknobs have two screws on the handle plate. Use a Phillips head screwdriver and turn the screw counterclockwise until it opens. If the screw is removed, the handle should no longer be firmly attached.
Step 2. Insert a sharp object into the keyhole if no screws are visible
You should be able to feel a small indentation or hole in the rod attached to the handle. If the hole is circular, insert a paper clip or nail into the hole. If the hole is flat and thin, you can use a flat screwdriver (minus). Press in the hole to release the doorknob.
Step 3. Pull the interior handle from the door leaf
Hold the door leaf with one hand while pulling the doorknob. Keep pulling until the handle releases from the door. You may need to shake the door a little if the handle is slightly stuck.
Step 4. Disassemble and remove the door handle plate screws (if any)
Insert a flat screwdriver into the groove on the side of the handle plate and remove it from the door. You will see another set of screws. Turn the screw counterclockwise using a Phillips head screwdriver until it comes off. Once all these screws are unscrewed, the exterior handle will come off the door.
If there are no indentations in the platen, use a thinner tool such as a knife to carefully pry the plate apart until it comes off the door
Step 5. Remove the handle on the door exterior
Sometimes, exterior door handles can be pulled out right away, but sometimes you'll need to pry the plate open with a flat screwdriver to get it off the door. If it is loose, pull on the handle to release it from the door.
Step 6. Unscrew the door lock
There should be two screws near the bottom and top of the door lock. Use a Phillips head screwdriver to remove the screws.
Step 7. Take the key piece out of the door hole
Use a flat screwdriver to pry the lock plate off the side of the door, then pull out the entire doorknob lock. If done correctly, the door handle and all its components have been removed from the door leaf.
Part 2 of 3: Installing a New Lock
Step 1. Push the lock piece into the hole in the door
A doorknob lock is a latch-like part that snaps into the door frame so that the door cannot be opened. One side of the door lock has a beveled edge while the other side is flat. Insert the lock so that the flat side is facing the inside of the room. This ensures that you can lock the door from the inside.
Step 2. Align the lock plate with the screw holes
Position the screw holes in the door with the lock plate holes so you can insert the screws into them. If there is a lock in the door, push the lock until it fits snugly.
Step 3. Install the lock screw
Secure the door lock plate by tightening the screws above and below the lock. Use the screw holes already in the door to install the new screws.
Part 3 of 3: Installing Door Handles
Step 1. Push the blade on the exterior door handle through the hole in the lock
Exterior doorknobs should have three slats connected to the handle. These three blades should line up with the holes on the inside of the lock. Align the hole in the interior of the lock with the blade connected to the handle, and push the handle into the hole.
The center bar will usually be square while the blades on each side are circular
Step 2. Attach the plate to the reverse side of the door, if possible
The plate is the part of the handle that operates the \flush against the door and connects the handle to the door. Align the plate so that the holes in the plate line up with the holes in the exterior handle. Tighten the screws with a Phillips head screwdriver and attach the outer plate to cover the interior plate, then tighten to hide your screws.
Sometimes, the plate is already attached to the handle itself
Step 3. Connect the interior handle to the door if you don't have a plate
The blade of the exterior handle should be sticking out from behind your door. Take your interior handle and align the hole in the handle with the blade on the exterior handle. Once done, press the interior handle against the exterior handle bar until the handle can operate the \flush properly.
Step 4. Tighten the door handle screws to the door leaf
Turn your screws in the interior door handle holes. Turn it clockwise to allow the screw to slide in and tighten.
Step 5. Slide the new handle back into the door stem if you have a plate
Your exterior handle should have a blade or rod sticking out of the door. Align the holes in the interior handles with the exterior door handles. Press the handle to push the rod into the hole. You may need to turn the handle left or right until it finally slides in completely and snaps in place.
