How much does it cost to change door knobs?
When you change door knobs, you are paying for parts and labor. Parts may include a new door along with your new door knob hardware. You can reduce the cost of changing door knobs by doing the work yourself or by rekeying the locks instead of buying new door knobs.

What tools do you need to change a door knob?
In most cases, the only tool you will need to change door knobs will be a Phillips head screwdriver. A power drill with a Phillips head will make the overall door knob replacement process faster. If you are prepping a new door for locks, you will need the appropriate jig for your lock hardware and a cutting tool that can make the correct size holes.

How do you replace a broken door knob?
As long as the knob can be disassembled and removed, it can be replaced the same as any other lock. You have to make sure that your replacement door knob will fit the precut holes in your door, or you can replace the door as well. Rekeying the door knob will not be an option as this will not fix a broken door knob.

What do I do when my new door knob doesn't fit the holes on my door?
Check to see if the latch hardware can extend or retract its length. If latch length is not your issue, chances are either the door knob or the door will have to change. In certain cases, you may be able to widen holes or add metal covers to interior doors to cover unsightly holes. Consult with a locksmith for the exact options you will have for your particular door.
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