Turn off the electricity to the doorbell. Voltage levels are low, but it is a necessary safety procedure.
Remove the broken doorbell. Most doorbells are affixed by 2 screws in the faceplate. Unscrew these. Detach the wires connected to the button apparatus. Pay attention to where they were attached; you'll need to reattach those wires to the corresponding parts on the new doorbell.
Connect the wires to the new doorbell. This should consist of securing contact between exposed wire and terminals on the back of the new doorbell. Secure the new doorbell. Many new doorbells will come with screws that you can use. Affix it tightly to the same position as the previous doorbell.
Things You Will Need
- New doorbell
- Needle nose pliers
- Extra screws
- Frayed electrical wires can be fixed with wire strippers. Cut the frayed part away, and make sure the power is still off. Use strippers to expose fresh wire to the doorbell.