How To Install A New Doorbell

Posted on: 3 March 2015


Installing a doorbell is fairly easy to do on your own as long as you have basic electrical skills. You must keep your safety in mind and get the right supplies first. Keep in mind that if you did not purchase a doorbell kit that came with a transformer, you need to make sure you get the right transformer depending on the voltage needed.

The Tools and Supplies You Need

If you are going to install your own doorbell, you should start by gathering up all the tools and supplies you will need. This prevents you from getting stuck halfway through the project because you forgot a voltage tester or the right drill bits. To install a new doorbell, you will need the following:

  • Fish tape
  • Insulated screwdrivers
  • Power drill
  • Drill bits
  • Wire strippers
  • Torpedo level
  • Silicone caulk
  • Doorbell buttons
  • Doorbell chime
  • Wire connectors
  • Caulking gun
  • Needle-nose pliers
  • Transformer
  • Low-voltage bell wire

Turn Off the Power

Just like with all electrical and wiring projects, the power must be turned off first. Find your circuit breaker and turn off the circuit that you are working with. If you aren't sure which circuit to turn off, turn all power off in your home just to be sure. You can use a voltage tester on the circuit to make sure the power is definitely off.

Run the Wires

For a doorbell, you will have two types of bell wires. One contains two wires, and the other contains three wires. The first you want is the two-wire bell wire, which runs from where you want the doorbell button-to-be location, going to the transformer. You need fish tape and a power drill with drill bits in order to run the wire through your walls. Use tape to mark the wires so you know what one is going to the proper location. Once the two-wire bell wire is run, get out the three-wire bell wire. This goes from the chime, or the sound source of the doorbell, to the transformer.

Install the Chime

The chime is the box that contains the sound of the doorbell. This needs to be installed first. Place it on the wall where it will be located, using your torpedo level to make sure it is level across. Use a pencil to mark the mounting holes of the chime. You can use masonry screws or plastic anchors, depending on if you have a masonry wall or drywall. Use these screws to mount and secure the chime to the wall.

Finish Connecting the Wires

If you have two different buttons for your doorbell, they should be labeled according to the button. Such as B for back door button and F for front door button. Remember the three-wire bell wire at the chime needs to run to both buttons if you are using a two-button system. Follow the instructions to run the wire to the right terminals and secure them. Replace the chime cover once these wires are done. You will then finish wiring the doorbells according to the instructions that came with your doorbell and transformer.

After the wires are connected properly, turn the power on to test the doorbell. For assistance, contact a professional like Miller & Humphrey Plumbing & Electric Inc.