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How to install your Nest Hello video doorbell

The Nest app will walk you through Nest Hello installation step-by step with detailed instructions, so you should use the app as your primary guide, but we’ve provided the basic steps and some extra details here.

You can also watch a video to get a preview of the steps.

Important: If you purchased the optional Indoor Power Adapter, visit our article about installing the Nest Hello with the Indoor Power Adapter. Do not follow the instructions in this article which show you how to install Hello without the adapter.

1. Check compatibility and voltage requirements

While most wired doorbells can be replaced by Nest Hello, there are some cases where there isn’t enough power or too much power.  So it’s essential to check that your current doorbell can be replaced by Nest Hello. Please go to the following article for detailed instructions:

How to tell if your doorbell system will work with Nest Hello

Note: If the compatibility checker says your doorbell system isn’t compatible with Hello, you have two options:

2. Install Nest Hello

1. What You'll need for installation

Everything you need to get started installing Nest Hello is in the box.

Check that you have all the parts. We’ve also included wall anchors and a masonry drill bit (for brick, stone and stucco) if you need them.

Basic tools

  • Phillips screwdriver
  • Power drill with Phillips bit
  • Ladder (to reach your doorbell chime)
  • Bubble level (to check doorbell alignment)

Nest app and internet requirements

  • Compatible phone or tablet (check the requirements here)
  • Your Wi-Fi network password
  • A broadband internet connection, with a minimum of 2 Mbps upload speed for each camera in your home

2. Sign into your Nest Account or create one

  • If you’re new to Nest: Go to the Apple App Store or Google Play to download the Nest app and create a free account.
  • If you already own a Nest product: Sign into your account on the app, if you aren’t already.

Note: If you have more than one home in your Nest Account, make sure that you’ve first selected the Nest home where you want to install your camera. Tap Menu Arrow pointing down in the top left of the home screen to change homes.

3. Scan the QR code

  • If you’re new to Nest: Tap Add New Plus icon on the app
    home screen.
  • If you already own a Nest product: Tap Settings Nest settings icon 
    in the top right corner of the app home screen. Then select 
    Add product.

The app will ask you to scan the QR code on your product
so it knows what you’re installing. The code is on the back
of the camera body. You’ll also find it on the brown envelope that came in the box.

Once the app knows what you’re installing it will guide you through all the steps.

Tip: If you’re having trouble scanning the code, make
sure you have good lighting and that you’re not casting a shadow on the code.

Start with your phone about a foot away and
slowly move it closer to the code. It doesn’t need to
fill the box in the app to scan.

If you still can’t scan the code, tap Continue Without
 and type in the numbers at the top of the QR code.

Nest backplate with QR code highlighted

4. Turn off power

Go to your home’s breaker or fuse box and turn off
the power to your doorbell and chime. This will
protect you and your equipment during installation.

Try ringing your doorbell to confirm you’ve turned
off the right switch.

If you need to, you can also turn off the main power
switch at the breaker box.

Breaker box

5. Remove the chime cover

Now remove the cover on your doorbell’s chime.
You may need a ladder to reach it.

Some covers simply pull off, while others
have screws holding them on.

Chime cover being removed


6. Take a picture of the chime's wires

Take a picture of the chime’s wires with your phone. This will help with troubleshooting later.

7. Tell the app about your chime's wires

Select the number of wires in your chime and then tap
on what the wire labels say. The labels are usually on
or next to the wire connectors, but they can also be on the inside of the chime cover.

Chime setup wire selection page in Nest app

8. Follow the app's chime wiring instructions

Next, the app will walk you through the steps to connect your chime wires.

You’ll get custom instructions depending on what wires you entered into the app. So it’s critical to follow the specific wiring the app tells you.

We’ll run through the most common wiring example for replacing a front doorbell with Nest Hello. If your doorbell wiring is different, don’t worry, the app has detailed instructions for advanced wiring as well. So follow what the Nest app tells you to get the right wiring instructions for your chime.

Disconnect the wire from the front terminal on the chime.

When you're done, the wiring should appear as pictured.

  • Straighten the wire ends if needed, and trim them so there’s no more than ¼ inch of exposed wire.
  • If you have stranded wire, twist the strands together until tight.
  • Pinch the white terminal on the chime connector to open it up.
  • Push the wire into the terminal until it stops, then stop pinching the terminal, allowing it to close.
  • Gently tug the wire to make sure it’s held secure.
  • Then put the connector’s white wire into your chime’s front terminal.
  • Do the same for the trans wire on the chime using the gray connector wires.

Wire disconnected from Front terminal

Common example of final chime wiring

9. Mount the chime connector

Once the wiring is done, find a place to put the chime connector.

Make sure the connector and wires don’t touch the chime or any moving parts, or it may not sound right or work at all.

If space is very tight, it may be easier to attach the connector to the outside of your chime cover.

10. Replace your chime cover

Now put your chime's cover back on.

11. Disconnect your current doorbell

Remove your current doorbell and disconnect the wires. You’ll probably need a screwdriver for this step.

Tip: Bend the doorbell wires or tape them so they don’t slip back into the wall.

12. Do you need to use the wedge?

If your doorbell is located in a corner, you can use the
included wedge to change the viewing angle.

This will point Nest Hello away from the wall and help
prevent the IR night vision light from washing out the video.

You can flip the wedge to angle the camera in the
opposite direction.

The wedge has adhesive strips. Just stick it onto
the wall plate.

Make sure you install the wedge the right way: 
The Nest  logo on the wall plate should be on the bottom (as pictured).

Wedge being attached to wall plate


13. Mark holes for the wall plate

Now you’ll mark screw holes for installation with the
wall plate.

Important: You may not be able to re-use the screw hole
from your old doorbell. The doorbell wires must come
through the bottom of Hello’s wall plate hole (as pictured).
If they don’t, they can prevent Nest Hello from locking onto the wall plate.

Again, make sure the Nest logo is at the bottom.
Use a bubble level to check that the wall plate is straight.

Wall plate with marks in the screw holes

14. Install the wall plate

Drill pilot holes with a 3/32nd drill bit or use the included
masonry bit and wall anchors if you’re drilling into stone,
stucco, or other hard materials.

Install the screws. Make sure the Nest logo is at the bottom.
The wall plate is not reversible.

Use a bubble level to double check that the plate is level.
The horizontal screw hole on the plate’s bottom will let you straighten the wall plate if needed.

Diagram of how to insert screws into wall plate

15. Connect the wires

Before connecting, make sure the wires are clean.

Connect the wires to Nest Hello. It doesn’t
matter which terminal you connect a wire to.
Make sure the wires point down, not up, so
any excess can be tucked back into the wall.

If the wires are too short, use the wire extenders
that are included in the box.

connect the wires on doorbell

16. Mount the doorbell

To attach Nest Hello, simply slide the top of the doorbell
into the wall plate. Then press until the doorbell clicks into

If it doesn’t seat properly or you don’t hear a click, re-check
that you’ve fully tucked any excess wire back into the hole.

If you ever need to remove Nest Hello, push the included
release tool (or a thumbtack) into the hole on the bottom to release it.

Doorbell being mounted

17. Switch the power on

Go to your home’s breaker or fuse box and turn on the power to your doorbell and chime.

18. Check that Hello is on

Nest Hello will take a few seconds to turn on. You’ll hear a chime and the light ring should start pulsing blue.

If it’s not, select “No, it’s not blue” in the app and it will help you troubleshoot.

19. Troubleshoot if needed

If there’s no light on Nest Hello, go back to your chime box and double check that you’ve correctly wired the Nest connector.

If the light is blinking yellow, Nest Hello isn’t getting enough power to stream video. You’ll need to contact a local pro to upgrade the voltage of your doorbell wires.

3. Connect Hello to the Nest app

Make sure you have your Wi-Fi password handy to connect Hello to the app and the internet.

1. Enter Hello's location and your Wi-Fi info

First, you’ll tell the app where you installed Nest Hello.

Then you’ll select your Wi-Fi network and enter the password.

If you already have a Nest product installed in your home, Nest Hello will try to get your Wi-Fi info from it.

If Hello can’t connect to your Wi-Fi network, you can try moving your router a bit closer or adding a Wi-Fi extender.

2. Test the video stream and chime

Once Hello is connected to Wi-Fi and the app, the app will test the video.

Ring the doorbell to check that your chime is working. You should also get a notification from the app that someone’s at your door.

If you have an electric chime that doesn’t have moving parts, you may need to adjust the duration with the app so you can hear it ring.

3. Troubleshoot if needed

  • If you have a mechanical chime with moving parts and it didn’t ring or didn’t sound right, remove the chime cover and check that the wires aren’t touching any moving parts.
  • Then test your chime again.
  • If your chime still doesn’t sound right, try installing the connector on the outside of your chime cover.

4. Select other options

For the last step you’ll choose some more settings:

  • Opt to try out Nest Aware for free
  • Pick a language Hello will speak to visitors
  • Choose to turn on audio recording and familiar face detection

4. (optional) Get visitor announcements on your Google Home device

If you have a Google Assistant-enabled speaker or display, it can announce when someone rings your doorbell. You’ll need to set up this connection separately after installing Hello. For complete instructions, visit the following article:

How to get Nest Hello visitor announcements on a Google Assistant-enabled speaker or display >

5. Get started using Nest Hello

Learn more about Nest Hello basics, how to change settings, and more at Get started using your Nest Hello video doorbell.
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