Installing two Nest doorbells can boost your home security and convenience. This guide walks you through planning, wiring, mounting, and syncing both devices with your Google account.
Key Takeaways
- Check compatibility first: Ensure your existing doorbell wiring and transformer support Nest doorbells before starting.
- Plan placement carefully: Install both doorbells at optimal heights and angles for clear video and motion detection.
- Use the Nest app for setup: The app guides you through Wi-Fi connection, device pairing, and settings for each doorbell.
- Label wires during removal: Prevent confusion when disconnecting old doorbells by marking wires with tape.
- Test both units after install: Confirm live video, motion alerts, and chime functionality before finishing.
- Consider a chime connector or power cable: If your transformer is weak, use Nest’s optional accessories for reliable power.
- Secure your network: Use a strong Wi-Fi password and enable two-factor authentication on your Google account for safety.
How to Install 2 Nest Doorbells: A Complete Step-by-Step Guide
So, you’ve decided to upgrade your home security with not one, but two Nest doorbells. Whether you’re covering a front and back entrance, a side gate, or a large driveway, having dual smart doorbells gives you better visibility and peace of mind. But installing two Nest doorbells isn’t just about doubling the work—it’s about smart planning, proper wiring, and seamless setup.
In this guide, we’ll walk you through everything you need to know to install 2 Nest doorbells like a pro. From checking your home’s electrical compatibility to mounting the devices and syncing them with your Google account, we’ve got you covered. By the end, you’ll have two fully functional, Wi-Fi-connected doorbells that keep your home safe and let you answer the door from anywhere.
Why Install Two Nest Doorbells?
Before diving into the installation, let’s talk about why you might want two Nest doorbells. While one doorbell covers your main entrance, adding a second one can be a game-changer for larger homes, multi-level properties, or homes with multiple access points.
Visual guide about How to Install 2 Nest Doorbells
Image source: i.redd.it
- Better coverage: Monitor both the front and back doors, or a front door and a side entrance.
- Reduced blind spots: Catch visitors, deliveries, or potential intruders from more angles.
- Convenience: See who’s at any door from your phone, whether you’re in the kitchen or the backyard.
- Package protection: Keep an eye on deliveries left at different doors.
- Enhanced security: Deter porch pirates and unwanted visitors with visible cameras.
Whether you have a Nest Doorbell (battery), Nest Doorbell (wired), or a mix of both, the installation process shares many similarities. We’ll focus on the wired version since it’s more common for permanent setups, but we’ll note battery-specific tips where needed.
What You’ll Need Before You Start
Before you grab your drill and screwdriver, make sure you have all the tools and materials ready. Rushing into installation without preparation can lead to frustration—or worse, damaged wiring.
Tools and Materials
- Two Nest doorbells (wired or battery)
- Nest app (downloaded on your smartphone or tablet)
- Screwdriver (Phillips and flathead)
- Drill and drill bits (for mounting)
- Wire strippers
- Electrical tape
- Voltage tester (optional but recommended)
- Level (to ensure straight mounting)
- Pencil (for marking drill points)
- Ladder (if installing high up)
- Optional: Nest Chime Connector or Power Cable (if your transformer is under 16V/10VA)
Check Your Existing Doorbell System
Most homes have a doorbell system with a transformer, chime, and low-voltage wires. But not all systems are compatible with Nest doorbells. Here’s how to check:
- Transformer voltage: Nest doorbells (wired) need a transformer that outputs 16–24 volts AC and at least 10VA (volt-amperes). Older homes may have 8V or 12V transformers, which won’t provide enough power.
- Wiring: You’ll need at least two wires (front and transformer) connected to your existing chime. If you only have one wire, you may need to run new wiring or consider the battery-powered model.
- Chime type: Mechanical chimes work best. Digital chimes may require a Nest Chime Connector to prevent buzzing or damage.
Use a multimeter or voltage tester to check your transformer’s output. If it’s below 16V, you’ll need to upgrade it or use the Nest Power Cable, which plugs into an outlet and bypasses the transformer.
Step 1: Turn Off the Power
Safety first! Even though doorbell wires carry low voltage, it’s still important to turn off the power to avoid short circuits or damage to your Nest doorbell.
Locate Your Doorbell Transformer
The transformer is usually found in your basement, garage, or near your electrical panel. It steps down your home’s 120V power to 16–24V for the doorbell.
Turn Off the Circuit Breaker
Find the breaker that controls your doorbell (it may be labeled “doorbell” or “chime”). Flip it off. If you’re unsure which one it is, turn off the main breaker to be safe.
Test the Wires
Use a non-contact voltage tester at the doorbell chime to confirm no power is flowing. This ensures it’s safe to work on the wires.
Step 2: Remove Your Old Doorbell(s)
Now it’s time to take down your existing doorbell(s). If you’re replacing two old doorbells, do this step for both locations.
Unscrew the Old Doorbell
Use a screwdriver to remove the mounting screws. Gently pull the doorbell away from the wall to expose the wires.
Label the Wires
This is crucial! Use small pieces of tape to label the wires. For example:
- “Front” for the wire from the front door
- “Trans” for the wire from the transformer
- “Rear” if you have a second doorbell at the back
Labeling prevents confusion when reconnecting, especially when installing two Nest doorbells.
Disconnect the Wires
Loosen the terminal screws and carefully remove the wires. Keep them separated so they don’t touch each other or the wall.
Step 3: Install the Nest Doorbell Mounting Plates
Each Nest doorbell comes with a mounting plate. You’ll attach this to the wall first, then snap the doorbell onto it.
Position the Mounting Plate
Hold the plate against the wall at the desired height. Nest recommends installing doorbells 5 feet (1.5 meters) above the ground for optimal motion detection and video quality.
Use a level to make sure the plate is straight. Mark the screw holes with a pencil.
Drill Pilot Holes
Drill small pilot holes into the wall at the marked spots. This prevents the screws from splitting the wood or cracking brick.
Secure the Mounting Plate
Line up the plate with the holes and screw it into place. Make sure it’s tight and level.
Repeat this process for the second doorbell location. If the two doors are far apart, consider doing one at a time to avoid mixing up wires.
Step 4: Connect the Wires to the Nest Doorbell
Now it’s time to connect the wires to your new Nest doorbells. This step is the same for both units, but keep track of which wires go where.
Insert the Wires
Take the two labeled wires (e.g., “Front” and “Trans”) and insert them into the back of the Nest doorbell’s mounting plate. The plate has two terminals—just push the wires into the slots. No screw tightening needed.
Make sure the wires are fully inserted and not loose. Poor connections can cause power issues or intermittent operation.
Snap the Doorbell into Place
Align the Nest doorbell with the mounting plate and press firmly until it clicks into place. Give it a gentle tug to ensure it’s secure.
Repeat this for the second doorbell. If you’re installing both at the same time, double-check that you’re connecting the correct wires to the correct doorbell.
Step 5: Turn the Power Back On
Once both doorbells are mounted and wired, it’s time to restore power.
Flip the Circuit Breaker
Turn the breaker back on. You should hear your mechanical chime ring briefly—this is normal.
Check for Power
Look at the Nest doorbell’s status light. A solid green light means it’s receiving power and is ready to connect to Wi-Fi. If the light is off or blinking red, there may be a wiring or power issue.
Step 6: Set Up the Nest Doorbells Using the App
The Nest app is your control center for both doorbells. It guides you through Wi-Fi setup, naming devices, and customizing settings.
Open the Nest App
Download the Nest app from the App Store or Google Play if you haven’t already. Sign in with your Google account.
Tap “Add Product”
Tap the “+” icon and select “Doorbell.” The app will search for nearby Nest devices.
Scan the QR Code
Each Nest doorbell has a QR code on the back or in the box. Use your phone’s camera to scan it. This pairs the device with your account.
Connect to Wi-Fi
Select your home Wi-Fi network and enter the password. Make sure both doorbells are on the same network for easier management.
Name Your Doorbells
Give each doorbell a unique name, like “Front Door” and “Back Door.” This helps you identify them in the app and on notifications.
Adjust Settings
Customize motion zones, alert preferences, and video quality for each doorbell. You can also set up Activity Zones to focus on specific areas, like a driveway or porch.
Step 7: Test Both Doorbells
Before calling the job done, test both Nest doorbells to ensure everything works correctly.
Check Live Video
Open the Nest app and tap on each doorbell to view the live feed. Make sure the image is clear and the angle covers the desired area.
Test Motion Alerts
Walk in front of each doorbell to trigger motion detection. You should receive a notification on your phone within a few seconds.
Ring the Doorbell
Press the button on each doorbell. Your phone should receive a notification, and your indoor chime (if connected) should ring.
Check Night Vision and Audio
Test the doorbells at night to ensure night vision works. Also, speak through the app to test two-way audio.
Troubleshooting Common Issues
Even with careful installation, you might run into problems. Here’s how to fix the most common issues when installing two Nest doorbells.
Doorbell Won’t Power On
- Check that the breaker is on.
- Verify wire connections are secure.
- Test the transformer voltage—replace if below 16V.
- Try the Nest Power Cable if wiring is insufficient.
Weak or No Wi-Fi Signal
- Move your router closer or use a Wi-Fi extender.
- Ensure the doorbell is within 30–50 feet of the router.
- Avoid installing near metal surfaces or thick walls.
Chime Doesn’t Ring
- Confirm the chime is mechanical (not digital).
- Install a Nest Chime Connector if using a digital chime.
- Check that the wires are connected to the correct terminals.
One Doorbell Works, the Other Doesn’t
- Double-check wire labels—mixing up “Front” and “Rear” wires can cause issues.
- Ensure both doorbells are on the same Wi-Fi network.
- Restart the non-working doorbell by removing and reinserting it.
False Motion Alerts
- Adjust motion sensitivity in the app.
- Create Activity Zones to ignore areas like busy streets.
- Trim bushes or trees that trigger motion.
Tips for a Successful Dual Doorbell Setup
Installing two Nest doorbells is more than just hardware—it’s about creating a smart, responsive security system. Here are some pro tips to get the most out of your setup.
Use Different Alert Tones
In the Nest app, you can assign different chime sounds to each doorbell. That way, you’ll know instantly whether someone’s at the front or back door.
Enable Package Detection
Nest doorbells can detect packages left at your door. Enable this feature in the app to get alerts when a delivery arrives.
Set Up Emergency Contacts
Add family members or trusted neighbors to your Nest account so they can also receive alerts and view live video.
Keep Firmware Updated
Nest regularly releases updates to improve performance and security. Make sure automatic updates are enabled in the app.
Secure Your Account
Use a strong password and enable two-factor authentication on your Google account to prevent unauthorized access.
Conclusion
Installing two Nest doorbells might seem like a big project, but with the right preparation and step-by-step guidance, it’s totally doable—even for beginners. From checking your wiring to mounting the devices and syncing them with the app, each step brings you closer to a smarter, safer home.
By following this guide, you’ve not only upgraded your entryways but also added a layer of convenience and security that traditional doorbells can’t match. Whether you’re watching for deliveries, greeting guests remotely, or keeping an eye on your property, your two Nest doorbells are now working together to protect what matters most.
So go ahead—ring that virtual doorbell, check the live feed, and enjoy the peace of mind that comes with knowing your home is always in view.