Wiring needed for a smart video doorbell?

Most smart video doorbells can use your existing doorbell wiring, but some newer models may need additional power or dedicated circuits depending on their features and your current setup.

Smart video doorbells typically fall into two categories for power requirements. Battery-powered models like the Ring Video Doorbell (basic model) or Arlo Essential can work without any existing doorbell wiring at all - they charge via USB and connect to your WiFi. However, hardwired models like the Ring Pro, Nest Hello, or Eufy Video Doorbell offer continuous power and more reliable operation.

For hardwired installation, your existing doorbell wiring will usually work if it's in good condition. Traditional doorbell systems use low-voltage wiring (typically 16-24V AC) that runs from your doorbell transformer (usually located near your electrical panel or in the basement) to the doorbell button and chime. The Canadian Electrical Code allows homeowners to work on low-voltage doorbell circuits, but the transformer connection at your panel requires a licensed electrician.

Power requirements vary significantly between models. Basic hardwired video doorbells need 10-16V AC, while feature-rich models with advanced night vision, continuous recording, or mechanical chimes may require 16-24V AC with higher amperage. If your existing transformer is only 10V or 16V and you're installing a power-hungry doorbell, you'll need a transformer upgrade to 24V.

Installation considerations for New Brunswick homes include protecting connections from Maritime humidity and ensuring outdoor-rated wire nuts for any exterior connections. Older homes with original doorbell wiring may have degraded insulation that should be replaced, especially if the wire runs through unheated spaces where freeze-thaw cycles can crack old insulation.

Some high-end smart doorbells require dedicated 120V circuits if they include features like built-in floodlights or multiple cameras. These installations definitely require TSANB permits and licensed electrician installation, as they involve 120V household current rather than low-voltage doorbell wiring.

What you can do yourself in New Brunswick includes connecting the low-voltage wires to the doorbell (with power off at the transformer), but transformer replacement or new circuit installation requires a licensed electrician. If your current doorbell doesn't work or you're unsure about your transformer capacity, have an electrician assess your system before purchasing a smart doorbell.

Need help finding an electrician to upgrade your doorbell wiring? New Brunswick Electrical can match you with local professionals for a free estimate on your smart home project.