It’s really simple to connect. Ring come with the tools you need. Most important you MUST turn off the Electricity that is connected to the doorbell. One you remove the bell, which is usually 2 screws and attaching the 2 wires. Then you use other wires that come with thre RING you connect up inside the doorbell chime. Literally, 30 minutes. But if you really want help with installation RING does offer outside Contractors who they recommend and the cost is $50.00. Really you can save the $50. and do it yourself.