That depends on the system. Some systems are very expensive, while others are more affordable. Generally, the more features and functionality you want in your smart home system, the more it will cost to install. Some basic things to consider when installing a smart home system include the following: -The type of devices you want to control (lights, appliances, locks, etc.) -The number of devices you want to control -The type of controller or hub you want to use -The type of communication protocol you want to use (WiFi, Z-Wave, ZigBee, Bluetooth LE) -Your budget

There is no definitive answer to this question since the cost of installing a smart home system will vary depending on the size and complexity of the system, as well as the labour costs involved. However, as a rough guide, you can expect to pay anywhere from $500 to $2,000 for a basic smart home system. More sophisticated systems with more features could cost up to $10,000 or more.