The answer to 'how much does junction box cost in Chicago' is that the cost of a junction box can vary significantly depending on several factors. Junction boxes come in a range of sizes, materials, and features, which can impact the price. Typically, a basic plastic junction box for a home can cost between $5 to $20, while more specialized metal or weatherproof boxes may range from $20 to $50 or more.
The cost can also be influenced by the complexity of the installation, the accessibility of the location, and whether any additional electrical work is required. It's important to get quotes from local electrical contractors or suppliers to get an accurate estimate for your specific project and location.