The answer to 'how much does junction box cost in Chicago' is that the cost of a junction box can vary significantly depending on factors like the size, material, and features. Typical junction box prices in the Chicago area tend to range from $5 to $50 or more for basic models, with more specialized or larger boxes costing higher. The cost is influenced by the type of box (metal, plastic, etc.), the number of knockouts, whether it's weatherproof, and the brand or quality level.
To get an accurate estimate for your specific project, it's best to get quotes from local electrical supply stores or licensed electricians in your area. They can assess your needs and provide a customized cost. Keep in mind that the labor to install the junction box is an additional expense that should be factored in as well.