The basic cost to Remodel an Electrical Box is $1,305 - $1,581 per box in May 2026, but can vary significantly with site conditions and options. Use our free HOMEWYSE CALCULATOR to estimate fair costs for your SPECIFIC project. In this guide, we'll break down what power distribution boxes are, why custom solutions make sense for specific applications, how much they cost, and how to choose a reliable manufacturer (including a look at CNC Electric's industry-leading offerings). By the end, you'll have all the tools to. Distribution box cost encompasses various factors that influence the overall investment in electrical distribution systems. A distribution box serves as a crucial component in electrical installations, housing circuit breakers, fuses, and other protective devices that ensure safe power distribution. Check with a local pro for your specific job. Key cost drivers include panel amperage, indoor vs outdoor location, wiring length, and whether a full panel upgrade or rerouting is needed. You might find a small plastic unit for the price of a fancy dinner, or an industrial-grade stainless steel beast that costs as much as a compact car. The “how much” depends entirely on.