Electrical contractor pricing: hourly rates $50-$100, or flat-rate pricing by job type. Average markup 30-50% on materials. Key factors: job complexity, permits required, and local market rates. Understanding distribution box cost involves examining the comprehensive investment required for electrical distribution systems that serve as crucial infrastructure components in residential, commercial, and industrial settings. The distribution box cost encompasses not only the initial purchase. YUEQING YISEN ELECTRONIC TECHNOLOGY CO. This sheet metal part commissioned by a US customer has a high degree of customization and requires precise manufacturing processes to meet the customer's requirements. With the practicality and professionalism of our products, we can satisfy you.