1,3-Dienes are versatile raw materials for building molecular complexity. We report herein mild conditions for the regio- and stereoselective [only the (E) isomer obtained] 1,4-carboalkoxylation of 1,3-dienes. This electrochemical multicomponent reaction provides an eco-efficient and straightforward access to a diverse range of (E)-polyfunctionalized allyl ether products, without requiring any metal catalyst.