Dogs who bark when they’re left alone are usually just expressing a need for more engagement, more attention, and more exercise. Here are the top solutions on how to stop a dog from barking when left alone at home: Go for a walk before you leave. Offer interactive toys that move by themselves, try Wicked Ball. Hire a dog walker, try a site like Rover or Wag! Turn on some sound, try DogTV or Youtube Channels like Relax My Dog. Give your dog a special treat. Consider a companion, maybe another dog or even a cat!