No Dog training means more to most new puppy owners than that first important lesson: Not in the House! Teaching your Dog to go to the toilet outside the home, not in it, usually starts between six and eight weeks of age. Dogs as young as four weeks old, have been started on the house training, but at such a young age, a puppy is unlikely to have enough muscle control. Like any dog training, the trainer?s patience is as important as the dog's temperament. 'Sit', 'stay' ...