Bark Busters In Home Dog Training Hamilton is part of Canada's largest dog training company. We specialize in solving dog behaviour problems. The key to a great relationship with your dog is good leadership and clear communication. Bark Busters can help you achieve this. In fact you will see significant improvements in the first few hours. Eliminate problems that cause you and your dog frustration and anxiety with our tailored, in your home, dog friendly approach. It comes with a Written Lifetime Guarantee.