At 42K9 Dog Training, we specialize in personalized, positive-reinforcement training for dogs of all ages and backgrounds. Whether you’ve just brought home a new puppy or you're working through behavior challenges with a rescue, we’ll meet you where you are — literally. All sessions are conducted in your home or in a real-world public setting to give your dog the best chance to succeed in everyday life.
Start your pup off right!
We help build strong foundations for puppies aged 8 weeks to 6 months. Our program covers crate training, potty training, socialization, leash manners, and basic obedience cues like sit, stay, and come.
Helping rescue dogs adjust and thrive.
Rescues may come with unknown histories — we provide patient, structured training to help them feel secure and confident in their new home. Focus areas include trust-building, leash skills, and establishing household routines.
Struggling with unwanted behaviors? We can help.
We work one-on-one with you and your dog to address challenges such as reactivity, fearfulness, leash pulling, excessive barking, or jumping. Our approach is gentle, effective, and tailored to your dog’s specific needs.
All sessions take place where your dog lives and learns — either in your home or out in public spaces like parks, trails, or dog-friendly neighborhoods. This ensures that training is practical, relevant, and immediately applicable.
Let’s build a calm, confident, well-behaved companion — together.
Depending on location
Within a 10-mile radius of Holliston, MA. Please add on an extra $5 for every 5-mile radius outside of the Holliston, MA radius for travel expenses.
Puppies need shorter training sessions based on their ages. For puppies 20 weeks and under.
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