Dog Training in Northern Denver
Effective Dog Training That Creates Real Change
Science-based training that builds real-world skills and lasting results.
Small-group classes that build essential skills with personal coaching.
Puppy Classes
Canine Life Skills
Scent and athletics
Private sessions for faster progress with personalized support.
Reactivity & leash skills
Manners at home
Confidence-building
Get clarity on the “why” and a plan that actually fits your dog.
Behavior assessment
Custom training roadmap
Next-step recommendations
We provide modern, positive-reinforcement dog training and behavior consultations for dogs of all ages. Our programs develop practical skills and lasting behavior change, grounded in current canine behavior research.
We teach dogs to think clearly and make better choices in challenging situations. Our approach emphasizes preparation, confidence, and reliability through positive reinforcement, not dominance or punishment.
- Short, fun, game-based training sessions
- Skills introduced before stressful situations occur
- Confidence developed through positive reinforcement
- Proven methods used by owners worldwide
In every struggle is an opportunity for growth.
Struggling with your dog’s behavior can be stressful, and you’re not alone. Whether it’s leash pulling, anxiety, or reactivity, we help dogs build the real-life skills they need to feel calmer, more confident, and more connected to you.
We can help with:
- Pulling on the leash
- Separation anxiety
- Resource guarding
- Barking, lunging, and reactivity
- And more everyday behavior challenges
In every class, a certified behavior specialist works with you to uncover the why behind your dog’s issues, not just manage the symptoms.
Our positive, games-based training delivers real results with personalized support and class options that fit your lifestyle.
With the right approach and the right support, even the toughest behavior struggles can turn into meaningful breakthroughs.
Kathleen Valentine is a certified Pro Dog Trainer and Behavior Specialist, trained by Absolute Dogs and Help! My Dog. She holds advanced credentials from Absolute Dogs, including Pro Dog Trainer, Geek, and Genius certifications, as well as specialized coursework in specific breeds and behavioral challenges.
She is currently pursuing a Level 6 Diploma in Canine Behaviour at Canine Behaviour College, which is equivalent to a bachelor’s degree. This ongoing education enables her to incorporate the latest canine behavior research into every training session.
Kathleen is committed to ethical, humane training methods. These scientifically proven approaches are effective, engaging, and enjoyable because they align with how dogs naturally learn.
Client Success Stories
Do you offer puppy training classes?
Yes. We offer puppy training classes focused on building strong foundations, confidence, and real-world skills. Our puppy programs help prevent future behavior issues by teaching skills early using positive reinforcement.
What is science-based dog training?
Science-based dog training uses modern behavioral research to guide how dogs learn. It focuses on positive reinforcement, skill development, and emotional well-being instead of punishment or dominance-based methods.
Do you work with reactive or aggressive dogs?
Yes. We offer behavior consultations for dogs struggling with reactivity, fear, anxiety, or aggression. Our approach focuses on understanding the underlying causes and building skills that help dogs cope better in real-life situations.
How long does dog training take to work?
Every dog is different, but most owners start seeing improvement within a few sessions. Lasting behavior change comes from consistent practice, the right training plan, and addressing both skills and emotional needs.
Is positive reinforcement dog training effective?
Yes. Positive reinforcement is widely recognized as one of the most effective and humane training methods. It builds trust, motivation, and long-term behavior change without using fear or punishment.
Do you offer in-home training or group classes?
We offer both group training classes and one-on-one consultations. Group classes are great for skills and social learning, while private sessions allow for personalized support with specific behavior challenges.
What areas do you serve in Colorado?
Cosmic Dog Training serves Northern Denver and surrounding areas, including Lafayette and Boulder County. Contact us to confirm availability for your location.