X

Ready for real training?

Whether we’re your first choice or a last resort, Koru K9 will ensure that your canine companion is the perfect addition to your pack.

San Diego Aggressive Dog Training

For dogs with big behaviors, and families who won’t give up. 

If the leash reactivity or aggression feels unfixable, we want you to know it’s not. 

Rebuild trust. Create structure. Enjoy life with your dog again.

A Man Walking a Group of Dogs on a Leash
  • Home
  • San Diego, CA: Aggressive Dog Training

Aggressive Dog Training in San Diego

Our San Diego dog training team at Koru K9 are experienced in dealing with aggressive dogs and rehabilitating even the most challenging dog behavior issues.

If any of this sounds familiar, you’re in the right place:

  • Being dragged down the street or bracing for your dog to lunge on walks
  • Biting, nipping, or aggressive behavior toward strangers or guests
  • Guarding food, toys, or space
  • Ignoring commands the moment there’s a distraction

Or maybe you’ve already tried everything: treats, group classes, “quick fix” programs, and nothing has worked.

It doesn’t have to stay this way.

At Koru K9, we help dogs—and their owners—move past frustration, stress, and uncertainty into calm, reliable behavior you can trust in the real world.

Whether you’re dealing with aggression, reactivity, or serious behavior challenges, Koru K9 provides professional dog training in the San Diego Area designed to create real, lasting change—not temporary fixes.

Our programs go beyond obedience. We focus on building:

  • Clear communication
  • Structure and accountability
  • Confidence and trust between you and your dog

You’ll work closely with an experienced dog trainer to:

  • Stop aggressive and unsafe behaviors
  • Improve leash control and responsiveness
  • Create calm, structured routines at home
  • Build reliable obedience—even around distractions

This is training that carries over into your everyday life, not just controlled environments.

We’ve helped thousands of dog parents restore calm, structure, and confidence in their homes.

Let us help you do the same.

Schedule Your FREE Phone Consultation

Support That Lasts Beyond the Sessions

Training doesn’t end when the appointment does—and neither does your support. Every Koru K9 program includes 1–12 months of LunaDogAI, our trainer-built digital guidance system. You’ll have access to step-by-step help, video feedback, and real-time answers during the moments when behavior actually happens at home.

It’s like having your trainer in your pocket—so progress doesn’t stall, confusion doesn’t spiral into setbacks, and your investment is protected long after the final session.

 

Dog Behavior Issues We Help:

  • Dog-to-dog aggression
  • Human Aggression
  • Resource or food guarding
  • Dogs fighting in the home
  • Leash reactivity
  • Pulling on leash
  • Fear based behaviors
  • Separation anxiety
  • General anxiety
  • Destructive behaviors
  • Obedience issues
  • Jumping
  • Puppy training

Koru K9 Aggressive Dog Training Programs:
Transformation at the Speed of Dog

Ever wonder why quick-turn programs don’t work? It’s because they use forced compliance, creating unreliable behaviors that often lead to regression.

Our programs are different: we build trust, clarity and real-world readiness at a pace that respects your dog’s needs.

We use a balanced, relationship-first approach that blends:

  • Clear communication
  • Structure and accountability
  • The right mix of guidance, reinforcement, and tools

This means we:

  • Identify what your dog finds rewarding and meaningful
  • Establish strong foundational obedience
  • Use appropriate training methods to reinforce behavior in a way that builds trust

The result is lasting behavior change rooted in connection, consistency, and communication your dog can trust and understand.

This is where better behavior begins. Fill out the form to start your dog’s transformation. 

From Reactive to Reliable — See the Power of Our Board & Train Program.

When Nothing Else Worked, Koru K9 Did

Loading...

Dog Training Program​s for Leash Reactivity or Aggression

Dog Board & Train Programs
Immersive training that creates clarity and consistency.
Board & Train provides daily structure and professional guidance so behaviors are shaped in a controlled, real-life setting. We don’t rush dogs or chase shortcuts—progress happens at the speed of the dog. Real-world exposure, accountability, and clear communication build a foundation you can confidently continue at home.
See if Board & Train is the right fit →

 Hybrid Training Programs
The best of Board & Train + private coaching.
A blend of immersive Board & Train and private sessions. This option gives you structured training with professional handling and the guidance you need to continue progress at home. Ideal for dogs with mild to serious behavior challenges who need real-world results and owner involvement. See if Hybrid is a fit →

Private, In-Home Dog Training
Hands-on support with your trainer in your home.
Our trainer comes directly to you and works alongside your family to build clear communication and reliable obedience. Best for obedience training, leash manners, and behavior issues that need structured coaching and routine.
Book a Private Training Consultation →

Ready to get compliments on your well-behaved dog?

Let’s turn the chaos into calm, and get you enjoying life with your dog again.

Most people come to us thinking their dog can’t be helped.

They leave wondering why they waited so long