We had a very good experience with K9. Andrew was a very good trainer and helped train our Goldendoodle.

Good K9 Academy
Gaithersburg, Maryland
About Good K9 Academy
Good K9 Academy is a boutique dog training facility in Gaithersburg, MD with 100+ five-star Google reviews and 10+ years of experience. We turn reactive, anxious, and unruly dogs into calm, confident companions through balanced training methods combining positive reinforcement and e-collar work. Our Board & Train program is unique: dogs live with their dedicated trainer in a real home, not a kennel. We also offer In-Home Training, Puppy Training, Group Classes, Aggressive Dog Training, Boarding, and Daycare. Serving Gaithersburg, Rockville, Germantown, Bethesda, Potomac, McLean, and the broader Maryland, DC, and Virginia area. Get started today with a free in-person consultation!
Training & services
Training goals
- Behavior consultation
- Crate training
Program details
Teach your dog to love the crate as their calm, safe space. Positive-association training that reduces anxiety, prevents destructive behavior, and creates routine. Works for puppies and adult dogs with bad crate history. Free consultation.
- House training
Program details
End indoor accidents for good with our schedule-based housebreaking program. Proven routine that works for puppies and adult dogs. Fast results, less stress, a clean home. Includes crate training support. Free consultation.
- Leash training Customer-reported
- Obedience training
- Puppy training
Program details
Foundation training for puppies from 12 weeks old. Build obedience, socialization, and confidence during the critical developmental window. Prevent biting, jumping, and anxiety before they become problems. Set your puppy up for a lifetime of good behavior.
- Recall training
- Socialization
Behavior support
- Aggression training
Program details
Specialized behavior modification for dogs with aggression toward people, dogs, or both. We address the root cause, not just the symptoms. Most dogs can be rehabilitated with the right approach. Guaranteed results. Free consultation, no judgment.
- Barking
- Counter surfing
- Jumping up
- Reactivity training
Program details
If your dog lunges, barks, or loses control on walks, we turn that stress into calm, focused walks. Trigger desensitization, real-world proofing, and balanced training methods. Transform walks from dreaded to enjoyable. Free consultation.
- Separation anxiety
Program details
End destructive behavior, excessive barking, and panic when you leave. Build your dog's independence and confidence so they can stay calm alone. Gradual desensitization with proven methods. Works for dogs of all ages. Free consultation.
How training happens
- Board and train
Program details
Our 2-week Board & Train is the fastest path to off-leash obedience. Your dog lives with their dedicated trainer in a real home — not a kennel — for immersive daily training. Returns home calm, confident, and reliable. Free alumni pack walks for life.
- Day training Customer-reported
- Group classes
Program details
Structured group practice sessions for dogs with basic obedience. Practice and proof your dog's skills in real-world environments with other trained dogs. Board & Train graduates get first access. Eligibility evaluation required — not a beginner class.
- In-home training
Program details
Private 1-on-1 dog training at your home in Gaithersburg and the greater MD/DC/VA area. We address problem behaviors where they actually happen — jumping on guests, counter surfing, door manners, and more. Personalized plans for every dog. Free consultation.
- Owner coaching Customer-reported
- Pack walks
- Private training
Dog age
- Adult dogs
- Puppies
Support between sessions
- Personalized training plans
- Photo updates
Assistance and working dogs
- Medical-alert and mobility assistance
- Service dog training
Program details
Professional service dog training for mobility assistance, psychiatric support, medical alert, and other disability-related tasks. Public access preparation and reliable task performance in real-world environments. Free consultation to assess your dog.
- Therapy dog training
Program details
Prepare your dog for therapy dog certification. Visit hospitals, nursing homes, schools, and community events to provide comfort and joy. Obedience and temperament training for therapy work. Free temperament evaluation.
Training approach
- Balanced training
- Positive reinforcement
Additional services
- Boarding
Program details
Professional dog boarding with experienced trainers — your dog stays with someone who knows them, not strangers in a kennel. Daily exercise, structured routines, and daily photo updates. Peace of mind while you travel. Book early for holidays.
- Daycare
Consultations
- Free consultation
Other listed services
View 6 additional details
- Dog training
Program details
Professional dog training in Gaithersburg, MD with 100+ five-star Google reviews and 10+ years of experience. Balanced training for all breeds, ages, and behavior issues. Board & Train, In-Home Training, Group Classes, Puppy Training, and specialized behavior work. Free consultation.
- 1-Hour Lessons
- Advance Lessons
- Dog Crate
- Dog Testing
- Family Dog
Confirm current programs and availability directly.
Customer reviews
Google listingMentioned in reviews
- Board and train 35
- Leash pulling 21
- Reactive dog training 17
- Daily updates 13
- Off leash walking 10
- Day training program 7
All 10 topics
- Distraction ignoring 6
- Leash manners 5
- Pulling on walks 5
- Stubborn dog training 4
Google review topics, not confirmed services.
Sophie had two week board and train with Good K9 academy. She has learnt a lot from her lessons. She is a 2 year old german shepherd. She used to react everything around us - passerby, squirrels, bunnies, kids, bikes - you name it. After coming back from the two weeks training s…Read full reviewClose full review
Sophie had two week board and train with Good K9 academy. She has learnt a lot from her lessons. She is a 2 year old german shepherd. She used to react everything around us - passerby, squirrels, bunnies, kids, bikes - you name it. After coming back from the two weeks training she has calmed down and stopped reacting to everything. Now we are able to walk in peace, she stays next to me during the walks and does not drag me to everything. David did great job. I’m so happy. I also liked how Andrew keeps in touch to see how Sophie is doing and if I have any questions.
Our husky was a true escape artist and we wanted to get him off leash trained for our own piece of mind (after he ran off). It has been life changing. We know if he gets off leash that he can emergency sit, emergency down, and come back! Additionally, he know walks in heel even when walking by reactive dogs.
Our dog Milo did a board and train with Tony for 2 weeks and we are so happy with the results. He sent us daily videos and pictures of how Milo was doing. We were so excited to receive the videos everyday. Milo was dog reactive and did not know how to walk on leash well. Tony did…Read full reviewClose full review
Our dog Milo did a board and train with Tony for 2 weeks and we are so happy with the results. He sent us daily videos and pictures of how Milo was doing. We were so excited to receive the videos everyday. Milo was dog reactive and did not know how to walk on leash well. Tony did a great job fixing both those issues for us and taught Milo many more commands. Milo is now walking on leash perfectly and passing dogs in the neighborhood with no reactions. I would recommend Good K9 and Tony to anyone with a dog that needs training. Looking forward to taking Milo to the pack walks with Good K9 on Saturdays to see his friends!
We left Milo with Tony for a two week board and train, and are beyond happy with the results. Milo was very reactive towards other dogs and beyond going to his crate didn’t know any commands very well. Within two weeks Tony was capable of teaching Milo to heel, sit, place, lay do…Read full reviewClose full review
We left Milo with Tony for a two week board and train, and are beyond happy with the results. Milo was very reactive towards other dogs and beyond going to his crate didn’t know any commands very well. Within two weeks Tony was capable of teaching Milo to heel, sit, place, lay down, and most importantly remain well behaved in close proximity with other dogs. Tony is truly an amazing trainer and we could tell in every video was extremely patient with Milo. He took the time every day to send us updates with both pictures and videos. Any pet parent knows how difficult it could be to trust a stranger with your pet. However, after the first day with Tony we knew Milo was in very good hands. On the last day Tony took the time to walk us through e-collar education, the new commands Milo has learned, additional manners, and answer every question we could have. We are very happy we decided to go to Good K9 Academy for our dog training needs. I would most certainly recommend them to friends and family.
Original customer experiences from the collected Google data. Ratings without comments follow written reviews.