★ 5.0 Stars • 100+ Five-Star Reviews

Aggressive Dog Training Gaithersburg, MD

Get started with Good K9 Academy's aggressive dog training in Gaithersburg, MD. Whether your dog shows aggression toward people, other dogs, or both, our trainers address the root cause and transform your dog into one you can trust and feel safe with again. Get started today by claiming your free consultation.

Aggressive dog training specialist in Gaithersburg MD
EXCELLENT
★★★★★
Based on 100+ reviews on Google
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Emily Beitzel
★★★★★

Okay, let's start with the dog. We adopted Gelato in November 2022 and were told he was "reactive" when he saw other dogs. Our previous pooch wasn't reactive, but he didn't get along with everyone so it wasn't a deal breaker when he heard "reactive". The most important I think to recognize is that Gelato was in a shelter for almost 4 months being surrounded by constant barking. According to the shelter Gelato lived with another dog previously before being surrendered due to the owners age. Anyway the first week we had Gelato at home he was definitely reactive but not aggressive. He was afraid of everything. As a result, when he saw another dog his hackles went up and he would stand on his hind to legs and basically scream at the other dog.My boyfriend began looking into basic training for us and after some research, thought it would be better to have proper training. I agreed and we began the search for an actual training program. The first one he actually stumbled upon was good k9 academy. At first when my boyfriend said "board and train" oh my gosh I don't think I ever said no so fast. All those horror stories of dogs being left in hot vans or getting sick or getting loose etc. I was against it at first but my boyfriend showed me the profile and the alumni and I began to see that this isn't just any old PetSmart board and train pet hotel kind of deal. It's people who really care about your pet and the proof is in the poochies. There were so many success stories of dogs who were similar to Gelato. So we scheduled our consultation and Andrew came out himself to meet us and Gelato. He was very honest and up front about everything which I really appreciated.At the consultation he brought another dog with whom he was working with and Gelato did his thing and freaked, so Andrew decided to put the e-collar on to test and see how he would react and to my surprise but also relief, Gelato stopped! After some more consultation type things (i.e. walking next to each of us, walking past the other dog) we realized that Gelato actually has a chance at learning how to be a dog again. Andrew had actually said that he wanted to work with Gelato himself! So my boyfriend and I took the night to discuss which trainings we'd prefer and we decided to take the leap and invest in Gelato's well-being.Fast forward some more and we are dropping Gelato off at Andrews for the (at least) two weeks board and train. We were also prepared to have Gelato there for longer due to his reactivity and not knowing how he would do. Upon that first drop off night Gelato was reactive and barking but by the next day, Andrew sent us pictures and videos of his progress and it was amazing what changed in just a matter of a couple of days. Andrew was very communicative with us and was always sharing videos and pictures and answering our many texts and phone calls about any questions or concerns we had.Gelato has been home for a bit now and Andrew was very helpful at the drop off and has continued to offer his help while gelato transitions back into his own home. He even offered to have Gelato come for a play date with his own dogs! Gelato has learned so much and we owe it all to good k9 academy! They taught him how to be a dog again and I am forever grateful for Andrew and his staff who take the time to work with dogs and people. Words can't describe how amazed I am with Gelato's training and confidence. He can run and play and have fun without being anxious! He learned some advanced commands and loves getting treats for being such a good boy. It's reassuring knowing that my dog is safe when we go for walks and my own vigilance and anxiety can be lowered because of the training both Gelato and I have now. We are both more confident!This team is the best of the best and they are genuine dog lovers. They are very knowledgeable and they truly care about the pets and their owners. This has been the best experience for us and Gelato. Thank you so much, Andrew and your crew!

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Robert Stacy
★★★★★

We sent our poorly behaved 2 year old AHT for a two week training with Good K9 Academy. We could barely take our dog on a walk due to his terrible pulling, leash aggression towards other dogs and we could also not let him off leash as he would run away. Our family cannot believe how well behaved he is, how he walks in a perfect heel, and will completely ignore other dogs now. When we have visitors at the house he will sit in place until we release him. We cannot be happier with the results from Good K9 Academy!

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harsha singhabahu
★★★★★

My dog jimmy was aggressive, didn’t listen at all, would always jump on people and pull during Walks. We searched everywhere for a good place to teach him and eventually found Good K9. We talked to Andrew and he introduced us to skylar who would be in charge of training jimmy. I remember the first day he was very aggressive towards skylar but after a couple days he began to warm up to him and actually started learning. After 3 weeks he came back and he was totally different in all the right ways. I am very thankful for skylar and Andrew and hope Skylar gets more clients in the future! Thank you for everything skylar!PositiveResponsiveness, Reliability, Quality, Professionalism, Value

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Dana Thomas
★★★★★

If I could rate with 6 stars I would!! Thank you Andrew and Caroline for all your training and genuine care for my 5-year old German Shepherd who came to me under difficult circumstances (attacked another dog in the home). Your initial 2-hour session produced an immediate improvement in our walks, where I felt confident to do so in my neighborhood while we waited for the e-collar training; and now that e-collar training is complete my GS is very calm and under control when near other dogs (including those barking at her!). Moreover, I truly appreciate how you helped a dear friend from NJ who adopted/rescued an adult, quite dog-aggressive Rott-Dobbie mix - helping out in an emergency situation so that she could keep her dog and have basic control until she could enroll him in a similar training program near home.The text updates, pictures and videos throughout the training program were so helpful and appreciated! And value all the tips including you setting realistic expectations! We look forward to joining the Saturday walks and daycare - Thank you! Absolutely recommend your services!PositiveResponsiveness, Reliability, Quality, Professionalism, Value

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Michael Zuckerman
★★★★★

From the first consultation at my house with Andrew, my wife and I knew we were working with professionals. Skylar worked with our stubborn six year old terrier mix who was aggressive at our front door and only listened to us when he felt like it. At the end of 5 days we had a completely different dog who was no longer reactive to people at the door, and better yet responds to all our commands! I highly recommend Good K9 Academy and all of their trainers!PositiveResponsiveness, Reliability, Professionalism

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Nina G
★★★★★

Skylar and team did wonders for our 9 month old Shar Pei puppy, Homer. We got Homer when he was 8 weeks old. He came to us and we were told he was “shy.” Unfortunately with Covid social restrictions and Homer’s intense fear of everything, this developed into fear aggression. Se did a 1 week day train and Homer has made terrific progress! While Homer still exhibits some fear he’s no longer reactive and the consistency and structure he learned with Good K-9 Academy has helped him so much. I highly recommend them and look forward to continuing Homer’s socialization and reinforcing his training through their weekly pack walks!

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Professional Help for Aggressive Dogs

If your dog has shown aggression, you are probably feeling overwhelmed, scared, and unsure of what to do next. Many dog owners are told that aggressive dogs cannot be helped, or worse, that they should be rehomed or euthanized. At Good K9 Academy, we strongly disagree. Aggression is a behavioral problem, and like most behavioral problems, it can be addressed with the right training, management, and commitment. Our team has worked with hundreds of aggressive dogs across Gaithersburg, Bethesda, Potomac, Rockville, and the greater Montgomery County area, and the vast majority achieve significant, lasting improvement.

Aggression in dogs takes many forms. Dog aggression involves threatening or attacking other dogs. Human aggression involves growling, snapping, or biting at people. Resource guarding is aggression triggered when someone approaches the dog's food, toys, or resting spots. Territorial aggression occurs when the dog reacts aggressively to anyone entering their perceived territory. Fear-based aggression is a defensive response triggered by situations that overwhelm the dog. Each type requires a different training approach, and accurate diagnosis is the first step.

During your free consultation, our trainers evaluate your dog's aggression triggers, body language, and history to determine the type and severity of the aggression. We discuss realistic goals, recommend the right training program, and give you an honest assessment of what to expect. We never sugarcoat the situation, but we also never give up on a dog without trying. Good K9 Academy's seven-plus years of experience with aggressive dogs gives us the knowledge and confidence to take on cases that other trainers turn away.

Aggressive dog being evaluated by professional trainer
Behavior modification training for aggressive dog

Structured Behavior Modification for Lasting Change

Aggressive dog training at Good K9 Academy is built on a foundation of structure, clear communication, and systematic behavior modification. We start by establishing a solid obedience foundation because a dog that responds reliably to commands like sit, down, stay, place, and heel has the tools to choose obedience over aggression in triggering situations. This structured obedience work also shifts the relationship dynamic between dog and owner, building trust and establishing the handler as a calm, consistent leader.

Once the obedience foundation is in place, we begin controlled exposure to aggression triggers at safe distances and intensities. For dog-aggressive dogs, this might mean structured walking near other dogs at distances where the aggressive dog can remain calm. For human-aggressive dogs, this might involve controlled introductions with new people in neutral environments. We use balanced training methods, including e-collars, structured commands, and positive reinforcement, to provide clear feedback and help the dog make better choices under pressure.

Management is an equally important component of our aggressive dog program. While training changes behavior over time, management prevents dangerous situations during the training process. We teach you how to manage your dog safely in the home, on walks, and around guests. This includes leash handling techniques, muzzle conditioning when necessary, environmental management, and body language reading so you can predict and prevent aggressive episodes before they happen.

Immersive Training for Serious Cases

For dogs with moderate to severe aggression, our board and train program is often the most effective option. Your dog lives with their dedicated trainer, allowing them to work with your dog daily in a controlled, structured environment where triggers can be introduced safely and systematically. Because we only take a few dogs at a time, your aggressive dog receives individualized attention and carefully managed interactions throughout the program.

During board and train for aggressive dogs, we focus on building impulse control, increasing frustration tolerance, and teaching the dog to defer to their handler in the presence of triggers. We also address any underlying anxiety, fear, or insecurity that may be driving the aggressive behavior. Many aggressive dogs are actually deeply insecure, and giving them confidence through structured training and clear expectations reduces the perceived need for defensive aggression.

At the end of the program, we conduct a thorough two-hour turnover session with you. Working with an aggressive dog requires specific handling skills, and we make sure you understand every technique, every tool, and every management protocol before you take your dog home. We walk you through real scenarios, practice responses, and give you a clear plan for maintaining progress. Ongoing support and follow-up are always available because we understand that living with an aggressive dog is an ongoing commitment, not a one-time fix.

Board and train program for aggressive dogs
Safe handling techniques for aggressive dogs

What You Need to Know About Aggression Training

Honesty and safety are the cornerstones of our aggressive dog training program. We will always give you a realistic assessment of your dog's prognosis and set expectations accordingly. Some aggressive dogs can be rehabilitated to the point where they are safe and manageable in nearly all situations. Others will always require careful management and will never be appropriate for off-leash dog parks or unsupervised interactions. We help you understand where your dog falls on this spectrum and build a plan that keeps everyone safe.

Safety protocols are built into every aspect of our aggressive dog program. We use muzzle conditioning so your dog is comfortable wearing a muzzle when needed. We teach you proper leash handling and positioning techniques for managing an aggressive dog on walks. We address household management, including how to safely introduce your dog to new people, separate dogs in multi-dog homes, and prevent resource guarding incidents. These management skills are just as important as the training itself.

Good K9 Academy has earned the trust of families across Montgomery County, Germantown, Silver Spring, Clarksburg, Poolesville, Columbia, and Washington DC for aggressive dog training. Our 100+ five-star reviews include numerous families who came to us with dogs that had been turned away by other trainers. We guarantee results. Your dog will receive expert care, structured training, and our full commitment to transforming their behavior so you and your dog can live a safer, better life together.

Serving Dogs Across the Maryland, DC & Virginia

Good K9 Academy serves dog owners throughout Montgomery County and the surrounding communities from our Gaithersburg facility.

GaithersburgBethesdaPotomacRockvilleGermantownSilver SpringClarksburgPoolesvilleColumbiaWashington DC

Aggressive Dog Training Questions

Can aggression in dogs be fixed?

In most cases, aggression can be significantly reduced through professional behavior modification training. The degree of improvement depends on the type and severity of aggression, the dog's individual temperament, and the owner's commitment to maintaining the training. Some dogs achieve near-complete resolution, while others require ongoing management alongside improved behavior.

Is it safe to board and train an aggressive dog?

Yes. Good K9 Academy is experienced in safely housing and training aggressive dogs. We are a boutique facility that only trains a few dogs at a time, and we use structured management protocols to keep all dogs and people safe throughout the program.

How long does aggressive dog training take?

Most aggressive dogs benefit from a three to four week board and train program or an extended series of private training sessions. The timeline depends on the type and severity of aggression, the dog's learning speed, and the owner's consistency. We provide a realistic timeline during your free consultation.

What causes aggression in dogs?

Aggression can be caused by fear, insecurity, poor socialization, resource guarding instincts, territorial behavior, frustration, pain, or a combination of factors. During the evaluation, we identify the underlying cause so we can target our training approach accordingly.

Will my aggressive dog need to wear a muzzle?

We may recommend muzzle conditioning as part of the training program, especially for dogs with a bite history. Muzzle conditioning teaches your dog to be comfortable wearing a muzzle, which is a safety tool that allows us to train in closer proximity to triggers while keeping everyone safe.

Need Help with an Aggressive Dog?

Do not give up on your dog. Contact Good K9 Academy for a free, honest evaluation of your dog's aggression and a plan to move forward.

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