Expert Dog Trainers

Michael Konstantaras & Cassidy Lewis

Our goal is for your dog to love and respect you, not fear you. We can help! ANY BREED. ANY AGE. ANY ISSUE.

Mutt" See TV: Training Tips for Pandemic Pups

Watch Michael's Recent Appearance on NBC's Today Show

Over 23 million households adopted a new pet over the Covid-19 pandemic. Watch Michael Konstantaras from Bark Busters give tips to help your dogs adjust to the end of work-from-home.

Watch the video

Jennifer G.
Jennifer G. | Stamford

Bark Busters are wonderful, highly recommend! They have really done a great job with our puppy and helping us get set up with her at home. Their training techniques are not only effective, but also ...

Jamie S.
Jamie S. | Norwalk

Within two hours of meeting me and my very reactive dog, Mike had made incredible strides with my dogs behavior. My dog is extremely reactive, he tries to attack every dog we see and pretty much every...

Jessica P.
Jessica P. | danbury

We've been working with Mike and Cassidy for a few months now and we saw a positive change in our dogs behavior immediately following the first session with them. We unfortunately lost one of our dogs...

Abigail A.
Abigail A. | Stamford

Cassidy and Mike were absolute lifesavers and worth the investment! They are extremely knowledgeable, professional, and responsive. My rescue was experiencing severe separation anxiety and incessantly...

Melodie E.
Melodie E. | Stamford

Cassidy and Mike are Wonderful Pet Trainers. Cassidy showed me how to use other ways for Kobe(my pit bull dog 4yrs old) to be more efficient with commands. She was also able to explain anything that I...

Jill A.
Jill A. | Bridgeport

Our shelter dog was a 3yo boxer mastiff with zero training when we adopted him. He was mouthy and difficult to walk. We were nervous if he would be the right fit for our son, but we hired Mike and ...

Lisa D.
Lisa D. | Norwalk

My dog Frankie is a rescue from the streets of Puerto Rico. He is my ninth dog. He has also been the most difficult of all my dogs to train. I have had Frankie for over two years. He’s smart, and he...

Marisa B.
Marisa B. | Stamford

We worked with Cassidy after our 80lb dog Bruno nipped at our 10 month old. We had the most incredible experience from start to where we are now with Cassidy (until more life changes happen!) Bruno is...

Holly G.
Holly G. | Newton

Mike and Cassidy have been amazing. They obviously love dogs. They give clear , logical, helpful guidance for training dogs to be good citizens. Cassidy was very helpful when I needed assistance with ...

Leah H.
Leah H. | Stamford

We when first brought Hugo home from the rescue we knew we needed guidance. Our second French Bulldog but our first adopted young adult dog, we had little idea what his previous life looked like. One ...

Elizabeth L.
Elizabeth L. | Norwalk

Cassidy has done an amazing job with our two dogs Luna and Snooker. They have very different personalities and challenges, and we really appreciate Cassidy's expertise and ability to flexibly adjust ...

Michael C.
Michael C. | Stamford

From the moment I spoke with Mike, I knew we were in good hands. His extensive knowledge and genuine passion for working with dogs and helping people were immediately apparent. After just one Zoom ...

Carol O.
Carol O. | Stamford

Last Monday Michael came to my home to help me with my beautiful two year old Sherinian.When we go for a walk Mia would bark at everything and especially everyone we passed she wouldn’t let anybody ...

Donna M.
Donna M. | Fairfield

Fairfield Connecticut has its very own dog whisperer. Michael is the absolute BEST! He was first recommended to us via a friend and then through a quick Facebook search on behavioral dog trainers, and...

Ann M.
Ann M. | Greenwich

We needed help training our pup who is full of energy and at times rather mischievous. Cassidy came to our home, trained the whole family, and within the first hour together, we were amazed how our ...

Edward G.
Edward G. | Lake Worth

I have been working with Michael for 9 years on continued maintenance of our dog Sammy. Yesterday we had to put are other dog down after 14.7 wonderful years. Naturally I called Michael to help us ...

Chris D.
Chris D. | FAIRFIELD

We have a Cavalier King Charles Spaniel puppy and wanted to be more proactive this time with training and called Bark Busters. Cassidy has been terrific - she came to our house and spent several ...

Dina B.
Dina B. | Fairfield

We needed help training our puppy who has a mind of his own. Michael came and immediately began training the whole family. Our dog responded the first time meeting him. He is teaching us how to set ...

Pam B.
Pam B. | Trumbull

I am the grandma of two dogs who where not getting along in my home. Cassidy came and worked with Josephine & Lincoln and within 20 minute she had both dogs walking together and in the house ...

Wendy T.
Wendy T. | Sandy Hook, Fairfield

Michael helped me train my dog, Kiki this afternoon. I really felt lucky to find him. I felt completely at ease with his professional guidance. I brought my Austrailian Cattle Dog, Kiki, with me and ...

Kimberly Van M.
Kimberly Van M. | Darien, Fairfield

I cannot say enough good things about Bark Busters. Our family worked with Cassidy, Mike's partner, and she was amazing. Our 3-year old Brussels Griffon barked at everything...the doorbell, buzzers on...

Shona G.
Shona G. | New Canaan

Having had a small dog for 11 years, we decided to add to our family and within 6 months we had added 2 rescues, who loved their new family, but weren't so trusting with visitors coming into the ...

Kimberley C.
Kimberley C. | Stamford, Fairfield

My 8 year old Goldendoodle Sailor began exhibiting aggression towards other dogs in the past year. I was very concerned about the liability and why my sweet doodle had changed. Cassidy spent an ...

Kyra G.
Kyra G. | Bridgeport, Fairfield

Cassidy was very helpful last year with our first foster dog who was a pitbull mix as she had some issues we had never dealt with in previous dogs. She gave us some great tools and I am happy to say ...

Scott C.
Scott C. | Norwalk, Fairfield

We had Cassidy come to our house to help with our 2 year old female dog (Maribelle) we adopted a couple months ago. She was having issues with pulling very hard on the leash, jumping on people that ...

Hugh K.
Hugh K. | Greenwich

We were thrilled with our training session with Michael Konstantaras . Our 2 french bull dogs responded immediately to the coaching Michael provided . It was amazing. Michael at all times made sure we...

Sally S.
Sally S. | Stamford

I called Mike for our dog Bruno, who has SEVERE separation anxiety (he is the famous ROOF DOG). Our initial session with Mike occurred in August and lasted over 3 hrs. Mike was professional, ...

Dhina K.
Dhina K. | Greenwich

Michael was fantastic! Wilkins has trouble with strangers visiting the house but Michael gave us great exercises to practice and Wilkins stopped his barking instantly! We’re so thankful for this ...

Nancy B.
Nancy B. | Westport, Fairfield

Just WOW. It was like a magic trick. After learning Mike’s methods of communication, I was able to correct CJ’s front door aggression in seconds! I promise to do all of my homework and follow ...

Susie M.
Susie M. | Fairfield

Two weeks ago today my husband and I met Michael for the first time in our home with our dog Cosmo. Immediately we recognized Michael's passion for what he is doing. We waited two weeks to review so...

Emilia R.
Emilia R. | Stratford, Fairfield

I was fostering a rescue dog and she started acting up and lunging for our resident dog, resulting in a bad incident. It often seemed unprovoked and we couldn’t figure out why or what we could do to...

Andrea L.
Andrea L. | Bridgeport, Fairfield

We are absolutely amazed with the training tips and information we received for our two yorkies. We were worried to even have people over for fear of our boy dog biting but now we feel more confident...

Barbara L.
Barbara L. | Norwalk, Fairfield

Not only did Mike deliver a “new” dog to me but the next day our house was chaos with a new window being put in. Not only did she listen when given her command, within 10 minutes Mia never barked ...

Julie S.
Julie S. | Westport, Fairfield

This review is long overdue but three months after our first lesson, we couldn't be happier with Mike's results! If you're on a waitlist, trust me-- he's worth the wait! After the first lesson I saw...

Kathy G.
Kathy G. | Darien, Fairfield

Wow! I have been looking forward to this meeting and it was MORE than I hoped for! From the minute Mike got here, he started to give me the tools with which I’d be practicing with my 1 1/2 yr. old ...

Joli G.
Joli G. | greenwich

Wow! What a difference one session with Mike makes! Our 3 dogs would frenzy bark when people would come over; they'd jump on us and our guests; and they would not come when we called them. Mike came...

Tanya M.
Tanya M. | New Canaan

Michael is truly AMAZING! We've had several trainers over the years, some of which have been extremely expensive and highly regarded ones from new york city and all have failed to properly help us ...

Laura Del S.
Laura Del S. | Weston

We had resigned ourselves to having a dog that bites, and had decided that we would spend Bowie's life protecting people from him, and protecting him from his worst instincts. After spending thousands...

Lindsay S.
Lindsay S. | Stamford

Wow! I am so impressed and thankful for Mike's help with our two rescue dogs. Our dogs were loud, leash-reactive and tough to control around strangers and new dogs. After our first day with Mike, we ...

Kimberly F.
Kimberly F. | Stamford

Mike is fantastic. His priority is not only that our dogs learn how to properly behave but that they feel loved, supported and protected along the way. His approach is kind and it WORKS. Thank you ...

Mary C.
Mary C. | Darien

Mike is absolutely incredible. Highly recommend him for anyone having any issues with your pups. We have three dogs, 10 years old, 8 years old and 10 months. Things were getting out of control ...

Audrey A.
Audrey A. | Wilton

After seeing all the positive reviews, I think it's only fair to say that this training is not for every dog. I have one dog with severe anxiety and after the training, she ended up at the vet with ...

Melissa H.
Melissa H. | Stamford

I will never hire any other trainer ever!! Michael is amazing and has helped us from the moment he walked in the door. If you need a trainer do not waste your money on other trainer, really! He ...

Morgan M.
Morgan M. | Stamford

Mike changed our lives. We have a 3 month old Australian Shepherd puppy. We did some reading on training and being dominant before bringing him home and had been applying those tools. It didn't ...

Ali C.
Ali C. | Stamford, Fairfield

In the search for a trainer for my black lab rescue (Rupert), I came across Mike's information on Yelp and I'm so glad he did. I've only had one session with him thus far but have already seen a ...

Paul S.
Paul S. | Stamford

Mike is a very clear communicator. He gave us several practical tools and a very specific action plan to integrate our new dog into the existing "pack."...

Nicola R.
Nicola R. | Stamford

My husband and I finally met with Michael from Bark Busters yesterday, all we can say is WOW! We actually waited 3 months for our appointment because he was so booked out but it was so worth it!!! We ...

Eric B.
Eric B. | Norwalk

Mike was absolutely fantastic. We have never been able to control our dogs on a leash, and within 10-15 minutes, we had them walking in place, and no longer pulling like maniacs. Both dogs would ...

Patrick J.
Patrick J. | Fairfield

Mike came over last night to help our family out w/ our Frenchie, Luna. We've researched many techniques prior to calling Mike; however, we had no idea what he started teaching us to do. He didn't ...

Julita J.
Julita J. | Stamford

When we met Mike at Bark Busters we were HIGHLY impressed. He has opened our eyes to look at our dogs in a completely different light. He has enlightened us to understand certain behaviors and ...

Stacy K.
Stacy K. | Stamford

We adopted an 8 month old puppy and we noticed she had a lot of anxiety and was afraid of men, she also pulled on her leash and wasn't really responding to my husband and I. Our Vet recommended Mike. ...

MELISSA T.
MELISSA T. | GREENWICH

Michael was wonderful...the way our dog reacted to him and his technique s was truly amazing and I believe wholeheartedly that if we stick to our homework we will achieve the results we are hoping ...

Corrine M.
Corrine M. | Stamford

I have and will continue to highly recommend Mike to friends and family for dog (people) training. As a first time dog owner, I rescued a male pitbull who never received any training. He wasn't ...

Chris A.
Chris A. | Stratford

Mike was awesome! After the initial visit we saw an immediate change in our German Shepard. We never realized just how smart she was. He took his time with us which we appreciated. I have already ...

Robert W.
Robert W. | Westport

We have 4 dogs that get rowdy at times. One of them is a 10 week puppy and the oldest is 13 years. Mike was able to get them all to behave instantly. The older dogs were always on alert and would bark...

Daniel L.
Daniel L. | Norwalk

Mike was fantastic with my wife and I. In just a few minutes he was able to show us that we were not communicating correctly with our dog. Once he taught us how to communicate it has been fantastic. ...

Fadi K.
Fadi K. | Bridgeport

I have no clue where my dog and I would have done without Mike's help. I adopted my pit almost 5 months ago and about a week into it I realized I didn't know what I was doing. Mike's ability to teach ...

Ian T.
Ian T. | Stamford

I have no clue where my dog and I would have done without Mike's help. I adopted my pit almost 5 months ago and about a week into it I realized I didn't know what I was doing. Mike's ability to teach ...

Sam N.
Sam N. | New Milford

I had been looking for a trainer to help me with my dog. My dog is super special he's a service dog. And because of this 99% of the trainers I talked to said NO! They wouldn't even look at him because...

Amanda J.
Amanda J. | Stamford

My husband and I rescued a younger dog two months ago who is great in the house (not taking into account some boundary issues) but is challenging on leash, especially around other dogs. After a month ...

Sue P.
Sue P. | Weston

Pure Gold! With just one session and 2 days of our family using the techniques Michael taught us our house is now so much more enjoyable. We have 3 dogs (all rescues, ages 1 year - 8 years) and the ...

Stacey K.
Stacey K. | Stamford

Michael has impressed us with only one visit with his practical techniques to remind our dog that we are the top dogs in the house, not him. We have let our dog take over the house to the point that ...

Ian T.
Ian T. | Stamford

Wow! If anyone in the Stamford or Fairfield county is looking for a dog trainer look no more. My wife and I have a rescue pit bull , Max, who we took into our family 7months ago, He was very ...

Rowena Z.
Rowena Z. | New Canaan

Thank you Michael for your assistance with my 10 year old Shar Pei Georgie. I thought I would let you know that Georgie slept the night through in his crate, from 10pm to 6am, not a squeak from him. ...

chris G.
chris G. | Bridgeport

First, my dog is a Caucasian Shepherd, not the easiest breed as they have highly instinctual behaviors as it relates to protecting their family; at 150 pounds she is a formidable student. Michael ...

Debbie G.
Debbie G. | Shelton

We have a 10 month old Yorkie -Mix who barks at anything, is basically a terrorist once I come home from work and at nighttime. My husband & I were at wits end. Mike came to see us last night and ...

Marin S.
Marin S. | Stamford

Mike is PHENOMENAL! Our pup is now on her way to being the best trained dog in the city! Not only did Mike offer great training advice but he also offered great nutritional advice for our little girl....

Jessica W.
Jessica W. | Fairfield

Mike came on an emergency basis as I had just introduced a new rescue to my 9-year old, dominant female. In just a half of an hour there was a monumental change in the demeanor of both females. The ...

Cathy C.
Cathy C. | Stamford

I met with Mike last week, and I couldn't be happier. I have a 2 year old French bulldog, who in my opinion has a very complex personality. He can be the sweetest, most playful guy but would sometimes...

Ben F.
Ben F. | Norwalk

Bottom line up front: I whole heartedly recommend Mike the dog trainer to anyone who has a dog. This is my first and only review I've written and it is because I strongly believe in Mike's ...

Jennifer K.
Jennifer K. | Andover

I am a volunteer with Pack Leaders Rescue of CT and I reached out to Michael for assistance with Arwyn, a dog we rescued from a local shelter in Nov. 2015. Shortly after Arwyn went to his foster ...

Matt V.
Matt V. | Bridgeport

Its been a little over two weeks since Michael came to train Winston, my first time rescue dog who is a pit/american bull dog mix. First off, Michael was very impressive, and broke down a lot of ...

Kimberly S.
Kimberly S. | Bridgeport

I was referred to Michael By BARC after I reached out for help for my 3 yr old female pit bull Zoey. Zoey has always been a little unpredictable and very territorial. Over the last 4/5 months things ...

Chelsea M.
Chelsea M. | Stamford

In an hours time Mike helped us to completely change the way our puppy reacts and responds to the door bell, visitors and us! We learned so much from Mike and are grateful for his time and energy in ...

Katherine B.
Katherine B. | Stamford

I am a veterinarian and consulted with Michael on some issues with my puppy. She was having some fear issues, as well as pulling on the leash etc. Michael was very friendly and professional and worked...

Kate M.
Kate M. | Stratford

Michael impressed us immediately with his knowledge and clarity about proper training of our goldendoodle puppy. He instilled a renewed confidence in us that this can be managed by our being ...

Mcgill D.
Mcgill D. | Stamford

I wanted to wait a while before I posted a review too see how effective the training was. And with Michaels help it made my family's life and dogs life way better. My dog Julian was aggressive, ...

Mark M.
Mark M. | Norwalk

Michael was extremely knowledgeable, understanding and compassionate. It was amazing how quickly our dogs responded to his methods....

Ashley S.
Ashley S. | Stamford

Michael saw my new puppy and I for only one session so far and I must say I can truly see a huge difference in my puppy already. She went from uncontrollalable barking to realizing her cage is now a ...

Christina P.
Christina P. | Stamford

Amazing! Mike was so friendly and helpful. We saw change in our dog after the first 15 minutes of him being in our home. For the rest of the night Grayson was so well behaved, and even this morning ...

Sharon P.
Sharon P. | STAMFORD

Michael came to our home to help us with our first puppy. He gave us excellent information on nutrition, crate training, house breaking and how to stop the puppy nipping. Teddy responded to Michael ...

Gabriella N.
Gabriella N. | Stamford

Inside the house Max was always on guard. We are also working on him jumping up. Mike gave us clear and easy to follow instructions. We saw results after the first time. Thank you!...

Brooke R.
Brooke R. | Stamford

My husband and I contacted Mike when we picked up our first puppy, Lemmy. I had grown up with a family dog and my husband had never had a dog. While I grew up with a dog, I had not been involved in ...

Jackie & Anthony T.
Jackie & Anthony T. | Norwalk

I had originally called Michael to help us introduce a foster dog into our home in hopes that they would get along and I would be able to adopt. My dogs were not well socialized and Tuck my ...

Angela Di N.
Angela Di N. | Stamford

I was afraid I wouldn't be able to keep Chubs due to aggression and barking towards other people in the household. He completely did a 360 right after the training. I was actually astonished. My mom ...

Angelica D.
Angelica D. | Stamford

We adopted a pitbull mix about 4 moths ago, his continuous mis behavior led me to be fearful of him. He would run around the house, jump on me and other people, it was just a nightmare. Keep in mind...

debbie and shawn h.
debbie and shawn h. | NORWALK

Michael was fabulous! He really has a passion for this and cares about helping you and your pet. He even went on a car ride with my husband and dog to give techniques while out in the car! We are on...

lisa m.
lisa m. | norwalk

We had an easy life with our two five-yr old female dogs, Lana and Jojo but we decided to get a rescue dog, so Rocco came along. For three weeks my husband and I were exhausted and tired of trying to...

Tiffany U.
Tiffany U. | Black Rock

Yesterday was our first training for our 1 year old Maltese who would bark at anything and everything he heard, would mark around the house and he would take us for walks we didn't walk him. After...

Tanya F.
Tanya F. | stamford

Thank you very much for your help!!! I really learned techniques to calm down my dogs. I truly recommended Michael!!! .Thank you again!!!...

Linda E.
Linda E. | Brookfield

We have had so much success with our 2 year old border collie lab mix from just one session with Michael. Our dog had extreme anxiety and was afraid of anyone who came over. By the end of our session ...

Dawn B.
Dawn B. | Shelton

After speaking with many different trainers about their style and having some of them come to meet Bronx (aka Bronco), I was told he is a "red zone" dog, a liability, and should be put down. My heart ...

Chris and Drea S.
Chris and Drea S. | Milford

We are so happy that you came to see Marley. On the first day we were able to see an overall more calm and respectful dog.. With your pointers and advice we are looking forward to practicing and ...

Joe Z.
Joe Z. | Stamford

Michael's training techniques make sense, work and have been easy to practice on our own in only a few minutes a day. We had awesome results after our initial training session and our Maggie keeps ...

Bari M.
Bari M. | Milford

Thank you Mike so much for your help! I am a veterinarian with two large, energetic and protective dogs, and Mike helped us learn how to communicate with them in a constructive way. We really ...

Clinton S.
Clinton S. | Bridgeport

Michael was great! We have two small dogs, a Yorkie and a Doxie mix who were barking at us all day. After one session with Michael, they are becoming calmer and 90% of the barking has stopped, after ...

Shannon L.
Shannon L. | Easton

We called Mike to help restore some control in our home. We recently added a new addition and we threw off our other 2 dogs, they began fighting. Mike helped us start to re establish control and ...

Ian B.
Ian B. | Fairfield

We were probably the most skeptical family Mike has worked with, as we are experienced big dog owners, and had already brought in a trainer a few weeks earlier and had no results with our new 3 ...

Juni G.
Juni G. | Fairfield

Mike was great!! He taught us some really great tips and training tricks for our 11 week old French Bulldog. He layed a foundation protocol for her potty training, he taught us how to claim what is ...

Noemi P.
Noemi P. | Stratford

I believe the strategies that he gave us are great for the goals we set. I like that Mike did not only focus on the one dog that we had concerns with - he also gave us strategies for our 2 other dogs....

COMMON BEHAVIOR

IN DOGS

Most behavioral issues are learned based on both experiences and environment. That’s why in home dog training is so effective because this is where most behavioral issues occur and it’s where your dog feels the safest. Because your dog can’t speak English and you can’t “speak dog” many miscommunications occur. At Bark Busters, we can teach you how to communicate with your dog in a language he understands.

Areas

We Service

Botsford, Bridgeport, Bridgewater, Cos Cob, Danbury, Darien, Easton, Fairfield, Gaylordsville, Georgetown, Greens Farms, Greenwich, Hawleyville, Monroe, New Canaan, New Milford, Newtown, Norwalk, Old Greenwich, Redding, Redding Center, Redding Ridge, Ridgefield, Riverside, Roxbury, Sandy Hook, Shelton, Sherman, Southport, Stamford, Stratford, Trumbull, Washington, Washington Depot, Weston, Westport, Wilton

Make pulling on the lead a thing of the past. This one-of-a-kind harness is easy to use and needs little effort to get your dog walking by your side using it's patented, revolutionary communication system.