Great gym and great people! Almost a month into training and I’m loving it! Everyone is so friendly and the coaches are patient and very knowledgeable.

Hammer Jiu Jitsu is a great place! Both my 11 and 7 year old children attended classes! They are kind, friendly and very patient with the children. They even did check ins when the kids missed classes which shows that they care. My children enjoyed their time here and just decided that they wanted to try something else. I would highly recommend Hammer to anyone! They are great!

The best Jiu Jitsu gym for kids and adults in all Connecticut! Coach Wojciech and coach Adam are amazing. The way they welcome you and the vibes in the gym are always positive, all the students there are respectful and you can easily make new friends! The gym is always clean and this is something really important especially for a sport like jiu jitsu. If you leave in Connecticut in Fairfield, I recommend you to go for a trial class, you won’t regret it!

Hammer is a top tier school. The instructors are both welcoming to newcomers and highly skilled in the sport. The community is full of caring and passionate people who are eager to learn. Hammer is the BEST place you will find to jump into the world of BJJ.

Wojciech and his staff are passionate about jiu jitsu and they have created a training atmosphere that is both intense and safe. This is a great place for both the beginner looking to start their jiu jitsu journey and the experienced grappler seeking high level training. Highly recommend Hammer jiu jitsu, see you on the mats.

I've been training for a while, and few times I've seen a place with this quality of training. The instructors are high level Jiu Jitsu practitioners, have the skill required to teach and make it easy for anyone to learn, and most important are very good people. Highly recommend to anyone of any age who wants to learn Brazilian Jiu Jitsu or are looking for a fun way to exercise, get in shape and improve your overall heath.