Guerrilla Fitness CrossFit Montclair

Joining Guerrilla Fitness CrossFit in Montclair has been a transformative experience. The knowledgeable coaches have provided invaluable guidance, helping me improve my fitness level significantly. The structured training programs have pushed me to surpass my own expectations, leading to noticeable progress in my strength and endurance.
Beyond the physical benefits, becoming a member of Guerrilla Fitness CrossFit has also fostered a sense of community. The supportive environment created by both the coaches and fellow members has made me feel welcomed and motivated during every workout session. This camaraderie has not only enhanced my overall experience at the gym but has also made me feel like I am part of a close-knit family.
Without a doubt, joining Guerrilla Fitness CrossFit in Montclair has proven to be one of the best decisions I have made for my health and well-being. The combination of expert coaching, challenging workouts, and a supportive community has created an environment where I continue to thrive and grow both physically and mentally.

Best decision made this year since January! Everyone from the community to the coaches is AMAZING! The people are extremely supportive and kind. No one makes me you feel inadequate; and most importantly, the coaches are knowledgeable and helpful.

My hour at Guerilla is literally the best part of my day! I love love love Guerilla Fitness and all it represents ❤

If you like to challenge yourself and be motivated by others, then this is the place for you. I have been a member for 6+ years, far longer than at any other gym I've ever attended. At traditional gyms, I had a hard time pushing through the motions of doing the same exercises week by week and would eventually stop going due to disinterest. At Guerrilla Fitness, I religiously go five days per week and my day does not feel the same without it. I am capable of doing exercises and lifting weights that I didn't think were possible before. The coaching is second to none, everyone knows one another, and everyone pushes each other to be better by the time you walk out than you were when you walked in. I can't imagine myself at any other gym.

Guerrilla Fitness is what I was missing on my fitness routine. The community is incredibly welcoming as I never experienced before. The coaches are highly knowledgeable, always reinforcing proper body mechanics and encouraging you to achieve your best results. Plus the music is always great. I recommend Guerrilla 10 times out of 10.

Who needs a gym membership? After all, you could run, do sit ups, pushups and squats on your own time, with your favorite music, at home, for free. But we all know it's hard to get (and stay!) motivated, making results hard to come by.

Every Guerrilla Coach is certified, engaged, involved and invested in your health, safety, growth and individual success. They are trained, accredited professionals; they are cool; they are funny; they are smart; they are strong, understanding and helpful; and, they are special. Both Coaches and Members keep you accountable and most importantly, inspired. Many regularly comment that the hour spent at the gym is the happiest part of their day; and, it’s true.

Nobody can make you go to the gym, but come to ours and be truly embraced by a community that shares “core” values and takes pride in being an integral part of a supportive, all-inclusive family. We love getting dirty in our meticulously clean, well-equipped and surprisingly spacious space. Guerrilla is a gym with programming and people like no other. Safety, technique and prudent, incremental gains are all part of the philosophy that keep you healthy, strong, flexible and on a path to improvement. Try it - you'll be greeted with a "Hi!" and leave with a "High 5!"

When you walk into Guerrilla CrossFit, there’s a certain feeling in the room. There is so many different people in different stages of life. Some come to get fit, some come to de stress. For me, I come to prove to myself that no matter if I’m a beginner or more advanced, I can do this. Guerrilla has been helping me with life’s ups and downs, both personal goals and achievements. The coaches and staff are wonderful to work with. They help and advise me on how to approach my goals and conquer my fears. It’s more than just a class, it’s more than just a workout. When I’m here, it’s home, it’s my second family.
Stronger together. Thank you Guerrilla Fitness.

Always the best!
Jessica Perez
Member since 2020

Joining Guerrilla fitness has been life changing: The workouts are challenging but fun which is motivating. The coaches emphasize proper form so Ive grown stronger without injuries. The community is supportive so I feel at home. I’m grateful to be a member.

A place I like to call a second home. The coaches are incredible, friendly, and very knowledgeable. I am someone who enjoys being pushed to my absolute limit, and the coaches can see the potential within every single person. Whether beginner or advanced their constant motivation, support, and attention to athletes forms and performance is what makes this place a one of a kind. The community at Guerilla Fitness is very supportive, welcoming, and just all around great people.I have been at Guerilla for about 2 years now and my growth and performance as an athlete has exceeded anything I could have ever imagined for myself. This is all thanks to the amazing coaches and the incredible community that helps me get better each and everyday. I personally as an athlete, love good healthy competition as it shows me which areas I can improve in and this community never fails to put my strength and athleticism to the test! I love this place and highly recommend trying out CrossFit at Guerilla Fitness no matter what level of fitness you may currently be in, I can guarantee you the coaches and community will help you reach your goals in the most encouraging and enjoyable way possible!

I visited here from Los Angeles and I am really happy I got to do 2 workouts. The coaches, Alex and Nama, were very attentive and encouraging and cared if I had any injuries or problems. The programming was great and I will definitely come back.

I'm so happy I found Guerrilla. I recently moved to the area and was looking for a Crossfit gym with a strong sense of community, and no ego or judgment -- and I found it here. The trainers are all really knowledgeable and work with you to improve form and maximize your ability, and I've found both the trainers and other members really supportive and friendly. All experience levels and body types are welcomed into this small family.

Great box and an awesome gym with solid programming based on my 1 year plus of experience. Real sense of community and suitable for all age groups and fitness levels. Gregg the owner and one of the coaches is an awesome human being all around!

Every coach is both well educated and very helpful. They really care and want to teach you. The gym is well organized, clean, and has good equipment.

As a gym, Guerrilla Fitness serves in an exceptional capacity; it checks all the boxes off: great environment, phenomenal coaching and programming, welcoming to people from ALL walks of life and varying levels of fitness, incredible energy brought day in, and day out. They make it an outstanding experience for everybody. But, to end it there would be a great disservice, as Guerrilla Fitness is so much more than a gym to SO many, including myself. Over 9 years, it has become family to me. The passion, and care, and personal touch that their team puts out on a daily basis to make sure each member receives the very best experience is nothing short of remarkable. No matter where you come from, I encourage you to give them a shot! You will not be sorry!

I so love it here and highly recommend this place! If you’re looking for a supportive environment to be challenged as you work towards your fitness goals, this is it. Although the classes are in a group format, you’ll get one to one coaching to ensure you’re doing the exercises properly. The coaches focus heavily on your form when you first join so that you have all the basics down pat and they really help you get stronger.

Guerrilla Fitness has been my good to me this past year and a half. Not only have I learn so much from my coaches and peers, I learned a lot about myself and capabilities. Spirit week , was one of my favorite community event(s) . It was a great week where all the members got together as a community to do fun activities , such as bowling, running a mile , and even preparing healthy dishes to support a great cause for the gym . Even though it was a competition , Guerrilla Fitness made it into a fun, friendly and family event, and that is exactly what Guerrilla Fitness represent . August will make it my two year anniversary here and I don't see myself going anywhere many years to come.

This gym has become my second home. I didn’t know whether CrossFit was for me, but this gym is very safe and has a very friendly atmosphere. It is super obvious that ALL are welcome which was important to me. No matter where you are in your fitness journey or where you are in life, this is the place for you. Give it a try and see for yourself!

Guerilla Fitness is a great CrossFit Gym! Greg and his team of coaches do a wonderful job of creating a friendly and safe environment for all the members. Each class gives me a great challenge and gets me ready for my day. All the coaches are particular in watching me and other members make sure we complete movements with correct positioning and monitoring our exertion. I feel very fortunate to have found such a great place where I can feel like an athlete and perform well even though I've never felt athletic my whole life. I look forward to my workouts there and watching myself surpass what I thought I could do a few weeks earlier. If you are looking for a Cross Fit Gym, I highly recommend coming here!

Sooooooo I love Guerilla! I've been a member, a year in July. The workouts are great and in an inclusive space. Not the most athletic? No worries! If you are looking to be challenged and want to get stronger, check out Guerilla! There is also a location in Paramus.

This place is life changing! The coaches, the members, the facility!!! Everyone needs to join Guerrilla! It’s worth every single penny! It’s my favorite place to be, my home away from home 💪🏼 The coaches are so supportive and so friendly, they truly want you to be better. The owner Gregg, he’s wonderful! Such a positive community that I’m so proud to be apart of!

This place is more than a gym...it is a family. I have been a part of this gym for just over 2 years and I love it. Every skill level is welcome here. The coaches make every effort to get to know you and encourage you on your fitness journey. There is no need to feel intimidated by the workouts-- you can always scale them down. (Believe me..I know). If you want to meet new friends and family, and challenge yourself with workouts..you should definitely check this place out.