J Collins Fitness - London

Ralph O.

I would like to explain why you should consider Jack as your personal trainer.

Most personal trainers have specialist knowledge on training methods, nutrition and recovery. Jack has these things; he explains himself with patience and brings you along with him.

The reason I recommend Jack to you is that he has something else, something unique: Jack is wonderfully and infectiously motivating. He lifts you consistently and creates an environment which you want to visit.

For me, the role of the personal trainer is to reduce the friction between you and the hard work needed to suceed. At this, he is the best I know.

Rayner V.

As part of our slimfit group Jack is amazing! Always creating new ways of making us sweat but without the screaming and shouting that you often get with a personal trainer. I also went for a PT session at the gym and he is super enthusiastic and encouraging that you can actually do more than you think you can! I’m often very shy but my confidence increased a lot. Highly recommend Jack as a PT.

Aysha A.

Jack is the best!!! I've been training with him for over 8 months, and I could never go back to training alone (or with any other PT). He's very professional but also extremely friendly and understanding - he always adapts our sessions to meet my needs. I couldn't recommend him highly enough!

William I.

Jack's tireless enthusiasm, professionalism and expertise have made a massive difference to my progress in the gym. He clearly cares deeply about what he does, providing real support and challenge for each of his clients and drawing the best from them. To anyone looking for a top notch personal trainer I can't offer a higher recommendation than JC.

Ellie M.

Jacks classes are amazing and I never thought I would enjoy exercising as I never have! Jack makes you feel very comfortable pushes you so you get the results you want but in a fun way, I was a total beginner to exercise and by the end I felt very confident in going to the classes ! Honestly can’t recommend him enough :))))

Iyad Q.

Jack is an excellent well rounded trainer. He has been very efficient in contributing to my cardio level through progressive MMA circuit training. His positive attitude and flexible approach makes him a favourite to many. Jack is an excellent trainer 👍🏻👍🏻

Alex T.

If motivation, flexibility, and a personal approach is what your looking for in a PT, then Jack is the guy for you! I had lacked motivation to train in recent months but Jack's fun approach has really helped me get back into and enjoy training once again.

Amelia P.

Jack is an incredible trainer. Makes the hard work fun. Always coming up with creative ways of hurting my muscles. He is also so flexible which is incredible with a busy, always changing diary