About FJ Gym

FJ Gym is a fitness facility located at 5 King Street Mews, London N2 8EQ, UK.

What to Expect

FJ Gym is a place to train in the local area. It is open 6 days a week, with the full timetable shown on this page. Membership options, trial passes, and class schedules are best confirmed directly before your first visit.

Amenities & Equipment

1 amenities available
Toilets
1 not available at this location
Suitable for children

What Our Members Say

4.9
Based on 55 reviews · showing 5
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Powered by GoogleLatest review Nov 2025
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Matthew Vilain
May 2024
Great gym, with a great sense of community and care for it members. Came here after 2 years of not exercising and with lots of pain and have been greatly looked after. Strongest I've ever been! Tony and the Fj coaches ar... Read more

Great gym, with a great sense of community and care for it members. Came here after 2 years of not exercising and with lots of pain and have been greatly looked after. Strongest I've ever been! Tony and the Fj coaches are awesome.

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Alicia Crisp
Oct 2023
I joined FJ at the start of the year as I wanted something more local. I was a bit apprehensive about leaving my previous large chain gym with coaches and classes I enjoyed but it has been amazing. The coaches are really... Read more

I joined FJ at the start of the year as I wanted something more local. I was a bit apprehensive about leaving my previous large chain gym with coaches and classes I enjoyed but it has been amazing. The coaches are really supportive and focus on your individual needs, everyone is really friendly and workouts can be tailored. It's a low pressure environment to achieve whatever you're looking for, I've got more out of going to the gym then I thought possible!

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Ms Helen Newman
Jun 2022
I’ve been training at FJ for just over a year and I have noticed a real improvement in both my strength and general fitness. The coaches are excellent and really focus on form and technique. It is also one of the friendl... Read more

I’ve been training at FJ for just over a year and I have noticed a real improvement in both my strength and general fitness. The coaches are excellent and really focus on form and technique. It is also one of the friendliest and most welcoming gyms I’ve ever been to.

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Helen Daly
Jun 2022
FJ is a really special place. The coaching, programming and energy in the gym is top class. I would highly recommend FJ to anyone who wants to put the work in and improve strength, fitness and mobility and enjoy the pro... Read more

FJ is a really special place. The coaching, programming and energy in the gym is top class. I would highly recommend FJ to anyone who wants to put the work in and improve strength, fitness and mobility and enjoy the process. The classes are small enough to ensure individual attention and the atmosphere is friendly and fun. The coaches have a superb knowledge base and incredible attention to detail. I’m so glad I joined. I’m constantly learning from the coaches & other members. FJ has taken my training to a level I didn’t realise I had in me.

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Shannon Manne
Nov 2025
I came to this gym genuinely excited to improve my fitness, but my experience was completely overshadowed by the unprofessional conduct of one of the trainers. After my session, I overheard the trainer laughing about me... Read more

I came to this gym genuinely excited to improve my fitness, but my experience was completely overshadowed by the unprofessional conduct of one of the trainers. After my session, I overheard the trainer laughing about me with his colleagues. It was clear they were making fun of my workout, and it was humiliating. A gym should be a supportive environment, especially for people who are trying to better themselves. Instead, I was made to feel mocked and unwelcome. If the staff can’t create a respectful atmosphere, it doesn’t matter how good the equipment or facilities are. I will not be returning, and I wouldn’t recommend this gym to anyone who expects professionalism or basic respect.

Location

5 King Street Mews, London N2 8EQ, UK

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Frequently Asked Questions

What are the opening hours at FJ Gym?

Monday: 06:00 to 21:00. Tuesday: 06:00 to 21:00. Wednesday: 06:00 to 21:00. Thursday: 06:00 to 21:00. Friday: 06:00 to 21:00. Saturday: 06:00 to 21:00. It is closed on Sunday. Hours come from the gym's Google listing and can change on public holidays.

How is FJ Gym rated?

FJ Gym holds 4.9 out of 5 across 55 Google reviews. Read a few of them rather than the average alone, since a single score hides whether people are praising the equipment or the staff.

What facilities does FJ Gym have?

FJ Gym lists toilets. Facility lists come from the gym's own listing, so confirm anything you are joining specifically for.

Where is FJ Gym?

FJ Gym is at 5 King Street Mews, London N2 8EQ, UK. The map on this page opens directions in your own maps app.

How do I contact FJ Gym?

You can reach FJ Gym by phone on +44 7921 970783 and through its own website, linked at the top of this page. Membership prices change often and are rarely published in full, so asking directly beats trusting any figure you find elsewhere.