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Personal trainer Stephen Montgomery showing his clients how to perform a plank

Get Stronger With Us

Transform your body and mind with us!

Full Body HIIT Class

We all want to get fit, lose some weight, and stay healthy, but seriously, who has the time to sit and plan a different routine for every day of the week? That's why our full-body workout class is here. It’s specifically designed for people like you—busy people who want results but don’t have the hours to spend in the gym.


Our full-body workout class is quick and effective, leaving you feeling like you actually did something. It’s all about quality over quantity, and that doesn’t mean that because you’re packing everything into one class, you’re going to train one area more than another. Don’t stress; our personal trainers know exactly what they’re doing, and they’re here for you every single step of the way.

Class Schedule


5am, 6am & 8am


7am & 8am

Members working out together at CoreOne with a personal trainer

Hear From Our Members

Will you be next?

Member from CoreOne Gym

CoreOne is the best gym in Johannesburg South with great personal trainers, an amazing atmosphere, and clean facilities that are not affected by load shedding. They offer functional fitness tailored to suit your needs, whether you are looking to lose weight, build strength, improve flexibility, or recover from an injury. They have personal trainers available to assist you in small group classes limited to 10 people. Every gym class at CoreOne pushes you to become a better and stronger version of yourself.

Life changing experience. A unique fitness/gym concept, supported by motivating trainers and one on one support. Highly recommend for all types of people looking to achieve more in life, fitness and training. The only gym i have ever committed to and do not regret it for a moment.

Faatimah Ali

The trainers are exceptional! After our sessions, I can literally feel the rush of endorphins. Thank you for holding me accountable, getting maximum results in minimal time at the gym, and making me feel great! I highly recommend this gym to anyone looking to make healthier lifestyle choices - it’s the only gym I have committed to because we have so much fun while working out!

Membership & Fees

We’d love to meet you, show you around our gym, and talk to you about your health and fitness goals. If you're ready, jump straight into your first full body workout class for free and give it a try before you commit.

CoreOne Gym Mulbarton

+2771 743 4269

2 Jordie Road, Panorama Complex,

Mulbarton, Johannesburg South, 2059

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