About us
Built to help
more people.
An ambitious health and fitness brand in Scotland, built around coaching, community and life-changing results.
Who we are
Built to help more
people achieve
real results
Cassells Fitness Ltd is an ambitious health and fitness brand in Scotland, renowned for helping members achieve life-changing results.
With a growing online presence and a positive influence on social media, we pride ourselves on our incredible online coaching programme and our successful gym facility located in the thriving Queenslie Industrial Estate.
We provide a modern and community-focused approach to fitness, offering a Small Group Personal Training service to our monthly subscribers. At Cassells Fitness, our goal is to make our world-class personal coaching services and group training sessions accessible to more people.
We are dedicated to helping hundreds of clients achieve transformative results in their physical and mental health and wellbeing.
Our history
From personal training roots
to a coaching-led community
Where it started
Founded by Stephen Cassells in 2017, Cassells Fitness began as a personal training service operating out of public and private gyms across Glasgow and Lanarkshire.
Online expansion
During the Covid-19 pandemic, we launched our online training service, expanding our reach and providing hundreds of members with remarkable body and life transformations.
First gym facility opens
Stephen, alongside Natalie, opened the first Cassells Fitness Studio, nestled in the heart of the Muirhead community.
Move to Queenslie
Due to the rapid growth of the gym and its members, Cassells Fitness relocated to Queenslie Industrial Estate to support the next stage of growth.
Growing stronger
Now 200+ members strong, our community-led gym continues to thrive. We remain dedicated to guiding clients through their health, wellbeing and fitness journeys with a coaching service known for achieving outstanding results.
What we believe
Fitness should feel supportive, personal and built for real life.
At Cassells Fitness, we offer a coaching service renowned for achieving outstanding client results.
We are dedicated to guiding clients through their health, wellbeing and fitness journeys, ensuring they reach their goals and maintain a healthy lifestyle.
Join us and become part of a supportive and transformative fitness community.
Need help?
Got questions before
you get started?
Tap the question mark to open our quick FAQ and get the answers people usually ask before joining, booking, or choosing a class.
Which membership is right for me?
The best membership depends on how often you want to train and the level of structure and support you want. If you are unsure, starting with a free taster or trial is usually the easiest way to find the right fit.
Can beginners join Cassells Fitness?
Yes. You do not need to be fit before you start. Sessions can be adjusted to your level and the coaching team will help you build confidence, improve technique and progress safely.
What is the difference between RACK, TURF and WOD?
RACK is your strength foundation. TURF is more conditioning and engine-focused. WOD gives you a more balanced mix of strength, fitness and variety. Each one plays a different role in the overall training system.
Can I try a session before joining?
Yes. A free taster or trial is the best way to experience the coaching, the atmosphere and the training style before committing to a membership.
Do I need to book classes in advance?
In most cases, yes. Booking ahead helps you secure your spot and makes it easier to stay consistent with your training through the week.
What should I bring to my first session?
Just bring comfortable training clothes, suitable trainers and water. The main thing is showing up ready to get started.
Can I combine classes with Open Gym?
Yes. Many members mix coach-led sessions with Open Gym to get both structure and flexibility through the week.
What happens if I do not know where to start?
That is completely normal. Start with a taster, a trial, or speak to the team and they can point you towards the right option based on your goals and experience.
Come and see
it for yourself.
Book a free taster, meet the team, and get a feel for how Cassells actually trains.
Book a free taster