Be Better Everyday

JKConditioning is a private fitness community located in the centre of St. John’s, Newfoundland. We offer personal training for busy people who want to improve their overall health and fitness. Personalized training sessions take place in a group setting under the guidance of our credible and reputable trainers. This means that you get the results of a personal training program with the support and camaraderie of our close-knit fitness community. We design workouts to make you better, not to see how much you can sweat.

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How We Work

Most fitness professionals promise “6 pack abs in 6 weeks,” or a similar message. We don’t do before and afters because there is no “after.” There is only continuous improvement. Also, our group training creates a community. When you join JKC, you are joining something bigger than yourself.

Custom Workouts in a Group Environment

Get the best of both worlds: a custom plan tailored to your needs and current ability along with the support from the JKC fitness community.

We Offer Flexible Scheduling

No locked-in days or times here. Train when’s convenient for you so you don’t have to miss workouts.

Pay As You Go

Enjoy a different fitness experience. Pay for training on your terms with no long-term membership fees. Out of town? No worries. Only pay when you workout.

Client Reviews

Read what clients have to say about their experience at JKC.

cas dyke

I started training at JKC in 2016 because I had built up a number of muscle imbalances from old injuries and activities like rock climbing which had led to some really bad posture and mobility issues. On top of that some friends had convinced me to sign up for a half-ironman. Working with Jon and Thomas was a way to pull my body back into alignment and make sure it wouldn’t fall apart during my race. The staff at JKC pride themselves on continuously advancing their knowledge, which leads to new and inventive way to address problems, old and new. I got my Dad to start training here and recommended JKC to all looking to improve their strength and fitness.

I originally chose JKC to help me rehab following back surgery. JKC was the first gym where a trainer took the time to help me identify my goals and tailor my workouts to achieve them in a safe and doable manner. 🏋🏼 Jon & Thomas are both highly professional and knowledgeable. 👨🏼‍🎓 With their guidance and informative explanations 🗣 they have enabled me to reach my ever evolving goals. At JKC I’m guaranteed fun 😆, interesting 🙃 and diverse workouts, with Jon & Thomas forever supportive and encouraging. 👏🙌👍👊

sumo deadlift

I had always wanted to start lifting weights and get stronger, but didn’t know where to start. I was looking not just for a gym, but for training on proper technique to prevent injury and a program designed for my specific goals. I also wanted a fun and supportive atmosphere to keep me coming back. JKC delivered on all of this and more.

Jon and Thomas have a wealth of knowledge that help their clients get the most out of their time in the gym. Programs are continuously modified to keep the workouts challenging. Even through everyone’s program is unique, you always have the coaches and other clients cheering you on and pushing you to achieve new bests.

I recently visited Newfoundland for one month, and was looking for a good place to train while I was there. Jon and the team at JK conditioning really took the time to assess what I already knew, and set achievable goals for the time that I had with them. The gym was such a great place to push yourself. It had everything you needed, but more importantly it had a well organized, very knowledgeable, and really motivating group of trainers to push you at each workout. Not to mention a really nice group of other members who also motivated me to go that little bit further. I would highly recommend the gym to anyone who has a goal and wants to find a place to help them achieve it.

Featured Coaching Programs

We are now accepting new clients for in-person training and for online run coaching!

Run Coaching

Turn your passion into speed with a balanced, strategic approach to training.

Personal Strength Training

Our goal is to transform your life through the avenue of health and fitness. New to strength training? Been lifting for years but in a rut? We got you covered.

Nutritional Coaching

From fat loss to better digestion to improving your mood and focus, you can do better with your eating habits and see an impact now.

Latest Activity on Social Media

Stay up to date with the goings-on at JKC by following us on social media.