Justin Di Mauro

Sydney Personal Trainer

When I first stepped inside a gym 12 years ago, a lifestyle change began. Before then I was an unhealthy 18-year-old who spent most of my weekends partying and putting on weight by the second.  As I started getting results and transforming my body, I realized I had a passion for health and fitness. So in 2013 I decided to become a Personal Trainer, and as a result I was educated with the tools and knowledge of how to help people achieve their fitness goals. Along with that, I discovered that the gym was not the be all and end all, and that exercise can be just as effective outdoors, or in the comfort of your own home.

Over the years I have helped a range of people with different fitness goals. I particular enjoy working with those who are less experienced in their health and fitness journey’s, as I feel I can provide a stable and long lasting foundation.  Whether it is to lose weight, tone, increase muscle size or improve overall fitness, I will guide you on the journey to a better, happier you!

I look forward to hearing from you all in the future.

  • Cert IV Personal Training
  • Cert iii Fitness Instructor
  • First Aid & CPR
  • Kettlebells Level 1
  • Functional & Strength Training Level 1
  • Online Training Essentials
  • Fitness Australia Registration - Level 2
Kids & Teens Training
Outdoor Specialist
Sport Specific

My Locations

Turramurra, Pymble, Gordon, Killara, Lane Cove, North Ryde, Epping, Eastwood. Ryde, Gladesville

If you do not see your location above, please contact me to discuss.


I’ve been training with Justin for the past year and found him to provide excellent support, education and encouragement. He has helped me with some large strength gains including working around injuries, and over the Covid lockdown period has been extremely reliable continuing his support over virtual training. I wouldn’t hesitate to recommend Justin to anyone seeking a personal trainer.

— Michael H 
Sydney NSW

My Rates

Here at Fitness Inside Out there are no contracts and you can Pay-As-You-Go.

Book A Trial Session and get started today!

Interested in pre-paid packages? Please contact us for a quote.



$99 / 60 min
  • 1 person
  • Pay-As-You-Go
  • 45 min session available


$ 120 / 60 min
  • 2 persons, $60 each
  • Pay-As-You-Go
  • 60 min sessions available


$ 140 / 60 min
  • 3+ person, $47 each
  • Pay-As-You-Go
  • 45 min sessions available

Contact Us

Book a trial session with me today!

Ph: 1300 735 790