Meet Stephanie

Powerhouse Director and Owner

Proud owner of Powerhouse Gym who has loved the opportunity to renovate the gym and bring back the atmosphere of 'hardcore will never die" at the House.

And super fortunate to have the most amazing members/visitors in Adelaide, from interstate overseas visit here. 

I've witnessed over the years, this place giving others much more than just physical gains or improvement on their fitness.  Its amazing to watch other personal happiness and their mental health improve dramatically too.  

Super proud to have a great support team beside me too. 

Things I LOVE! - 

Supporting my local community and my local businesses in Prospect. Other things that I love doing in my spare time are exploring SA markets, collecting beautiful plants (hence the plants everywhere in the gym), spending time with friends/family and I love travelling/food and a champagne! THANKS FOR THE SUPPORT EVERYONE! 

Instagram  @mumma_powerhouse

Meet Dimi Kastrappis

Head Powerhouse Gym Trainer 

Adelaide's 2014-2017 SA IFBB and National Mens Physique Champion

He has a solid role in our SA Bodybuilding community.

His raw and genuine advise to those who are wanting to try out this crazy sport is always refreshing. 

He's one hell of a trainer, and his days are always filled with back to back clients. 

If you want to step out of your comfort zone, or learn something more, hit him up for a training session.

To book-

Insta @dimitrikastrappis 

P 0419 550 312

Meet Jordan "BIGGIE" Stephens

Strength/Powerlifting/Strongman Trainer

Meet Biggie!

Tall in stature, Adelaide's strongest man, and quite a character too.

He has exceptional experience in - 

Strength Training,Powerlifting,Weight Lifting,Strong Man,Crossfitting

With his experience, achievements and passion for everything he does, he is an amazing asset to the House and all that will train under the guidance of him. 


To Book:

P 0402 144 676  

Instagram Jordan_biggie

Meet Antoniette Spinello

Powerhouse Trainer & Bootcamp Instructor

Passionate about all things fitness and bodybuilding.

Antoniette has 20years experience as a personal Instructor as well as copious amounts of Bodybuilding Titles won in NABBA and IFBB as a Figure Competitor. 

She is one tough Bootcamp Trainer too.

Give her Saturday Bootcamp session at 8am a try!

To Book:

P 0402 209 674

Instagram @aspinello

Meet Ben  Davis

Powerhouse Trainer & Bootcamp Instructor

Ben has a love for bodybuilding and sport! Passionate about helping others with their strength, fitness and health.He has a background in soccer and basketball, then progressed to more bodybuilding training. 

He's one very tall young man, but has an awesome physique showing to others his hard work in his sessions. Super friendly, and extremely helpful to everyone that reaches out to him. Great to have you join us in 2020 Ben!!

Join his Bootcamp on Monday, Wednesday or Thursday nights at 6pm, or hit him up for a personal training session! 

Please click to book an appointment with Ben



Members  - 5am til 8pm

Visitors  - 7am til 8pm 


8am to 4pm


9am to 4pm


Visitors need to book via our booking app.  


  • Find us on Yelp
  • YouTube Social  Icon
  • Find Us on Twitter
  • Find us on Instagram
  • https://www.facebook.com/PowerhouseF
  • Find us on Google+
  • Find Us on inkedIn



0401 312 350

 Rated as Top 3 Gym in 2020 by Three Best Rated. Thank you for the support.
Rated Top 3 Gyms in Adelaide 2019 by Three Best Rated