Underground Strength Gym
Personal Training · Marsfield, Sydney

Personal Trainer Epping — Strength Training That Actually Works.

Underground Strength Gym is Marsfield's strength-first personal training gym — a short drive from Epping via Herring Road. If you're looking for a personal trainer in Epping, USG Marsfield is 10 minutes away and specialises in strength-first coaching for busy professionals. Real coaching. Real results. No cardio grind.

5+ Years in Marsfield74 Active Members4.9★ Google Reviews

3 to 8%
of muscle lost per decade after 30
Without strength training.
1 in 3
Australians over 65 fall at least once a year
The leading cause of injury-related death.
38 hrs
calorie burn continues after a strength session
Not just during. After.
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📍 10 minutes from Epping · Free parking · Marsfield NSW

Looking for a Personal Trainer Near Epping?

If you've been searching for a personal trainer in Epping, chances are you're tired of figuring it out alone. USG is based in Marsfield — easily accessible from Epping, Eastwood, Carlingford and Dundas. We coach strength properly. Small groups, real coaching, progressive programs that actually build week on week.

Serving Epping, Eastwood, Carlingford, North Epping, Dundas and surrounding suburbs.

Personal training at USG Group training community USG coaching system
01 · The Problem

One Hour.
Then You're On Your Own.

Most PTs clock in, count your reps, and clock out. The other 23 hours, the food, the missed sessions, the days motivation disappears, that's on you. That's not coaching. That's babysitting.

02 · The Difference

PT That Doesn't Stop
When the Session Does.

Every USG membership includes unlimited group training. On PT days and every other day. Coached. Structured. With a community around you. The gap between sessions is where most people fall off. We close that gap.

03 · The System

Choose Your Level.
Keep Everything Else.

One session or three, you decide. Every membership includes group coaching, nutrition guidance, and accountability built in. Not a gym membership. A system.

3 to 8%
of muscle lost per decade after 30
Without strength training.
Muscle loss does not just change how you look.
It changes whether you can get up off the floor at 75.
1 in 3
Australians over 65 fall at least once a year
Falls are the leading cause of injury-related death in older Australians. The cause is muscle loss.
The strongest people in their 70s started training in their 40s.
Cardio burns it during the session. Strength burns it for 38 hours after.

Same time investment. The results are not even close.

Calories burned after your session ends

Cardio 80 cal burned after the session
Strength training 420 cal burned in the 38hrs after

Same 45 minute session.

Body fat reduction over 12 weeks

Cardio only 1.1% body fat lost
Strength training 2.7% body fat lost

Same weekly time commitment.

Fat lost over 12 weeks

Cardio only
1.1%
Strength
2.7%

Same weekly time commitment.

The Community

Straight from our members.

Skye · 1 Year
Luke · 1 Year
May-Lai · 3 Years
Ben · 5 Months
The Results

Real members. Real results.

Luke before and after
Platinum PT
Luke Lost 28kg
Age 30
Borderline diabetes. Fatty liver. A gut that kept growing. Kept saying he'd start tomorrow.
I kept saying I'll do it tomorrow. Then tomorrow became a health scare.
1 year 5 months at USG
Paul before and after
Platinum PT
Paul Lost 16kg
Age 60
80kg on his wedding day. Then life happened. A kilo here, a kilo there, until he stopped recognising himself in photos.
I didn't notice it happening. Then I saw a photo and thought, who is that?
1 year 9 months at USG
Vicki before and after
Total Transformation
Vicki Lost 25kg
Age 60
Got puffed walking upstairs. Watched her daughter get married and knew something had to change.
That was my last spark of motivation. I wasn't going to waste it.
1 year 6 months at USG
Marlen before and after
Hybrid PT
Marlen Lost 8kg
Age 32
Post-pregnancy weight that wouldn't shift. Zero weight training experience. Didn't know where to start.
I had no idea what I was doing. That's exactly why USG worked for me.
1 year 4 months at USG
Most flexible

Hybrid PT + Group

1 x PT session per week

  • Unlimited group training
  • Nutrition coaching
  • Regular progress reviews

Professionals who want personalised coaching alongside structured group training.

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Most popular

Platinum PT

2 x PT sessions per week

  • Unlimited group training
  • Nutrition coaching
  • Regular progress reviews

The best balance of direct coaching and group accountability.

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Maximum support

Total Transformation

3 x PT sessions per week

  • Unlimited group training
  • Nutrition coaching
  • Regular progress reviews
  • Priority scheduling

Maximum coach access and accountability. Limited spots available.

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Not sure which is right for you?
Book a free call and we'll help you decide.

Book Your Free Call
Book Your Free Call

You've read enough.
Now take the first step.

15 minutes. No sales pitch. No pressure. Just an honest conversation about where you are, what hasn't worked, and whether USG personal training is the right fit for you.

You'll walk away with clarity, whether you join us or not.

  • Tell us about your training history and what hasn't worked before
  • Get clear on exactly what personal training at USG looks like for someone like you
  • Walk away with a plan, whether you join us or not

Book Your Free
15-Minute Call

No pressure. Just an honest conversation about your goals.

We'll never spam you. Your details stay with us.