Our Personal Training program is helping men and women all across our community thrive.
North Phoenix's Top Personal Training Studio
Transform Your Body at Underground Fitness
Achieve Your Best Fitness At Any Age
Are you ready to reclaim your fitness, build new heights of confidence, and revitalize your health?
Our team at Underground Fitness is here to deliver high-quality personal training, fitness classes, and nutrition coaching to men and women across Phoenix. We have years of experience helping people from Central Corridor to Scottsdale lose weight, build muscle, and become the best they can possibly be. When you train with us, no obstacle is too great, no goal is too big, and no aspiration is too challenging. From our fitness classes to personal training, Underground Fitness is your ultimate resource for becoming strong, healthy, and happy.
We help busy adults feel better, get stronger, lose fat, spend less time at the gym.
Revitalize your health and wellness with a professionally guided nutritional program designed just for you.
Our Fit Over 40 Program can help you enjoy improved strength and mobility across all aspects of your life.
Keep your heart racing and your muscles moving from start to finish with our 63 Day Transformation Bootcamp Classes in Phoenix
GLP-1 medical weight loss uses FDA-approved medications that help regulate appetite, slow digestion, and improve blood sugar control, making it easier to eat less without constant hunger.
Why Choose Underground Fitness?
At Underground Fitness, we meet you where you are. Our services are designed for every fitness level — from beginners to seasoned athletes. Training with us means strength, confidence, and a healthier life. Our holistic approach pairs custom workouts, nutrition coaching, and continuous support so you see results that stick.
What to Expect at Underground Fitness
NO BIG CONTRACTS
Our clients love us. We don't force them to be here!
ACCOUNTABILITY AND TRACKING
What you do outside of our four walls matters. We make sure you do what is necessary to achieve your goal- even when you don't want to!
LIFESTYLE CHANGE AND RESULTS
You will learn how to not only get results, but also sustain them. We succeed when we help change your entire lifestyle!
Be The Hero of Your Own Fitness Journey
Underground Fitness is North Phoenix’s trusted destination for personal training, fitness coaching, and nutrition guidance tailored to your unique goals. Whether you want to lose weight, build muscle, increase strength, or transform your lifestyle, our experienced team delivers real results that last.
Get expert-crafted personal training tailored to your body, goals, and lifestyle. Our trainers help you safely progress with workouts that keep you motivated and accountable.
Nutrition is key to success — that’s why we include individualized nutrition coaching with personal training. Learn sustainable habits that fuel fat loss, muscle gain, and long-term health.
Designed for adults 40+, this program improves mobility, strength, and energy — helping you stay active and healthy at any age.
Looking for a structured challenge? Our 63-Day Transformation Bootcamp combines dynamic fitness and coaching to help you lose weight, gain muscle, and reshape your body.
Success Stories
Find Out Why Members Love Underground Fitness
After training with Ron at Underground Fitness for the past few months, I can genuinely say I can’t recommend it enough. His training style is spot on: he demonstrates every exercise with clear explanations on form and why it matters, which has helped me lift heavier and helps get the most out of each workout. Workouts are never boring; Ron keeps things creative and adapts to my energy levels or any limitations I have that day. Plus, he’s always there with extra tips, like stretches for sore muscles or nutrition advice to complement the sessions.
My trainer Ron at Underground Fitness is fantastic. I am new to working out, and I get a ton of great feedback from him on what to do and how I should be doing it. The gym is amazingly clean and organized. I get a great workout each visit.
I have enjoyed various forms of fitness my whole life; sports, running, yoga etc. Now in my 50s I decided I needed to get strong, but I didnt want to try it on my own. Underground Fitness was/is exactly what I wanted. Close to home, affordable, and personal. My trainer Roxanne is knowledgeable and adept and I felt comfortable day 1. The gym itself is spacious and comfortable, the equipment is high quality, yet not intimidating. Ron, the owner met with me initially to see if Underground Fitness was a good fit for me, he has a great sense of humor, and obviously takes pride in his business, both factors that left a great impression. He understood what I was looking for and my budget. As someone not especially comfortable in gym settings, I have enjoyed every session at Underground Fitness, and look forward to continuing the pursuit of my goals.
