About Fitz Fitness

Fitz Fitness was founded on a simple principle: training should be personal, purposeful, and proven to work. Since launching over five years ago, we’ve helped hundreds of clients across Charleston gain strength, improve mobility, and unlock their full potential through expert-led, results-driven programming.

We’ve never been about fads. We’re about building real, sustainable success—one session at a time. Now, with the opening of our new location on Johns Island, we’re taking things further. More space. More services. Same commitment to excellence.

MEET OUR FOUNDER, TJ

Built by Experience, Backed by Results

With over 12 years in the industry and a certification from the National Academy of Sports Medicine, founder TJ Fitzmaurice has trained clients in major markets including New York, Los Angeles, and San Francisco before putting down roots in Charleston.

His passion and the experience of every coach at Fitz Fitness shape a culture that values education, integrity, and long-term progress. From strength training and weight loss to rehab support and performance coaching, wherever you’re beginning, we’re here to help you move forward.

MEET DARREN OLIVER

TRAINER

Darren Oliver is a dedicated personal fitness trainer with over 15 years of experience in helping individuals reach their health and wellness goals. A proud U.S. Navy veteran, Darren brings discipline, commitment, and a passion for service into every training session. He is a certified personal trainer currently working toward his Sports Performance Specialist certification, further deepening his expertise in athletic development. Known for his motivational coaching style, Darren thrives on encouraging others and celebrating their progress, no matter how big or small. When he’s not training clients, you’ll likely find him cheering on the Clemson Tigers or giving back to his community as an umpire and coach for the Barrier Islands Little League.

Meet Danielle

TRAINER

With years of experience in both dance and competitive sports, Danielle brings a diverse background in movement, discipline, and performance to her work as a personal trainer. Certified through the National Academy of Sports Medicine (NASM), she has been consistently training for the past three years, building both knowledge and hands-on experience in strength training and fitness development.

Currently, Danielle is expanding her expertise by working toward a Nutrition Certification, which will allow her to provide clients with comprehensive nutrition advice and personalized meal planning to complement their fitness goals. Looking ahead, she is also training with the ambition of stepping on stage to compete in a bodybuilding show, a goal that fuels her passion and commitment both personally and professionally.

Her mission is to inspire, guide, and support clients in unlocking their full potential—helping them build strength, confidence, and long-lasting results.

Always Learning. Always Leading.

TJ stays on the cutting edge of fitness and nutrition, regularly seeking out continuing education, industry research, and new modalities to better serve his clients.

That commitment to growth shows up in everything we do at Fitz Fitness—from how we train, to how we recover, and how we continue to build Charleston’s most results-focused training experience.

Areas of Expertise

Ready to meet your health and fitness goals with a certified personal trainer who brings real results and genuine accountability?

Fitz Fitness is proud to serve the Johns Island, South Carolina, community with personal training sessions that are designed to deliver real, lasting results. Whether you’re looking to build a custom fitness plan, need personalized guidance, or want to train smarter—not harder—we’re here to help. Our dynamic team of expert personal trainers is ready to meet you where you are on your journey and get you where you want to go.

Ready to get started?

Book your free consultation and first session with a trusted personal trainer in Johns Island, SC. We look forward to seeing you!