
Strength for life
Build strength, improve balance and posture, and move through life with more confidence.
Personal training · Osteoporosis · Balance

San Diego’s personal training specialists
Expert personal training in San Diego since 1992. Science-driven. Hands-on. Built around you — and the life you want to live.
The Gill’s Fitness difference
No crowded gym. No one-size-fits-all routines. Just a proven, personal approach to exercise — in a private space where you’re known by name.

Personal resistance. Precise movement. Your pace.
Expert hands-on guidance. Resistance that adapts to you. Every movement is designed around your body and your abilities.
Our Advanced Exercise Science method emphasizes the eccentric phase of movement to effectively challenge your muscles.
A focused approach designed around just 2–3 hours a week. Make meaningful progress without making the gym your second home.
How it works
Your goals, your history, your life. Your program starts with a conversation, not a template.
Our team applies hands-on resistance, adapting each movement to your strength and ability.
A consistent, focused routine helps you move better, feel stronger and keep doing what you love.
Training for your life
From teen athletes to active retirees, every person has a different reason to get stronger. We build the training around yours.

Build strength, improve balance and posture, and move through life with more confidence.
Personal training · Osteoporosis · Balance

Individualized rehabilitation, prehabilitation and exercise therapy for your next chapter.
Rehabilitation · Prehabilitation · Sports therapy

Purpose-built training for your sport, from a stronger golf game to athletic performance.
Golf · Sports-specific training · Core strength
People who care. Expertise that counts.
Founded by Jonathan Gill, our seven-person team brings decades of experience and a shared passion for helping you thrive.
You don’t train with just one trainer. You train with a team — for fresh perspectives, personal attention and flexibility.
Come meet your team
Founder & Program Designer

Trainer & Program Designer

Trainer

Trainer
Also on your team: Tyler Smith, David Misrahi & Dustin Abrams.
Stronger together
Some of our clients have been with us for more than 30 years. These are more than success stories. They’re the reason we do what we do.
Training three hours a week since 1998, Dr. Rumsey made prehabilitation part of his routine. Following triple bypass surgery in 2011, he returned to his workouts in four weeks.
Alex began training to protect his pitching arm at just 14. He went on to earn a scholarship to UC Berkeley and was drafted by the Minnesota Twins. His parents train with us, too.
Living with mild cerebral palsy, Sergey began his training journey at 32. With our hands-on method, he improved his body composition, going from a 34-inch to a 29-inch waist.
Individual client experiences, summarized from their stories. Results and recovery times vary.
Your neighborhood. Your private gym.
A spacious, private gym. A welcoming team. A place to focus on you. We’d love to show you around.
LET’S TALK
(619) 299-1988DROP US A LINE
Training@GillsFitness.com
You bring the goals. We’ll bring the expertise. Let’s start with a conversation.