Welcome to J4 Personal Training

Welcome to J4 Personal Training — practical, personalized fitness for real people. No pressure, no ego, just guidance that fits your life and your pace. If you want to feel stronger & move better, you’re in the right spot.

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Seattle/ Capitol Hill personal trainer working with clients of all fitness levels; inclusive training designed for every body.

Want to get back into working out but not sure where to start?

Fitness for Everybody

Whether you’re brand new to fitness or easing back in, your training starts from where you are today. With steady support and clear guidance, you’ll build strength that feels good and sustainable. And if you’re already comfortable in the gym but looking for direction or accountability, we’ll tackle your goals as a team.

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Cap Hill Fitness- Seattle personal training session in a fully equipped Capitol Hill gym with strength and mobility equipment.

Flexible Personal Training Options for Busy Lives

Train Where You Feel Best

You have options. Work with J4 in his training space, or he can meet you at your gym if that’s where you feel most comfortable. It’s flexible, straightforward, and built around what works best for you. Whether you prefer a traditional gym environment with all the bells and whistles or staying in your own routine, you get the same level of support, guidance, and personalized training either way.

Learn more about training locations

You Deserve To Feel Good in Your Body

Training For Life

Train to live your best life- Work with J4- His space or yours- Capitol Hill, South Union Lake, Downtown Seattle Personal Trainer

Fitness isn’t just about today’s workout- it’s about building a body and a life that support you for the long run. Good training supports your life outside the gym — your energy, your mobility, your confidence. It’s about longevity, not perfection. We’ll focus on building strength and movement patterns that carry you through the life you want to live. Together, we’ll get you where you want to be. Book a free 15 minute consultation call and let’s discuss your goals! I sincerely look forward to working together~

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  • “Your only competition is who you were yesterday.”

    - Unknown

  • " A goal without a plan is a wish"

    - Antoine de Saint-Exupéry

  • Joseph is an excellent addition to anyone's fitness regimen. When I first met Joseph, I was struggling with cross-fit routines that left me bruised and disappointed, as they brought no visible improvement to my physique. Frustrated, I sought someone who could personalize my training to suit my needs as a dedicated 40-50-year-old woman experiencing the effects of aging and hormonal changes. Joseph's sessions were truly intentional, and I genuinely enjoyed them. He instilled in me a love for weightlifting that persists to this day. Most importantly, his training transformed my perspective on working out from a chore into a welcome habit. This shift in mindset has been the greatest gift of all.

    Tina Eskridge

  • What goals did you have when we started? When Joseph and I got started, I had been working out in a Crossfit-style, functional fitness routine for a bit. It did a lot for me in terms of overall strength and ability -- especially for key movements like squats and Olympic lifting -- but I also really wanted to get bigger arms, chest, and shoulders! How did training help you progress toward those goals? I worked harder with Joseph than I ever could on my own. Sometimes after an arm day, I'd get on my bike to go home and my arms would be shaking! The results of this supportive atmosphere and hard work were definitely what I was looking for. What did you enjoy most about our sessions? Joseph is smart, friendly, and easy to pass the time with. He creates a space in which I can challenge myself - but he's never yelling at me for one more rep. Would you recommend my coaching to others, and if so, why? Absolutely! I valued our time together, saw results, and learned skills I still put to use.

    Justin Hellier

  • Training with Joseph Jones was one of the most rewarding fitness experiences I’ve had. He helped prepare me for the Seattle Space Needle stair climb—an intense challenge made even tougher by wearing a weight vest. His guidance not only improved my endurance and strength but also taught me the vital importance of proper breathing during workouts. Joseph’s attention to form, motivation, and understanding of the body’s rhythm made every session both challenging and meaningful. I’m grateful for his dedication and highly recommend him to anyone serious about reaching their goals with integrity and purpose.

    Charles Alves