Reviews for Underground Fitness

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  • January 2026

    I can't say enough about Gil. He is incredibly knowledgeable, with a deep understanding of exercise physiology, which makes each session not only effective but enlightening. His attention to form and detail is unmatched – he's always quick to spot even the smallest adjustments that make a big difference.

    I absolutely love the routines he creates, they’re always challenging in the best way and tailored to meet you right where you are in your fitness journey. He brings such supportive, positive energy to every session, and his guidance makes a huge difference. I truly appreciate his coaching style and the way he encourages us to grow while... read full review

  • January 2026

    Gil is a man of his word. I asked to lose 15 pounds in three months while growing muscle and he went above and beyond to make sure I not only reached my goal, but surpassed it. Cannot recommend him enough.

  • December 2025

    Training at Underground Fitness has been wonderful! Gil's depth of knowledge in both strength training and nutrition truly sets him apart. He takes the time to explain the why behind what we’re doing and helps tailor the work to our personal goals. The group classes are the perfect mix of challenging and fun, and they’ve created such a strong sense of community. You can feel everyone supporting each other while still pushing hard. I always leave feeling stronger and more confident. Highly recommend Underground Fitness to anyone looking to level up their fitness!

  • Underground Fitness

    2217 San Ramon Valley Blvd Suite E, San Ramon

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