Welcome !

We realize that you have other choices when it comes to fitness and we'd like to thank you for choosing our business as your place to start or continue your fitness journey. We believe that we have the best training facility in the area with the most attentive and knowledgeable staff, great members, equipment and programs that sets us apart from all other fitness businesses.

Our training center has been in business for over six years now, and we are very proud of the community that we've built with in GSC. We are here to help you succeed. We are here to answer your questions and to make you feel at home.

As a community of like minded people we want you to encourage you be the best you can be!

Jesus Guillen, Founder l Coach

Our Staff.

Former soccer player at club and collegiate levels. with 6 years of experience as a trainer.
In 2025, appointed as the Linwood CA high school soccer coach for the JV team.

Gilberto Flores Co-Owner l Trainer

A USPA certify power lifting. with a lot of years of coaching experience. She also competed at club level all the way to collegiate level. Still competing in national level whether it's a lifting or conditioning comp. she enjoy helping members achieve their fitness goals.

Ale Guillen, Owner l Coach

Ale Guillen

Gilberto Flores

Guillen Strength & Conditioning

Where Strength, Discipline, and Community Come Together

Guillen Strength & Conditioning is more than a gym — it’s a home for people who want to get stronger in every part of their lives. Built on family values, real coaching, and a culture of respect, our training environment pushes you to grow with purpose. Every session is designed to build confidence, capability, and long‑term strength that carries into your daily life.

We train with intention. We coach with heart. And we welcome every person who walks through our doors with the same commitment: to help you become the strongest version of yourself.

What We Stand For

- Strength with purpose — real training that builds power, athleticism, and resilience.

- Community first — a supportive environment where everyone is respected and encouraged.

- Professional coaching — clear instruction, smart programming, and accountability.

- Family values — a culture built on loyalty, gratitude, and legacy.

What You’ll Experience

- Structured strength and conditioning programs for all levels

- A motivating, disciplined atmosphere

- Coaches who care about your progress

- A community that pushes you to show up and give your best

- A place where youth, adults, and families can grow together

At Guillen Strength & Conditioning, you don’t just join a gym — you join a family committed to progress, discipline, and real results.

Since joining Guillen Strength and Conditioning, my energy and confidence have soared—this gym truly changes lives.

Alex B.

A focused athlete lifting weights in the gym surrounded by red, black, and white decor.
A focused athlete lifting weights in the gym surrounded by red, black, and white decor.

★★★★★