Crossfit Gym in Holliston, MA

Find lasting success in a supportive community

Our experienced coaches and custom programs will help you stay consistent in your fitness journey.

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Start at any fitness level

Whether a gym rat or a beginner, anyone will feel comfortable at our gym.

Every fitness level is welcome

Our staff and members believe in creating a friendly environment for people at all fitness levels.

Like-minded fitness community

Be encouraged by a community of people who care about your health and wellness just as much as their own.

Getting Started Is Easy


Book a No Sweat Intro

We want to hear your fitness goals, assess a good starting point, and even let you try out a class for free!


Take our Beginner's Course

Get guidance tailored to your body and progress consistently. We will guide you every step of the way.


Transform Your Life

Getting fit is hard; staying fit is harder. We're here to ensure you build healthy habits and systems that keep you on the right track.

Everything You Need To Crush Your Fitness Goals

Personal Training

Members Only App

Open Gym

Customized Fitness Plans

Top of the Line Workout Equipment

Weekend Workout Classes

Water Cooler

A community that will keep you going

We know how frustrating it can be to not get the results you want. No worries! We will be here every step of the way.

Firewall Fitness has been around for years helping people reach their fitness goals.

We don’t believe in quick fixes or gimmicks. We care about your long-term success above all else.
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(Select Location)

Conveniently located off Route 16 and the Holliston Rail Trail

120 Jeffrey Ave, Holliston, MA 01746

Working out at the gym isn't easy. But getting there shouldn't be hard. Firewall Fitness is located and easily accessible from all of Holliston.

Trusted and Loved By Hundreds of Holliston, MA Residents

Questions? We have the answers!

Life’s too short to not have optimal health. Get started today!