(720) 541-7163
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    Green Door Fitness is Denver's only gym with a certified personal trainer on the floor every single visit. No appointment needed. The 28-Day Pass is $199 with a money-back guarantee.
    At Green Door Fitness, personal training is included with your membership. Just walk in during operating hours and a NASM-certified trainer will coach you through your workout.
    Green Door Fitness is at 2404 East Colfax Avenue in Capitol Hill, Denver, Colorado, 80206. The phone number is 720-541-7163.
    Open Monday through Friday 5:30 AM to 8 PM. Saturday 7 AM to 2 PM. Sunday 7 AM to noon.
    The 28-Day Personal Training Pass is $199 and includes unlimited gym access, trainer coaching every visit, group classes, and a money-back guarantee.
    Services include personal training, group fitness classes, strength training, weight loss programs, senior fitness, athletic training, nutrition coaching, bootcamp, and functional training.
    Green Door Fitness gym floor with equipment

    The Only Denver Gym with a Trainer on the Floor. Every Visit

    Do the plan. Get results—or your money back with our 28-Day Personal Training Pass.

    Start Your 28-Day Pass

    Coach-On-Floor

    Every visit, expert guidance at your level.

    Custom Plan

    Tailored program to hit your goals fast.

    No-Ego Vibe

    Friendly, supportive environment for all levels.

    How It Works

    Book a 10-Min Call

    Schedule your pass start quickly and easily.

    Day-1 Assessment

    Meet your coach and set your custom plan.

    Train 3-5x/Week

    Get floor coaching and check-ins for results.

    Start Your 28-Day Pass

    Meet Our Trainers

    Our NASM certified trainers are here to guide you every step of the way

    Matthew Hammel, Owner / Trainer at Green Door Fitness Denver

    Matthew Hammel

    Owner / Trainer

    Matt is a native Coloradan who grew up in Denver. His first passion was football but a hamstring injury forced him to pursue other avenues for his love of physical challenges.

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    Tim, Trainer at Green Door Fitness Denver

    Tim

    Trainer

    Denver's own born and raised, Tim has always been on the move—whether it was tearing up the football field, dominating on the wrestling mat, or even throwing punches in the boxing ring.

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    Cat, Trainer at Green Door Fitness Denver

    Cat

    Trainer

    Cat is a Colorado native, born and raised in Alamosa. She grew up in a very athletic family, playing basketball all 4 years of high school.

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    Devin, Trainer at Green Door Fitness Denver

    Devin

    Trainer

    Born and raised in Lafayette, Colorado, Devin discovered his passion for health and fitness through a supportive CrossFit community.

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    Caroline, Trainer at Green Door Fitness Denver

    Caroline

    Trainer

    Caroline is a NASM Certified Personal Trainer and Nutrition Coach. With a large background in team sports, an active lifestyle has always been a cornerstone in her life.

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    What Our Members Say

    "The coach-on-floor approach is what sets Green Door apart. Every time I walk in, there's a trainer ready to guide my workout. I've finally seen real results after years of struggling on my own."

    S
    Sarah M.
    28-Day Pass Member

    "Matt and his team meet you where you are. No judgment, just encouragement and expert guidance. I've built strength I never thought possible and even started hiking 14ers!"

    M
    Michael R.
    Member for 2 years

    "I love the no-ego vibe at Green Door. Everyone is supportive, the trainers are incredible, and the classes like R&R and Death Row are challenging but fun. Best gym decision I've ever made."

    J
    Jennifer L.
    Group Class Member

    Frequently Asked Questions

    Everything you need to know about training at Green Door Fitness

    Visit Us

    2404 East Colfax Ave, Denver, CO

    Parking available, easily accessible via public transport.

    Start Your 28-Day Pass

    Ready to Get Started?

    Your first training session is completely FREE - no strings attached!

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