Fitness & Gyms in Thornton, CO

13 locations found near Thornton

“I joined this gym recently and have been really impressed with the overall experience. The facility is exceptionally clean and well-maintained, and they have a great range of equipment, so I’m rarely waiting around for what I need to use. The atmosphere is very motivating, and I've found the staff to be incredibly welcoming and helpful whenever I have questions. It’s definitely a solid choice if you're looking for a gym that makes you actually want to show up for your workouts.”

5 Superb158 Reviews

“I’ve been to gyms, Orange theory, kickboxing etc., but nothing worked like F45 and kept me as motivated. Tomorrow will be my 100th class and I’m looking forward to more. Thanks for having a great studio, amazing people and a fitness program that sticks!”

5 Superb64 Reviews

“The youth lifting class with coach Julie is AMAZING!! She is so great with the kids! My 10 year old daughter has been lifting now for over a year and loves it… the atmosphere Julie promotes is incredibly body positive!”

5 Superb102 Reviews

“i was never someone who could stick to exercising or doing anything “workout” related. gave mob a try because of a family member who joined and quickly became enamored with the club. the coaches were patient and caring, giving individual attention to ensure the movements were done right but also that my experience was worthwhile! the community was accepting and welcoming from day one! not a single day goes by when i dont get a fist bump or a “good job”! honestly, give mob a shot and you will not regret it! gabs, the main coach and owner, is there to truly help you achieve your goals, and he has assembled a team that helps him support us all. you can tell in every class he teaches that workouts, and those in his classes, are truly his passion!

p.s. you get to call yourself a mobster, how cool is that!?”

4.9 Superb156 Reviews

“I've been loving working out here. It's a fun environment, and the trainers stay engaged and play fun music. They offer multiple different styles of workouts and include challenges during different times of the month that are fun.”

4.7 Superb139 Reviews

“These guys have been absolutely fantastic to deal with and be apart of their community. Everyone is passionate and so positive. It’s awesome to be around. My son has been taking classes here for a few months now. All the coaches have been great however a shoutout to Jason is definitely due. He has been so awesome!! How he teaches and interacts is inspiring. The time that is taken to explain things to help insure that the skill being taught is understood and reinforcement along the way. I can’t recommend these guys enough”

4.7 Superb63 Reviews

“We were looking for a gym closer to home for our son to continue strength, mobility, agility, plyometrics, and speed training between his competitive basketball seasons; thankfully, we found Game Ready Fitness. The classes and instruction, provided by CJ and his coaches, were perfectly geared toward the kids’ abilities and age. The coaches were all very patient and took their time to help the kids when they struggled with correct form; or proper execution of an exercise, and always gave them positive reinforcement. Highly recommend!”

5 Superb29 Reviews

“The community that Mountain Strong has been able to cultivate is wonderful. With many conditioning gyms, it sometimes can feel intimidating but not here. The coaches and owners make you feel part of their family. The members are open, friendly, and the best part, encouraging. The environment here allows your training to feel fun, that's the sweet spot in my opinion. Moving to Colorado and now been here for 2 years, 90% of my friends are from here. The gym always has phenomenal clinics to work on all types of things. From breathing, to climbing knots, to getting your rowing form perfect. They're always getting the community together for fun workouts followed by a relaxing BBQ after. I can write on and one but this place is truly magical. I am so grateful for the connections and life long friends that I have made. This has everything to do with the coaches and owners who have dedicated themselves to creating a place where your health and training can be a happy adventure. Don't get it twisted, they bring it and you will get your pump on but in a fun way.”

4.7 Superb51 Reviews

“Great equipment, great staff, very clean and even someone just starting out will feel welcomed! Jeff the owner couldn’t be more helpful! Awesome place.”

4.1 Good147 Reviews

“The best Chuze I have been to. I was a part of the morning flow and the staff and fellow gym members were absolutely lovely. Clean and tidy. I constantly saw staff around picking up misplaced equipment, filling wipes and taking out trash. They always did their best to welcome me in and out as well. I moved away but I will always love this Chuze”

3.9 Good229 Reviews

“I actually had a great experience at this place. Noah was such a great front desk guy and had great charisma and personality. There's others that I've come across that have been nice or subpar but Noah had a very amazing personality. Very helpful and created great experience!”

3.7 Good87 Reviews

“I have a Planet Fitness near my house, and honestly I like this location much more. Even though the gym at my workplace has newer equipment, this one has a much cooler and more comfortable vibe for working out.

It would be great if it were also open 24 hours on Saturdays and Sundays. Still, it’s definitely worth the trip. I don’t mind driving about 20 minutes or less, depending on the distance between my job and home. When you find a gym you really like, the short drive is totally worth it.

The bathroom cleanliness could improve a little, but overall everything else is great. ?”

3.8 Good265 Reviews

“May 6th 2026 at 5:15 pm I took the STUDIO Flow: Yoga Flow with Shelia. It was intense and I loved it!!! I have bursitis and spinal stenosis. Sheila's class helped me gently work all the muscle groups that my chiropractor recommended I strengthen. I think Sheila's class will help me improve my posture and keep my breathing mindful. I hope this review makes since because I am cooling down from the class before I drive home. My Vasa membership is helping me start my May strong! Thank You!!!! Jodie Buczak”

3.1 Average284 Reviews