Locally owned and Operated by Veterans


True 24/7 Access for Members!

Staffed Hours

Mon - Thur  8am - 8pm

Friday  8am - 6pm

Saturday  8am - 2pm 

Sunday  9am - 2pm

Memberships start at $9.99 per month!

Special offers only available in the club

Kids Club

Kids Club is here!!! Hours are M-F 8am-11am & 4pm-8pm


1st Month FREE!.  Regular price is $20 a month!

Give us a call or see the front desk for more details.

Contact Us

Powerhouse Gym Thornton

4251 East 104th Ave, Thornton, CO 80233


Free Classes

FUNctional Fitness (Get down and Dirty)! Every Monday @ 6:30pm

Join Anna Monday @ 6:30pm for the ULTIMATE Total Body Training Class. Bring out your inner grunt with tire flips, ropes, and more!

Total Toning Class! Every Wednesday @ 6:30pm

Let Michelle work your total body with this fun and intense workout! Learn ways to tone up and sculpt those ABS!

FUNdamentals of Resistance Training Thursday @ 6:30 pm

Join Natalie! 

Build some confidence and get familiar with resistance weight and body weight training. Learn new and improved movements to add to your workouts! 

About Us

Powerhouse Gym, where results transpire

Locally owned, family feel
24/7/365 access for members
Our staffed hours  for non-members:  Mon-Thur 8am-8pm, Fri 8am-6pm, Sat 8am-2pm, Sun 9am-2pm

Invested in members success
No intimidation, all ability levels
Expert Personal Training
Free classes
Great equipment
Never busy
Comfortable and welcoming

Powerhouse Gym, the strongest name in fitness.


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Training Expertise


Our Personal Trainers are nationally certified and have the education and experience to guide you to peak physical fitness. Whether you’re looking to lose a little or a lot of weight, put on mass or run faster, we can help you accomplish your goals and beyond. We are the leaders in private and semi-private personal training in Thornton.