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Mountainside Fitness

4.0

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Location details

9745 W Happy Valley Rd, Peoria, AZ, 85383, United States

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WeekdayScheduleStatus
Mon4:30 a.m. to 11:00 p.m.
Tue4:30 a.m. to 11:00 p.m.
Wed4:30 a.m. to 11:00 p.m.
Thu4:30 a.m. to 11:00 p.m.
Fri4:30 a.m. to 9:00 p.m.
Sat6:00 a.m. to 9:00 p.m.
Sun6:00 a.m. to 9:00 p.m.
4.0629 reviews
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Susan L.'s profile image
Susan L. 
rating
a year ago

Very friendly , professional, plenty of equipment and clean! Staff is wonderful! And the Smoothie Bar is great! I have stayed away from the gym for a long time , but after a lot of coaxing from my husband I came and I'm loving it . 

Whitney O.'s profile image
Whitney O. 
rating
a year ago

We enjoy Moutainside Fitness. They keep up on their equipment well and frequently have no or upgraded machines and things. I love the classes they offer as well. ​ 

Marshal W.'s profile image
Marshal W. 
rating
a year ago

Ok, you know how people usually only leave feedback when they have a bad experience? I don't think I'm like that, but regardless, I'm not irrational. I appreciate good service and good companies. It doesn't benefit me at all to disparage a good business. With that said, DO NOT JOIN MOUNTAINSIDE. To their credit, I actually preferred MS to my current gym EOS. But I cancelled my membership via phone in February, they admitted to having a record of my call wishing to cancel my membership. That is all factual and undeniable. Sti... read more

Jordynn M.'s profile image
Jordynn M. 
rating
a year ago

Mountainside Cafe is so yummmy! Amanda is the most amazing front desk employee. She is always so warm and welcoming and is very helpful to all! 

Josh C.'s profile image
Josh C. 
rating
a year ago

My favorite place to workout in Arizona! Staff is always the friendliest, and locations strategically convenient! 

Jose L.'s profile image
Jose L. 
rating
a year ago

Great place for families ! Lots of equipment available even at busy times . Kids club is a definite bonus ! 

Peter P.'s profile image
Peter P. 
rating
a year ago

The gym is always clean and the people, at the desk and other gym-goers, are always super nice. I love coming here every morning for my workouts! This gym is a great size and has tons of machines. I'm almost never waiting for my turn on something :) 

Parveen M.'s profile image
Parveen M. 
rating
a year ago

This review is for instructor Jill Cathbertson. She is very good at what she does as instructor. She enjoys her class and understand her students in the classroom. This is for silver sneaker class. Thank you Jill. I really enjoy your class. 

Liz R.'s profile image
Liz R. 
rating
a year ago

Been coming here for the better part of 3 years. Been to a lot of gyms in my day but MSF tops them all. The instructors are awesome, consistently here, and very personable. Hailey, Autumn, Pam, and Stephanie are my personal faves. I also love that you don't typically have to wait for machines... it's rare. There's plenty of machines for all the muscle groups. Huge gym, great staff, clean, good protein shakes too. 

Frequently asked questions about Mountainside Fitness

How is Mountainside Fitness rated?

Mountainside Fitness has a 4 star rating with 629 reviews. 

When is Mountainside Fitness open?

Mountainside Fitness is closed now. It will open at 6:00 a.m.