At Planet Fitness, we believe We’re All Strong On This Planet™. No two members are the same – their goals, routines, and reasons for working out are different – but the one thing they all have in common is their strength.
With 2,700+ locations and best-in-class equipment, we provide a welcoming space for everyone to build strength at their own pace in a Judgement Free Zone®. Find yourself at a club near you or download our mobile app for hundreds of ways to get strong.
Many customers praised the staff for being friendly, welcoming, and helpful.
Cleanliness
The gym is consistently noted for its cleanliness, with staff frequently seen cleaning and maintaining the facility.
Equipment Quality
Customers appreciate the variety and condition of the equipment available, although some noted a shortage of specific items.
Atmosphere
The gym is described as having a positive and comfortable atmosphere, making it suitable for all fitness levels.
Customer Service Issues
Some reviews highlighted negative experiences with staff, particularly regarding unwelcoming attitudes and difficulties in membership cancellation.
MM
Mik
1 day ago
1.0
They make it impossible to cancel your membership never go here
DL
Deborah Layton-Root
3 days ago
5.0
Easy to checking, plenty of equipment available. Nice greeter at the desk
CC
Cheyenne Coggins
Oct 21, 2025
1.0
Unfortunately I didn’t get the opportunity to even workout here. I was strongly considering switching from my current gym to this one, however the way I was greeted when I walked in by a man named Jorge just rubbed me the wrong way. What’s happened to gym culture? I see this everywhere anymore and it’s really sad. Be kind to people greet your guests with a smile and a positive attitude… definitely won’t be taking my business there.
CW
Christy W
Oct 19, 2025
5.0
Nice clean location compared to the other one in Longmont. People are always nice and all equipment is on good working order. Good vibe.
RR
Regan
Oct 8, 2025
4.0
This is a really great location. I’ve only been here during the later hours but the girl that usually works overnight is really fantastic. The facility itself is sparkling clean and it’s obvious why it’s like that because you usually see an employee walking around dusting. I’m only rating 4 stars because they play Fox News on the TVs. It’s kind of ridiculous to call yourself an accepting, positivity-forward company and then make people stare at headlines while they workout that might be calling them subhuman garbage or actively calling for discriminatory policies. I’m not even someone affected by that- I just think it’s BS to act like this is a normal news channel that’s acceptable for force people to watch.
What are the operating hours of Planet Fitness in Longmont (South), CO?
Planet Fitness in Longmont (South), CO is open from 5:00 AM to midnight on Mondays, 24 hours Tuesday through Thursday, until 9:00 PM on Fridays, and from 6:00 AM to 8:00 PM on weekends.
What types of memberships and services does Planet Fitness offer?
Planet Fitness offers ClassicAccess membership, mobile app access, classic training, Wi-Fi, tanning, massage chairs, hydro massage, total body enhancement, half-price cooler drinks, fitness training, premium perks, and virtual fitness training.
How can I download the Planet Fitness mobile app?
You can download the Planet Fitness mobile app from the Apple App Store at https://apps.apple.com/us/app/planet-fitness/id399857015 or from the Google Play Store at https://play.google.com/store/apps/details?id=com.planetfitness.
Where is Planet Fitness located in Longmont (South), CO?
Planet Fitness is located at 700 Ken Pratt Blvd, Longmont, CO 80501, USA.
What is the philosophy or mission of Planet Fitness?
Planet Fitness believes in 'We’re All Strong On This Planet®' and provides a welcoming Judgement Free Zone® where everyone can build strength at their own pace with best-in-class equipment.
Are there any nearby restaurants to Planet Fitness where I can eat before or after my workout?
Yes, nearby restaurants include Spice Fusion (Indian and Thai cuisine), Modern Market Eatery (health food and American), Modmarket (gluten-free), and Chile con Quesadilla Longmont (Mexican and seafood).
What nearby fitness or wellness centers are close to Planet Fitness?
Close to Planet Fitness, you can find Club Pilates for Pilates workouts and several beauty and spa salons including Kristen at Studio K10 and Starboard Salon.
Are there convenience stores or retail options near Planet Fitness?
Nearby retail and convenience options include Asia Bazaar convenience store, Big Lots discount store, and Guiry's home and garden/building supply store.
How can nearby Starbucks benefit a Planet Fitness member?
Planet Fitness members can grab a coffee or smoothie at Starbucks nearby, making it a convenient spot for a pre- or post-workout refreshment.
Does Planet Fitness in Longmont offer any special hours on holidays?
Yes, the gym has special hours on holidays such as November 27th (open until noon), December 24th (open until 3 PM), New Year's Eve (open until 6 PM), among others. Check their website for specific holiday hours.