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    Diamond Bar, CA

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    Planet Fitness

    4.0 (63 reviews)
    Open 7:00 am - 7:00 pm
    Updated 1 week ago

    Services - Planet Fitness

    Personal training

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    Garbage piece of equipment when it comes to inserting your tennis shoes.

    My review doesn't really apply directly to Planet Fitness but to Matrix Equipment often found within its various locations. Their newest seated aerobic equipment has pedals that do not accommodate my size 12 tennis shoes. Granted, there are much larger tennis shoes worn in a gym. I'm going to 'cut through the mustard'. How can a 'company' such as Matrix apparently not do sufficient quality control? Even when the strap is set to its widest position, I cannot insert my tennis shoes far enough to provide comfort in pedaling so, I can't use this equipment. How could anything this basic sneak pass Matrix? Check out my attached photos. I should add that I really like Planet Fitness and have gone to their locations in Puerto Rico, Kentucky, Louisiana, Minnesota and various locations in California. My complaint with many of the gyms is that overhead music is excessively loud. The facilities are clean and most front desk people except those I encountered in Lafayette, Louisiana are friendly and professional. So, in summary, I've been to around 12 different locations, and 10 were very positive. Positive ones includes the location on Philadelphia in Chino, the Diamond Bar location, the location on Vineyard in Ontario, the one in Corona off of El Cerrito, the one on Foothill near Upland, Baseline in Rancho, the one in Covina, the one off Rancho Rd in Pomona and every other place in California, one in Lexington, KY, one in Lake Charles, Louisiana, etc. The facility in Lafayette, Louisiana (4 years ago) had the worse and most rude front desk idiots. They would not speak and most pretended to be busy all of a sudden when I would walk in. They had a young female manager who was courteous but most of the other front desk people were worthless.

    Selfie
    Francine L.

    I'm glad that Planet Fitness has opened up in Diamond Bar, it is in the same plaza as Starbucks, Hmart, and also a few other food restaurants around the area. This place has plenty of parking and also since it is new all the machines are also new. All of the workers here are super friendly and very chill! If you get to know them it makes you also want to come in daily to check up on them as well! It feels like a community here and everyone overall is nice and you also get to stay healthy during the holidays. I've been a member now for 7 months and I honestly love coming here.

    2023.02.08 Updated hours effective Feb 13.2023
    Lis K.

    They stay fresh here. Machines are newer and plenty of parking. Individual screens on cardio vs large monitors. I like the design and use of space here better than most of the other locations I've frequented. I don't normally have to wait to use any of the machines in my rotation and if I do it's very minimal. Thanks for the upkeep!

    High Tech...Rep counters and time keeping machines

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    13 days ago

    I went to work out today. It's hot. I went to front desk and reported warm and they said they could not adjust the temperature.

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    8 months ago

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    2 years ago

    They trick my teenage kid to sign the contract and not letting cancel. Keep charging for year and half now!

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    2 years ago

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    2 years ago

    This gym is just a minute away from my house. The facilities are clean and nice, but it's unfortunate that they close too early at night.

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    2 years ago

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    4 years ago

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    2 years ago

    Awesome staff, empty gym, clean af. Only wish they would turn some of the lights off. It's too bright. Especially when I go in the evening.

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    2 years ago

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    Ask the Community - Planet Fitness

    Is this location permanently changing their weekday hours from 24 hours to 5am-11pm starting feb 13th? this is what i read on a posted notice in the locker room, so just confirming. it's a bummer if that's the case...

    Hey Angela! The official hours of operation for a PF club will be posted via the club's page so please stay tuned on the 13th if any changes were to be implemented: https://www.planetfitness.com/gyms/diamond-bar-ca.… 

    Is there good wi-fi there?

    Yes, the Wifi works normally and pretty stable. The reception here is great too if you are using data.

    View All 3 Questions

    Review Highlights - Planet Fitness

    Interesting that a couple of the cardio machines already broke tho literally a week after being freshly opened.

    Mentioned in 3 reviews

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    Curl Fitness Diamond Bar

    Curl Fitness Diamond Bar

    3.8
    (60 reviews)
    2.5 mi

    I visited Curl Fitness for the first time today, and I have to give a huge shoutout to Gustavo…read more From the moment I walked in, he made me feel welcome. He took the time to show me around the entire gym, answered every question I had professionally, and even gave me a complimentary guest pass even though I'm not from the area. The gym itself is clean, well-equipped, and has an awesome atmosphere. The only reason I didn't sign up for a membership is because there isn't a location that's convenient for where I live. If there were, I'd join without hesitation. Gustavo's professionalism and hospitality made an already great gym experience even better. Highly recommend both Curl Fitness and Gustavo if you get the chance to work with him.

    Curl Fitness was originally a Crunch Fitness, which is why you'll still see some of the old Crunch…read moretrainers working there. ​The Pros: The biggest advantage of this gym is the variety of classes, like dance. Their equipment is also top-notch, especially the free weights--they use some of the best brands in the industry. Because of the high-end equipment, you'll notice that the membership fees are on the higher side. ​The Cons (Hygiene & Maintenance): Despite the nice gear, the facility is extremely dirty and feels like it's never been cleaned. The handles on the treadmills and ellipticals are often sticky, and there is a thick layer of dust underneath the machines. It's gross! If you've ever been to the Planet Fitness in Diamond Bar, you'll realize just how dirty Curl actually is. ​The most shocking thing I've witnessed is the cleaning process. The cleaning lady uses the same brush to scrub the inside of the toilet bowl and then the toilet seat. Seeing her scrub the bowl and then immediately wipe the seat with the same tool is horrifying! To be clear, she works very hard and I'm not blaming her personally--management simply hasn't provided her with the proper tools or training. Additionally, there is a light in the shower area that has been out forever and never gets repaired. ​Atmosphere & Service: Another bizarre thing is that they don't turn on the AC during the winter. It gets incredibly hot inside. Perhaps that's better for the elderly members, but it's uncomfortable for a real workout. Furthermore, the front desk staff is completely indifferent; when you walk in, they treat you like you're invisible. ​Bottom Line: I only kept this membership because my child has an enrichment class nearby, and it's a convenient place to wait. If my kid weren't taking classes in this area, I definitely wouldn't keep this membership.

    Photos
    Curl Fitness Diamond Bar
    Curl Fitness Diamond Bar
    Curl Fitness Diamond Bar

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    JP Fitness

    JP Fitness

    5.0
    (20 reviews)
    1.8 mi

    Well, this review is about 4 years late but some things are better late than ever, right?…read more I first reached out to JP in 2016. At the time, I was going to the gym, following random workouts on social media, and eating to my hearts content. I had very little knowledge regarding training, body composition, and nutrition. After a few months of working with JP, I started to not only gain momentum with my training but also began to see drastic changes to my body. I was so convinced and confident of my progress that I decided to take it to the next level, and compete in NPC as a figure competitor. In April of 2017, I competed in my first NPC show and placed 1st in women's figure. JP's guidance helped me overcome some of my deepest insecurities. In addition to all the things a personal trainer is expected to teach you, weight training, cardio regimen, and nutrition. JP also indirectly helped me with my confidence, mental clarity, advanced methods to training and nutrition, how my body responds to different types of foods, and the list goes on. These photos speak for themselves. The success and results I achieved with the guidance of JP are beyond exceptional. Although these achievements are great, what I cherish the most is the knowledge I gained from working with JP. It is now 4 years later, and still sometimes I can hear his voice in my head during my own training sessions LOL. Thank you, JP. I am forever grateful.

    So...how should I start this? It all started with a group picture I had with my friends. It was a…read morehappy day until I saw the photo that I occupied a lot of space on there. I asked myself, "Self, is that what I want to be?" I decided to find a personal trainer, and I found JP. JP is very different than many other trainers that I talked to who try to say many good things about training and attempt to get you in. The first thing I was told is "It is going to be tough, and it is all about you. Are you sure you want to do this?" I knew I was at the right place the moment I heard this because JP does not sugarcoat the challenges that I will face to get my business but serious about training me and helping me to reach my goal. The journey is challenging but fun. JP is dedicated and knowledgeable. He always tries to push you to a limit while paying great attention to the form and your reaction to make sure you do not get hurt. Trough out the time that I train with him, my body does fill sore but not pain. He also designs the session to train different muscle groups in a different way and different date so the muscles have enough time to recover. Besides training knowledge, he is also a very positive person who always shows his passion for helping others to be better. To me, JP is more than just a trainer but friend. I am glad that I met him and will keep up my journey with him.

    Photos
    Benefits of having a strong back:
1. Posture improvement
2. Injury prevention
3. Balanced muscle development
4. Mobility and flexibility
    Benefits of having a strong back: 1. Posture improvement 2. Injury prevention 3. Balanced muscle development 4. Mobility and flexibility
    The Smith machine lunge is a variation of the lunge and an excellent exercise choice for isolating muscles of the leg.
    The Smith machine lunge is a variation of the lunge and an excellent exercise choice for isolating muscles of the leg.
    The lat pulldown is a fantastic exercise to strengthen the latissimus dorsi muscle, which promotes good postures and spinal stability.

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    The lat pulldown is a fantastic exercise to strengthen the latissimus dorsi muscle, which promotes good postures and spinal stability.
    F45 Training Diamond Bar

    F45 Training Diamond Bar

    4.9
    (55 reviews)
    3.5 mi

    I've really fallen in love with this style of training. It's nice compared to going to a gym for me…read morebecause I don't have to think. I don't have to worry about whether the squat rack is open or if the machine i want is taken. I don't have to think about what body parts to target. I just have to show up, do the exercises with everyone else and just focus on getting better at them. Everyone here is really nice and supportive especially the instructors Sherry and Vicky, and you'll definitely get stronger if you keep going. I typically go once or twice a week, it's all the exercise I realistically get nowadays and yet I've actually gotten noticeably better cardio and strength. If you're on the fence about it I'd say give it a try. The classes are honestly hard but you can take it at your own pace, and it only gets easier. One thing I love is that there's a sense of teamwork even if you're doing your own workouts. It makes me work harder seeing other people try hard. Overall definitely worth it

    After years of ignoring my husband's attempts to get me to exercise, a friend finally forcibly…read moredragged me to a gym. I tried a variety of small Gyms and studios before discovering F45. The first thing I noticed was how friendly both the staff and other exercisers were. The next thing I noticed was that the music was super fun (think 90s-early 2000s hits). Finally, I realized F45 was the best for me because there's so much variety and constant movement, I don't have a chance to get bored! I only have one day per week I can consistently commit to exercise, and the program/equipment is different each time. Shout out to Vickey and Berry, who are very encouraging and energetic. Thank you for motivating me and helping me feel stronger.

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    F45 Training Diamond Bar
    Mark Wahlberg at F45 Training
    Mark Wahlberg at F45 Training
    Mark Wahlberg loves F45

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    Mark Wahlberg loves F45
    Kim's Power Fitness

    Kim's Power Fitness

    5.0
    (12 reviews)
    0.1 mi

    This studio is in a shopping center near H-Mart, but not in the same plaza as H-Mart. Parking is a…read morebit hard, the lot is kind of tight and you're competing with the patients going to the doctor next door. The owner Kim is so friendly. I liked the exercises she does, it's different than the other places I've been to. When I went, she had us use a step, so we were doing step aerobics type of exercises which I haven't done in about 10 years, but we had a full body workout by the end of the session. The studio can probably accommodate about 10 - 12 clients per class. I like that she is constantly keeping an eye on all of us to correct our form while we are exercising. In addition to the power workouts, she also does nutrition and offers Pilates, yoga, and Zumba classes so you can take care of yourself mind, body, and spirit!

    Following up with my previous review, Coach Kim continues to be the most talented and creative…read moretrainer I've ever seen. She knows how to make every class fun, engaging, and full of sweat while ensuring workouts are effective and personalized for every client. Her training programs are designed to push you to your limits while still being safe and enjoyable. She pays close attention to form, helping clients avoid injuries and maximize results. Beyond fitness, she's also a certified life coach who genuinely cares about her clients' overall well-being, making her sessions both physically and mentally rewarding. On top of that, her gym is always well-maintained, organized, and equipped for the best workout experience. If you're looking for a trainer who will challenge and inspire you while making fitness enjoyable, I highly recommend Kim Power Fitness!

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    Kim's Power Fitness
    Stretching after each workout
    Stretching after each workout
    Kim's Power Fitness

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    Iron District

    Iron District

    4.8
    (135 reviews)
    5.2 mi

    First, this is a great facility. It is always clean, well-maintained, well-ventilated, and has…read moreeverything you need to get a good workout. But this is not a gym; it is a training facility where you work with trainers to tackle your physical goals. Next, this is about my trainer, Kevin Abandy. Kevin has been my trainer for exactly 8 weeks now and he is awesome! I made the decision to get a trainer after my birthday to truly invest in myself. You can invest in your own skills and education, but the return is almost always indirect. But with a trainer, specifically Kevin, I gained 8 lbs of muscle mass and lost 8% body fat (approx. 13-lbs of fat) after 8 weeks of training with him. Also, at the start of my training, I had back pain (from past injury to T12) and knee pains (from under the kneecap). Through Kevin's program and coaching, my pain has been reduced to near 0 with full mobility -- like squatting all the way down and up with 200-lbs of weight on my shoulders with no knee pain. I would give a 1-star review to keep it from getting crowded, but it would be hard for me to not tell others about the good that comes out of this place. My mom is 70 and she's training with Kevin too! And the story is the same for her... knee pains - GONE. Back pains - GONE. If you're reading this and decide to get a consultation with Kevin, please let him know you saw Alex's review so he knows his method is making an impact.

    Great facility, clean, well maintained and rarely crowded. Unlike most traditional gyms, Self Made…read moreis a training facility when you work with personal trainers as opposed to memberships. I've been working with Mia for almost 6 months now and have dropped about 5% in body fat and gained 7% in muscle mass. I would have never considered myself "overweight" but knew I needed to lose a few pounds. I've tried the traditional membership gyms but always found that I would lose interest or motivation. When I started inquiring about personal trainers, Mia was very prompt at answering. During our consultation I did a body fat scan and was shocked to find out that I was nearly 25%. We talked and I learned that it was less about the weight and more about body composition and fat/muscle percentages. Due to my work schedule we were able to meet twice a week for an hour a session. Mia adds good variety to our workouts and I definitively know that I push myself more during our sessions that I normally would have if I were doing the workouts by myself. She also places an emphasis on nutrition and offers advice on what to eat and what to stay away from. The last couple of years my diet has gotten progressively worse, and she's been a great help in getting me back on track. I've noticed that I've started making much healthier choices in the foods I eat. still have a ways to go but would highly recommend Mia for helping you get you to your goals!

    Photos
    Iron District
    Iron District
    Iron District

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    Planet Fitness - gyms - Updated July 2026

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