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Underground Fitness at 9714 N 7th St, Phoenix, AZ offers a personalized fitness experience with a focus on individual goals. Trainers such as David, Roxanne, and others provide tailored workouts that ensure effective and safe progress. Members appreciate the knowledgeable and motivating staff who customize plans for various fitness levels and body needs. The gym maintains a welcoming and hygienic environment, making it a preferred choice for many looking to achieve their fitness goals.

The supportive community and commitment to personal training over standard equipment-focused gyms mark Underground Fitness as a standout. It's particularly suitable for those needing accountability and a structured approach to fitness. With flexible scheduling and professional trainers who build trust and confidence, it's clear why many members have found success and loyalty here.

Pros:

  • Highly personalized training plans.
  • Trainers are knowledgeable and motivating.
  • Welcoming and friendly environment.
  • Safe and effective workout routines.
  • Clean and well-maintained facility.
  • Great for all fitness levels.
  • Flexible scheduling to accommodate busy lives.
  • Strong focus on accountability and results.
  • Nutrition counseling available.
  • Community-oriented atmosphere.

Cons:

  • Not open 24/7.
  • Limited space due to smaller gym size.
  • Music selection may not suit everyone's taste.

Location / Contact

Rating Stats

4.9

out of 5.0

1 reviews
5.0
79 reviews
4.0
0 reviews
3.0
0 reviews
2.0
0 reviews
1.0

Reviews (80)

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Would give this place 10 stars if I could! Training at this gym has been a great experience- very educational, motivational, and challenging. The trainers are all amazing: Scott, Ron, Lance, Larone. I have been out of the gym for some time and was nervous to start back again, however, the trainers made it a smooth transition by customizing the diet and workouts to meet my schedule and individual needs so that it was do-able yet challenging and results producing. You can tell the trainers care and love what they do. A lot of their clients have been going for years and consist of all ranges of ages, fitness levels, and abilities which makes it a comfortable and encouraging place to work out. Best gym I have ever been too! I cannot recommend it enough.

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Staff is welcoming and friendly. Joey (trainer) is great! He has always been professional, knowledgable and flexible with my often difficult schedule. My only complaint is UF's vanilla taste in music. I prefer death metal, cursing and mysoginsyic lyrics during my workouts.. Other than that this place is great!

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If you are looking for truly personal training, this is the place to go. This isn't a regular gym where they do personal training on the side - personal training is all they do - and they do it well. My trainer works with me to achieve my personal goals and keeps an eye out for form and flexibility issues. Great environment - clean, friendly, and professional.

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Underground Fitness made me feel right at home from day one! I love the attention given by the personal trainer given in a small group training setting. The gym is super clean and the members are all really friendly too!

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Trainers are all great at underground! They know exactly what they are doing and the best way to do it. The experience is unlike any other. Because of my trainer Ronny I was able to bulk up and achieve the goals I had set for myself.

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I love underground fitness because their trainers really care about you. Your not just a paycheck to them. My trainer Ronald Edwards is one of the best trainers I have ever had. I'm in the best shape of my life. . thanks ron

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I've been a client of Underground Fitness for nearly two years and it's an integral part of my fitness plans. With Ron I've met goals and set more aggressive ones. He's helped me accomplish more than I thought I was ever capable of...and he makes it as fun as it can be (running up a mountain in a 50lb vest will never be fun fun).

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Underground Fitness is amazing! I love this gym, and have been going to the 7th street location for years. I like that the owners and trainers know all the clients by name. The trainers are amazing. I never do the same workout twice, and they are always challenging. Best gym around for sure!

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I started working out at Underground last summer with a groupon. I loved the trainers and the atmosphere so much, when my groupon expired, I signed on. I was assigned to Joey and he is awesome! I need supervision and I need to be held accountable, otherwise I won't work out. Underground is great at that, and I really love how they always make sure you are eating right and give you nutrition tips. At one point, after an event put me financially behind, I tried to quit. The manager, Ron, let me know how great my progress was and worked out something that fit my budget until I could catch back up. It really made me feel valued. I've never worked out consistently this long -- it's been over a year! I work out at least 3 times a week. My coworkers comment on how fit and toned I look, and I'm stronger than I've ever been. At 37, my metabolism isn't what it used to be, so I'm so glad I found Underground Fitness. Also, I have significantly lowered my cholesterol without taking medication and I KNOW it's because of the healthy habits I've gained through my program. Thank you, Underground Fitness!

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This gym is AWESOME! The staff is amazing, especially Ronald! He is the best at what he does and is able to find creative ways to work every part of your body and make it fun (until the next day ha ha). He also has some great advice to give to make eating healthy a lot easier and enjoyable. I highly recommend working with him and the other trainers at Underground!

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Frequently Asked Questions

Except the peak hours, this place remains quite free or moderately crowded.

This business has a rating of 4.9-star.

This business has 80 reviews.

The address is: 9714 N 7th St, Phoenix, AZ 85020, United States .

The contact number is +1 602-910-2550

This service is listed under Personal Trainer .

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