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IronClad Martial Arts Center and Power-Up Fitness

5 ★★★★★ 23 Google reviews · Kickboxing gym in Wilmington, Massachusetts

Beginners welcome Kids & teens Cardio kickboxing Women's classes

Plan your first class

  • Beginner-friendly all fitness levels welcome, including total beginners — no experience needed, and you get in shape by training, not before
  • Cardio kickboxing classes high-energy cardio kickboxing on the bags and pads — a fun, sweaty workout built for fitness and weight loss, at your own pace
  • Kids & teen classes kids and teen kickboxing classes — built around confidence, focus, and fun
  • Women's classes dedicated women's kickboxing classes — a welcoming space to start out and train
  • Today see hours ·
  • Website & schedule ironcladmartialarts.com — book classes and see the live schedule
  • Phone +1 978-447-1225

Hours

Monday 6–11 am, 2–9 pm
Tuesday 7–11 am, 2–9 pm
Wednesday 6–11 am, 2–9 pm
Thursday 7–11 am, 2–9 pm
Friday 6–11 am
Saturday 8–11 am
Sunday 9–10:30 am

Hours shift for holidays and class-schedule changes — worth a quick check before a special trip.

The classes they run

Kickboxing classes on the schedule at IronClad Martial Arts Center and Power-Up Fitness, confirmed in members' own reviews and the gym's own info — not guessed from the sign out front.

🧒 Kids Kickboxing 4 mentions

“It's one of the best place to learn self defense and get fitness training for any age from kids to adults.”

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🌱 Beginners 3 mentions

“Kru John does an incredible job at explaining the move set and demonstrating so that even beginners like myself are able to understand and execute it thoroughly.”

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🦵 Muay Thai 11 mentions

“Kru John Sir and all the teachers are one of the best teachers who not only just teaches but also also help you to through each and every step as a personal teacher and coach.”

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Kickboxing Bootcamp

“Killer kickboxing, barre classes, strength and conditioning, self-defense for all ages, jiu-jitsu classes taught by top notch instructors all under one roof.”

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Other martial arts here

Kickboxing gyms are usually multi-discipline. Here's what else members mention training under the same roof at IronClad Martial Arts Center and Power-Up Fitness — mined from their reviews and the gym's own info.

🦵 Muay Thai

“Started my Muay Thai journey here and have been going on for 4 months now.”

Other gyms that also teach muay thai →

🏟️ MMA

“You’ll learn everything from MMA to life skills that will take you to the next level in any aspect of life, thanks to Kru John.”

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🥋 Brazilian Jiu-Jitsu

“Killer kickboxing, barre classes, strength and conditioning, self-defense for all ages, jiu-jitsu classes taught by top notch instructors all under one roof.”

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🛡️ Self-Defense 5 mentions

“Killer kickboxing, barre classes, strength and conditioning, self-defense for all ages, jiu-jitsu classes taught by top notch instructors all under one roof.”

Other gyms that also teach self-defense →

Disciplines are mined from reviews and the gym's own info — they show what members have trained, not a formal class guarantee. If you specifically want muay thai, boxing, or MMA alongside your kickboxing, confirm the current schedule with the gym.

What members say

The things reviewers bring up again and again across 23 Google reviews — in their own words.

🌱 welcoming to beginners 5 mentions

“Kru John does an incredible job at explaining the move set and demonstrating so that even beginners like myself are able to understand and execute it thoroughly.”

🎉 fun, high-energy classes 3 mentions

“Kru John’s uncanny ability to blend high energy and fun classes with honing skills for focus, determination, discipline and respect are incredible.”

💦 killer cardio workout 3 mentions

“Killer kickboxing, barre classes, strength and conditioning, self-defense for all ages, jiu-jitsu classes taught by top notch instructors all under one roof.”

🧠 builds confidence & relieves stress 4 mentions

“Investing in their self-defense and self-esteem was one of the best things I could have done as a parent.”

🤝 friendly, family gym 7 mentions

“All of the classes are beginner friendly with modifications offered, but can be challenging for experts alike.”

From the reviews

Ironclad is more than a gym. It’s a family of a great people who work together to introduce a better lifestyle to their community. The owner, Kru John, helps all the students in any level to be better each session.

★★★★★ — Roya, Jul 2021

Instructors are just awesome at what they do. No words can describe. Go see for yourself!!!!

★★★★★ — Victor, Jun 2016

My two daughters and I have trained with Kru John for many years, and all three of us earned our black belts at Iron Clad. Early on, I often had to push my girls to attend class. Between school and other activities, they would have preferred almost anything else.

★★★★★ — Jay, Dec 2025

Wanting to get back in shape, so I did a trial period for IronClad’s Power Up Kickboxing. No hesitation when committing to the membership… As long as I live within a commutable distance, I will be a member. All of the instructors are fantastic.

★★★★★ — Shy, Aug 2021

Excerpts from public Google reviews. Read all 23 reviews →

New to kickboxing? Start at IronClad Martial Arts Center and Power-Up Fitness

IronClad Martial Arts Center and Power-Up Fitness comes up as a beginner-friendly gym — noted on their own site. If you've never thrown a punch or a kick, that's exactly who a good beginners class is for. A few things worth knowing before your first week. First, you don't need to be fit or coordinated to start — you get in shape by training, not before it, and coaches scale every drill to you. Second, you won't be thrown into hard sparring — reputable gyms build the basics (stance, footwork, and punches and kicks on pads and bags) first, and any contact eases in gradually under a coach's control. Third, all fitness levels really are welcome — ask about a dedicated beginners or fundamentals class time so your first session is alongside others who are also starting out. Most gyms are happy to let you watch or try a class first, so reach out before you commit.

Check beginner classes on their site

Your first kickboxing class at IronClad Martial Arts Center and Power-Up Fitness

Nervous about walking into a kickboxing gym for the first time? Almost everyone is, and good coaches expect beginners to come through the door. Here's what to know. What to expect: a typical first class is a warm-up, then drilling the basics — stance, footwork, and punches and kicks on pads or a heavy bag — not hard sparring. Go at your own pace and rest whenever you need to; no one will bat an eye. What to wear: comfortable athletic clothes you can move and sweat in, and supportive trainers. What to bring: water, and hand wraps and gloves if you have them — many gyms lend loaner gloves for a first class, so it's worth asking when you call. As you keep training you'll add your own gloves and wraps (and shin guards once you start sparring). Sparring is optional and eases in gradually, once your basics are solid. Arrive 10–15 minutes early to sign a waiver and meet the coach. It gets easier fast — most people feel far more at home by their third class.

Kickboxing is a contact sport. Warm up, pace yourself, listen to your coaches, and if you have any injuries or health concerns, mention them before class and check with a doctor if you're unsure.

Where to find IronClad Martial Arts Center and Power-Up Fitness

335 Main St, Wilmington, MA01887

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Listing verified July 2026 from public business records and member reviews. Something out of date? Report a correction. Own this gym? Claim your listing — it's free.