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IronClad Martial Arts Center and Power-Up Fitness

5 ★★★★★ 23 Google reviews · Krav Maga school in Wilmington, Massachusetts

Krav Maga school Certified Beginners welcome Kids & teens Women's classes Level 1–5 LE & military Fitness & conditioning

Certified school — reviews and the school's own info point to a recognized Krav Maga certifying organization (think Krav Maga Worldwide, IKMF, KMG or Krav Maga Alliance). If certification matters to you, ask which organization they're certified through and what certification level their instructors hold.

Plan your first class

  • Beginner-friendly all levels welcome, including total beginners — you don't need to be fit or have any experience to start
  • Women's self-defense dedicated women's self-defense classes — a welcoming, no-pressure space to learn practical skills and build real confidence
  • Kids & teens Krav Maga classes for kids and teens — built around confidence, focus, and staying safe
  • Level classes Level 1–5 classes on the schedule — a graded curriculum that builds your skills step by step as you progress
  • LE & military training for law enforcement, military, and security professionals — ask about dedicated or group programs
  • Fitness & conditioning Krav-based fitness and conditioning classes — a high-energy workout that builds real-world strength and stamina
  • Today see hours ·
  • Website & schedule ironcladmartialarts.com — book classes and see the live schedule
  • Phone (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, seminars, and open-gym times — worth a quick check before a special trip.

The classes they run

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

🧒 Kids Krav Maga 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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🎯 Level Classes

“It’s no coincidence that the Iron Clad black belt test became part of their college application essays.”

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🎖️ Law Enforcement & Military

“In addition to the great instructors, there is an amazing group of members that constantly motivate each other whether you are new to the routine or a veteran.”

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🔥 Fitness & Conditioning

“I joined the group fitness program around 2 months ago and absolutely love it.”

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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.”

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Other martial arts here

Krav Maga schools are often multi-discipline. Here's what else students mention training under the same roof at IronClad Martial Arts Center and Power-Up Fitness — mined from their reviews and the school's own info.

🏟️ 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.”

Other schools that also teach mma →

🥋 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.”

Other schools that also teach brazilian jiu-jitsu →

🥊 Muay Thai

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

Other schools that also teach muay thai →

🦵 Kickboxing 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.”

Other schools that also teach kickboxing →

Disciplines are mined from reviews and the school's own info — they show what students have trained, not a formal class guarantee. If you specifically want MMA, Muay Thai, boxing, or firearms defense alongside your Krav Maga, confirm the current schedule with the school.

What students 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.”

🤝 supportive, no-ego gym 8 mentions

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

🔥 great workout & conditioning 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 & awareness 4 mentions

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

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

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

My elementary age son has been taking classes at Iron Clad Martial Arts for 18 months now and it’s the best investment I’ve made! My son is a super active boy and struggles with focus and attention.

★★★★★ — Jules, Apr 2023

Excerpts from public Google reviews. Read all 23 reviews →

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

IronClad Martial Arts Center and Power-Up Fitness comes up as a beginner-friendly school — noted on their own site. If you've never thrown a punch or set foot in a self-defense class, that's exactly who a good beginners program is for. A few things worth knowing before your first week. First, you don't need to be fit or athletic to start — you get in shape by training, not before it, and instructors scale the intensity to you. Second, you won't be thrown into hard sparring — reputable schools build the fundamentals (stance, movement, and core self-defense techniques) over weeks, and controlled pressure-testing eases in gradually so every drill stays safe. Third, all levels really are welcome — ask about a dedicated beginners or Level 1 class time so your first session is alongside others who are also just starting out. Most schools 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 Krav Maga class at IronClad Martial Arts Center and Power-Up Fitness

Nervous about walking into a Krav Maga school for the first time? Almost everyone is, and good instructors 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 a few core techniques with a partner — controlled and at your own pace, not hard sparring. Rest whenever you need to; no one will bat an eye. What to wear: comfortable athletic clothes you can move in — there's no uniform or special gear you need to buy to get started. What to bring: water and a mouthguard if you have one — most schools have everything else you'll need for a first class, so it's worth asking when you call what to bring. Pressure-testing eases in gradually, once your fundamentals are solid — you won't be sparring hard on day one. Arrive 10–15 minutes early to sign in and meet the instructor. It gets easier fast — most people feel far more at home by their third class.

Krav Maga is a contact activity. Ease in, train at your own pace, listen to your instructors, 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 student reviews. Something out of date? Report a correction. Own this gym? Claim your listing — it's free.