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Ace Jiu Jitsu LLC

4.7 ★★★★★ 23 Google reviews · BJJ gym in Fountain Valley, California

BJJ gym Affiliated Kids & teens

Affiliated academy — reviews and the gym's own info point to a recognized BJJ lineage or affiliation (think Gracie Barra, 10th Planet, Renzo Gracie, Alliance, Atos or Checkmat). If lineage matters to you, ask which affiliation the academy belongs to and under whom the head instructor earned their black belt.

Plan your first class

  • Kids & youth classes kids and youth BJJ classes — built around discipline, focus, and confidence
  • Today see hours ·
  • Website & schedule acejiujitsu.com — book classes and see the live schedule
  • Phone (714) 334-3878

Hours

Monday 10 AM–8 PM
Tuesday 10 AM–8 PM
Wednesday 10 AM–8 PM
Thursday 10 AM–8 PM
Friday 10 AM–8 PM
Saturday 2–5 PM
Sunday Closed

Hours shift for holidays, seminars, and open-gym times — worth a quick check before a special trip.

The classes they run

BJJ classes on the schedule at Ace Jiu Jitsu LLC, confirmed in members' own reviews and the gym's own info — not guessed from the sign out front.

🧒 Kids BJJ 7 mentions

“I can't recommend Ace highly enough, my wife and I love it and so do our kids!”

All gyms that run kids bjj →

🛡️ Self-Defense

“I am a student at ace and I have learned so much confidence, self defense and offense.”

All gyms that run self-defense →

Other martial arts here

BJJ gyms are usually multi-discipline. Here's what else members mention training under the same roof at Ace Jiu Jitsu LLC — mined from their reviews and the gym's own info.

🥊 Boxing

“They’re not only teach the kids jiu-jitsu & kick boxing but also behavior.”

Other gyms that also teach boxing →

🦵 Kickboxing

“They’re not only teach the kids jiu-jitsu & kick boxing but also behavior.”

Other gyms that also teach kickboxing →

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 MMA, muay thai, or wrestling alongside your BJJ, 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.

🧑‍🏫 expert, high-level coaching 2 mentions

“Great coaching, great competition, and plenty of classes.”

🤝 no-ego, friendly academy 7 mentions

“Our entire family has started training there and I've been blown away at how receptive the instructors and other students are.”

📘 strong technique & fundamentals 2 mentions

“Even more impressive is the attention to detail given to help you learn Jiu Jitsu properly.”

🧠 builds confidence & discipline 2 mentions

“They have gained confidence and physical strength under the direction of caring instruction.”

From the reviews

I have trained here many times during my period in the US. The teacher "Cartmell" is one of the best Ju-Jitsu coaches I have ever met. All his entire team is really friendly and well trained; even if the school is not an huge place, it is a cozy place where you can feel yourself at ease, and the school is very great.

★★★★★ — Gregorio, Jun 2018

I love Ace. I’m not close enough in proximity to be one of their students FT but I stop in once in a while. I belong to one of their affiliated schools. They have a great crew. Master Tim Cartmell shows you technique over strength.

★★★★★ — Joann, Feb 2019

This is my favorite place in SoCal to train. This is their new location in a plaza next to the Fortune Cookie restaurant. The mats are new and the head instructor Tim offers in depth explanations for people interested in learning grappling. I highly recommend checking this place out to train.

★★★★★ — Michael, Jun 2019

Our kids are learning great defense strategies. They have gained confidence and physical strength under the direction of caring instruction. Class atmosphere is warm and friendly with positive encouragement. ACE offers adult classes too, which our extended family rave about.

★★★★★ — Tanya, Feb 2019

Excerpts from public Google reviews. Read all 23 reviews →

Your first BJJ class at Ace Jiu Jitsu LLC

Nervous about walking into a BJJ 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 basic positions and escapes with a partner — not hard sparring. Rest whenever you need to; no one will bat an eye. What to wear: athletic wear you can move in (or a gi if you have one); you'll train barefoot on the mats. What to bring: water and a mouthguard if you have one — many gyms lend a loaner gi for a first class, so it's worth asking when you call. As you keep training you'll add your own gi (or a rashguard and shorts for no-gi) and a mouthguard. Live rolling eases in gradually, once your fundamentals 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.

BJJ is a contact sport. Ease in, tap early and often, 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 Ace Jiu Jitsu LLC

18792 Brookhurst St, Fountain Valley, CA92708

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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.