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Sentry Jiu-Jitsu

5 ★★★★★ 8 Google reviews · BJJ gym in Gilbertsville, Pennsylvania

BJJ gym Free trial Affiliated Beginners welcome Kids & teens No-gi Competition team

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

  • Free trial or intro class most gyms welcome new members with a free trial or intro class — check their site or give them a call to book your first session
  • Beginner-friendly all levels welcome, including total beginners — you don't need to be fit or have any experience to start
  • Kids & youth classes kids and youth BJJ classes (ages 6–14) — built around discipline, focus, and confidence
  • No-gi no-gi grappling classes — training in a rashguard and shorts, with faster scrambles and a natural bridge to MMA
  • Competition team a competition team for members who want to test themselves at tournaments
  • Today see hours ·
  • Website & schedule sentryjj.com — book classes and see the live schedule
  • Phone (610) 915-8116

Hours

Monday 6–9 PM
Tuesday 6–9 PM
Wednesday 6–9 PM
Thursday 6–9 PM
Friday Closed
Saturday 9:30–11:30 AM
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 Sentry Jiu-Jitsu, confirmed in members' own reviews and the gym's own info — not guessed from the sign out front.

🛡️ Self-Defense 4 mentions

“As a police officer, I can speak from experience and tell you that the self defense techniques I’ve learned here in class WORK in the real world.”

All gyms that run self-defense →

🧒 Kids BJJ

“The children’s classes as well as adult self defense is second to none.”

All gyms that run kids bjj →

Other martial arts here

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

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 8 Google reviews — in their own words.

🤝 no-ego, friendly academy 5 mentions

“If you’re in law enforcement, you owe it to yourself, your family, and the communities you serve to be well trained and capable of handling yourself.”

📘 strong technique & fundamentals 2 mentions

“Coming to Sentry Jiujitsu helped me feel comfortable in my own skin while being able to make new friends and step out of my comfort zone learning new techniques.”

From the reviews

As a police officer, I can speak from experience and tell you that the self defense techniques I’ve learned here in class WORK in the real world. Beginning my martial arts journey here, with this group of people has been one of the most rewarding things I’ve ever done.

★★★★★ — Matt, Jun 2018

Joining the academy was one of the greatest choices I have ever made. I was welcomed into the school with open arms and given the opportunity to learn and grow with everybody.

★★★★★ — Elliott, Jul 2021

I was worried being over 50 and starting Jiu-Jitsu. Everyone at Sentry Jiu-Jitsu is welcoming and the other students work with you to learn the skills and grasp the concepts. Professor Dave breaks down and explains everything from the novice to the experienced.

★★★★★ — Mike, Jul 2021

Sentry BJJ- I can’t say enough about this program. The children’s classes as well as adult self defense is second to none. The skills I have learned make me feel more confident, prepared and positive. The environment is welcoming , goal driven and supportive.

★★★★★ — Thomas, Jul 2026

Excerpts from public Google reviews. Read all 8 reviews →

New to BJJ? Start at Sentry Jiu-Jitsu

Sentry Jiu-Jitsu comes up as a beginner-friendly gym — noted on their own site. If you've never rolled or set foot on a mat, 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 flexible to start — you get in shape by training, not before it, and coaches scale the intensity to you. Second, you won't be thrown into hard rolling — reputable gyms build fundamentals (positions, escapes, and basic submissions) for weeks, live rolling eases in gradually, and tapping early keeps every roll safe. Third, all 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, and leave your ego at the door. 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 BJJ class at Sentry Jiu-Jitsu

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 Sentry Jiu-Jitsu

Royers Plaza, 311 County Line Rd #15b, Gilbertsville, PA19525

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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.