A Place Where
Everyone Belongs
Diamond Kickboxing was built on a simple but powerful belief — that martial arts has something to offer every single person, regardless of age, background, or ability. We exist to help you become the best version of yourself, one session at a time.
"Martial Arts is a Vehicle
for Self Improvement"
— The Diamond Philosophy
Our Four Pillars
Fitness & Conditioning
Our classes are engineered to push every body — regardless of starting point. From your first session to your hundredth, you will always leave stronger than you arrived.
Self Defence
Real-world confidence built through proven martial arts technique. We equip every student with the tools and awareness to protect themselves and those they love.
Personal Growth
Martial arts is a vehicle for self improvement. The discipline, focus, and resilience you build on the mat follows you into every corner of your life.
Community
A gym is only as strong as its people. We've built a culture of mutual respect, encouragement, and belonging — where every member is valued and every milestone is celebrated.
Classes for All Ages
& Abilities
From tiny tots to seasoned adults — every class is designed to meet you where you are and elevate you to where you want to be. No experience necessary. No judgement. Ever.
Little Leaders
Structured, fun sessions that build coordination, confidence, and respect from the very beginning. We lay the foundation that lasts a lifetime.
Juniors
Challenging technical training in a positive environment. We channel young energy into skill, discipline, and a genuine love of the sport.
Teen & Adult Classes
Whether you've never thrown a punch or you're chasing competition gold — our adult programme meets you exactly where you are and takes you further.
Built on the Right Values
Every class at Diamond is built around an atmosphere of hard work and determination — but also warmth, humour, and genuine community. We train hard, we encourage each other, and we celebrate every win — big and small. This is a place where everyone has a home.
Our Locations
With venues in Northwood and Southall, there's a Diamond Kickboxing class close to you. Explore what's on offer at each location and book your free trial.
Meet the Coaches
Sam Welch
Master Samuel J Welch is the architect behind Diamond Kickboxing. With 22 years of elite competitive experience spanning kickboxing, Brazilian Jiu Jitsu and Mixed Martial Arts — from amateur circuits to international stages, including a dominant performance at the O2 Arena London — every technique he teaches has been forged in real competition. In BJJ, Sam is a National, European and London Open Champion with 15 years on the mats, complemented by 10 years in MMA.
Sam founded Diamond to bring that unrivalled competitive knowledge directly to you. He doesn't teach from textbooks — he teaches from two decades of lived experience, facing the best fighters in the world.
Ready to Find Your Place?
Your first trial class is completely free. No commitment, no pressure.
Test Your Reaction Speed
Play our boxing mini-game and see if you can block the punch in time.
Book Your
Free Trial
Ready to become the best version of yourself? Step through the door and experience what real coaching feels like — we guarantee it'll be the best decision you make today.
Beginner friendly · All ages welcome · Join 130+ students