Kids Kickboxing &
Children's Martial Arts
Help your child build confidence, discipline, respect and fitness in a safe, positive environment. Our children's kickboxing and martial arts classes in Northwood welcome every child — from their very first session.
A Better Version of Your Child
Kickboxing with Diamond gives your child so much more than physical skill. These are the qualities they'll build every time they step on the mat — at the academy, at school and at home.
Confidence
Every new technique mastered is a real win. We help your child believe in themselves on the mat and beyond — the quiet confidence that comes from genuine achievement.
Discipline
Structured sessions teach your child to follow instruction, set goals and stay focused — habits that carry straight into the classroom and home.
Fitness
Kickboxing is a brilliant full-body workout. Your child builds strength, stamina and healthy habits while having fun and burning off energy.
Focus
Training demands concentration. We help your child tune out distractions and focus their mind on the task in front of them.
Self-Belief
Through progression and praise, your child learns to back themselves — on the mats, at school and in life. They leave each class a little more sure of who they are.
Friendships
Training alongside the same faces week after week, your child builds real friendships and learns to be a great training partner — sharing, encouraging and supporting others.
A Positive Environment
Our classes are warm, welcoming and built on encouragement. Your child trains in a space where effort is celebrated, mistakes are part of learning, and every child is seen.
Your child doesn't need to be fit, sporty or confident to start.
We meet every child exactly where they are. Whether they're full of energy or a little shy, sporty or brand new to it all, our coaches help them grow at their own pace — one class at a time. That's exactly what your child's free trial is for.
Book Your Child's Free TrialOur Kids Programmes
Little Leaders
Fun, playful sessions that build coordination, listening skills and confidence from the very first class. The perfect introduction to martial arts.
Kids Kickboxing
Real kickboxing technique taught in a safe, encouraging environment. Children learn discipline, self-defence and skill while progressing through our grading system.
Why Parents Choose Diamond Kickboxing
We know that handing your child over to a new coach is a big decision. Here's what makes Diamond the choice of so many families across Northwood and the surrounding areas.
Instructor Experience
Every class is led by Head Coach Sam Welch — a 5th Degree Black Belt with 22 years of competitive experience across kickboxing, Brazilian Jiu Jitsu and MMA, a National, European and London Open BJJ Champion with 15 years in BJJ and 10 years in MMA — supported by trained, DBS-checked assistant instructors. Your child learns from coaches who've competed at the very highest level.
A Safe Environment
Safety is non-negotiable. All coaches are DBS-checked, first-aid trained and hold up-to-date safeguarding qualifications. Classes are structured, supervised and designed to challenge without risking injury.
Structured Grading System
Clear progression keeps children motivated. Our structured grading system gives every student milestones to aim for, with regular opportunities to earn new belts and track their development.
Positive Coaching
We coach the child, not just the technique. Every session is built on encouragement, praise and patience — helping children grow in confidence and character as well as skill.
Kids Kickboxing & Children's Martial Arts in Northwood
Looking for kids kickboxing in Northwood or children's martial arts classes your child will actually look forward to? Diamond Kickboxing runs dedicated kids and children's programmes at Holy Trinity Church of England Primary School in Northwood, led by Head Coach Sam Welch — a 5th Degree Black Belt with 22 years of competitive experience across kickboxing, Brazilian Jiu Jitsu and MMA, a National, European and London Open BJJ Champion with 15 years in BJJ and 10 years in MMA.
Our children's martial arts classes are designed for ages 3–6 (Little Leaders) and 7–13 (Kids Kickboxing). Whether your child is full of energy and needs a positive outlet, or they're a little shy and need a confidence boost, our structured sessions meet them exactly where they are. They'll develop fitness, coordination, focus and self-defence skills — all while having fun and making new friends.
Every coach is DBS-checked, first-aid trained and holds up-to-date safeguarding qualifications, so you can relax knowing your child is in safe hands. With a clear grading system to keep children motivated and positive coaching that builds character as well as skill, it's easy to see why families across Northwood, Northwood Hills, Pinner, Eastcote, Ruislip, Ickenham, Hatch End, Rickmansworth and Watford choose Diamond Kickboxing for kids martial arts. Book your child's free trial today.
Give Your Child the Diamond Start
Their first trial class is completely free. No commitment, no pressure.
Plan Your Child's Next Step
Train with us at either venue, find a class time, or book your child's free trial in minutes.
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