Personal Training, Muay Thai & Boxing in Hertfordshire

Who we serve

Wherever you're
starting from,
you belong here.

No minimum fitness level. No ego. CAIRO actively supports people with disabilities, injuries, and specific health needs. If we reach the limits of what we can help with, we refer you to the right professional - even if that means someone else.

Start the Conversation

Complete beginners

Never trained before? Good. Sessions start exactly where you are. No experience needed, no judgement.

People with disabilities or injuries

CAIRO actively welcomes and adapts for clients with specific health needs. Elite care is not reserved for elite athletes.

Juniors (under 13)

Age-appropriate coaching builds coordination, confidence, and a healthy relationship with exercise.

Experienced athletes

Competitive athletes and those preparing to compete receive the same research-led methodology at the right level.

Groups and organisations

Workshops for corporate teams, schools, charities, or private groups - tailored to the group.

Your coaches

Callum

Founder & Head Coach

Callum founded CAIRO after a career as a professional Muay Thai fighter. He didn't set out to open another gym - he set out to change the way coaching is done.

Patient, methodical, and genuinely invested in every client. Whether you've never trained a day in your life or you're preparing to compete - Callum meets you where you are, and builds from there.

WKO British Champion IKF British Champion Former UK No.9

Train with Callum

More coaches coming soon.

Client Reviews

What people say.

"Callum is a great coach. He was the first person to teach me properly - forever grateful for his patience and knowledge."

Lee K.

"Absolutely top tier coaching. Callum is one of the best coaches I've ever had - the level of attention and expertise is second to none."

George R.

"Callum has been training my son and he has really come out of himself. The confidence and discipline he's gained have been remarkable."

Babs F.

"I've really enjoyed my training sessions with Callum. I always leave feeling motivated and like I've actually pushed myself."

Reece

"Callum is one of the most underrated and patient coaches I've worked with. Progress has been consistent - definitely recommend."

Grace C.

"Callum has been a fantastic trainer for my son. His confidence and self-esteem have soared since they started working together."

Josh K.

"Callum's professional approach and ability to adapt to my son's needs was consistent each week. I was amazed to see how much he progressed in such a short time. Highly recommend."

Andy C.

"Callum is so good with my daughter - helping her so much mentally and physically. You can see the confidence coming out. So knowledgeable, nothing is too much for him. Truly one in a million."

Susan M.

"Callum is a terrific coach who takes a lot of joy in seeing and helping people achieve their goals no matter how small, and always goes above and beyond."

Mitchell J.

"Really nice and helpful - my son really enjoys every training session. Thank you CAIRO for coaching him."

Sandy P.

"Callum is an amazing coach who is super knowledgeable and every session is well structured and thought out! One of the best."

Rishi K.

CAIRO is
different.

Research-led methodology. Every programme is evidence-based, built around your physiology and goals - not a template.

Holistic development. Physical training, mental health awareness, nutrition, and community - because strength is more than lifting.

No minimum fitness level. Complete beginners, people with disabilities or injuries, and competitive athletes all train with CAIRO.

Our commitment
to you.

You will not leave dependent. Independence is the goal. We build the tools, knowledge, and habits you carry with you.

Elite-level care for everyone. The same quality, attention, and expertise - whether you've never trained or you're preparing to compete.

We give back. For every 10 sessions booked, CAIRO donates a session to charities supporting children with special needs and vulnerable communities.

Common Questions

Everything
you need
to know.

Can't find what you're looking for? Just ask.

Ask a Question

Absolutely. Most clients start with no prior experience. Sessions begin exactly where you are - there is no expectation, no judgement, and no pressure. Our coaches meet you where you are and build from there.

Use the booking system on our contact page, send a message, or call directly. All new clients start with a brief conversation - we want to understand your goals before your first session so we can make it count.

Yes. CAIRO actively supports people with disabilities, injuries, and specific health conditions. If we reach the limits of what we can help with, we refer you to the right professional - even if that means someone else.

1-to-1 adult sessions: £60/hour or £30 for 30 minutes. Juniors (under 13): £40/hour or £25 for 30 minutes. Pair sessions, group sessions, and home training also available - see the full pricing page for all rates and block booking discounts.

Partner gyms in Kings Langley and Hoddesdon, with St Albans coming soon. Home training is also available across Hertfordshire and Bedfordshire - we come to you.

Just comfortable training clothes and clean footwear. CAIRO provides all specialist equipment - gloves, pads, everything. You don't need to buy anything before your first session.

Yes. For every 10 sessions or workshop booked, CAIRO donates one session to partner charities supporting children with special needs, individuals with disabilities, and vulnerable communities.

Yes. Junior sessions (under 13) are available for both Boxing and Muay Thai at our Kings Langley and Hoddesdon gyms. Sessions are fully age-appropriate - building confidence, coordination, and discipline safely. No contact until the child is ready.

Not with proper coaching. Beginners never spar or take contact until they are comfortable and ready. CAIRO training is pressure-free and technique-led - the environment is safe and supportive from day one.

Most clients notice meaningful changes in fitness and confidence within 4 to 6 weeks of consistent training. Physical changes follow. The timeline depends on your starting point, frequency, and goals - we are honest about this from the first conversation.

Yes. CAIRO offers home-based training across Hertfordshire and Bedfordshire. Sessions are available at your home, garden, or local outdoor space. A travel surcharge may apply depending on distance from St Albans - confirm when booking.

Boxing uses fists only. Muay Thai is the art of eight limbs - fists, elbows, knees, and shins - and includes clinch work. Both are excellent for fitness, discipline, and self-defence. Not sure which suits you? Just ask.

For most clients, 1 to 2 sessions per week produces consistent, sustainable progress. More is not always better - recovery matters. We tailor recommendations to your goals, schedule, and life outside training.

The healthindustry isloud.

The health
industry is
loud.