Meet Juan: Your Expert Personal Trainer in St Albans & Harpenden
With over 10 years of experience, I provide expert mobile personal training and online coaching across St Albans, Harpenden and Hertfordshire. Whether your goal is to lose weight, build strength, improve mobility, reduce back pain, or regain fitness after injury, I create personalised programmes designed around your lifestyle, ability and location.
Train at home, outdoors or online; with a coach who keeps you motivated, accountable and progressing every week.
I’m a mobile personal trainer based in St Albans, helping clients across Hertfordshire achieve sustainable results through personalised training, nutrition guidance and consistent support.
With over a decade of experience and hundreds of client transformations, I specialise in helping people build strength, lose weight and improve mobility in a way that fits their lifestyle.
About Me: Juan, Founder of JSM Fitness
Hi, I’m Juan, founder of JSM Fitness, a certified personal trainer in St Albans, and former semi‑professional gymnast. After more than a decade in the fitness industry, I’ve helped clients across St Albans, Harpenden, and Hertfordshire transform their health through structured training programmes, tailored nutrition and long term support.
My Approach
I focus on simple, effective training that adapts to your goals, fitness level and schedule. Every session is tailored, every plan is personalised and every client receives clear guidance and accountability.
My coaching style is personalised, science based and results driven.
I focus on:
My goal is simple: help you achieve long term results in a way that fits your lifestyle.
Who I Work With?
I work with clients of all ages and fitness levels, including beginners, busy professionals, parents, older adults and anyone returning to exercise after injury or time away.
Why Train With Me?
Certified Personal Trainer in St Albans: Expertise in weight loss, strength building, back pain, injury recovery and functional fitness.
Registered CIMSPA Member: Committed to professional standards and continuous development.
Mobile & Online Personal Training in St Albans: Train at home, outdoors or online: flexible, convenient and tailored to your schedule.
Expert Guidance & Support: Whether you’re a beginner or advanced, every session is customised to your goals.
Professional, Fun & Results Driven: Sessions are challenging, enjoyable and designed to deliver measurable progress.
Nutrition & Lifestyle Coaching: No “one size fits all” plans; personalised nutrition guidance for sustainable results.
Proven Results: Clients across St Albans & Harpenden have achieved weight loss, strength gains, improved mobility and life changing confidence.
Ready to start your journey
Message me today and let’s build a personalised plan that fits your lifestyle and goals.
Call or WhatsApp: 07590 830263
Email: [email protected]
Enquire Online!
My Background
Before becoming a personal trainer in St Albans, I spent over 10 years working in financial services in London. Fitness has always been my passion and today I dedicate my career to helping people transform their health with personalised programmes designed for long term success.
My Qualifications & Certifications
I believe in continuous learning to provide the best training methods for my clients.
Here are my professional qualifications:
Level 4 Physical Activity and Lifestyle Strategies for Managing Low Back Pain (accredited by Active IQ)
Level 3 Certificate in Personal Training (accredited by Active IQ)
Behaviour Change Specialist (accredited by NASM)
Practical Pilates
(accredited by AFAA)
SAQ Speed Agility & Quickness
(accredited by NASM)
Integrated Balance Training (accredited by NASM)
Pre & Post Natal
(accredited by Active IQ)
Level 3 Diploma in Exercise Referral
Kettlebell Training Instructor
ViPR Instructor
Nutritional Advice for Physical Activity Certificate
Emergency First Aid Certificate
These certifications allow me to support clients with a wide range of goals; from fat loss and strength training to back pain management and injury recovery.
Ready to Start Your Fitness Journey?
Whether you need weight loss guidance, strength training, mobility support or a complete fitness reset, I’m here to help.
Call or WhatsApp: 07590 830263
Email: [email protected]
Enquire Online!
Top mobile fitness coach in St Albans offering home and outdoor training in Harpenden and Hertfordshire.Certified St Albans & Harpenden coach providing personalised weight loss support and tailored nutrition guidance.
Personal Training in St Albans, Harpenden & Hertfordshire
I provide mobile and online personal training across:
St Albans
Harpenden
Redbourn
Wheathampstead
Hatfield
Hemel Hempstead
Kings Langley
Leverstock Green
Markyate
Flamstead
Surrounding Hertfordshire areas
Client Results
I’m proud of the progress my clients achieve.
You can see real transformations, success stories and detailed case studies on my testimonials page.
Professional, Prepared, Adaptable
“Juan is one of the most professional trainers I’ve worked with. He arrives on time, brings all the equipment, and always has a well‑planned session ready. He adapts everything around my injuries and listens to advice from other specialists. His approach is thoughtful, knowledgeable and genuinely supportive.”
⭐ ⭐ ⭐ ⭐ ⭐ on Google
James
St Albans
Motivating, Friendly, Supportive
“Juan is an incredible trainer and a genuinely great person. He tailors every workout to how I’m feeling and always motivates me to push myself. His positive energy, nutrition tips and friendly style make every session enjoyable. Training with him has improved both my fitness and my mindset.”
⭐ ⭐ ⭐ ⭐ ⭐ on Google
Pinky
Welwyn
Official coach for Rennie Grove Biggest Loser
Former Land Coach for the Harpenden Swimming Club
CIMSPA Member
Membership no: 1355248
Ready to start your journey
Message me today and let’s build a personalised plan that fits your lifestyle and goals.
Call or WhatsApp: 07590 830263
Email: [email protected]
Enquire Online!