ONLINE COACHING • FAT LOSS • MUSCLE • PREP
Whether your goal is fat loss, muscle building, competition prep or simply becoming healthier and more confident, our online fitness coaching supports clients across the UK — with personal training also available at Mayhem Gym in Boston, Lincolnshire.
Client Transformations
The Chenery Fitness Difference
Coaching that fits around your life, not a rigid plan you’re expected to force into it. We’ll help you train with purpose, eat with confidence and stay accountable when real life gets busy.
Personalised Nutrition
We’ll build your nutrition around your goals, routine and food preferences, so it feels clear, flexible and something you can actually stick to.
Tailored Training
Your training is written for your experience, schedule and priorities, with enough structure to progress and enough flexibility to keep you consistent.
Unlimited Coach Support
You’ll have direct coach support when you need clarity, reassurance or a push—so you’re never left second-guessing the plan.
Weekly Check-ins
Each week, we review what’s working, what needs adjusting and what you should focus on next, so progress never feels random.
Education Library
We teach the why behind your plan, so you build the confidence to keep your results long after the diet phase is finished.
Monthly Mindset Coaching
Mindset support helps you handle the habits, confidence and consistency challenges that most plans never address.
Exclusive Community
You’ll join a private client community where people share wins, ask questions and support each other through the harder weeks too.
Results Assurance
If you show up and follow the process, we’ll keep reviewing, refining and coaching you toward visible, measurable progress.
True Transformation
We’re here for lasting change, not short-term fixes. That’s why we focus on the habits, structure and support that make results sustainable.
People often join Chenery Fitness because they want results. They stay because they feel supported, understood and part of something bigger than a plan.
CLIENT TRANSFORMATIONS
Client transformations from online coaching and personal training.
A real look at what can happen when structure, support and honest effort come together.
WHY CHENERY FITNESS?
Practical online coaching that keeps you moving forward.
Meet the Founders
A husband-and-wife coaching team dedicated to helping people transform their physiques, confidence and lives.
Co-Founder | Online Coach | Co-Owner of Mayhem Gym
Thomas is the co-founder of Chenery Fitness and co-owner of Mayhem Gym. After nearly a decade as a teacher, he brought that same patience, structure and care into coaching. He helps clients lose body fat, build muscle, prepare for competition and understand exactly what they’re doing along the way.
Former Teacher
Co-Owner of Mayhem Gym
Men’s Physique Athlete
Online Coaching
Competition Prep
Co-Founder | Online Coach | Personal Trainer | Co-Owner of Mayhem Gym
Sarah is the co-founder of Chenery Fitness and co-owner of Mayhem Gym. As a PCA Bikini Pro and experienced coach, she helps women build confidence, strength and sustainable routines. Alongside online coaching, Sarah also offers one-to-one personal training at Mayhem Gym for clients who want face-to-face support.
PCA Bikini Pro
Co-Owner of Mayhem Gym
Women’s Coaching
1-to-1 Personal Training
Lifestyle Transformations
Choose Your Coaching Experience
No matter where you’re starting, there’s a coaching option designed to help you succeed.
ONLINE COACHING
Online coaching built around your lifestyle, goals and experience. Ideal if you want expert guidance, accountability and a clear plan you can follow wherever you train.
Personalised Nutrition Plan
Tailored Training Programme
Weekly Check-ins
Unlimited Coach Support
Education Library
Exclusive Community
Apply for Online Coaching
PERSONAL TRAINING
Work face-to-face with Sarah at Mayhem Gym through one-to-one sessions focused on technique, confidence and training in a supportive environment.
One-to-One Coaching
Technique & Form
Fat Loss
Muscle Building
Confidence Building
Accountability
Book Personal Training
MAYHEM GYM
Train at the home of Chenery Fitness: a 24/7 gym built for serious sessions, a welcoming atmosphere and a community that wants to see you progress.
24/7 Access
Premium Equipment
Friendly Community
Group Classes
Home of Boston’s Strongest
Exclusive Member Events
Explore Mayhem Gym
When you join Chenery Fitness, you’re not just getting a programme. You’re getting coaches who know your name, understand your lifestyle and care about the person behind the check-in. Whether you train online, in person with Sarah or at Mayhem Gym, the goal is the same: help you become stronger, healthier and more confident in a way that lasts.
Tell us where you’re starting from, and we’ll help you map out the next step.
See the latest client wins, training updates and behind-the-scenes moments from Chenery Fitness.
Tap through to view the latest posts, stories, transformations and training updates directly on Instagram.
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FAQ
How does online coaching work?
Do I need gym experience?
Can beginners join?
Can I work with Thomas?
Can I work with Sarah?
Can I train at Mayhem Gym?
How often do check-ins happen?
What happens after I apply?