Strength & Conditioning Gym in Hemel Hempstead

For adults who want more than a gym membership. Coaching, structure and support from day one.

Not sure which membership is right for you?

Fitness Classes

If you need:

  • coached group sessions

  • fitness, strength and conditioning

  • a supportive coach and community

  • structure without overthinking

  • a flexible weekly routine

Small-Group Personal Training

If you need:

  • more individual coaching than a class

  • a structure programme built around your goals

  • help getting stronger and moving better

  • coaching in a small group setting

  • support around confidence, injuries or help starting again

1:1 Personal Training

If you need:

  • the most individual support

  • coaching completely focuse on you

  • help starting from scratch

  • a program around your goals, inujuries or confidence level

  • quieter, more personal route into fitness

Send us as much information as you’d like to share with a complete stranger (you can trust us), we’ll do our best to point you in the right direction.

Still not sure?

What can you expect from a trial session?

*Keep scrolling*

You don’t need to have it all figured out

Most people don’t need another gym membership. They need someone to help them get started, train properly, and keep showing up.

At The Den, you won’t be left alone to guess what to do. We’ll coach you, support you, and help you find the right place to start.

So you’ve booked in to a trial session, what now?

Your trial session is a chance to experience how we coach, see how the gym feels, and work out which training option is the best fit for you.

You won’t be thrown in at the deep end or expected to know what you’re doing. A coach will talk you through the session, help you with the movements, and make sure everything is scaled to suit your current level.

Whether you’re brand new, getting back into training, or already active but looking for more structure, the aim is the same: to help you feel comfortable, supported and clear on your next step.

During your trial, we’ll

  • welcome you in and show you around

  • chat through your goals, experience and any injuries or concerns

  • coach you through the session properly

  • adjust the exercises where needed

  • answer any questions

  • help you decide whether classes or Small Group PT is the right starting point

After the session

We’ll have a quick chat about how it felt and what would suit you best moving forward. There’s no pressure, just honest guidance on the best way to start your training.

Book a no commitment consultation
Or jump straight into a class

Booking your appointment is simple, and our team is ready to provide the attention, care, and expertise you deserve. Let’s get started—pick a time that works for you.

Enquire about Fitness at The Den

Small Group Personal Training is our most structured adult training option, combining individual programming with hands-on coaching in a small group setting.

If you’re interested but not ready to book a consultation yet, complete the form below and we’ll be in touch to answer questions and explain how it works.

  • “The small PT class is the most enjoyable way I’ve ever trained.”

    — Robert Clark

  • “Friendly, supportive and always tailored to individual needs.”

    — Summer Dowling

  • “Patient coaching and clear explanations make it easy to learn properly.”

    — Jasmine Beeton

  • “Welcoming environment and top-tier coaching.”

    — James Boyd