Once you've settled into a rhythm of classes, a common question comes up: should you add personal training on top? And if so, does that mean full one-to-one coaching, or is Small Group Personal Training (SGPT) enough? The two get talked about almost interchangeably, but they're genuinely different formats with different price points, different levels of individual attention, and suited to different goals. Here's how to actually decide.

What "Personal Training" Actually Means, and What It Costs in London

One-to-one personal training is exactly what it sounds like: a coach working with a single client, building a programme around their specific goals, movement patterns and schedule. Every rep is watched, every session is adjusted in real time.

It's also the most expensive way to train. Across London, one-to-one sessions typically run from around £50 up to £120 or more per session, depending on the trainer's experience and specialism — with highly specialist or in-demand coaches sometimes charging beyond that. Central and west London locations, including areas like West Hampstead, tend to sit toward the higher end of that range.

That price reflects genuinely undivided attention for the full session. There's no group to share the coach's focus with, and programming can be adjusted week to week around exactly how your body is responding.

What Small Group Personal Training (SGPT) Actually Is

SGPT sits in the middle ground between a full class and one-to-one coaching. Instead of one coach working with one client, a coach works with a small group (somewhere between two and six people) with individualised programming for each person within that shared session. You're not just doing the same circuit as everyone else; the coach is adjusting weights, reps and exercise selection per person, while running the session as a group.

Because the coach's time and attention is split across several clients rather than one, SGPT is significantly cheaper, typically £20 to £40 per person, per session in London, a saving of roughly 40–60% compared with one-to-one training. For a similar structured, coached experience at a fraction of the cost, that difference adds up fast over a year.

Who Genuinely Benefits From One-to-One

One-to-one coaching earns its price tag in specific situations:

• Injury rehabilitation, where a coach needs to closely monitor a specific movement or limitation every session
• Highly specific goals — training for a particular event, sport, or physical target where programming needs to be built entirely around you
• Complete beginners who want maximum hand-holding in the first few weeks before building confidence
• Anyone who simply prefers training alone without the social dynamic of a group

If any of these describe your situation, the extra cost of one-to-one is generally worth it — the individualised attention is doing real work, not just adding polish.

Who Benefits More From SGPT

For most people without a specific rehab need or highly niche goal, SGPT tends to offer the better balance:

• Accountability without the full one-to-one price tag — you're still being individually coached, just alongside others
• A social element that helps consistency — training alongside familiar faces tends to improve long-term adherence more than training entirely alone
• Structured programming, which is the main thing separating SGPT from a standard class — your coach still knows your specific goals and adjusts accordingly
• A natural next step from group classes, since it bridges the gap between fully generic coaching and full one-to-one

Research comparing outcomes between one-to-one and small group training over a 12-week period has generally found no significant difference in strength or body composition results — which suggests the extra spend on one-to-one buys convenience and full individualisation rather than meaningfully better results for most people.

Cost Comparison, Presented Plainly

Format

Typical London price

What you get

One-to-one PT

£50–£120+ per session

Full individual attention, fully bespoke programming

SGPT

£20–£40 per person, per session

Individualised programming within a small group, shared coaching time

Standard class

Included in membership

Structured group session, general coaching, no individual programme

Over a year of weekly sessions, the gap between one-to-one and SGPT can run into thousands of pounds — worth genuinely weighing up against what you actually need, rather than what sounds more premium.

How to Trial Both Formats Before Committing

Most gyms worth training at, including ours, will let you sample both formats before you commit to either long-term. It's worth actually doing this rather than guessing, the difference in feel between a one-to-one session and an SGPT session is bigger than the description suggests, and people are often surprised by which one they prefer once they've tried both.

Ask specifically whether a trial session is available for [SGPT class options] and how to book a one-to-one taster if you want to compare the two directly.

What a First SGPT Session Actually Looks Like

A well-run first SGPT session typically starts with a short individual check-in of your goals, injury history, current fitness level, even though the session itself is shared with others. From there:

1. A group warm-up, usually with some individual mobility adjustments where needed
2. The main session, where the coach moves between group members adjusting load, reps or exercise variations for each person specifically
3. Individual attention on technique, especially for compound lifts, even while others in the group continue their own set
4. A brief close-out, often with a note on what to focus on next session

It should feel noticeably more personal than a standard class, even though you're sharing the room with others, that's the whole point of the format.

Choosing a Qualified Coach, Whichever Format You Pick

Whichever route you go, it's worth checking the coach's qualifications regardless. In the UK, look for trainers who meet the CIMSPA Personal Trainer Professional Standard — typically a Level 3 qualification recognised by the Chartered Institute for the Management of Sport and Physical Activity, the UK's professional body for the fitness sector. This is increasingly the baseline that reputable gyms and insurers expect, and it's a reasonable proxy for whether a coach's training actually meets a recognised industry standard.

If you're still deciding whether structured coaching is the right next step at all, or whether you'd rather build consistency through classes first, our guide to HIIT classes near me is a good starting point — and you can book a 1-to-1 personal trainer directly whenever you're ready to take that step.