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London Strength Training (Most Loved)

Most loved strength training in London

London’s strength training scene spans everything from raw, industrial strongman spaces to sleek boutique TRX studios — and the ClassPass community has strong opinions about which ones deliver. We combed through thousands of reviews to find the studios that don’t just get high ratings but earn genuine enthusiasm. These are the places members call “the best class I’ve ever been to.”

Studios were ranked by a combination of average rating, review enthusiasm, and consistency of superlative praise from the ClassPass community.

1. The Foundry — STRONG

The Foundry in Moorgate has built a reputation as one of London’s most exhilarating strength training experiences. Their STRONG class — featuring log lifting, sled dragging, prowler pushing, and atlas stone carrying — earns the kind of passionate reviews that most studios only dream of. The progressive, adaptive programming means every member gets results at their own level.

“Extremely welcoming environment and a setup that encourages you to push yourself while also allowing for adaptations as needed. Clear instructions and instructors were friendly and available to provide feedback. If you can’t tell, I’m a big fan.”

“High-energy class, friendly staff, and a great space. All good!”

Rating: 4.91 (500+ reviews)

2. Abi’s Fitness Studio — Kettlebell

This Catford studio has quietly become one of south London’s most talked-about strength destinations. The kettlebell and HIIT classes earn consistently enthusiastic reviews, with members praising the welcoming atmosphere and challenging-but-achievable programming.

“Brilliant instructor who knows the craft and adjusts the approach for every fitness level. Great experience — really intense but fulfilling.”

Rating: 4.95 (94 reviews)

3. Sweat by BXR — Strength TRX

Marylebone’s Sweat by BXR brings premium production values to functional training, and the community notices. From the TRX sculpt classes to the versa climber sessions, members rave about the instructor energy, the curated playlists, and the full-body challenge that leaves them buzzing for hours.

“I absolutely loved this class. The instructor really pushed us to give it our all, but in the best possible way. Her energy and motivation made the whole experience feel amazing. Easily one of the best classes I’ve ever had.”

“Great class — always hit high numbers with this instructor. She never has an off day. Whether you’re new or a pro, she’ll make a tough class a lot of fun.”

Rating: 4.85 (186 reviews)

4. Stars Gym — Pump and Tone

Stars Gym has carved out a loyal following in London’s strength scene with its no-nonsense, results-driven classes. The Pump and Tone and Glute Gains sessions draw members who appreciate straightforward programming and encouraging coaches in a well-equipped space.

“The instructor was lovely — very welcoming and encouraging. The class flew by. It was challenging in a good way, and the space was clean and well equipped.”

Rating: 4.75 (213 reviews)

5. BLAST Fitness Studio — Metcon BLAST

On Argyle Road, BLAST Fitness Studio delivers compact, high-intensity strength sessions that punch well above their weight. The coaching-focused approach means members get real feedback, not just a playlist and a timer.

“Great experience — really intense but fulfilling training. The coach knows what he’s doing and adjusts the approach for your fitness level.”

Rating: 4.76 (17 reviews)

6. Paul Cook Fitness — Fitcamp

Out in Wimbledon, Paul Cook Fitness offers outdoor-style bootcamp training that blends circuit work, HIIT, and strength in a supportive group setting. The small class sizes and personal coaching style earn it devoted fans across southwest London.

“Brilliant instructor with a great group atmosphere. Definitely recommend.”

Rating: 4.85 (13 reviews)

Find your favourite

London’s strength training studios offer everything from strongman circuits to boutique TRX sculpt — and the best way to find your fit is to try a few. Browse strength training classes and appointments in London on ClassPass to discover your next challenge.

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