PureGym
93 sites
Budget
The biggest 24/7 footprint in London by some distance. Standalone
branches are almost always round-the-clock; the ones tucked inside
shopping centres and office blocks inherit the host building's hours,
which is where most of the "but the website said 24/7" complaints come
from. Kit is no-frills but the free-weights areas at the larger sites
are genuinely good.
Day pass Yes
PIN entry Overnight
Staffed Daytime only
See all 115 PureGyms in London →
The Gym Group
86 sites
Budget
Effectively PureGym's twin on hours as well as price — a near-identical
24/7 footprint across London, with the same caveat about hosted sites.
Newer branches have noticeably better kit. If both chains have a
branch near you, pick on the specific gym floor, not the brand.
Day pass Yes
PIN entry Overnight
Staffed Daytime only
See all 90 in London →
Anytime Fitness
66 sites
Mid-range
24/7 is the entire proposition — it's in the name, and unlike the budget
chains it holds true at essentially every site. Franchised, so kit and
size vary a lot branch to branch, and it prices above PureGym and The
Gym Group. The trade you're making is consistency of access for
consistency of equipment.
24/7 All sites
Fob entry Overnight
Kit Varies by branch
See all 71 in London →
BUZZ Gym
2 sites
Budget
A small independent-feeling chain with a couple of 24/7 London sites.
Worth a look if one is genuinely on your commute — otherwise the
bigger three will have something closer.
24/7 Yes
Coverage Limited
See all 2 in London →
What this list does and doesn't cover
These 247 sites are the ones we've confirmed as 24/7 across the major
chains. It is not every 24-hour gym in London — independent gyms
and smaller operators run round-the-clock too, and we only publish
opening hours once we've actually confirmed them for that specific
branch rather than assuming a chain-wide default.
Compiled from the operators' published information and last checked on
3 August 2026. Hours and prices change, and a handful of branches sit
inside host buildings that close. Check the branch before you travel —
and if you find something out of date, you can correct it directly in
the app.