PureGym London Hounslow in Hounslow | Facilities, hours &... PureGym London Hounslow is a 24-hour gym in Hounslow, offering gym and fitness facilities, strength and cardio training, membership enquiries. Address: 54 High St, Hounslow TW3 1NWOfficial website Things to do today Things to do tomorrow This weekend Free events Family events Kids activities in London Live music in London Live sports in London Cinemas in London Gyms in London All London events