PureGym Dagenham in Barking and Dagenham | Facilities,... PureGym Dagenham is a 24-hour gym in Barking and Dagenham, offering gym and fitness facilities, strength and cardio training, membership enquiries. Address: Merrielands Cres, London RM9 6SJOfficial 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