I've been going to Kobkun for years as it's the best massage in London.
They always ask how the pressure is and accommodate which areas you'd like focused on.
This is the only place I go for a massage now as I love it so much. I'll be back!
Foot massage is brilliant, only downside is the noise as the chairs are in the reception area so hard to relax when other customers come and go. some are very loud! but def go again.