A commercial floor polisher or steam cleaning machine (White City W12)

My community centre has a vast expanse of linoleum that gets grubby very quickly with volume of people crossing it every day. We are using too much water using ordinary mops and buckets. Who knew it was so expensive to clean a floor. Any automated machine that buffs, gets up sticky marks or operates on steam of heavier capacity than a domestic one would make our accountant smile. 😊