Be careful. I used to use one of the big chains and was very unhappy with the work. And, almost never got the same workers twice. After bringing in a Spanish speaking neighbor to translate I discovered the workers were very unhappy too.!

They felt that they were being ripped off by the company--and, after hearing their stories I decided I agreed.

Hired a cleaning lady recommended by a friend and it worked out much better.

IMHO, the margin in the mass cleaning business may be too small to support worthwhile frequent flyer bonuses.