When we retired in 2011 and went back to the States I had my first good cleaning in quite a few years.....but I was ready for it. My UK wife was not. I just called our cleaner Heather the Pain Goddess. The first one was the worst and it half killed me and ended up with a couple of shots. My wife didn't know she could ask for a shot......she thought she was going to die it hurt so much (my wife is tougher than me....of course). I had only had the barely cleaning job they do here......Heather scraped, dug, she may have had a jackhammer as well...not sure. They wanted me to come back in 3-4 months since they were worse than they were used to. I explained it was just because I had been living elsewhere for a long time and I would just stick with the 6 month cleaning......she didn't really believe me. When I came back 6 months later and they were "reasonable", she agreed 6 months was ok. My wife went back a couple of those extra times before they would go to 6 months for her. Now we are back in the UK.....I might ask for a good cleaning once a year.