Unfortunately I have had a really bad experience with skweeky clean. I paid them a LOT of money to do what was described as a spring clean in my house. There were 3 people here, for most of the day. And my house was not filthy. Anyway, they promised me that they would clean behind the fridge, hoover behind the cot and children's beds etc, but none of these things were done.
They gave me a 'courtesy call' that evening to see how it had gone, and I said that I was rather dis-satisfied. They said they would look into it, then called me back to say they had spoken to the cleaners who said that they had cleaned behind the fridge etc, and basically accused me of being a liar.
So I emailed them the photos that I had taken when I had got home. I heard no more. Then the next day, with no warning, two people from the company, who I can only describe as 'heavies' turned up on my doorstep and demanded to see the places where I felt work had not been carried out properly. By that time I had cleaned myself (they hadn't even dusted mantlepieces for example) and again I was all but accused of lying. I was made to feel extremely uncomfortable in my own home.
In the end they cut one hour's work off my bill which was no where near enough but I felt so intimidated by them that I paid the rest, but I wouldn't use them again in a million years.