They are a total rip-off. I purchased a $50 groupon for their services.... it was a whole house cleaning. When I called to to schedule my cleaning I was told I there may maybe extra charges depending on the number of airducts and returns. I asked what the average house had and how much more it would be... oh shouldn't be that much.... My house is average size under 3000 Square feet... they showed up .... checked everything out and said it would cost an additional $650....... I got them down to 450 (I could kick my self for not kicking them out) an additional $100 would have been acceptable no more. Then thy told me they would email the receipt... they never did. The dust in My house is no better than it was b4 they came... Call someone else!