I purchased a Groupon coupon to get my windows cleaned last summer. It took about a month to get an appointment scheduled and I paid an extra $30 to get the work done as the company stated my coupon did not cover all of the work. there were plenty of exclusions like basement windows and all the doors. When the work was done, they came and went and missed an entire side of the house. I asked them to come back and do what I paid for and I am still waiting (it's been 7 months).