UPDATE: They returned to redo the windows properly. Thank you.
Hired this company based on Homestars reviews to clean the exterior windows on our townhouse.
They cleaned most of the windows with a brush that had water coming out of it on the end of a long pole. They did not dry these windows. When I questioned this, he said they used purified water that didn't require drying. Even if they used distilled water, there are 2 problems with this technique - without getting up close, you can't see the dirt left behind, and leaving windows wet invariably leads to drips and spotting as blowing debris gets into it before it dries.
They hand washed and dried a few of our windows and these turned out great
This company has good prices, but make sure that if you want spotless windows, you ask them to hand wash and dry all of them.
- Company Response
Thank you, Sandy, for your feedback!
Looking forward for the future cooperation.