The workers they sent out were polite and seemed knowledgeable, but they left finger prints everywhere. It seemed like there hands had been dipped in oil. I was dead set against calling them until I exhausted every cleaning solution we had in the office. I was at my wits end, so I called for advice on what kind of solvent was needed, I was routed to supervisor Trey's VM and never heard back. Tried two more times, same thing, NO RESPONSE!!!!!! Denver, CO