I hired ProTech to remove a swamp cooler from a second floor roof. They estimated $200. Since they gave me a date about a month ahead, i had someone else pull the unit off the roof jack to i could measure and order the custom skylight to replace it. The new skylight was on order for 2 weeks out and the swamp cooler sat on the roof. Then, ProTech suddenly called to say they were coming the next day. They charged me 50% over the estimate, put on a roof jack cover that i did not need (duct tape would have worked for the 2 weeks or so that it was going to be exposed), and complained about driving the cooler 2.5 miles to my house. The bill came a month later, and the manager was super defensive and unyielding when i called to protest the higher bill. Bad business.