We were dealing with carpenter bees over the years. I tried a number of after market products, none to my success. Last year I contacted Cooper after hearing about them from a friend. Jonathan Mauriello called me back when I called on a Sunday, not expecting a call until normal business hours" of Monday- Friday. He came out the following day and explained everything to me about the treatment that they would be using. The price was reasonable for a treatment on a 2 story house. After the treatment the bees began to fall out of the nest. He also came back without me needing to follow up with him. He also left a note in the mailbox that he stopped by because I was not home that day. After the treatment I only seen dead carpenter bees. I will be calling him back again this spring/summer to be on the safe side and also to spray for ants around the house. I was pleased with the price and the customer service that I received. Jonathan also lives around the area so I know he would understand the type of insects we have around where I live.