I called yesterday with an urgent issue. Wasps were swarming in my front yard and our lawn keeper was unable to mow. He was bitten repeatedly. I sent a text to Arterix and promptly received a response indicating that they would be out between 9 and 12 the next morning to take care of the problem. I received a text when the technician was 15 minutes out telling me that he was on the way. He arrived, explained what he was going to do and when to expect results as well as what to do if this treatment didn't get rid of the wasps. Thank you for your prompt response!