My AC broke down last night, I called several AC repair companies, only Dayton Service had a human being answerIng my call and sent an engineer to my house within 2 hrs. The engineer Mr Derek Gooch was very knowledgeable and efficient. He identified the problem right away and fixed it within an hour. Afterward, he spent time to explain to us the cause of the problem. The price is also fair. I strongly recommend Dayton S.