We called on Saturday of Labor Day weekend because they had a 24 hour Emergency Service listed. Although Metro-rooter was not the first place we called, all the others listed on Angies List as 24 hour service did not answer their phone. We left messages for the others, when we got to this number they answered the phone. They said they were very busy but could fit us in in the afternoon, which they did and we were very pleased. He was very nice, professional and honest, and explained what was wrong (alarm had gone bad and was going off without a reason). He even said it was optional to replace the alarm, that some people choose not to have an alarm at all. We chose to replace the alarm, and he had one with him, he replaced it and charged a reasonable amount. We were very, very pleased with this service. We would definitely recommend.