Our smoke detectors started going off at 02:30, and the batteries were changed again. No help. Sent request for service at 03:40 and I received a phone call at 08:20 telling me of an arrival time... Taylor showed up and we discussed the issue and problem... Poof, He took care of what I/we figured would be the best course of action... Friendly professional, and seemed quite knowledgeable and ended the noisy problem, with new state of the art smoke detectors.. Taylor also explained there are no batteries to change again... Great news for an old man.. Thanks Taylor