I’ve been using Day’s service for a number of years(I live in Wellfleet, two towns away from them). Two years ago they converted my home from oil to propane. They did an excellent job; highly professional, neat and very high quality work. Their propane service is excellent. I spend half the year in AZ and from time to time, during the winter, I’m concerned about the amount of propane in my tank(which also powers by whole-house generator). One phone call and the tank is filled within a few days. I just had them replace my hot-water heater. Again, very high quality work, done on time and when promised.