Acosta H&C has the worst customer service in the world. They installed two new H&C in our home 2 years ago. Last week, during the heat wave, one of the A/C units stopped working. Keep in mind it's 100 degrees outside. I called & they said it would be a week before service. Three days later I called back & said they needed to do something. They said, sorry, but since we didn't have a service contract we went to the back of the non-service agreement line, too bad, so sad!, no exceptions! We called our neighbor who said they had an excellent H&C service company. I called them & they asked if the unit was completely not working & I said not working. They came out the same day. They said they give consideration to people who's unit is not working at all. Not my PREVIOUS service company who installed the units less than 2 yrs. ago. Caveat emptor!