I will never use Dor Mar HVAC, LLC again My heat pump quit working and had a technician come out the 2nd of April to look at it he said the Freon was empty so he filled it then said i had a small leak somewhere, but it would last for awhile, but was empty 2 weeks later. Had another tech come out and said it was a bad leak in the condenser coils it needs replace was told it was still under warranty but they wouldn't honor it or give my money back for the Freon that I wouldn't have put it in it to waist that kind of money.