At Robert O'Brien Oil Burner Service, we specialize in oil burner repair and installations. We have one of the lowest service charge in Nassau County and we stand by it. We have several years of experience and are a family owned business since 2005. Give us a call and let us take care of your needs. We install high efficiency oil burners and boilers. Fully insured and licensed in Nassau County. We are very competitive in our pricing on installations and we provide fast and reliable service.