Hightower Service IncHightower Service, Inc. is a family owned and operated business that has been serving the Arlington Area since 1952. HSI is a proud Carrier Factory Authorized Dealer and a Presidents Award winner. We service all makes and models of equipment both residential and commercial. HSI also offers a complete electrical service department. The next time you need a full service HVAC or Electrical company, give Hightower Service, Inc. a call.