Yes, Heights Tower Systems is still in business. Steve gave the correct 1-800 phone number. Here is additional information: Heights Tower Systems 9505 Groh Road Bldg 70 E Grosse Ile MI 48138 Also phone 313-6926711 and fax 313 692-6727 The President and owner is Drake Dimitry Jr. I had him build my tower in 1993 and ordered from him some accesories this year. 73, Bob n8wfl