Contact Us Address: Sheet Metal Worker’s Local 7 – Zone 1 P.O. Box 1156 Troy, MI 48099-1156 Local Phone Number: (248) 641-4971 Toll Free Number: (866) 822-7037 Remit Address: Sheet Metal Worker’s Local 7 – Zone 1 Attn: Contribution Dept. P.O. Box 1156 Troy, MI 48099-1156