Interstate Mechanical Services, Inc. Interstate Mechanical Services, Inc. Search | Advanced Search | New Members | Coupons and Discounts | All Categories Other >> GNYWC Interstate Mechanical Services, Inc. 355 Sills RoadYaphank, NY 11980 | View on Google Maps Richard Tully, Jr. (201) 767-1192 | fax: (201) 282-1796 Visit Site