Profile: Bostwick Co., C. G. is a provider of roofing and sheet metal contractors. Our services include slate & tile roofing, flat roofing, copper roofing, custom metal, gutters & downspouts, snowguards, and maintenance. Our slate and tile roofs are not created equal. We Use appropriate materials is critical in installation and repair. We also install and restore built-up and single-ply flat roofs. Our copper is available in red or plain, light green pre-patinated and pewterie gray alloy coated as well as many different weights and tempers. We commonly produce box gutters, gutter linings, downspouts and leader heads. Our snowguards are designed to minimize this damage by holding masses of snow and ice in place so that it will melt gradually into the gutters.