Profile: Gothic Arch Greenhouses, Inc. provides greenhouses and greenhouse supplies. We produce pavilions, pool covers, home additions and commercial buildings. We offer cold frames and high tunnels, quonset, vail, solarstar, appalachian, tetons, thermolater, ranges & retractable. Our coldframes come complete with anchors, bows, corner bracing and hardware. Our frame is manufactured from allied gatorshield structural steel tubing with rafter spacing. Our panels are constructed from UV-stabilized polycarbonate for heat retention and hot spot reduction.