Exhibit 21.1
SUBSIDIARIES OF THE REGISTRANT
| State or other jurisdiction of | ||
| Name | incorporation or organization | |
| Ply Gem Industries, Inc. | Delaware | |
| Alenco Building Products Management, L.L.C. | Delaware | |
| Alenco Extrusion GA, L.L.C. | Delaware | |
| Alenco Extrusion Management, L.L.C. | Delaware | |
| Alenco Holding Corporation | Delaware | |
| Alenco Interests, L.L.C. | Delaware | |
| Alenco Trans, Inc. | Delaware | |
| Alenco Window GA, L.L.C. | Delaware | |
| Aluminum Scrap Recycle, LL.C | Delaware | |
| AWC Arizona, Inc. | Delaware | |
| AWC Holding Company | Delaware | |
| Foundation Labs by Ply Gem, LLC | Delaware | |
| Glazing Industries Management, L.L.C. | Delaware | |
| Great Lakes Window, Inc. | Ohio | |
| Kroy Building Products, Inc. | Delaware | |
| Mastic Home Exteriors, Inc. | Ohio | |
| MW Manufacturers Inc. | Delaware | |
| MWM Holding, Inc. | Delaware | |
| Napco, Inc. | Delaware | |
| New Alenco Extrusion, Ltd. | Texas | |
| New Alenco Window, Ltd. | Texas | |
| New Glazing Industries, Ltd. | Texas | |
| Ply Gem Canada, Inc. | Alberta, Canada | |
| Ply Gem Pacific Windows Corporation | Delaware | |
| Variform, Inc. | Missouri | |