Exhibit 21.1
SUBSIDIARIES OF THE REGISTRANT
| Name |
State or Other Jurisdiction of Incorporation Or Organization | |
| 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, L.L.C. |
Delaware | |
| AWC Arizona, Inc. |
Delaware | |
| AWC Holding Company |
Delaware | |
| Foundation Labs by Ply Gem, LLC |
Delaware | |
| Gienow Canada Inc. |
Alberta, Canada | |
| Glazing Industries Management L.L.C. |
Delaware | |
| Great Lakes Window, Inc. |
Ohio | |
| Kroy Building Products, Inc. |
Delaware | |
| Mastic Home Exteriors, Inc. |
Ohio | |
| Mitten, Inc. |
Ontario, Canada | |
| 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. |
Canada | |
| Ply Gem Industries, Inc. |
Delaware | |
| Ply Gem Pacific Windows Corporation |
Delaware | |
| SimEx, Inc. |
West Virginia | |
| Simonton Building Products LLC |
Delaware | |
| Simonton Industries, Inc. |
California | |
| Simonton Windows, Inc. |
West Virginia | |
| Simonton Windows & Doors, Inc. |
Delaware | |
| Variform, Inc. |
Missouri | |