In order to provide building industry professionals with the full range of products and the depth of service needed to be truly competitive in today’s sophisticated marketplace, Hamilton Building Supply has established the following divisions. Each is staffed with knowledgeable, experienced and friendly people who are fully versed in their areas of expertise:

- Andersen Window & Door Division
- Cabinetry Division
- Commercial Door & Hardware Division
- Custom Millwork Division
- Lumber and Hardware Division
- Marvin Window & Door Division
- Pre-Finishing Division
- Rental Tool Division
- Residential Door Division
- Stair & Truss Division
- Therma-Tru Door Division
- Window & Door Tune-up Division