| Business | Phone |
| Builders First Source 3302 Ballenger Creek Pike, Frederick 21703 | (301) 874-2442 |
| East Coast Millwork 900 E Patrick St, Frederick 21701 | (301) 631-0200 |
| Frederick Architectural 4989 Winchester Blvd, Frederick 21703 | (301) 874-1081 |
| Pwi Casework Inc 5422 Mount Zion Rd, Frederick 21703 | (301) 473-5237 |