| Business | Phone |
| Dubuque Window & Siding Co 2380 Wintergreen Dr, Dubuque 52002 | (563) 582-4567 |
| Hein Window Jambs Inc 1111 Purina Dr, Dubuque 52001 | (563) 582-3884 |
| Ideal Window & Door Supply Dubuque 52001 | (563) 557-0069 |
| Pella Window Store 2255 John F Kennedy Rd, Dubuque 52002 | (563) 557-1192 |
| Zephyr Aluminum Products Inc 555 Huff St, Dubuque 52003 | (563) 588-2036 |