| Business | Phone |
| American Roof Systems 2641 N Main St, Walnut Creek 94597 | (925) 838-7663 |
| Cal-Pac Roofing Walnut Creek 94596 | (925) 945-8150 |
| Elite Solutions Roofing Co Walnut Creek 94596 | (925) 932-2309 |
| Northstar Roofing Walnut Creek 94596 | (925) 937-2200 |
| Raneri & Long Roofing Co Walnut Creek 94596 | (925) 944-7059 |
| Roof Right Walnut Creek 94597 | (925) 979-9690 |
| Sierra Roofing Systems 6955 Sierra Ct#201, Walnut Creek 94596 | (925) 932-4388 |