| Business | Phone |
| A Clear Quality Window Clean Concord 94520 | (925) 363-1303 |
| Action Building Svc 2351 Monument Blvd, Concord 94520 | (925) 934-4005 |
| All Bay Pro Window Cleaning 3312 Esperanza Dr, Concord 94519 | (925) 682-1738 |
| Anna's Housekeeping Svc Concord 94520 | (925) 686-0983 |
| Burger Building Maintenance Po Box 6343, Concord 94524 | (925) 944-0404 |
| Clearview Window 4344 Rose Ln, Concord 94518 | (925) 680-7474 |
| Deluxe Window Cleaning 2019 Norse Dr, Concord 94523 | (925) 689-3005 |
| Fresh Impressions Po Box 203, Concord 94522 | (925) 685-6000 |
| Glass Guru Window Cleaning Concord 94520 | (925) 363-1303 |
| Glasstech Window Cleaning 876 Saint John Cir, Concord 94518 | (925) 798-8343 |
| Marlins Window Cleaning Svc 3200 Northwood Dr # 307, Concord 94520 | (925) 595-5450 |
| Pantanella Window Cleaning 5514 Arizona Dr, Concord 94521 | (925) 673-8700 |
| Ron Israel Window Cleaning 967 San Simeon Dr, Concord 94518 | (925) 798-8988 |
| Sundance Window Cleaning Concord 94520 | (925) 686-0705 |