| Business | Phone |
| Total Property Maintenance 1084 Shary Cir # B, Concord 94518 | (925) 687-2900 |
| Adjay Construction Inc 4343 Briarcliff Ct, Concord 94521 | (925) 933-3931 |
| All Construction & Remodeling 1319 Linden Dr, Concord 94520 | (925) 525-8490 |
| Arch Builders & Design 1173 Limeridge Dr, Concord 94518 | (925) 944-5757 |
| B & R Construction Co 1647 Willow Pass Rd # 116, Concord 94520 | (925) 228-8881 |
| Best Home Remodeling 1310 Monument Blvd # E, Concord 94520 | (925) 356-2420 |
| Boydstun Construction 5016 Forni Dr, Concord 94520 | (925) 827-5711 |
| Carey Brothers Concord 94520 | (925) 682-5966 |
| Cda Construction Co Po Box 38, Concord 94522 | (925) 372-8642 |
| Cornerstone Home Improvemnts Concord 94520 | (925) 680-1762 |
| Dan Garth Phillips Constr 1231 Glenwood Dr, Concord 94518 | (925) 689-7857 |
| Eric Sjoberg Construction Home Concord 94520 | (925) 609-6468 |
| Extreme Home Renovations 4482 Deerberry Ct, Concord 94521 | (925) 360-3075 |
| Gary Fair Construction Concord 94520 | (925) 671-5464 |
| J D Construction Concord 94520 | (925) 676-1750 |
| Klekar Construction 3498 Clayton Rd, Concord 94519 | (925) 676-6406 |
| Leintz Construction Co 5306 Vista Point Ct, Concord 94521 | (925) 672-9620 |
| Lyco Carpentry & Masonry Svc Concord 94520 | (925) 726-8562 |
| Mte Construction Concord 94520 | (925) 459-0508 |
| Robinett Construction Concord 94520 | (925) 676-5283 |
| S Woods Construction Concord 94520 | (925) 676-5432 |
| Shieman Construction Concord 94520 | (925) 825-6651 |
| Sinclair Construction 5524 Michigan Blvd, Concord 94521 | (925) 672-4401 |
| Toutjian Construction 1647 Willow Pass Rd # 212, Concord 94520 | (925) 686-1959 |
| Uribe Quality Construction 3707 El Campo Ct, Concord 94519 | (925) 687-5782 |
| Walter D Lindquist Inc 1238 Diamond Way, Concord 94520 | (925) 825-2400 |
| Wds Construction Co 3498 Clayton Rd # 103, Concord 94519 | (925) 687-2400 |