| Business | Phone |
| Lindal Cedar Homes Inc 3340 Mt Diablo Blvd # E, Lafayette 94549 | (925) 284-6240 |
| Cem Development 3705 Mount Diablo Blvd, Lafayette 94549 | (925) 962-1222 |
| Jack Ethan Builders 3433 Golden Gate Way, Lafayette 94549 | (925) 283-8612 |
| Momsen Construction & Dev Inc 251 Lafayette Cir # 210, Lafayette 94549 | (925) 284-3330 |