| Business | Phone |
| California Electric Svc 1170 Burnett Ave, Concord 94520 | (925) 827-1011 |
| Electric Euro Svc 1913 Salvio St, Concord 94520 | (925) 687-1442 |
| Heating & Cooling Solutions 4647 Sugarland Cir, Concord 94521 | (925) 827-3217 |
| L A Appliances 1960 East St, Concord 94520 | (925) 687-3963 |