| Business | Phone |
| Affordable Appliance Po Box 1096, Brentwood 94513 | (925) 513-1901 |
| Carlyle Compressor Co 4505 Ohara Ave, Brentwood 94513 | (925) 240-1063 |
| Johnson Heating & Air Cond Po Box 2074, Brentwood 94513 | (925) 516-7120 |
| Pro-Tech Heating & Air Cond Brentwood 94513 | (925) 516-1776 |