| Business | Phone |
| Air Con Mechanical Svc 2136 Stewart Ave, Walnut Creek 94596 | (925) 279-3330 |
| Air Crafters Heating & Air Cnd Walnut Creek 94596 | (925) 280-4442 |
| Arctic Refrigeration Walnut Creek 94597 | (925) 686-0923 |
| Dependable Heating & Air Cond Walnut Creek 94596 | (925) 946-1511 |
| Knoll Systems Corp Walnut Creek 94596 | (925) 855-8400 |
| Lamorinda Air-Heating-Air Walnut Creek 94596 | (925) 933-2485 |
| Safe Appliance Walnut Creek 94596 | (925) 932-9394 |