| Business | Phone |
| Twin County Heating & Cooling 1154 State Route 6, Chehalis 98532 | (360) 748-1888 |
| Chehalis Sheet Metal Heating 350 Sw Riverside Dr, Chehalis 98532 | (360) 748-9221 |
| Northwest Heating & Cooling 48 Sw Chehalis Ave, Chehalis 98532 | (360) 748-7961 |