| Business | Phone |
| Cates Heating & Cooling 118 20th St, Washougal 98671 | (360) 835-3913 |
| Conley Mechanical 2241 E St, Washougal 98671 | (360) 335-0405 |
| Dan's Top Notch Heating 594 C St, Washougal 98671 | (360) 835-9364 |
| Thompson's Heating & Cooling 642 Belle Center Rd, Washougal 98671 | (360) 835-0963 |