| Business | Phone |
| Trico Heating Inc 3078 Goldie Rd, Oak Harbor 98277 | (360) 675-2700 |
| Hearth & Home 3027 Heller Rd, Oak Harbor 98277 | (360) 679-7488 |
| Island Heating & Air Cond 630 Industrial Ave, Oak Harbor 98277 | (360) 679-1900 |
| J D Mechanical Systems 3425 Taylor Rd, Oak Harbor 98277 | (360) 679-4131 |
| Larson Heating & Mechanical 186 W Henni Rd, Oak Harbor 98277 | (360) 675-0538 |