| Business | Phone |
| Mobile Air 15 Short St, Harrington 19952 | (302) 398-9224 |
| Proformance Heating & Air 17234 S Dupont Hwy, Harrington 19952 | (302) 398-3134 |
| R S Bauer Heating & Cooling 17568 S Dupont Hwy, Harrington 19952 | (302) 422-4669 |
| Randy Shahan & Sons 1235 Vernon Rd, Harrington 19952 | (302) 398-6283 |