| Business | Phone |
| Carroll Electric 117 Park Pl, Delavan 53115 | (262) 728-4071 |
| Williams Electric 3481 T K Ln, Delavan 53115 | (262) 728-9225 |
| Schnick Electric 119 S Main St, Delavan 53115 | (262) 728-5690 |
| Rob's Walworth Electric 4914 Bailey Rd, Delavan 53115 | (262) 245-9710 |
| Peck & Weis Heating & Cooling 508 S 2nd St, Delavan 53115 | (262) 728-8844 |