| Business | Phone |
| Christiana Borough Water Simmontown Rd, Gap 17527 | (717) 442-1095 |
| Smucker's Plumbing & Heating 5490 Elam Rd, Gap 17527 | (717) 768-8142 |
| S & S Plumbing & Heating 109 Meetinghouse Rd, Gap 17527 | (717) 768-3769 |
| Residential Mechanical Systems Gap 17527 | (717) 442-3164 |