| Business | Phone |
| Apex Plumbing 3240 Corporate Ct, Ellicott City 21042 | (410) 480-9800 |
| Apex Service Co Inc Ellicott City 21043 | (410) 480-7010 |
| Charles H Mullenberg Plumbing Ellicott City 21043 | (410) 203-2077 |
| Crouse Plumbing & Heating 3907 Old Columbia Pike, Ellicott City 21043 | (410) 465-1110 |
| Doit Plumbing & Heating 11350 Frederick Rd, Ellicott City 21042 | (410) 531-2330 |
| Dr Rooter Plumbing Ellicott City 21042 | (410) 465-0127 |
| Drain Opener Plumbing Co 3551 Sylvan Ln, Ellicott City 21043 | (410) 203-2292 |
| Drain Relief Inc Ellicott City 21042 | (410) 465-2285 |
| Econo-Rooter Plumbing Inc Ellicott City 21042 | (410) 465-7576 |
| Farnen & Dermer Inc Ellicott City 21042 | (410) 465-7129 |
| Leonard E Sutton & Co 2020 Daniels Rd, Ellicott City 21043 | (410) 744-4552 |
| M A Cashman Plumbing & Heating Ellicott City 21042 | (410) 465-4227 |
| R J Newman Inc 4016 Heritage Hill Ln, Ellicott City 21042 | (301) 596-9410 |
| Royal Flush Plumbing & Heating Ellicott City 21042 | (410) 465-6200 |
| Sun Plumbing & Heating 3134 Hearthstone Rd, Ellicott City 21042 | (410) 313-9629 |