| Business | Phone |
| Bowen Paul E Plumbing Heating 125 German Chapel Rd, Prince Frederick 20678 | (410) 535-0487 |
| Hutchins Plumbing Inc 2225 Henry Hutchins Rd, Prince Frederick 20678 | (410) 535-1516 |
| Mike's Plumbing Htg & Drain 25 Overlook Dr, Prince Frederick 20678 | (301) 855-9200 |
| W B Plumbing Systems 5180 Sandy Point Rd, Prince Frederick 20678 | (410) 535-0955 |