| Business | Phone |
| A A Ontko Plumbing & Heating 13104 Shadyside Ln, Germantown 20874 | (301) 540-2955 |
| Roto-Rooter Plumbing & Drain Germantown 20874 | (301) 869-6900 |
| Cross Connection Technologies 13563 Demetrias Way, Germantown 20874 | (301) 916-2966 |
| O'Connor Plumbing & Htg Llc 19301 Mateny Hill Rd, Germantown 20874 | (301) 540-5050 |
| G D Bolton Plumbing & Heating 19061 Staleybridge Rd, Germantown 20876 | (301) 972-1825 |
| Germantown Plumbing 13017 Wisteria Dr, Germantown 20874 | (301) 428-3695 |
| Hph Plumbing & Heating Germantown 20874 | (301) 353-9558 |
| Jestar Plumbing & Heating 23130 Ridge Rd, Germantown 20876 | (301) 353-1841 |
| Kay's Specialities Plumbing Germantown 20874 | (301) 916-0725 |