1. Columbia Plumbing & Heating 6660 Dobbin Rd, Columbia, MD 21045 Coordinate: 39.18775,-76.82581 Phone: (301) 596-1111
2. Associates Plumbing Inc 9630 Gerwig Ln, Columbia, MD 21046 Coordinate: 39.17425,-76.84408 Phone: (443) 917-2500