| Business | Phone |
| Brown Welding Svc 1500 Adams St Ne, Washington 20018 | (202) 251-4532 |
| Donaldson's 24 Hr Welding Svc 762 Park Rd Nw, Washington 20010 | (202) 829-8896 |
| Lee Welding Co 120 7th St Ne, Washington 20002 | (202) 543-8970 |
| Nelson's Welding 1101 W St Se, Washington 20020 | (202) 575-4775 |
| People's Welding Co 1020 Bladensburg Rd Ne, Washington 20002 | (202) 832-4820 |
| Y K Welding Co 1325 5th St Ne, Washington 20002 | (202) 544-4810 |
| Ace Welding Co 1310 Ridge Pl Se, Washington 20020 | (202) 889-6440 |