| Business | Phone |
| Shep's Air Conditioning & Htg 8527 Edgeworth Dr # A, Capitol Heights 20743 | (301) 350-6800 |
| United Service Co 8831 Walker Mill Rd, Capitol Heights 20743 | (301) 336-7020 |
| United Supply & Distributing 8713 Ritchie Dr, Capitol Heights 20743 | (301) 333-6050 |