| Business | Phone |
| Duncanville City Utilities 203 E Wheatland Rd, Duncanville 75116 | (972) 780-5061 |
| Duncanville City Water & Sewer 201 James Collins Blvd, Duncanville 75116 | (972) 780-5020 |
| Duncanville Utility Billing 201 James Collins Blvd, Duncanville 75116 | (972) 780-5010 |
| Duncanville Utility Billing 203 E Wheatland Rd, Duncanville 75116 | (972) 780-5010 |