| Business | Phone |
| Public Works-Carpenter Shop 1365 Middlesex St, Lowell 1851 | (978) 970-3310 |
| Public Works-Electrical Div 1365 Middlesex St, Lowell 1851 | (978) 970-3333 |
| Public Works-Engineering Dept 375 Merrimack St # 61, Lowell 1852 | (978) 970-3330 |
| Lowell City Public Works Dept 1365 Middlesex St, Lowell 1851 | (978) 970-3300 |
| Lowell City Street Dept 1365 Middlesex St, Lowell 1851 | (978) 970-3316 |