| Business | Phone |
| Glendale Heights Bldg Dept 300 Civic Center Plz, Glendale Heights 60139 | (630) 260-6030 |
| Glendale Heights Civic Center 300 Civic Center Plz, Glendale Heights 60139 | (630) 260-6000 |
| Glendale Heights Planning Dept 1611 Bloomingdale Rd, Glendale Heights 60139 | (630) 260-6067 |
| Glendale Heights Planning Dept 300 Civic Center Plz, Glendale Heights 60139 | (630) 260-6067 |
| Glendale Heights Planning Dept 300 E Fullerton Ave # 2, Glendale Heights 60139 | (630) 260-6067 |
| Glendale Hts Personnel Dept 300 E Fullerton Ave, Glendale Heights 60139 | (630) 260-6005 |
| Glendale Hts Purchasing Dept Glendale Heights 60139 | (630) 260-6013 |
| Building Maintenance Dept 270 E Fullerton Ave, Glendale Heights 60139 | (630) 260-6055 |