| Business | Phone |
| Abc Mechanical Svc 127 Lewis Ct, Schaumburg 60193 | (847) 524-2280 |
| Allied Air Conditioning & Htg Schaumburg 60173 | (847) 781-1200 |
| Engler Heating & Air Cond Co 4285 N Sturbridge Dr, Schaumburg 60192 | (847) 705-7300 |
| Elk Grove Mechanical Svc 1010 Morse Ave D, Schaumburg 60193 | (847) 534-1175 |
| Duo-Temp Inc 515 Morse Ave, Schaumburg 60193 | (847) 895-7311 |
| Complete Comfort Systems Inc 914 Morse Ave, Schaumburg 60193 | (847) 584-4258 |
| Controlled Environmental Tstng 1350 Remington Rd # U, Schaumburg 60173 | (847) 490-8400 |
| Creevy Heating & Air Cond Schaumburg 60193 | (847) 584-1857 |