| Business | Phone |
| Weatherwise Heating & Air Cndg 297 N Cambridge Ct, Grayslake 60030 | (847) 548-9048 |
| Miller's Area Heating Inc 112 Center St, Grayslake 60030 | (847) 223-0211 |
| Home Comfort Plumbing Heat Ac 18513 W Main St, Grayslake 60030 | (847) 231-4600 |
| Stuart Goldstein 174 Suffolk Ln, Grayslake 60030 | (847) 548-6266 |
| Johnson Heating & Cooling Grayslake 60030 | (847) 543-8549 |