| Business | Phone |
| All Maintenance 501 Wedgepark Dr, Mcdonough 30252 | (404) 391-0978 |
| B & M Heating & Air Cond 205 Laney Ct, Mcdonough 30252 | (678) 432-6750 |
| B-J Heating & Air Condition Co 2951 Commerce Pl, Mcdonough 30253 | (770) 957-5563 |
| Bowman's Heating & Air Cond Mcdonough 30253 | (770) 957-5449 |
| Cline Air 800 Meadowbrook Dr, Mcdonough 30253 | (770) 957-7160 |
| Comfort Masters Heating & A/C 1091 Highway 42 N, Mcdonough 30253 | (770) 719-7561 |
| Craig's Mobile Air Control Inc 403 Autumn Lake Ct, Mcdonough 30253 | (770) 474-5933 |
| Gilreath Service Co 112 Hampton St, Mcdonough 30253 | (770) 957-5640 |
| Hays Heating & Air Inc 235 Mackey Rd, Mcdonough 30252 | (770) 898-0066 |
| Jenkins Heating & Cooling 3374 Highway 81 E, Mcdonough 30252 | (770) 957-3091 |
| Jetz Mechanical 790 Chaseridge Dr, Mcdonough 30253 | (678) 583-0560 |
| Logan Heating & Air 2255 Highway 42 N, Mcdonough 30253 | (770) 507-3990 |
| Mgm Heating & Air Cond 128 Chamlee Way, Mcdonough 30252 | (770) 914-9961 |
| R E Michael Co 227 Mcdonough Pkwy, Mcdonough 30253 | (770) 898-1358 |
| S & Shvac Svc Inc 1204 Cooper Rdg, Mcdonough 30252 | (770) 914-8588 |
| T & M Heating & Air 912 Dailey Mill Rd, Mcdonough 30253 | (770) 914-0111 |
| Thompson's Air Conditioning 205 Hol Mar Trl, Mcdonough 30253 | (770) 957-8108 |
| Timco Mechanical Heating & Air 405 Wynbrook Dr, Mcdonough 30253 | (770) 898-8942 |
| Absolute Comfort Inc Htg & Ac 95 Mackey Rd, Mcdonough 30252 | (770) 320-8486 |
| Air Concepts Heating & Air 264 Sunny Holw, Mcdonough 30252 | (770) 914-8698 |