| Business | Phone |
| Schmidt Service Htg & Cooling 1822 E Square Dr, High Ridge 63049 | (636) 677-7700 |
| Specialized Environmental Cntl 2308 Chelsea Ct, High Ridge 63049 | (636) 677-3639 |
| Gildehaus Comfort Systems 5451 Dulin Creek Rd, High Ridge 63049 | (636) 671-1075 |
| J C's Ac 5220 Hunning Rd, High Ridge 63049 | (636) 677-2264 |