| Business | Phone |
| Comfort Zone Heat Llc 1946 N 13th St, Toledo 43624 | (419) 720-8700 |
| Comfort Zone Heating & Cooling 636 Southover Rd, Toledo 43612 | (419) 476-9850 |
| Robertson Mechanical 946 N 13th St # 335, Toledo 43614 | (419) 868-9232 |
| Industrial Burner Systems Inc 4731 South Ave # 4, Toledo 43615 | (419) 537-7077 |
| Omni Heating Ac & Boilers 1946 N 13th St, Toledo 43624 | (419) 578-7304 |