| Business | Phone |
| Bob Copeland & Sons Insulation 110 Garfield Ave, Union 63084 | (636) 583-5297 |
| Hall Brothers Insulation 201 Franklin Ave, Union 63084 | (636) 584-0002 |
| Hth Co 239 Rock Industrial Blvd, Union 63084 | (636) 583-8698 |
| Thermaltech Inc 239 Rock Industrial Blvd # 100, Union 63084 | (636) 584-0303 |