| Business | Phone |
| Hoyt Brumm & Link 1400 E 9 Mile Rd, Ferndale 48220 | (248) 548-3355 |
| Industrial Installation Spec 1425 Fox St, Ferndale 48220 | (248) 547-4450 |
| Contrast Mechanical 840 Hilton Rd, Ferndale 48220 | (248) 336-2320 |
| Finesystems Mechanical Llc 981 E Saratoga St, Ferndale 48220 | (248) 542-7781 |
| Mc Shane Mechanical Contr 830 Orchard St, Ferndale 48220 | (248) 336-1366 |