| Business | Phone |
| Mc Chesney Electric 22036 Woodward Ave, Ferndale 48220 | (248) 541-5900 |
| Merit Electric Llc Ferndale 48220 | (248) 584-0600 |
| Finesystems Mechanical 981 E Saratoga St, Ferndale 48220 | (248) 542-7802 |
| Patriot Electrical Mechanical 1425 Fox St, Ferndale 48220 | (313) 220-0824 |