| Business | Phone |
| Clad Sheet Metal Llc 2850 Frankford Ave, Philadelphia 19134 | (215) 291-1808 |
| Controlled Temperature Systems 7345 Milnor St, Philadelphia 19136 | (215) 708-0155 |
| Wyncote Sheet Metal Co 6631 Wyncote Ave, Philadelphia 19138 | (215) 424-4499 |
| William J Donovan Co 3429 W Indiana Ave, Philadelphia 19132 | (215) 225-3677 |
| Garth Gill 4529 Springfield Ave, Philadelphia 19143 | (215) 382-2553 |
| Industrial Sheet Metal Special 4814 N Hope St, Philadelphia 19120 | (215) 329-2047 |
| Max Heating & Cooling Inc 8301 Torresdale Ave, Philadelphia 19136 | (215) 624-5001 |
| Tri County Sheet Metal Inc 10071 Sandmeyer Ln, Philadelphia 19116 | (215) 671-8375 |