| Business | Phone |
| Brown Mechanical Contractors 3212 6th Ave S, Birmingham 35222 | (205) 323-1585 |
| Mallory & Evans Inc 4701 Lakeshore Pkwy, Birmingham 35211 | (205) 290-9124 |
| Crimson Mechanical Inc 134 Freda Jane Ln, Birmingham 35215 | (205) 854-3379 |
| Hardy Corp 430 12th St S, Birmingham 35233 | (205) 252-7191 |
| Hobbs & Assoc Inc 1809 Pinson St, Birmingham 35217 | (205) 849-5700 |
| Jack's Heating & Air Cond 2320 2nd Pl Ne, Birmingham 35215 | (205) 853-9765 |
| Stanley Jones 1876 Data Dr, Birmingham 35244 | (205) 988-0085 |