| Business | Phone |
| Diversified Piping 3830 Airfield Ct W # 3, Lakeland 33811 | (863) 644-1211 |
| Hdi Mechanical 4451 Holden Rd, Lakeland 33811 | (863) 646-8089 |
| Keller Mechanical & Engrg 4442 Holden Rd, Lakeland 33811 | (863) 646-9272 |
| Mixon Diversified Inc 2708 Magnolia Ave, Lakeland 33813 | (863) 644-1234 |
| Q & Q Inc 4310 Sandyway Ln, Lakeland 33803 | (863) 665-6197 |
| Shumate Mechanical Refrig 3126 Reynolds Rd, Lakeland 33803 | (863) 510-0182 |