| Business | Phone |
| A A Plus Heating & Cooling 110 N Verlinden Ave, Lansing 48915 | (517) 485-4329 |
| A-1 Mechanical Encompass Svc 4428 S Creyts Rd, Lansing 48917 | (517) 322-2300 |
| A-Ok Heating & Cooling 4013 1/2 Aurelius Rd, Lansing 48910 | (517) 882-0126 |
| A/C Mechanical Systems Lansing 48911 | (517) 882-4700 |
| Air Engineering & Conditioning Lansing 48912 | (616) 583-1600 |
| Anderson Air Conditioning Inc 201 N Hosmer St, Lansing 48912 | (517) 372-3100 |
| Thermal Systems 2020 Ltd 320 W Oakland Ave, Lansing 48906 | (517) 267-0771 |
| Bill's After Hours Heating 903 Banghart St, Lansing 48906 | (517) 484-6799 |
| Comfort First Heating & Cool 3375 N Waverly Rd, Lansing 48906 | (517) 323-3314 |
| Commercial Air 2580 Alamo Dr, Lansing 48911 | (517) 272-1888 |
| D & L Heating & Air Cond 16146 S Us Highway 27, Lansing 48906 | (517) 482-5729 |
| Daily Heating & Air Cond Inc Lansing 48911 | (517) 882-2466 |
| Doty Mechanical 615 S Waverly Rd, Lansing 48917 | (517) 327-7777 |
| E H Ward Co 415 W Mount Hope Ave, Lansing 48910 | (517) 484-5489 |
| Postal Heating Lansing 48910 | (517) 927-2686 |
| Fay Lett & Sons Heating Inc 2217 W Main St, Lansing 48915 | (517) 371-4100 |