| Business | Phone |
| Maloney Aire 128 Lafayette Ave, Laurel 20707 | (301) 953-3117 |
| Cool-Rite Svc Co 10705 Johns Hopkins Rd, Laurel 20723 | (301) 953-2070 |
| Minnick's Inc 5200 Minnick Rd, Laurel 20707 | (301) 953-2820 |
| R C Heating & Cooling Co 9501 Mellow Ct, Laurel 20723 | (301) 490-2431 |
| Rowan Heating & Air Cond 9125 Bursa Rd # A, Laurel 20723 | (301) 604-2444 |
| A & W Heating & Air Cond 1109 Beall Pl, Laurel 20707 | (301) 725-0989 |
| All Season Controls Inc 14300 Cherry Lane Ct # 104, Laurel 20707 | (240) 456-0863 |
| American Mechanical Svc Inc 8039 Laurel Lakes Ct, Laurel 20707 | (301) 206-5070 |
| Sovereign Service 1105 Montgomery St, Laurel 20707 | (301) 490-9500 |
| Byrdaire Inc 16904 Supplee Ln, Laurel 20707 | (301) 604-4822 |
| Tnp Air Conditioning 6002 Windham Rd, Laurel 20707 | (301) 221-1122 |
| Corsair Heating & Air Cond Laurel 20707 | (301) 490-4467 |
| Cox Air Cond & Electric 15403 Bauer Ln, Laurel 20707 | (301) 953-2676 |
| Csi Mechanical Inc 14223 Cherry Lane Ct, Laurel 20707 | (301) 206-2067 |
| Engineering Equipment Sales 9101 Cherry Ln # 112, Laurel 20708 | (301) 369-9413 |
| Havtech Laurel 20707 | (301) 497-9610 |
| Havtech Baltimore 6100 Chevy Chase Dr # 104, Laurel 20707 | (301) 206-9225 |