| Business | Phone |
| A & L Heating & Air Cond 5246 N 65th St, Milwaukee 53218 | (414) 442-4015 |
| A Able Brothers Po Box 270686, Milwaukee 53227 | (414) 328-3164 |
| A J Iverson Llc 3953 N 76th St # 2, Milwaukee 53222 | (414) 464-0570 |
| A-Ok Mechanical Milwaukee 53204 | (414) 587-9548 |
| Aaron's Heating & Air Cond 2539 S Brisbane Ave A, Milwaukee 53207 | (414) 483-1587 |
| Adamczyk Heating & Cooling 6019 W Bluemound Rd, Milwaukee 53213 | (414) 258-7880 |
| Advanced Energy Concepts Inc Milwaukee 53211 | (414) 963-2222 |
| All City Hvac 2015 S 73rd St, Milwaukee 53219 | (414) 899-4328 |
| All Climate Heating & Ac 3228 W American Dr, Milwaukee 53221 | (414) 281-8380 |
| Alpine Heating & Air Cond 4183 N Green Bay Ave, Milwaukee 53209 | (262) 375-8672 |
| American Heating & Cooling 5750 N 91st St, Milwaukee 53225 | (414) 444-6001 |
| Environmental Balance Inc 1224 S 11th St 4, Milwaukee 53204 | (414) 282-8535 |
| Andy Busalacchi Heating & Air 904 E Pearson St, Milwaukee 53202 | (414) 276-9594 |
| Antoniak's Heating & Air Cond 720 W Madison St, Milwaukee 53204 | (414) 383-8416 |
| Best Aire Svc Inc 2532 W Fond Du Lac Ave, Milwaukee 53206 | (414) 875-1406 |
| Bloedels Heating & Cooling Inc 2006 W Bender Rd, Milwaukee 53209 | (414) 352-9990 |
| Burkhardt Heating & Air Cond 1001 E Holt Ave, Milwaukee 53207 | (414) 481-9190 |
| Central Heating Svc Milwaukee 53227 | (414) 543-0820 |
| Comfort Zone Htg & Ac 7124 W Cody Cir, Milwaukee 53223 | (414) 358-1046 |
| Custom Electric & Refrig 4515 N 71st St, Milwaukee 53218 | (414) 461-7105 |
| E & R Heating & Cooling Milwaukee 53206 | (414) 202-5001 |
| Etc Heating & Air Cond 2533 N 111th St, Milwaukee 53226 | (414) 456-1722 |
| Goggins Heating & Air Cond 544 N 107th St, Milwaukee 53226 | (414) 453-6076 |
| Heinrichs Mechanical Corp 2471 S 73rd St, Milwaukee 53219 | (414) 531-2950 |
| Home Services-Southeastern Wi Milwaukee 53207 | (414) 482-1299 |
| Ideal Plumbing Heating & Ac 5635 W Douglas Ave, Milwaukee 53218 | (414) 358-2505 |
| Kga 5351 N 118th Ct, Milwaukee 53225 | (414) 535-1500 |
| Leonard Heating & Cooling Inc Milwaukee 53211 | (414) 333-0370 |
| Magnum Services Inc 2314 S Howell Ave, Milwaukee 53207 | (414) 744-4424 |
| Major Heating Cooling 11830 W Ripley Ave, Milwaukee 53226 | (414) 771-4400 |
| West Allis Heating & Air Cond 2264 S 72nd St, Milwaukee 53219 | (414) 543-2800 |
| Midwest Heating Co 3257 N 39th St, Milwaukee 53216 | (414) 871-1020 |
| Veterans Refrigeration Co 3121 W Layton Ave, Milwaukee 53221 | (414) 817-1873 |
| Trane-Milwaukee 11400 W Theodore Trecker Way, Milwaukee 53214 | (414) 266-5200 |
| Tri-Tech Heating & Air Cond W171n10316 Wildrose Ln, Milwaukee 53201 | (414) 581-7488 |
| Tempco Heating & Air Cond 5707 W National Ave, Milwaukee 53214 | (414) 771-5248 |
| Tempco Inc Heating & Air Cond 1155 W Jonathan Ln, Milwaukee 53217 | (414) 351-3400 |
| Tempco Inc Heating & Air Cond 4620 W Mill Rd, Milwaukee 53218 | (414) 353-0500 |
| Tempurature Design Inc Milwaukee 53202 | (414) 270-3500 |
| Tom's Dependable Htg & Cooling 3325 W Layton Ave, Milwaukee 53221 | (414) 282-3377 |
| Swift Heating & Cooling 6107 S 6th St 7, Milwaukee 53221 | (414) 258-7855 |
| Rudy Uttke & Sons Heating 4209 S Howell Ave, Milwaukee 53207 | (414) 483-2159 |
| Samsolar Energy Svc 2850 N Teutonia Ave, Milwaukee 53206 | (414) 372-9903 |
| R J Heating & A/C Llc 5102 W Westfield Rd, Milwaukee 53218 | (414) 463-1955 |
| Randy's Heating & A/C Milwaukee 53202 | (414) 765-4700 |
| Pro-Tech Mechanical 33 Yardley Ave, Milwaukee 53218 | (416) 751-6839 |