| Diaz Services Inc 21222 Negaunee St (248)352-5969 | E M Sergeant CO 455 Upton Ave (269) 962-8795 | Custom Heating & Cooling 44 Brownell St SE (616) 455-3660 |
| All-Star Heating & Cooling 230 E Division St (616) 887-1220 | Belle River Heating 2179 Berville Rd (810) 395-2912 | Barlow Heating & Cooling 845 Marsh Rd 2696852180 |
| Greencastle Heating & Cooling 102 Imperial St (269) 381-9790 | Parson's Heating & Cooling 25431 W Warren St (313) 581-4900 | Custom Climate Systems Inc 9146 Horseshoe Ct 7344249414 |
| North Macomb Heating & Cooling 465 E 32 Mile Rd (586)752-2200 | Ati Group 3419 Pierson Pl (810)230-6202 | Victor Plow 6211 Kies St NE (616)890-3560 |
| City Express Heating Cooling & Mechanical 4616 E 9 Mile Rd (586) 759-2009 | Galesburg Heating & Cooling PO Box 66 (269)665-9770 | A S Contrera 22841 Dequindre Rd (248) 284-8484 |
| Miracle Heating & Ac 1902 E Michigan Ave 7344801503 | Air Flow Heating & Cooling 3111 S Dort Hwy (810) 742-4600 | Warren Heating & Cooling 22280 John Deere Ln 5864692450 |
| B P H Mechanical Services 421 E Fairplains St (616) 754-9353 | Barney Heating 350 Elizabeth Dr (989) 725-9178 | Reliable Energy Systems Inc 18121 E 8 Mile Rd Ste 100 5867725310 |
| Air-master Heating & Air Cond 3155 Bermuda St 2483991800 | Jacobson Heating & Air Cond 201 E Breitung Ave 9067745128 | Proctors Heating & A/C 87 S Straits Hwy (231) 238-8693 |
| Comfort Craft Construction CO 1340 E 11 Mile Rd (248) 546-5555 | BEHR Systems 3001 Miller Rd (313) 336-0762 | Bel-aire Heating & Air Cond 1435 Century Ave Sw 6164529676 |
| Matthews Heating & Air 9020 Red Arrow Hwy (269) 463-8515 | Kronewitter Mechanical Inc 35 Division St (616) 642-9971 | Ann Arbor Door Systems Inc 2200 South Industrial Highway Suite E (734)663-0033 |
| Duck D E Heating & Cooling 21825 Mason Street (616)699-5237 | Sahara Midwest CO 13428 Iroquois Woods Dr (810) 629-0526 | Ark Mechanical 5651 Penn Lock Colony Rd (231) 276-6685 |
| Al Walters Htg & A/C Inc 4 Water St (734) 482-8301 | Professional Temperature Heating & Air Cndtnng Inc 2148 Baldwin Rd (810) 667-3765 | Best Heating & Air Cond Inc PO Box 426 (906)774-2059 |
| Hearthside Heating Inc 30207 John R Rd 2485855452 | Ventilation Systems Inc PO Box 287 (248)926-0980 | Bruce M Johnson Plumbing Inc Po Box 188 8106644851 |