| Business | Phone |
| Aci Heating & Cooling Spokane 99207 | (509) 482-2000 |
| Jerry's Plumbing Spokane 99205 | (509) 327-3769 |
| American Standard Central Air 6011 E 9th Ave, Spokane 99212 | (509) 458-4183 |
| Howard Fleming Plumbing 209 S Washington St, Spokane 99201 | (509) 993-2808 |
| Clemens Mechanical Plumbing 5227 N Myrtle St, Spokane 99217 | (509) 484-8258 |
| Gold Seal Mechanical 5524 E Boone Ave, Spokane 99212 | (509) 928-7400 |
| Keller Heating Inc 11607 1/2 E Trent Ave, Spokane 99206 | (509) 926-3551 |
| Paulson Plumbing & Heating 3410 S Fancher Rd, Spokane 99223 | (509) 533-5400 |
| Roto-Rooter Plumbing & Drain 1502 E Holyoke Ave, Spokane 99217 | (509) 535-0286 |
| Simioni's Warm Floors 3402 S Bates Rd, Spokane 99206 | (509) 893-0040 |
| Spokane Comfort Systems 1403 N Greene St 3, Spokane 99202 | (509) 324-7884 |
| Atta-Boy Plumbing Spokane 99201 | (509) 270-1114 |
| Radiant Systems Co 608 1/2 N Maple St, Spokane 99201 | (509) 456-2066 |
| Starlight Romance Spokane 99201 | (509) 624-8032 |
| Atlas Boiler & Equipment Co 3815 E Trent Ave, Spokane 99202 | (509) 489-5448 |
| Smk Svc Spokane 99202 | (509) 532-2190 |
| Gold Seal Mechanical Warehouse 5524 E Boone Ave, Spokane 99212 | (509) 535-5944 |
| Roto-Rooter Plumbing & Drain 6214 E Alki Ave, Spokane 99212 | (509) 684-5264 |
| Acme Plumbing 13021 E Sprague Ave, Spokane 99216 | (509) 928-8518 |