| Business | Phone |
| A & C Heat & Air 4504 Shane Ln, Knoxville 37921 | (865) 237-2054 |
| A A Air Co 1001 Katherine Ave, Knoxville 37921 | (865) 689-5290 |
| A C Care Heat & Air Knoxville 37917 | (865) 524-8092 |
| A-1 Finchum Heating & Cooling Knoxville 37923 | (865) 690-8492 |
| Aaa All Phase Heating 27531 Westland Dr, Knoxville 37917 | (865) 455-1376 |
| Admiral Heating & Air Cond Inc Knoxville 37932 | (865) 966-8890 |
| Advance Heating & Air 8611 Whitlock Ln, Knoxville 37924 | (865) 933-5538 |
| Advanced Heating & Air Knoxville 37922 | (865) 250-9739 |
| Air Comfort Co 2317 Johnston St, Knoxville 37921 | (865) 971-4871 |
| Air Crafters Heating 11107 Hatteras Dr, Knoxville 37934 | (865) 898-1580 |
| Air Masters Heating & Cooling 12453 Cuttermilk Rd, Knoxville 37932 | (865) 212-2374 |
| Air Masters Heating Llc 12453 Buttermilk Rd, Knoxville 37932 | (865) 694-0530 |
| Air Pro Inc 8905 Kingston Pike # 12-223, Knoxville 37923 | (865) 692-8400 |
| Weather Doctor Htg & Ac Svc 8922 Bluegrass Rd, Knoxville 37922 | (865) 693-2936 |
| West End Heat & Air 2021 Tooles Bend Rd, Knoxville 37922 | (865) 690-5968 |
| Worsham Service Co 2311 N Central St, Knoxville 37917 | (865) 544-0011 |
| Xtreme Heating & Air Inc Po Box 6067, Knoxville 37914 | (865) 604-9911 |
| American Refrigeration Sales 317 King St, Knoxville 37917 | (865) 546-7869 |
| Archer Air Cond Svc Co Inc 2710 Bond St, Knoxville 37917 | (865) 525-6244 |
| Vasey Heating & Air Cond Inc 214 N Watt Rd, Knoxville 37934 | (865) 966-5155 |
| Associated Equipment Co Inc 2009 Dutch Valley Dr, Knoxville 37918 | (865) 689-2600 |
| B & B Enterprises 3305 Rifle Range Rd, Knoxville 37918 | (865) 687-2971 |
| Titan Mechanical Inc 3400 Division St, Knoxville 37919 | (865) 523-0024 |
| Titan Mechanical Inc 448 N Cedar Bluff Rd # 183, Knoxville 37923 | (865) 523-0024 |
| Tobler Air Conditioning Svc 1721 Nighbert Ln, Knoxville 37922 | (865) 966-6520 |
| Trane Co 5220 Middlebrook Pike S, Knoxville 37921 | (865) 588-0607 |
| Treadway Brothers Refrig Htg 2501 Maloney Rd, Knoxville 37920 | (865) 577-9000 |
| Ultra-Tech 5618 Wallwood Rd, Knoxville 37912 | (865) 689-2323 |
| Bestway Heating & Air Cond 8217 Rogers Ln, Knoxville 37920 | (865) 660-5550 |
| Black & Snyder Heating & Ac 4638 Ball Camp Pike, Knoxville 37921 | (865) 525-1084 |
| Bud Lewis Heating & Air Cond 4305 Valley View Dr, Knoxville 37917 | (865) 637-9823 |
| Technical Air & Electric 3216 Nw Park Dr, Knoxville 37921 | (865) 938-3569 |
| Tempco Heating & Ac Co Inc 2647 Saint James Ave, Knoxville 37920 | (865) 579-5784 |
| Tennessee Fire & Safety Mech 810 E Magnolia Ave, Knoxville 37917 | (865) 525-3167 |
| Tennessee Temperature Heating 1017 Fair Dr, Knoxville 37912 | (865) 688-8009 |
| Tennessee Valley Air Cndtng 10402 Lexington Dr, Knoxville 37932 | (865) 671-2900 |
| Shoffner Service Co Inc 3600 Papermill Dr, Knoxville 37909 | (865) 521-6948 |
| Smith & Assoc Heating Air Cond 1217 Mckenzie Pl, Knoxville 37917 | (865) 546-1476 |
| City Heating & Air Knoxville 37912 | (865) 938-1005 |
| City Heating & Air Cond 5502 Middlebrook Pike, Knoxville 37921 | (865) 573-7929 |
| C & C Mechanical Inc 4401 Deerfield Rd, Knoxville 37921 | (865) 909-9353 |
| Campus City Co 3042 Central Ave Pike, Knoxville 37919 | (865) 524-7237 |
| Cantrell's Heat & Air Llc 1328 Karnes Ave, Knoxville 37917 | (865) 687-2520 |
| Carrier Building Systems & Svc 507 S Gay St, Knoxville 37902 | (865) 633-8963 |
| Comfort Heating & Air 4621 Marshall Dr, Knoxville 37918 | (865) 925-8233 |
| Comfort Tech 3332 Mccurry Rd, Knoxville 37924 | (865) 932-1024 |
| Compass Heating & Air Cond Inc 3042 N Central St, Knoxville 37917 | (865) 524-7237 |
| Cook's Air Conditioning & Htg 130 Perimeter Park Rd # A, Knoxville 37922 | (865) 539-2665 |
| Ron Ron Heat & Air 3235 Joyce Ave, Knoxville 37921 | (865) 556-6758 |
| Rutledge Heating & Air Cond 5827 Fort Sumter Rd, Knoxville 37938 | (865) 922-4809 |
| Dale Supply Co 11156 Outlet Dr, Knoxville 37932 | (865) 966-3153 |
| Dealers Appliance Svc Co 2401 N Central St, Knoxville 37917 | (865) 637-4671 |
| Delta Heating & Air Cond 11509 Foxford Dr, Knoxville 37934 | (865) 966-6455 |
| Ptac4 Less 820 N Broadway St # B, Knoxville 37917 | (865) 546-2255 |
| Quality Service Co Knoxville 37917 | (865) 659-9494 |
| R E Michel Co 5418 Middlebrook Pike, Knoxville 37921 | (865) 330-0203 |
| E R Hall Heating & Cooling Po Box 51088, Knoxville 37950 | (865) 483-7477 |
| Elite Heating & Cooling 5729 Kentwood Rd, Knoxville 37912 | (865) 539-1268 |
| Pioneer Heating & Air Cond 4604 Mill Branch Ln, Knoxville 37938 | (865) 922-2817 |
| Father & Son Central Systems 924 Millington Park Way, Knoxville 37909 | (865) 670-0890 |
| Ferguson Mechanical 5317 Carter Rd, Knoxville 37918 | (865) 689-1100 |
| First Call Mechanical Knoxville 37919 | (865) 558-8632 |
| Norman Heating & Air 2170 Hines Vly, Knoxville 37922 | (865) 531-1029 |
| Partners Supply Inc 3201 Henson Rd, Knoxville 37921 | (865) 588-2776 |
| Four Seasons Comfort 2109 Dutch Valley Dr, Knoxville 37918 | (865) 219-9886 |
| G E Mann Heating Air Cond Inc Po Box 23038, Knoxville 37933 | (865) 966-5070 |
| Ge-Ac 312 Commerce, Knoxville 37923 | (865) 690-3272 |
| General Air Svc 1108 Olive Rd, Knoxville 37934 | (865) 966-9889 |
| Gilliam Heating & Air Cond 2524 Bernhurst Dr, Knoxville 37918 | (865) 688-4723 |
| Moore Heating & Air Cond 1100 Tarwater Rd, Knoxville 37920 | (865) 573-8333 |
| Neilson Heating & Air Cond 7616 Chapman Hwy, Knoxville 37920 | (865) 573-9886 |
| Goddard Heating & Air Cond 1125 Tarwater Rd, Knoxville 37920 | (865) 573-9505 |
| Greg Atchley Heating & Air 331 Burris Rd, Knoxville 37924 | (865) 933-7941 |
| Gwyn Sales Inc 333 Troy Cir # W, Knoxville 37919 | (865) 588-3147 |
| Harold Gutridge Appliance Svc 412 Oglewood Ave, Knoxville 37917 | (865) 546-5030 |
| Mechanical Doctor Heating 9112 Montague Dr, Knoxville 37923 | (865) 679-2054 |
| Harris & Swicegood Inc Heat 10323 Starkey Ln, Knoxville 37932 | (865) 675-6755 |
| Helms Heating & Air Cond 1020 Atlantic Ave, Knoxville 37917 | (865) 406-7352 |
| Herrell's Heating & Air Cond 2438 Dodson Ave, Knoxville 37917 | (865) 523-9543 |
| Higginbotham's Residential 1700 Branner St, Knoxville 37917 | (865) 637-2770 |
| Home Climate Systems 308 Woodland Trace Dr, Knoxville 37934 | (865) 690-1673 |
| Lawsons A/C Heat & Svc Cedar Bluff Rd, Knoxville 37923 | (865) 694-6903 |
| Lawsons Air Conditioning & Htg Campbell Station Rd, Knoxville 37932 | (865) 675-6644 |
| Lewis Heating & Air Cond 625 Bays Mountain Rd, Knoxville 37920 | (865) 577-5631 |
| M & A Supply Co Inc 1540 Amherst Rd # A, Knoxville 37909 | (865) 584-0510 |
| Maintenance Technologies Inc 3500 Seasonal Way, Knoxville 37909 | (865) 584-1776 |
| Igloo Knoxville 37918 | (865) 689-1121 |
| J & T Heating & Air Cond 1125 1/2 Adcock Ave, Knoxville 37921 | (865) 546-7402 |
| J & T Heating & Air Cond 6417 Trailhead Cir, Knoxville 37920 | (865) 579-4979 |
| J L Blevins Co 10737 Sallings Rd, Knoxville 37922 | (865) 966-9273 |
| J Skiles Heating & Cooling Knoxville 37923 | (865) 690-8667 |
| Jacs Mechanical Svc Inc 3101 Shanks Ln, Knoxville 37938 | (865) 925-2524 |
| Jake Marshall Svc 413 Ambrose St, Knoxville 37921 | (865) 522-1131 |
| L & L Heating & Air Condition 111 Hobbs Rd, Knoxville 37934 | (865) 966-9607 |
| Jns Mechanical 805 Widgeon Ln, Knoxville 37934 | (865) 769-0934 |
| John H Coleman Co 814 State St, Knoxville 37902 | (865) 453-1120 |
| Kbm 3511 Overlook Cir, Knoxville 37909 | (865) 584-3077 |
| Knox-Area Plbg Htg Cooling Inc 5851 Rutledge Pike, Knoxville 37924 | (865) 546-3563 |