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These guides explain what typical projects cost, how to compare providers and how to check licensing in Tennessee.
Who licenses contractors and lawyers in Tennessee
| Trade | Licensed by | Verify |
|---|---|---|
| HVAC | Tennessee Board for Licensing Contractors (Department of Commerce & Insurance) | Check a license |
| Plumbing | Tennessee Board for Licensing Contractors (Department of Commerce & Insurance) | Check a license |
| Electrical | Tennessee Board for Licensing Contractors (Department of Commerce & Insurance) | Check a license |
| Roofing | Tennessee Board for Licensing Contractors (Department of Commerce & Insurance) | Check a license |
| General / home-improvement contracting | Tennessee Board for Licensing Contractors (Department of Commerce & Insurance) | Check a license |
| Attorneys | Board of Professional Responsibility of the Supreme Court of Tennessee | Check a license |
Compiled from each state agency's official site, checked November 15, 2026. Details and sources are on each trade page.
Local businesses by trade in Knox County
How many employer businesses each trade has locally, from the Census Bureau's County Business Patterns.
| Service | Census industry | Locations | Employees |
|---|---|---|---|
| HVAC & plumbing | Plumbing, heating and air-conditioning contractors | 169 | 2,791 |
| Electrical | Electrical contractors and other wiring installation contractors | 107 | 1,766 |
| Roofing | Roofing contractors | 34 | 361 |
| General Contracting | Residential remodelers | 156 | 911 |
| Landscaping | Landscaping services | 172 | 1,763 |
| Painting | Painting and wall covering contractors | 41 | 292 |
| Flooring | Flooring contractors | 23 | 123 |
| Pest Control | Exterminating and pest control services | 44 | 499 |
| Residential Cleaning | Janitorial services | 105 | 16,331 |
| Moving | Used household and office goods moving | 18 | 258 |
| Home Security | Security systems services (except locksmiths) | 18 | 973 |
| Auto Repair | General automotive repair | 109 | 747 |
| Pet Services | Pet care (except veterinary) services | 52 | 343 |
| Tutoring | Exam preparation and tutoring | 16 | 200 |
| Accounting | Offices of certified public accountants | 89 | 1,007 |
| Legal | Offices of lawyers | 242 | 1,483 |
| Mortgage | Mortgage and nonmortgage loan brokers | 12 | 54 |
| Digital Marketing | Advertising agencies | 23 | 597 |
| IT Services | Computer systems design services | 50 | 185 |
Source: U.S. Census Bureau, County Business Patterns 2023. Employer establishments only. Checked November 15, 2026.
Knoxville climate at a glance
Knoxville averages 3,528 heating degree days and 1,574 cooling degree days a year, with 51.9 inches of precipitation. That shapes HVAC sizing and roofing choices; see the HVAC and roofing pages for what it means.
Source: NOAA NCEI U.S. Climate Normals 1991-2020, station USW00013891. Checked November 15, 2026.
Local notes for Knoxville
Knoxville pages for each service. HVAC, plumbing, electrical, roofing, contracting and lawyer pages include the licensing body, permit office, local firm counts and wages, with sources.
AllCityPros is an independent information resource and does not endorse or rate specific businesses. Sample directory entries from an earlier version of this site are kept for reference and are not verified.