Tennessee contractor license types explained.

Why this matters.

Tennessee organizes contractor licenses into classifications based on the type of work you'll do. A general residential builder, a commercial electrician, and a roofing specialist all need different licenses. Apply for the wrong one and you've paid for an exam that doesn't match your work and a license that doesn't let you bid the jobs you want.

The board for licensing contractors lists roughly two dozen classifications. Here are the ones most applicants need to know about.

BC: Building Contractor

The broadest license. Authorizes you to do general contracting work on residential, commercial, and industrial projects. Subdivides into several sub-classifications.

BC-A: Residential and small commercial. Single family homes, duplexes, small commercial buildings. The most common license for builders working in the residential and light commercial space. This is what Kelly holds.

BC-B: Commercial. Larger commercial buildings, retail, office space, light industrial.

BC: Full general. No size or type restriction, but requires demonstrated experience and a strong financial statement.

Best for: Contractors who plan to act as the primary contractor on projects, hiring subs and managing the whole build.

Cost and difficulty: Highest of the contractor licenses. Two exams (Business and Law plus the BC Trade exam). Reviewed CPA financial statement typically required.

RB: Residential Builder

Authorizes residential construction only. Cannot do commercial, industrial, or institutional work.

Three subclasses based on home size: small, medium, large. Each tier requires more experience and higher financial limits.

Best for: Builders focused exclusively on residential work who don't anticipate moving into commercial.

Cost and difficulty: Lower than BC. Slightly easier trade exam, same business and law exam.

Limited Residential

For contractors doing residential work below certain monetary limits. Cheaper to obtain than RB but with project size caps.

Best for: Smaller scale builders who don't need to bid large new construction projects.

Cost and difficulty: Lowest cost among the residential-focused options.

Home Improvement Contractor

For remodels, renovations, additions, and repairs. NOT for new construction.

Required for any residential remodeling or renovation project totaling $3,000 or more (with some exceptions). Lower threshold than the $25,000 trigger for general contractor licensing.

Best for: Contractors focused on remodels, kitchen and bath renovations, additions, and similar work.

Cost and difficulty: One exam, less paperwork than general contractor licensing, but limited scope.

Specialty classifications.

For contractors focused on a single trade. Each has its own dedicated trade exam.

CMC: Mechanical contractor. HVAC, plumbing, piping, refrigeration.

CE: Electrical contractor. All electrical work.

CMA: Masonry contractor. Brick, block, stone work.

S-CON: Concrete contractor. Concrete work, foundations, flatwork.

S-CGC: Custom glass contractor. Specialty glass installation.

S-RF: Roofing contractor. Residential and commercial roofing.

S-PT: Painting contractor. Interior and exterior painting.

And many more. If you only do one trade, a specialty license is usually faster and cheaper to obtain than a full general contractor license.

Best for: Contractors who specialize in one trade and don't need to act as a general contractor.

Cost and difficulty: Varies widely. Generally lower cost than BC, with trade exams specific to the specialty.

How to pick the right one.

Three questions answer most of this.

What kind of work do you actually do? If you do everything, you need a BC. If you only do residential, RB or Limited Residential. If you only do one trade, specialty.

What's your project size range? A roofer doing $50,000 commercial reroofs needs a different license than a roofer doing $5,000 residential touch-ups. The monetary limit on your financial statement has to match.

Where do you want to be in three years? If you're a specialty contractor today but plan to move into general contracting, getting the BC now (even though it's harder) saves you from going through the whole process again.

Common mistakes.

Getting BC when specialty would have been fine. If you only do electrical work, you don't need the broader BC license. The BC exam is harder and the financial statement requirements are stricter.

Getting Home Improvement when you actually do new construction. Home Improvement does not authorize new construction. If you build new homes or additions that include new structure, you need RB or BC.

Getting Limited Residential and then growing. If you're confident you'll be doing larger residential projects within a year, get RB now. Going from Limited Residential to RB later means more paperwork and another exam.

The verification step.

Before you commit to a classification, verify with the Tennessee Board for Licensing Contractors that your interpretation of the rules is correct. Their staff is generally helpful and will tell you which classification fits your specific situation. Call them at (615) 741-8307 or visit their website.

The single most expensive mistake in this whole process is paying for the wrong license, so a 10 minute phone call to confirm is well worth your time.