Louisiana HVAC license lookup: how to check and get a license
Louisiana HVAC license lookup: who issues HVAC contractor licenses (LSLBC), how to check one online, the license types, and 1,612 plumbing, heating and air-conditioning contractors by county.
Do HVAC contractors need a license in Louisiana?
| Who licenses them | Louisiana State Licensing Board for Contractors (LSLBC) (Mechanical Work classification) |
|---|---|
| License types | Mechanical Work (Statewide) classification |
| When a license is required | LSLBC license required for mechanical projects exceeding $10,000 including labor and materials (commercial); residential threshold not confirmed |
HVAC contracting is licensed by LSLBC under the mechanical category; local permits apply. Refrigerant work also requires federal EPA Section 608 certification.
How do you look up an HVAC contractor's license in Louisiana?
- Ask the HVAC contractor for the license number and the exact business name on the license.
- Open the Louisiana HVAC license lookup run by LSLBC.
- Search by license number first. A name search can return several people or companies with similar names.
- Check that the status is active or current, that the license type covers your job, and that the name matches the company on your contract.
- If something doesn't match, ask the HVAC contractor about it before you sign or pay a deposit, or contact LSLBC.
What HVAC licenses does Louisiana issue?
- Mechanical Work (Statewide) classification
How do you get a HVAC license in Louisiana?
Licenses are issued by the Louisiana State Licensing Board for Contractors (LSLBC) (Mechanical Work classification). Requirements such as experience, exams, insurance and fees change, so read the current rules on the official LSLBC source before you apply. Already licensed? List your business on Expert Helper to get matched with customers.
How many HVAC contractors are there in Louisiana?
The Census Bureau counted 1,612 plumbing, heating and air-conditioning contractors with employees in Louisiana in 2023. The counties with the most:
| Jefferson Parish | 240 |
|---|---|
| St. Tammany Parish | 146 |
| East Baton Rouge Parish | 137 |
| Lafayette Parish | 112 |
| Caddo Parish | 94 |
| Calcasieu Parish | 77 |
| Livingston Parish | 69 |
| Ouachita Parish | 53 |
What do Louisiana homes mean for heating and cooling work?
The median home in Louisiana was built in 1982, 33% of households rent and 68% of homes are single-family houses. 32% of homes heat with utility gas and 65% with electricity.
How do you choose an HVAC contractor in Louisiana?
- Check the state or local mechanical or HVAC license, and ask whether the technicians hold EPA 608 certification for refrigerant work.
- For a new system, ask for a load calculation (often called Manual J) rather than a size picked from square footage.
- Ask which rebates and tax credits apply to heat pumps and high-efficiency equipment, and whether the contractor files the paperwork.
- Compare quotes on the same equipment model numbers and efficiency ratings (SEER2, HSPF2, AFUE).
- Ask what the labor warranty covers, separately from the manufacturer's parts warranty.
HVAC Contractors in other states
Sources: Louisiana licensing agency (linked above); US Census Bureau County Business Patterns 2023 and ACS 2023 5-year estimates.