Missouri HVAC license lookup: how to check and get a license
Missouri HVAC license lookup: who issues HVAC contractor licenses (local (city/county); Missouri has no state HVAC license (e.g., City of St. Louis Mechanical Contractors Board of Examiners)), how to check one online, the license types, and 1,886 plumbing, heating and air-conditioning contractors by county.
Do HVAC contractors need a license in Missouri?
| Who licenses them | local (city/county); Missouri has no state HVAC license (e.g., City of St. Louis Mechanical Contractors Board of Examiners) |
|---|
HVAC/mechanical contractors in Missouri are licensed locally where a city or county requires it, such as the City of St. Louis. Refrigerant work also requires federal EPA Section 608 certification.
How do you look up an HVAC contractor's license in Missouri?
- Ask the HVAC contractor for the license number and the exact business name on the license.
- Open the official local (city/county); Missouri has no state HVAC license (e.g., City of St. Louis Mechanical Contractors Board of Examiners) license search run by local (city/county); Missouri has no state HVAC license (e.g., City of St. Louis Mechanical Contractors Board of Examiners).
- 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 local (city/county); Missouri has no state HVAC license (e.g., City of St. Louis Mechanical Contractors Board of Examiners).
How do you get a HVAC license in Missouri?
Licenses are issued by the local (city/county); Missouri has no state HVAC license (e.g., City of St. Louis Mechanical Contractors Board of Examiners). Requirements such as experience, exams, insurance and fees change, so read the current rules on the official local (city/county); Missouri has no state HVAC license (e.g., City of St. Louis Mechanical Contractors Board of Examiners) source before you apply. Already licensed? List your business on Expert Helper to get matched with customers.
Which Missouri city is the job in?
How many HVAC contractors are there in Missouri?
The Census Bureau counted 1,886 plumbing, heating and air-conditioning contractors with employees in Missouri in 2023. The counties with the most:
| St. Louis County | 265 |
|---|---|
| Jackson County | 193 |
| St. Charles County | 105 |
| Greene County | 97 |
| Jefferson County | 85 |
| Clay County | 73 |
| Boone County | 64 |
| St. Louis city | 58 |
What do Missouri homes mean for heating and cooling work?
The median home in Missouri was built in 1978, 32% of households rent and 74% of homes are single-family houses. 50% of homes heat with utility gas and 38% with electricity.
How do you choose an HVAC contractor in Missouri?
- 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: Missouri licensing agency (linked above); US Census Bureau County Business Patterns 2023 and ACS 2023 5-year estimates.