Colorado HVAC license lookup: how to check and get a license
Colorado HVAC license lookup: who issues HVAC contractor licenses (local (city/county) - no state HVAC license; e.g. Denver Community Planning and Development contractor licensing), how to check one online, the license types, and 2,603 plumbing, heating and air-conditioning contractors by county.
Do HVAC contractors need a license in Colorado?
| Who licenses them | local (city/county) - no state HVAC license; e.g. Denver Community Planning and Development contractor licensing |
|---|---|
| When a license is required | Unknown (set locally) |
Colorado has no statewide HVAC license; cities such as Denver require a local contractor license backed by a supervisor certificate, and the electrical and gas-piping parts of a job fall under state electrical/plumbing licensing. Refrigerant work requires federal EPA Section 608 certification.
How do you look up an HVAC contractor's license in Colorado?
- Ask the HVAC contractor for the license number and the exact business name on the license.
- Open the official local (city/county) - no state HVAC license; e.g. Denver Community Planning and Development contractor licensing license search run by local (city/county) - no state HVAC license; e.g. Denver Community Planning and Development contractor licensing.
- 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) - no state HVAC license; e.g. Denver Community Planning and Development contractor licensing.
How do you get a HVAC license in Colorado?
Licenses are issued by the local (city/county) - no state HVAC license; e.g. Denver Community Planning and Development contractor licensing. Requirements such as experience, exams, insurance and fees change, so read the current rules on the official local (city/county) - no state HVAC license; e.g. Denver Community Planning and Development contractor licensing source before you apply. Already licensed? List your business on Expert Helper to get matched with customers.
How many HVAC contractors are there in Colorado?
The Census Bureau counted 2,603 plumbing, heating and air-conditioning contractors with employees in Colorado in 2023. The counties with the most:
| Jefferson County | 316 |
|---|---|
| Adams County | 268 |
| El Paso County | 260 |
| Arapahoe County | 251 |
| Larimer County | 185 |
| Denver County | 159 |
| Weld County | 149 |
| Douglas County | 122 |
What do Colorado homes mean for heating and cooling work?
The median home in Colorado was built in 1987, 34% of households rent and 69% of homes are single-family houses. 67% of homes heat with utility gas and 25% with electricity.
How do you choose an HVAC contractor in Colorado?
- 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: Colorado licensing agency (linked above); US Census Bureau County Business Patterns 2023 and ACS 2023 5-year estimates.