🎓 HVAC apprenticeships by state

HVAC Apprenticeships in Colorado: Programs, Requirements and How to Apply

Founder, HVACHires
Last verified September 2026

Getting an HVAC apprenticeship in Colorado starts with a sponsor, not a state license: our research did not confirm a statewide HVAC license — the HVAC credentials we did confirm are local, like Denver's own certificates.

Colorado is a State Apprenticeship Agency state, and the UA's directory lists four locals — Local 3 Denver (Aurora), Local 58 Colorado Springs, Local 145 Grand Junction and Local 208 Denver.

In Denver, heating and ventilating field installation experience gained in an apprenticeship counts toward the city's Heating and Ventilating Journeyman certificate.

Verify before you rely on this

Licensing rules change by statute, board rule and local ordinance, and this page is career information, not legal advice. Confirm every requirement with the licensing board (or, where licensing is local, the city or county) before you apply, schedule an exam, count hours or bid a job. In Colorado, that is the Colorado State Apprenticeship Agency (SAA), recognized by the U.S. Department of Labor.

At a glance

Apprenticeship agency

Colorado is a State Apprenticeship Agency (SAA) state on the U.S. Department of Labor's list; our research did not confirm which Colorado body acts as the SAA, so ask apprenticeship.gov or the state before you enroll.

Apprentice registration

No statewide HVAC registration in our research: we did not confirm a statewide HVAC license in Colorado, and the HVAC credentials we did confirm are local, like Denver's mechanical certificates.

The apprentice registration requirement our research found is on the plumbing side (State Plumbing Board).

Union programs

The UA's directory lists four Colorado locals: Local 3 Denver (Aurora), Local 58 Colorado Springs, Local 145 Grand Junction and Local 208 Denver; SMART Sheet Metal Local 9 (a separate trade) is in Denver.

Merit-shop programs

Not established in our research which Colorado PHCC, ABC, ACCA or employer programs sponsor registered HVAC apprenticeships — ask the sponsor and confirm the program's registration.

Hours toward a license

Denver's Heating and Ventilating Journeyman certificate requires four years (minimum 7,000 hours) of heating and ventilating field installation experience gained in an apprenticeship or on-the-job training, plus ICC exam F31.

No statewide HVAC license was confirmed in our research.

Where to start

Ask the UA locals what they currently register, check any other program's registration, and if Denver is your market, keep records of your hours: the city's journeyman certificate requires heating and ventilating field installation experience gained in an apprenticeship or on-the-job training.

Who offers HVAC apprenticeships in Colorado?

Registered apprenticeship programs are registered either by the U.S. Department of Labor's Office of Apprenticeship, through its state field offices where no recognized State Apprenticeship Agency exists, or by a recognized State Apprenticeship Agency acting for DOL.

Colorado sits on the SAA side of that split: it is on DOL's list of SAA states.

The union presence our research confirms in Colorado comes from the national directories: the UA's find-a-local directory lists Local 3 Denver (Aurora), Local 58 Colorado Springs, Local 145 Grand Junction and Local 208 Denver, and SMART Sheet Metal Local 9 is based in Denver.

Beyond those directories, our research did not confirm which Colorado employers, association chapters or community colleges sponsor registered HVAC apprenticeships, so treat this page as a starting point and ask each sponsor directly.

Do Colorado apprentices need to register or hold a license?

📜 40 CFR 82.161

Our research did not find a statewide HVAC technician or contractor license in Colorado, and it found no state HVAC board to register with; confirm the rules with your city or county.

The apprentice registration requirement our research found sits on the plumbing side: anyone employed in the plumbing trade who is not a licensed plumber must be registered as a plumbing apprentice with the State Plumbing Board until licensed.

What Denver issues is the closest thing to an HVAC credential our research confirms: its Heating and Ventilating Journeyman certificate can only be used while employed by a Heating and Ventilating Contractor Class A or an HVAC contractor.

Denver also issues Refrigeration Journeyman, Refrigeration Class A and Class B (residential, 5 tons or less) Supervisor, Refrigeration Operator and Gas Service Journeyman certificates; the city's supervisor certificates renew every three years.

A federal rule can reach any Colorado HVAC apprentice: work that could breach a refrigerant circuit — maintaining, servicing, repairing or disposing of appliances with CFC/HCFC or non-exempt substitute refrigerants — requires EPA 608 certification, and apprentices are exempt only while closely and continually supervised by a certified technician.

“Apprentices are exempt from the requirement in paragraph (a)(1) of this section provided the apprentice is closely and continually supervised by a certified technician”

Which union programs and locals run HVAC apprenticeships in Colorado?

The United Association's find-a-local directory lists four UA locals in Colorado: Local 3 Denver (Aurora), Local 58 Colorado Springs, Local 145 Grand Junction and Local 208 Denver.

Nationally, the UA describes its apprenticeships as registered with the U.S. Department of Labor, typically five years long, and covering plumbing, pipefitting, HVACR, welding and fire protection.

That is the UA's national description: our research confirmed the Colorado locals from the directory, not each local's current program details, entry standards or application dates, so ask the local — or its Joint Apprenticeship Committee, where it has one — what it registers and when it takes applications.

SMART Sheet Metal Local 9 is also based in Denver; sheet metal is a separate trade with its own registered apprenticeships, and the International Training Institute for the trade — jointly sponsored by SMART and the contractors' group SMACNA — reports more than 14,000 registered apprentices in the US and Canada, with programs running four or five years.

Are there merit-shop or employer HVAC apprenticeship programs in Colorado?

Our research did not verify a registered HVAC apprenticeship sponsored by a Colorado chapter of the national merit-shop associations, so treat them as places to ask rather than options we have confirmed.

The national associations exist and say this about themselves: Associated Builders and Contractors describes itself as founded on the merit shop philosophy and reports more than 24,000 members; PHCC, the Plumbing-Heating-Cooling Contractors Association, offers apprenticeship content through an online learning academy, and its Educational Foundation is an EPA-approved 608 certifying program; ACCA reports 60,000 professionals and more than 3,000 company members and is also an EPA-approved 608 certifying program, though our research found no ACCA registered apprenticeship — a gap in the research, not a verified negative.

Employer-based registered programs sit on this side too, and whatever the sponsor, registration runs through the same split: the State Apprenticeship Agency acting for DOL where a state has one.

Our research found no Colorado rule requiring a formal program for HVAC work; the apprentice registration rule we did find binds the plumbing trade.

Where do Colorado HVAC apprentices get classroom instruction?

The classroom side of a registered apprenticeship is related technical instruction.

Federally, the Department of Labor recommends — but does not require — a minimum of 144 hours of it per year of apprenticeship, and a program's terms may be time-based (at least 2,000 hours of on-the-job learning), competency-based, or a hybrid of both.

Our research did not confirm which Colorado community colleges, trade schools or union training centers deliver HVAC related instruction, so ask each sponsor where its apprentices take class and how the hours are documented before you enroll.

Our research also found no statewide hour-credit table to point to, since it did not confirm a statewide HVAC license.

The local example is Denver: its Heating and Ventilating Journeyman certificate requires heating and ventilating field installation experience — four years, minimum 7,000 hours — gained in an apprenticeship or on-the-job training, alongside the ICC exam, so whichever route you take there, keep records of your hours.

How do you apply for an HVAC apprenticeship in Colorado?

There is no state application to file in our research, so you apply to the sponsor: ask the UA locals our research confirms what they currently register, and ask any merit-shop chapter or employer program to confirm its registration.

Federally, a registered apprentice must be at least 16 unless a higher minimum age is set by law; there is no federal maximum age, and federal rules bar discrimination against apprentices and applicants aged 40 or older, though a sponsor may set its own qualifications on top.

Pay follows a progressively increasing schedule tied to skill, the entry wage may not fall below the FLSA minimum wage where it applies, and the probationary period cannot exceed 25 percent of the program length or 1 year, whichever is shorter.

Completing a registered apprenticeship earns a completion certificate from the registration agency — it is not a license.

In Denver, the Heating and Ventilating Journeyman certificate requires four years (minimum 7,000 hours) of heating and ventilating field installation experience in an apprenticeship or on-the-job training, plus ICC exam F31 — keep records of your hours.

Our guide to how to get an HVAC apprenticeship covers the search and the application itself.

What This Page Does, and Doesn’t, Cover

This page summarizes the Colorado board pages, statutes, rules and other sources listed below, as read for this state-by-state HVAC apprenticeships series, current as of September 2026.

It is not a substitute for the instructions the Colorado State Apprenticeship Agency (SAA), recognized by the U.S. Department of Labor publishes.

For the rest of the picture in Colorado, see HVAC licensing in Colorado and plumbing apprenticeships in Colorado.

Frequently Asked Questions

Do you need a license to be an HVAC apprentice in Colorado?

Our research did not confirm a statewide HVAC license in Colorado, or a state registration for an HVAC apprentice to hold — the HVAC credentials we did confirm are local, like Denver's mechanical certificates.

The apprentice registration requirement our research found is on the plumbing side: unlicensed plumbing workers must register with the State Plumbing Board until licensed.

One federal rule does reach HVAC apprentices: anyone who could breach a refrigerant circuit while maintaining, servicing, repairing or disposing of appliances with regulated refrigerants must hold EPA 608 certification, and apprentices are exempt only while closely and continually supervised by a certified technician.

Is there an HVAC apprenticeship in Denver?

The UA's directory lists two locals under Denver: Local 3 Denver (Aurora) and Local 208 Denver, and SMART Sheet Metal Local 9 is based there too, though sheet metal is a separate trade.

A directory listing confirms the local, not its current program details, so contact each local — or its Joint Apprenticeship Committee, where it has one — about entry standards and application dates.

On the credential side, Denver's own Heating and Ventilating Journeyman certificate requires heating and ventilating field installation experience gained in an apprenticeship or on-the-job training — four years, minimum 7,000 hours — plus ICC exam F31.

Is there an HVAC apprenticeship in Colorado Springs?

The UA's find-a-local directory lists Local 58 Colorado Springs.

That is the extent of what our research confirms there: the directory establishes the local, not its current program details, entry standards or application dates, so contact the local — or its Joint Apprenticeship Committee, where it has one — and ask what it is registering.

Colorado Springs' own local HVAC licensing rules were not part of our research either, so confirm any local requirement with the city or county building department where the work is done.

Does an HVAC apprenticeship count toward a Colorado license?

There is no statewide HVAC license in our research to count toward, and the HVAC licensing we did confirm is local — so ask the city or county where you will work how it credits hours.

The documented example is Denver: its Heating and Ventilating Journeyman certificate requires four years (minimum 7,000 hours) of heating and ventilating field installation experience gained in an apprenticeship or an on-the-job training program, along with a passing score on ICC exam F31.

Completing a registered apprenticeship also earns a completion certificate from the registration agency, but that certificate is not a trade license.

How much do HVAC apprentices get paid in Colorado?

Registered apprenticeship programs must pay a progressively increasing schedule of wages tied to the skill you acquire, and the entry wage may not fall below the FLSA minimum wage where it applies; the federal rule sets no percentage steps, so each program's standards set its own scale.

Our research has no verified Colorado apprentice wage figures, so ask each sponsor for its current schedule.

For pay context, see our HVAC apprentice pay guide.

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More Colorado Resources

Sources

Sourced from the documents listed above.

Verified September 2026.

This is career information, not legal advice.

Confirm current rules with the Colorado State Apprenticeship Agency (SAA), recognized by the U.S. Department of Labor.