A 2025 amendment added 'HVAC contractor' to the license classifications in Utah Code § 58-55-301(2), with § 58-55-302(3)(n) requiring two years of full-time paid HVAC-specific experience and an exam. DOPL's rule took effect March 30, 2026; for H100 applications filed on or after April 20, 2026 the qualifier must pass the H100 trade exam and the Utah Business & Law exam and hold RMGA (Rocky Mountain Gas Association) or equivalent natural gas certification — or be a master plumber with a plumbing classification.
HVAC is outside the $7,000 handyman exemption: § 58-55-305(1)(h)(ii)(F) requires HVAC installation, repair, or replacement to be done by a DOPL-licensed HVAC contractor regardless of job size. HVAC contractors complete six CE hours per cycle, at least three of them HVAC-specific. Technicians handling refrigerants also need EPA Section 608 certification.
The state sets the license floor; the county or city permit office controls filing, inspections, and local rules wherever the job site sits.
The DOPL license is the only contractor license a city or county may require (§ 58-55-301(1)(c)); local building officials issue mechanical permits and inspect.
The local offices section below names the exact permit desk for every Utah county on file.
Each row names the issuing authority, cost, timeline, citation, and status behind the requirement — verified against the official source.
Published fees from the issuing authorities, as of October 2026. Local permit fees vary by project and jurisdiction — the basis is stated where a flat number does not exist.
DOPL's 2026 application lists H100 as a general classification and no longer offers S350 as a specialty.
Utah requires a DOPL-licensed HVAC contractor for any HVAC installation, repair, or replacement — even on a job under $7,000.
Of the six CE hours per cycle, at least three must relate directly to HVAC installation, repair, or replacement (§ 58-55-302.5(2)(f)).
A practical sequence for a new HVAC contractor in Utah. Actual agency processing times are noted in the ledger above.
Each item names the issuing authority, cycle, and citation.
Statutory consequences with their citations — not estimates, not “commonly cited” guesses.
Engaging in a construction trade or acting as a contractor without the appropriate license (or an exemption) is unlawful conduct; DOPL may cite instead of prosecuting, and citations escalate.
A contractor may not sue in a Utah court to collect compensation for licensed work without alleging and proving it was licensed when the contract was made and when the claim arose.
Inside city limits, the city office listed here issues the permit; the county office serves unincorporated areas. Every office links to its official page.
Every fact in this file was checked against these official sources on October 2026.
Pending verification: How existing S350 licensees convert to H100 (reported rule text deems active S350 holders H100 through November 30, 2027, but the rule was not read directly) · Experience evidence standard: the statute says two years of full-time paid HVAC experience and DOPL's notice says W-2-verified, while the application form says 4,000 hours within the past five years — presumed consistent but not confirmed · H100 trade exam vendor and fee
General information, not legal advice. Always confirm requirements, deadlines, and forms with the issuing authority before filing or contracting.
Store licenses, permits, policies, and renewal dates in one place.