Michigan HVAC License Requirements

Michigan licenses Mechanical Contractors statewide by work classification through LARA’s Board of Mechanical Rules. The HVAC Equipment classification includes ductwork, gas piping, and venting. Other relevant classifications can include Ductwork, Refrigeration, hydronic heating and cooling/process piping, and defined service or specialty licenses. Applicants need at least three years of experience in each classification sought and must pass an examination for each. State licensure does not replace local building permits or inspections.

Regulatory Body

Michigan Department of Licensing and Regulatory Affairs — Bureau of Construction Codes (LARA BCC) administers and enforces this credential under the authority of Michigan Skilled Trades Regulation Act, MCL 339.5101 et seq., Article 8 mechanical contractors, including MCL 339.5807.. The Board of Mechanical Rules licenses mechanical contractors by classification, administers qualification and examination requirements, and supports enforcement of the mechanical-contractor law.

Official portal: https://www.michigan.gov/lara/bureau-list/bcc/Sections/Licensing-Section/exam-lic/mechanical-examination-licensing-registration-application-information
Address: P.O. Box 30255, Lansing, MI 48909
Phone: (517) 241-9316

Eligibility Requirements

This guide does not establish a minimum applicant age; confirm any age requirement with the issuing authority. Check the current application for identification and tax-number requirements. The current LARA mechanical materials reviewed do not state a Michigan-residency requirement.

Good moral character

Applicants certify eligibility under the Skilled Trades Regulation Act; LARA evaluates the application and supporting experience materials.

Background investigation

Use the current mechanical application for required disclosures; this audit does not state a universal fingerprint requirement.

Experience and Education

Eligibility requires 3 years of At least three years (6,000 hours) of experience in each work classification requested, or an equivalent accepted by the Board. Except for an equivalent-experience route, the applicant provides a statement under penalty of perjury from each present or former contractor-of-record employer describing the work and time performed., documented and independently verifiable. Payroll, tax, project, and supervisor records are the usual proof the board will accept.

Accepted proof of experience or eligibility

Current LARA Mechanical Contractor examination/licensing application
Employer statement under penalty of perjury for every requested classification
Supporting records for any Board-accepted equivalent experience

Education substitution

The statute permits Board-accepted equivalent experience; this guide does not claim a fixed education-to-hours substitution not published in the current LARA applicant instructions.

Exam Requirements

Testing provider or authority: PSI, after LARA approves the application.. The following examination requirements cover the pathways described in this guide; follow each part's classification, waiver, and local-scope conditions. Unpublished format details do not remove an examination requirement:

Mechanical contractor examination for each requested work classification — question count: confirm with the authority, timing: confirm with the authority, passing score: confirm in the current candidate bulletin

Examination fee: The $300 initial license/classification fee is paid with the LARA application. PSI examination fees are paid to PSI when scheduling; confirm the current candidate bulletin for amounts and format.

Retake policy: LARA states that approved applicants are contacted by PSI to schedule. Follow current PSI candidate instructions for retakes; fixed passing scores and part fees were not substantiated in the reviewed official material.

Insurance and Bonds

This credential carries no state-level surety bond requirement under the cited sources. Individual jobs may still trigger a permit or public-works bond, which should be verified before bidding.

General liability

No statewide LARA mechanical-contractor general-liability minimum was substantiated in the reviewed statute, application, or licensing page. Local authorities, owners, lenders, and contracts can require coverage.

Workers' compensation

Workers’ compensation duties depend on the business and workforce under Michigan law; check the applicable Michigan requirement before hiring.

Additional financial requirements

No statewide financial-statement requirement was substantiated for the LARA Mechanical Contractor license.

Fee Schedule

Fee	Amount
Application	$300
Initial license	$300
Renewal (every 3 years)	No separate amount recorded; confirm in the fee guidance

To turn these board fees into a realistic year-one budget — bond premium, liability insurance, and exam prep included — open the cost calculator preloaded for Michigan hvac.

Renewal and Continuing Education

Renewal of the Michigan Mechanical Contractor License (HVAC Classifications) comes due every 3 years. The cited state source set does not list a separate statewide renewal fee. Do not rely on the zero field as a promise of no renewal fee; confirm LARA’s current renewal fee and dates in its renewal portal.

Continuing education: No current statewide LARA continuing-education requirement for Mechanical Contractor renewal was substantiated in the reviewed sources. Verify the live renewal notice and any local requirement before renewal.

Downloadable Asset

2026 Michigan HVAC License Roadmap (PDF) — a printable step-by-step checklist for the application process.

Download the PDF roadmap →

Reciprocity

The NASCLA Accredited Examination is not accepted by Michigan for this classification.

Reciprocal State	Accepted Exam	Conditions
No formal bilateral reciprocity agreements identified.

No general interstate reciprocity arrangement or NASCLA examination waiver was substantiated in the current LARA mechanical-contractor sources reviewed. Use LARA’s experience and examination route unless LARA confirms a specific statutory pathway.

Weighing more than one jurisdiction? The national hub compares published HVAC license requirements by state — exam, bond, fee, and experience thresholds side by side.

HVAC Licensing in Neighboring States

Contractors working near a state line, or weighing where to qualify first, should compare Michigan's requirements against the bordering jurisdictions before committing to an application:

Indiana HVAC License Requirements — Indiana HVAC — Local Contractor Requirements and Federal Section 608
Ohio HVAC License Requirements — Ohio HVAC Contractor (OCILB Commercial License)
Wisconsin HVAC License Requirements — Wisconsin HVAC Contractor Registration and HVAC Qualifier Certification

Step-by-Step Application Roadmap

Choose the actual work classifications. Select only classifications that cover the intended work. HVAC Equipment includes ductwork, gas piping, and venting; refrigeration, service, hydronic, and specialty work may require additional classifications.
Document classification-specific experience. For each classification, document at least three years of experience or Board-accepted equivalent experience through the required employer statement.
Apply and pay the initial fee. Submit the current application with the $300 initial license/classification fee and qualifying documentation. Qualified military applicants may be exempt from the initial fee under the form instructions.
Schedule PSI examinations. Once LARA approves the application, PSI provides scheduling instructions. Pass an examination for every classification sought.
Use the license with local approvals. Licensed Mechanical Contractors can install, alter, service, and secure permits, but local permit, plan-review, inspection, and contractor registration rules remain in force.
Maintain classification scope. Apply for and test on additional classifications rather than performing work outside the existing license scope. Confirm current renewal requirements in the LARA renewal portal.

Application Checklist

The items below are the ones worth confirming before the application is filed with LARA BCC:

Correct work classifications for the business scope
Three years/6,000 hours per classification or Board-accepted equivalent experience
Employer statements under penalty of perjury
Current LARA Mechanical Contractor application
$300 initial fee and PSI fees after approval
Pass each requested classification examination
EPA Section 608 certification where federal refrigerant rules apply
Local permits, inspections, and project insurance requirements

Common Filing Mistakes

Working from the cited board instructions, here are the snags most likely to trip up a Michigan HVAC filing.

Treating HVAC as one unlimited classification

Michigan licenses by work classification; the needed HVAC-related classification depends on the exact work.

Using experience from another classification without proof

Applicants document three years for every classification or an equivalent accepted by the Board.

Relying on a claimed reciprocal license

The reviewed sources do not publish a general reciprocal-state or NASCLA waiver list.

Assuming no local approvals remain

State licensing does not replace local permits or inspections.

Study and Reference Materials

The references below are either cited by the board, used during the application, or standard preparation for the trade. They are listed purely for convenience — CLR earns no commission on any of them.

LARA Mechanical Contractor Licensing Exam Reference Materials — Michigan LARA. Current official reference-material list for each work classification.
Michigan Mechanical Code — Michigan LARA. Use the currently adopted code and classification-specific code references identified by LARA/PSI.
Michigan Skilled Trades Regulation Act and mechanical classifications — Michigan Legislature / LARA. Primary scope and experience authority.

Other Michigan Trade Licenses

CLR covers other Michigan trades as well — the published guides below may be more relevant:

Frequently Asked Questions

Does Michigan require a statewide HVAC contractor license?

Yes. Michigan Mechanical Contractors are state licensed by classification. The HVAC Equipment classification covers ductwork, gas piping, and venting.

How much HVAC experience does Michigan require?

At least three years of experience in each work classification sought, or an equivalent accepted by the Board. The statute describes this as 6,000 hours.

Which classifications can an HVAC company need?

Depending on services, HVAC Equipment, Ductwork, Refrigeration, hydronic heating and cooling/process piping, and limited or unlimited heating/refrigeration service classifications may be relevant. Review scope before applying.

Does Michigan offer mechanical-contractor reciprocity?

This audit found no Board-published general reciprocal-state list or NASCLA waiver. Confirm any claimed equivalency with LARA before relying on it.

Does the state license replace city permits?

No. LARA licensure permits the contractor to perform covered work and secure permits, but local jurisdictions still administer permits, inspections, and may impose other business requirements.

Primary Sources

Regulatory requirements on this page are drawn from the official board, statute, and exam-provider materials listed below.

Verified 2026-09-04 · Next scheduled review 2026-12-03

Report a correction to this guide

Corrections and presentation updates

2026-09-30: Corrected examination detection when format details are unpublished and updated the summary layout and requirements score. Source-check dates are unchanged.
2026-09-08: Shared template updated to distinguish unspecified eligibility requirements, retain cost qualifications, and use consistent headings. Source-check dates are unchanged by presentation updates.
2026-09-21: Local-only guides now use a compliance-focused structure and terminology instead of implying a statewide license application. Source-check dates are unchanged by this presentation update.