HVAC License in Michigan: Fees, Requirements & Startup Costs
Quick answer: Michigan regulates mechanical contracting through the Department of Licensing and Regulatory Affairs (LARA), Bureau of Construction Codes. A new HVAC business needs a Mechanical Contractor license with the HVAC Equipment classification, held by a qualified individual. The initial license and classification fee is $300, and the PSI HVAC Equipment exam costs $100 per attempt, per the LARA mechanical application.
Who holds the license
Michigan issues the Mechanical Contractor license to a qualified individual, not to the company itself. That person applies for the license and the HVAC Equipment classification, and the business operates under that credential. The state does not show a separate master HVAC qualifier license, so the contractor license and its classification are the core authority. A company entity filing alone does not establish contracting authority in Michigan.
The HVAC Equipment classification covers typical residential HVAC installation, including ductwork, gas piping, and venting. Other classifications exist for hydronic heating and cooling, refrigeration, limited and unlimited heating service, limited and unlimited refrigeration and AC service, fire suppression, and specialty gas piping and venting. A business that offers distinct service scopes may need added classifications, each with separate prerequisites, exams, and prorated addition fees. The $300 initial fee applies to the initial license and classification and should not be multiplied without confirmation from LARA.
Licensing in Michigan
Jurisdiction: state
Authority: Michigan Department of Licensing and Regulatory Affairs (LARA), Bureau of Construction Codes
Michigan licenses mechanical contractors by work classification through LARA; the HVAC equipment classification covers typical residential HVAC installation and includes ductwork, gas piping, and venting.
Mechanical Contractor — HVAC Equipment (classification 2/b)
BUSINESS/INDIVIDUAL QUALIFIER The qualified individual applies for the Mechanical Contractor license and HVAC Equipment classification to install HVAC equipment, including ductwork, gas piping and venting; the state does not show a separate master HVAC qualifier license.
| Fee | Amount | Period (years) |
|---|---|---|
| Initial Mechanical Contractor license/classification, including HVAC Equipment | $300 OFFICIAL FEE Source — www.michigan.gov | 3 |
| PSI HVAC Equipment classification exam, each attempt | $100 VERIFIED DATA Source — test-takers.psiexams.com | — |
| Mechanical Contractor license renewal every three years | $300 OFFICIAL FEE Source — www.michigan.gov | 3 |
Exam: Provider: PSI · Fee: 100 · Source
Experience: At least three years or 6,000 hours in each sought work classification, or board-accepted equivalent; employer statements signed under penalty of perjury required.
Education: A qualifying two-year HVAC program may credit up to one year or 2,000 hours toward the experience requirement.
Renewal and CE: Renewal period: 3 years · Continuing education: 0 hours · Source
Background check: Application asks applicant to attest to rehabilitation if there was a criminal judgment of guilt or civil action; separate fingerprint check not confirmed.
Local note: Mechanical permits are administered by the state or the local enforcing agency: https://www.michigan.gov/lara/bureau-list/bcc/sections/permit-section/permits/mechanical-permit-information
Data notes
The initial mechanical license costs $300; additional work classifications may have separate prerequisites, exams and prorated fees. HVAC Equipment is the typical installation classification.
Verified: 2026-09-25
Experience and education requirements
An applicant must document at least three years or 6,000 hours in each work classification sought, or a board-accepted equivalent. Employer statements signed under penalty of perjury are required. A qualifying two-year HVAC program may credit up to one year or 2,000 hours toward the experience requirement, which shortens the path for graduates of accredited programs.
The application also asks the applicant to attest to rehabilitation if there was a criminal judgment of guilt or a civil action. A separate fingerprint check was not confirmed on the state application. Applicants with a history to disclose should prepare documentation before submitting.
Exam
The HVAC Equipment classification exam is administered by PSI and costs $100 per attempt. The exam covers HVAC equipment installation, ductwork, and gas piping. The PSI bulletin lists the fee and scheduling details. Budget for the exam as a separate line item from the license fee, and plan for a retake if the first attempt is unsuccessful.
Bond and insurance
The official sources reviewed for this page do not list a bond or insurance amount on the state mechanical application. That does not mean coverage is unnecessary. General liability and workers’ compensation obligations may still apply to the business, and customers or general contractors may require certificates. Confirm current requirements with LARA and an insurance professional before quoting work.
Renewal and continuing education
The Mechanical Contractor license renews every three years. The renewal fee is $300, per the LARA renewal guidance. No continuing education hours are listed for this license. Renewal fees are not part of the year-one starting cost, but they belong on the operating calendar so the credential does not lapse while work is under contract.
Local permits and inspections
Mechanical permits are administered by the state or the local enforcing agency. Ask the authority with jurisdiction over each job address which work needs a permit, who must apply, and how inspections are scheduled. A state license does not set a uniform city permit policy. Add permit time and inspection returns to estimates when replacing equipment or changing a system. The mechanical permit information page explains the state process.
Plan the startup budget
A Michigan HVAC startup should account for the $300 initial license and classification fee, the $100 exam fee, tools, a vehicle, refrigerant handling equipment, and common replacement parts. Installation work adds equipment ordering, delivery, and a larger gap between purchases and customer collection. Use the calculator below to adjust the preset for the actual classification, vehicle, and coverage quote. The startup costs guide explains how those choices move the opening budget.
Startup Cost Calculator
Estimated startup cost: $8,300–$10,800
Estimated startup cost: $8,300–$10,800. Break-even at about 7 jobs per month.
| Licensing & exam fees | $400 OFFICIALLicense details |
|---|---|
| Business formation (state filing) | $50 OFFICIAL |
| Insurance (first year) | $910–$1,200 MARKET ESTIMATEGeneral liability |
| Vehicle acquisition | $0 YOUR INPUTYour existing vehicle; acquisition cost $0Vehicle price sources |
| Tools & equipment | $250 MARKET ESTIMATEStarter kit items
|
| Software (first year) | $590–$2,250 MARKET ESTIMATEPublished monthly list price × 12Software price sources
|
| Launch marketing | $1,500 YOUR INPUTYour input — default: 3 months × $500 |
| Payroll reserve | $0 CALCULATEDBLS median wage × 173 hours/month × employees × employer taxes and ECEC benefits × working-capital months |
| Working capital | $4,600–$5,100 CALCULATEDMonthly overhead excluding payroll (shown separately) × working-capital months |
| Permits & compliance | $0 YOUR INPUTYour input — default $0; local requirements may apply |
Monthly overhead: $1,550–$1,700 · Annual operating: $18,400–$20,400 · Break-even: 7 jobs/month
Vehicle operating per month: $760 CALCULATED
Phone and admin per month: $150 YOUR INPUT
Show formula
Startup total is the sum of available first-year cost lines. Monthly overhead includes insurance, software, marketing, vehicle operating, phone and admin, and payroll. Break-even jobs = monthly overhead ÷ (average ticket × gross margin).
For a broader comparison of contractor credentials, read the HVAC license requirements by state and the HVAC business guide. Sibling state pages include Ohio and Georgia.
Last updated: September 25, 2026