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Do you need an HVAC license in Montana?

What our research found about HVAC licensing in Montana, and what to check with the city or county where you work.

Full rule details
Verified dataLast checked Oct 17, 2026, next review due July 2027

Informational: verify with the issuing board.

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Short answer

Montana does not issue a state HVAC license.

What our research found

Montana has no state HVAC or mechanical contractor license: MCA Title 37, Chapter 70 (Board of Warm Air Heating, Ventilation and Air Conditioning) is repealed. HVAC firms are subject to the DLI Construction Contractor License (see general_contractor), the electrical license for any electrical wiring, EPA 608 for refrigerants, and local permit and code rules. Local jurisdictions with certified building programs may have their own requirements.

Who handles it, per our sources: Montana Construction Contractor License Program (Dept. of Labor & Industry)

What to check locally

  1. Call the building or permit office of the city or county where the job is. Ask whether it needs a local HVAC license or a contractor registration before you pull a permit.
  2. Ask what keeps that local license current: the renewal date, the fee, any bond or insurance certificate, and any continuing education.
  3. Check each city or county you work in on its own. Each one sets its own rules, fees and renewal dates.
  4. Read the notes above for anything the state still requires, such as a business registration, a tax license or a license for related trade work.
Track local licenses, bonds and insurance dates

HVAC / mechanical contractor

No license required · Montana Construction Contractor License Program (Dept. of Labor & Industry)

Remind me before this expires
Renew on the official siteBoard phone: (406) 444-6880

We did not find online renewal for this license, so the link may open the board site.

Renewal cycle
Not published, check with the board
Deadline rule
Not published, check with the board
Show fees, grace period, bond and insurance
Grace period
Not published, check with the board

Fees, approximate

Renewal fee
Check the official site for the fee.
Late fee
Check the official site for the fee.

Fees change. Check the official site for the exact amount.

Why approximate?

Boards change fees often and some charge extra processing fees. We show a recent amount so you can plan.

Bond
Not required
Insurance
Not required
Reciprocity
Not published, check with the board
Notes

Montana has no state HVAC or mechanical contractor license: MCA Title 37, Chapter 70 (Board of Warm Air Heating, Ventilation and Air Conditioning) is repealed. HVAC firms are subject to the DLI Construction Contractor License (see general_contractor), the electrical license for any electrical wiring, EPA 608 for refrigerants, and local permit and code rules. Local jurisdictions with certified building programs may have their own requirements.

Confidence: HighConfirmed from official rule textLast checked Oct 17, 2026
Sources (2)

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Montana HVAC licensing questions

Answers come from the records above. Informational: verify with the issuing board.

Do you need a state HVAC license in Montana?

No. Montana does not issue a state HVAC license. Montana has no state HVAC or mechanical contractor license: MCA Title 37, Chapter 70 (Board of Warm Air Heating, Ventilation and Air Conditioning) is repealed. HVAC firms are subject to the DLI Construction Contractor License (see general_contractor), the electrical license for any electrical wiring, EPA 608 for refrigerants, and local permit and code rules. Local jurisdictions with certified building programs may have their own requirements. Check with the city or county where the job is before you start work.

Who handles HVAC licensing in Montana?

Our records point to: Montana Construction Contractor License Program (Dept. of Labor & Industry) Rules differ from one city or county to the next, so check with the one where the job is.

Sources

Spot something out of date?

Informational only. Check it with the issuing board. Licensing rules, deadlines and CE requirements change, fee amounts are approximate, and this page can be out of date. It is not legal advice, and we are not affiliated with any state board. Read the disclaimer.

This information is here to help you plan, not to replace the board. Fee amounts are approximate and may be out of date. Deadlines and continuing education rules change too, sometimes without much notice. Always confirm with your licensing board and its official site before you rely on a date or an amount. This is not legal advice.

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