Montana
HVAC in Montana
17 HVAC companies in the metro area within about 35 miles of Billings – plus how Montana licenses HVAC work.
Metro areas
Montana cities we cover
Montana rules
Do HVAC contractors need a license in Montana?
How Montana licenses HVAC work
Licensing is split between the state and local governments.
Who licenses: Montana Department of Labor & Industry, Business Standards Division (Construction Contractor License program)
License types: Construction Contractor License.
Companies: Montana has a general Construction Contractor License rather than an HVAC-specific one: under MCA 37-45-201 a person or business may not engage in business as a construction contractor without a current license, and the department's page says the new licensing program took effect January 1, 2026. MCA 37-45-104 exempts, among others, contractors with no employees and projects under $2,500, and licensed electricians and plumbers working within their scope.
Local rules: We found no Montana HVAC-specific contractor license on the official pages we read (the state boards list covers plumbers and electricians but no HVAC board), and we did not check city or county permit rules.
Check a license: ebizws.mt.gov
Search the company on the state license lookup to confirm a current Construction Contractor License, and ask your city or county building department what HVAC permit is needed.
Federal rule: in every state, technicians who handle refrigerant must hold EPA Section 608 certification, whatever the state or city requires.
We could not confirm every detail from Montana’s own sources, so treat this as a starting point and check with the agency.
Sources: boards.bsd.dli.mt.gov, boards.bsd.dli.mt.gov, mca.legmt.gov, mca.legmt.gov. Checked October 2026 from official sources. This is not legal advice.
Before you hire
Ask for the license number and check it on the official lookup where one exists. Ask for proof of insurance and a written, itemized estimate, and ask who pulls the permit if the job needs one – a new furnace, heat pump or air conditioner usually does.
Questions
Montana HVAC questions
Do HVAC contractors need a license in Montana?
In Montana, licensing is split between the state and local governments through the Montana Department of Labor & Industry, Business Standards Division (Construction Contractor License program). You can check a license at ebizws.mt.gov.
Where in Montana do you list HVAC companies?
In Montana: Billings (17). Each city page lists companies based within about 25 miles – 35 in smaller metro areas – whose own website names that city or nearby towns.
Do technicians need EPA certification?
Yes, in every state: federal rules require technicians who handle refrigerant to hold EPA Section 608 certification. A state or city license is a separate requirement.
How do I get an HVAC company listed in Montana?
HVAC companies can add their business free. We check every listing against the business’s own website.
Neighboring states: North Dakota · South Dakota · Wyoming · Idaho.
Request an HVAC company
Ask us to find an HVAC company in Montana
Tell us the job and your ZIP code. We pass it to listed companies that serve your area.
No heat in freezing weather, or no cooling in dangerous heat? Call a company from the list that says it takes emergency calls – a form is not fast enough. If you smell gas or a carbon monoxide alarm sounds, leave first and call 911 or your gas utility from outside.