HVAC contractors in
Billings, Montana.
A public directory of licensed hvac contractors serving greater Billings. Market data, licensing requirements, and cost benchmarks — updated continuously from public sources.
Common Job Costs
Licensing Requirements
Licensing Requirements
Montana requires Plumber/Mechanical Contractor license through the Department of Labor and Industry. Must pass PSI examination, provide 4 years experience or complete approved apprenticeship, carry $10,000 surety bond. License renewal every 3 years with 24 hours continuing education.
Permit Requirements
City of Billings requires mechanical permits for HVAC installations, replacements, and major repairs. Permit fees range $50-$200 based on project scope. Plans required for commercial work and residential systems over 5 tons.
Inspection Schedule
Rough-in inspection before covering ductwork, final inspection after installation completion. Commercial projects require additional inspections per project complexity.
Insurance Minimums
General liability minimum $300,000, workers compensation required if employees present. Most contractors carry $1 million liability for commercial work.
How to Get Licensed
Meet experience requirements
Document 4 years of verifiable HVAC experience under a licensed contractor or complete an approved apprenticeship program through the Montana Department of Labor and Industry.
Submit application
Complete the Plumber/Mechanical Contractor license application through the Montana Department of Labor and Industry website, including experience documentation and required fees.
Pass PSI examination
Schedule and pass the PSI mechanical contractor examination covering codes, regulations, and trade knowledge. Exam fee is separate from license application fee.
Obtain surety bond
Purchase and file a $10,000 surety bond with the state as required for all mechanical contractor licenses in Montana.
Maintain license
Renew license every 3 years with 24 hours of approved continuing education and payment of renewal fees to maintain active status.
About This Market
Billings HVAC market runs on extremes — brutal winters hitting -20°F and summers pushing 100°F drive steady demand for both heating and cooling systems. With 669 licensed establishments statewide and Billings being the largest city, competition is real but work stays consistent. Residential retrofits dominate, especially furnace replacements in older neighborhoods and AC installs in homes that never needed cooling before. Commercial work centers around the medical corridor and downtown office buildings. Costs run 10-15% below national average due to lower labor costs, but equipment prices match anywhere else. Getting licensed in Montana means passing the PSI exam and proving your experience — no shortcuts. The state takes mechanical licensing seriously with a 3-year renewal cycle and mandatory continuing education. Billings building department runs tight inspections, especially on commercial jobs. Peak season splits clean — heating work October through March when furnaces fail, cooling work May through September when temperatures spike. Smart contractors prep for the seasonal swings and maintain relationships with suppliers since parts availability can be spotty in winter. Local code follows IBC with few modifications, but always check city amendments before pulling permits.
- Number of licensed establishmentsU.S. Census Bureau
- Licensing requirementsMontana Department of Labor and Industry
- Permit requirementsCity of Billings Building Department
- Cost rangesLocal market estimates
- Insurance requirementsMontana state regulations
Frequently Asked Questions
What license do I need to do HVAC work in Billings, Montana?
Montana requires a Plumber/Mechanical Contractor license through the Department of Labor and Industry. You must pass the PSI examination and provide proof of 4 years experience or complete an approved apprenticeship program.
How much does an HVAC permit cost in Billings?
City of Billings mechanical permits range from $50-$200 depending on project scope. Residential furnace or AC installations typically fall in the lower range, while commercial systems require higher permit fees.
When is peak season for HVAC work in Billings?
Peak season splits between heating work October through March when temperatures drop below -20°F, and cooling work May through September when temperatures exceed 100°F. Emergency calls spike during extreme weather events.
What insurance do HVAC contractors need in Montana?
Montana requires general liability insurance with minimum $300,000 coverage and workers compensation if you have employees. Most contractors carry $1 million liability for commercial projects and customer protection.
How many HVAC contractors operate in Montana?
According to Census data, approximately 669 licensed HVAC establishments operate statewide in Montana, with Billings representing the largest concentration due to its status as the state's most populous city.
HVAC contractors in Billings
No contractors listed yet.
Run your hvac business on The Forge.
Get listed on The Board for free. Manage leads, quotes, jobs, and follow-ups in one place. Built for trades, used by thousands of operators nationwide.