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Montana

HVAC companies in Billings, MT

17 local HVAC companies based within about 35 miles of Billings, listed A to Z with phone numbers, addresses and services. Paid placements are labeled.

17 listed11 say 24/7 emergency5 heat pumps10 commercial
See the listNo heat or AC? What to do first

No heat or no cooling right now?

If you smell gas or a carbon monoxide alarm sounds, leave first and call 911 or your gas utility from outside. Otherwise, call a company below that says it takes emergency calls. Quick checks first: AC not cooling · furnace not working.

What to do first

The list

Billings HVAC companies, A to Z

Filter by what each business says on its own website. “Says 24/7 emergency” means its site says so – call to confirm before you rely on it.

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Your HVAC company, Billings

The one City Spotlight place for Billings sits here, above the A to Z list. Requests sent from this page for areas the Spotlight company serves go to it. Offered only to companies that pass our listing rules. How it works

Central Heating & Air Conditioning

Based in Billings, MT · 1428 1/2 Grand Ave, Billings, MT 59102

Says 24/7 emergencyHeating and coolingHomesAC repairAC installationFurnace repairFurnace installationHeat pumpsMini-splitsDuctworkMaintenanceIndoor air quality

License number shown on its website: #161745

(406) 245-5424Website

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Comfort Heating & Air Conditioning LLC

Based in Billings, MT · 9934 South Frontage Road, Billings, MT 59101

Names on its website: Ballantine, Huntley, Joliet, Laurel, Lockwood, Park City, Shepherd, Silesia, Worden

Says 24/7 emergencyHeating and coolingHomesAC repairAC installationFurnace repairFurnace installationHeat pumpsMini-splitsMaintenanceIndoor air quality
(406) 571-3846Website

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Laurel Heating & Cooling

Based in Laurel, MT

Names on its website: Billings, Yellowstone County

Says 24/7 emergencyHeating and coolingHomesBusinessesAC repairAC installationFurnace repairFurnace installationHeat pumpsMini-splitsMaintenance

License number shown on its website: Contractor Registration: CR 282066; Billings Business License: OL-26-45127; Laurel Business License: 2390

(406) 876-5585Website

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The HVAC Doctor LLC

Based in Laurel, MT

Names on its website: Billings, Billings Heights, Park City, Columbus, Molt

Says 24/7 emergencyHeating and coolingHomesBusinessesAC repairAC installationFurnace repairFurnace installationHeat pumpsMini-splitsMaintenanceBoilers
(406) 633-1482Website

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White Heating & Air Conditioning

Based in Billings, MT · 1125 4th Ave. N., Billings, MT 59101

Says 24/7 emergencyHeating and coolingHomesAC repairAC installationFurnace repairFurnace installationHeat pumpsMini-splitsIndoor air qualityBoilersGeothermal
(406) 248-2162Website

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Details on this page come from each business’s own website, checked October 2026. Free listings are shown alphabetically. How we list · Update or remove a listing

Before you hire

Checking an HVAC company in the Billings area

HVAC licenses in Montana

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.

Questions to ask

Ask every company the same questions: license number, insurance, EPA refrigerant certification, a written itemized estimate, a load calculation for new equipment, after-hours rates, who pulls the permit, and the warranty. All eight questions.

Seasonal care

Getting through a Billings winter

Heating season is the long one in Billings, so the furnace, boiler or heat pump does most of the work. Start with these before the first cold snap – and keep carbon monoxide alarms working.

Furnace maintenance: a fall checklist for safe heatA gas furnace burns fuel inside your home, so fall maintenance is about safety as much as comfort. Here is what to do yourself and what the yearly professional inspection should cover.Furnace not working? What to check firstA furnace that will not start is often stopped by a safety switch doing its job. Here is how to find which one – and when to leave the house instead.How to prevent frozen pipes: before and during a freezeWater expands as it freezes, and that pressure can split a pipe. A few steps before winter and during cold snaps prevent most frozen pipes, and the right response limits damage when one freezes anyway.Carbon monoxide and your furnace: alarms, warning signs and what to doCarbon monoxide is a poisonous gas you cannot see or smell. Fuel-burning furnaces, boilers and water heaters can produce it when something goes wrong. Alarms and yearly inspections are the main defenses.Heat pump maintenance: year-round care in both seasonsA heat pump heats in winter and cools in summer, so it runs more of the year than an AC or a furnace alone. Simple upkeep matters in every season, especially keeping the outdoor unit clear of snow and ice.Furnace smells like burning? What the smell means and what to doMost furnaces give off a faint smell the first time they run each fall. A few smells mean turn the system off now, and one means get out of the house. Here is how to tell them apart.

All HVAC guides

Questions

Billings HVAC questions

How many HVAC companies are listed in Billings?

17 HVAC companies, each based within about 35 miles of Billings. They are listed alphabetically.

Which Billings HVAC companies say they offer 24/7 emergency service?

11 of the businesses listed here say on their own website that they offer 24/7 or 24-hour emergency service: 406 HVAC INC, Air Controls, Inc, Central Heating & Air Conditioning, Comfort Heating & Air Conditioning LLC, Empire Heating & Cooling, Indoor Air Solutions, Laurel Heating & Cooling, Midwest Heating & Cooling, PerfecTemp, The HVAC Doctor LLC, White Heating & Air Conditioning. Call to confirm availability and after-hours rates.

Do HVAC contractors in Billings need a license?

In Montana, licensing is split between the state and local governments. Check a license at ebizws.mt.gov.

Which Billings companies work on heat pumps?

5 of the listed businesses say on their own website that they install or repair heat pumps. Use the Heat pumps filter above the list.

Which HVAC companies here do commercial work?

10 of the listed businesses say on their own website that they work on commercial properties. Use the Commercial filter above the list.

Do technicians need EPA certification?

Yes: federal rules require technicians who handle refrigerant to hold EPA Section 608 certification, in every state. Ask any company you are considering.

Nearby metro areas: Boise, ID · Cheyenne, WY · Fargo, ND · Sioux Falls, SD. All of Montana.

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