Plumbers and heating and cooling contractors in Montana

35 plumbers and heating and cooling contractors are listed in Montana. 28 hold an active USDOT registration. They're listed below by county.

Montana licenses master and journeyman plumbers through its Board of Plumbers.^{1, 2, 3} Heating and cooling work has no licensing board in Montana's Department of Labor and Industry.³ State law exempts Montana homes of fewer than five units from state mechanical permits, though plumbing businesses need a state plumbing permit where the state runs the program.^{4, 5}

Contractors by county

35 contractors in 14 counties.

Cascade County 2 contractors

Central Plumbing & Heating Inc, Schneiderhan Brothers Heating and Cooling

Custer County 1 contractor

Water Heaters Plus

Flathead County 4 contractors

Bosket's Plumbing & Excavating Inc, Franks Plumbing and Heating, Nelson Heating LLC, Nwestco LLC

Gallatin County 1 contractor

Manhattan Plumbing and Heating Three Forks Plumbing and Heating Livingston Plumbing and Heating Manhattan Air MPH Excava

Hill County 1 contractor

Milk River Plumbing LLC

Jefferson County 3 contractors

3 Brothers Plumbing & Heating, Bald Eagle Land, Plumbing and Excavating

Lewis and Clark County 2 contractors

Big Sky Plumbing & Heating, Tri County Mechanical & Electrical

Lincoln County 2 contractors

Koocanusa Plumbing & Electric Inc, Up North Mechanical

Madison County 1 contractor

Brown Contracting

Missoula County 4 contractors

4G Plumbing & Heating Inc, Garden City Plumbing and Heating Inc, Hellgate Plumbing, Heating, And Cooling, Silvertip Excavation LLC

Musselshell County 1 contractor

Pioneer Plumbing and Hydronic Heating

Ravalli County 2 contractors

H C I General Engineering and Construction, Stack Commercial LLC

Silver Bow County 1 contractor

Lockmer Plumbing Heating & Utilities Inc

Yellowstone County 10 contractors

Allied Control and Mechanical, American Plumbing Heating and Excavation LLC, Brown Plumbing and Heating, C Bar J Mechanical, G & T Plumbing & Mechanical Inc, Homey Solutions Inc, KW Mechanical Services, Precision Plumbing and Heating Inc, Roto-Rooter Plumbing and Drain Cleaning and City Service Plumbing and Heating, Stevens Brothers Mechanical

Plumbing and HVAC rules in Montana

Plumbing license: State license.^{1, 2, 3}
Heating and cooling license: Montana's Department of Labor and Industry has a Board of Plumbers and a State Electrical Board but no board for heating and cooling work. Ask your city or county whether it licenses heating and cooling contractors.³
Replacement permits: Where Montana runs the program, anyone in the business of installing, altering or repairing plumbing needs a state plumbing permit, though homeowners working on their own home are exempt and certified cities and counties run their own programs. State law exempts homes of fewer than five units from state mechanical permits, so only a local program would require one.^{4, 5}

Plumbing and HVAC rules in Montana

What plumbing and HVAC work costs in Montana

These are published national ranges, not quotes. Local quotes vary.

A plumber's hourly rate: $45 to $200 an hour; most charge $70 to $150 (HomeAdvisor, Fixr, HomeGuide)
A plumber's service call: $50 to $300 a visit, which often covers the first hour (HomeAdvisor, Fixr, HomeGuide)
After-hours or emergency call: about $100 to $300 added to the call, or about $150 to $350 an hour (HomeAdvisor, Fixr, HomeGuide)
Burst or leaking pipe repair: $200 to $3,000; the guides' averages run $500 to $1,200 (HomeAdvisor, Fixr, HomeGuide)
Clearing a sink, tub or toilet drain: $100 to $275 (HomeAdvisor, Fixr, HomeGuide)
Clearing the main line: $175 to $800; typically $350 to $650 (HomeAdvisor, Fixr, HomeGuide)
Hydro jetting: $350 to $1,400, depending on the line and the blockage (HomeAdvisor, Fixr, HomeGuide)
Gas tank water heater: $700 to $2,700 installed; about $1,900 on average (HomeAdvisor, Fixr, HomeGuide)
Tankless water heater: $1,600 to $5,600 installed for gas, depending on gas line and venting work (HomeAdvisor, Fixr, HomeGuide)$850 to $3,000 installed for electric, before any panel upgrade ($850 to $1,700) (Fixr, HomeGuide)
Heat pump water heater: $2,000 to $4,600 installed in place of an electric tank; more when it replaces gas (HomeAdvisor, Fixr, HomeGuide)
Sewer camera inspection: $125 to $500 (HomeAdvisor, Fixr, HomeGuide)
Sewer line replacement: about $1,400 to $5,300 for a typical line (HomeAdvisor, HomeGuide)$50 to $250 a linear foot (HomeAdvisor, HomeGuide)
Replacing central AC on existing ducts: $3,900 to $8,000; about $6,000 on average (HomeAdvisor, Fixr, Forbes Home)
Swapping a heat pump on existing ducts: $4,000 to $8,000; a 3-ton system about $3,900 to $6,200 (HomeAdvisor, Forbes Home, HomeGuide)
A whole-home heat pump system: commonly $14,000 or more (NYSERDA, Massachusetts EEAC, Fixr, HomeGuide)
Replacing a gas furnace: $3,800 to $6,200 at standard efficiency (HomeGuide, HomeAdvisor, Fixr, Forbes Home)$5,200 to $12,000 at high efficiency (90% AFUE and up) (HomeGuide, HomeAdvisor, Fixr, Forbes Home)
Replacing an electric furnace: $1,600 to $8,000, with a like-for-like swap at the low end (Fixr, HomeAdvisor)
A single-zone mini-split: $2,000 to $5,000 (HomeGuide, Fixr, Forbes Home)
A multi-zone mini-split: $3,000 to $14,000 for 2 to 4 zones (HomeGuide, Fixr, Forbes Home)
An HVAC tune-up: $70 to $350 a visit; a basic tune-up is often about $100 to $200 (HomeGuide, HomeAdvisor, Fixr)
An HVAC maintenance plan: $120 to $500 a year (HomeGuide, Fixr)

Ranges from HomeAdvisor, HomeGuide, Fixr, Forbes Home, NYSERDA and the Massachusetts EEAC, checked September 2026.

What plumbing and HVAC work costs in Montana

Contractors by county

Plumbing and HVAC rules in Montana

What plumbing and HVAC work costs in Montana

Sources