HVAC Costs in Montana

Verified cost ranges across cities in Montana

Verified by 4 sourcesUpdated June 18, 2026

HVAC Cost Comparison — Montana

Compare verified cost ranges across cities in Montana

Cost Comparison — Heat Pump Installation

Montana4 sources

Low

$6,321

Typical

$6,669

High

$12,528

Billings4 sources

Low

$5,912

Typical

$6,238

High

$11,718

Missoula4 sources

Low

$6,096

Typical

$6,432

High

$12,082

Great Falls4 sources

Low

$6,122

Typical

$6,459

High

$12,134

Cost Comparison — Ductwork Installation

Montana2 sources

Low

$69

Typical

$124

High

$423

Billings2 sources

Low

$65

Typical

$116

High

$395

Missoula2 sources

Low

$67

Typical

$120

High

$408

Great Falls2 sources

Low

$67

Typical

$121

High

$409

Cost Comparison — AC Repair

Montana2 sources

Low

$75

Typical

$1,568

High

$4,200

Billings2 sources

Low

$70

Typical

$1,467

High

$3,928

Missoula2 sources

Low

$72

Typical

$1,512

High

$4,050

Great Falls2 sources

Low

$73

Typical

$1,519

High

$4,068

Cost Comparison — Furnace Repair

Montana2 sources

Low

$66

Typical

$1,030

High

$2,673

Billings2 sources

Low

$62

Typical

$964

High

$2,500

Missoula2 sources

Low

$64

Typical

$994

High

$2,578

Great Falls2 sources

Low

$64

Typical

$998

High

$2,589

Cost Comparison — Thermostat Installation

Montana4 sources

Low

$97

Typical

$223

High

$423

Billings4 sources

Low

$91

Typical

$208

High

$395

Missoula4 sources

Low

$94

Typical

$215

High

$408

Great Falls4 sources

Low

$94

Typical

$216

High

$409

Cost Comparison — Duct Cleaning

Montana4 sources

Low

$244

Typical

$908

High

$2,146

Billings4 sources

Low

$228

Typical

$849

High

$2,007

Missoula4 sources

Low

$235

Typical

$876

High

$2,069

Great Falls4 sources

Low

$236

Typical

$879

High

$2,078

Cost Comparison — Mini-Split Installation

Montana2 sources

Low

$2,000

Typical

$5,847

High

$14,500

Billings2 sources

Low

$1,871

Typical

$5,469

High

$13,562

Missoula2 sources

Low

$1,929

Typical

$5,639

High

$13,984

Great Falls2 sources

Low

$1,937

Typical

$5,663

High

$14,043

Cost Comparison — Boiler Installation

Montana3 sources

Low

$3,593

Typical

$3,593

High

$5,813

Billings3 sources

Low

$3,360

Typical

$3,360

High

$5,437

Missoula3 sources

Low

$3,465

Typical

$3,465

High

$5,606

Great Falls3 sources

Low

$3,480

Typical

$3,480

High

$5,630

Cost Comparison — Boiler Repair

Montana2 sources

Low

$75

Typical

$2,233

High

$6,100

Billings2 sources

Low

$70

Typical

$2,089

High

$5,705

Missoula2 sources

Low

$72

Typical

$2,154

High

$5,883

Great Falls2 sources

Low

$73

Typical

$2,163

High

$5,908

Cost Comparison — HVAC Maintenance Tune-Up

Montana3 sources

Low

$63

Typical

$1,476

High

$3,950

Billings3 sources

Low

$58

Typical

$1,381

High

$3,694

Missoula3 sources

Low

$60

Typical

$1,424

High

$3,809

Great Falls3 sources

Low

$61

Typical

$1,430

High

$3,826

Cost Comparison — Geothermal Heat Pump Installation

Montana2 sources

Low

$2,490

Typical

$8,031

High

$20,250

Billings2 sources

Low

$2,329

Typical

$7,511

High

$18,940

Missoula2 sources

Low

$2,401

Typical

$7,745

High

$19,529

Great Falls2 sources

Low

$2,412

Typical

$7,778

High

$19,612

Cost Comparison — Attic Insulation Installation

Montana3 sources

Low

$1,000

Typical

$3,572

High

$9,000

Billings3 sources

Low

$935

Typical

$3,341

High

$8,418

Missoula3 sources

Low

$964

Typical

$3,445

High

$8,680

Great Falls3 sources

Low

$969

Typical

$3,459

High

$8,717

Cost Comparison — Radiant Floor Heat Installation

Montana3 sources

Low

$1,070

Typical

$1,887

High

$4,115

Billings3 sources

Low

$1,001

Typical

$1,765

High

$3,849

Missoula3 sources

Low

$1,032

Typical

$1,819

High

$3,968

Great Falls3 sources

Low

$1,036

Typical

$1,827

High

$3,985

Cost Comparison — AC Installation

Montana2 sources

Low

$4,780

Typical

$5,281

High

$10,103

Billings2 sources

Low

$4,471

Typical

$4,939

High

$9,449

Missoula2 sources

Low

$4,610

Typical

$5,093

High

$9,743

Great Falls2 sources

Low

$4,629

Typical

$5,115

High

$9,785

Cost Comparison — Furnace Installation

Montana3 sources

Low

$2,700

Typical

$2,700

High

$4,704

Billings3 sources

Low

$2,525

Typical

$2,525

High

$4,400

Missoula3 sources

Low

$2,603

Typical

$2,603

High

$4,537

Great Falls3 sources

Low

$2,615

Typical

$2,615

High

$4,556

Browse HVAC Costs by City in Montana

Select a city to see local pricing adjusted for cost of living.

All HVAC Services

hvac

AC Installation

Installation of a new central air conditioning system including outdoor condenser, indoor air handler or coil, refrigerant lines, and thermostat.

Cost data available

hvac

Furnace Installation

Supply and installation of a new gas, propane, or electric furnace including flue venting, gas piping, ductwork connections, and thermostat wiring.

Cost data available

hvac

Heat Pump Installation

Installation of an air-source heat pump system for year-round heating and cooling, including lineset, electrical, and refrigerant charging.

Cost data available

hvac

Ductwork Installation

Fabrication and installation of supply and return air duct systems in new or remodeled homes, including registers, grilles, and balancing dampers.

Cost data available

hvac

AC Repair

Diagnosis and repair of a non-cooling or inefficient central air conditioning system, covering compressor issues, refrigerant leaks, and electrical faults.

Cost data available

hvac

Furnace Repair

Diagnosis and repair of a non-heating or malfunctioning furnace, including igniter replacement, heat exchanger inspection, and blower motor service.

Cost data available

hvac

Thermostat Installation

Installation or replacement of a programmable or smart Wi-Fi thermostat with C-wire installation if required.

Cost data available

hvac

Duct Cleaning

Mechanical cleaning of supply, return, and branch air ducts using rotary brushes and high-powered vacuums to remove dust, debris, and allergens.

Cost data available

hvac

Mini-Split Installation

Installation of a ductless mini-split system including wall-mount indoor heads, outdoor compressor, lineset penetration, and electrical supply.

Cost data available

hvac

Boiler Installation

Supply and installation of a hot-water or steam boiler for hydronic heating, including gas piping, venting, expansion tank, and zone valves.

Cost data available

hvac

Boiler Repair

Diagnosis and repair of a faulty boiler, covering pump replacement, pressure vessel issues, zone valve failure, and flue blockages.

Cost data available

hvac

HVAC Maintenance Tune-Up

Annual preventive maintenance including filter replacement, coil cleaning, refrigerant check, electrical inspection, and system performance test.

Cost data available

hvac

Geothermal Heat Pump Installation

Installation of a ground-source heat pump system including loop field drilling or trenching, ground loop, heat pump unit, and distribution system.

Cost data available

hvac

Attic Insulation Installation

Addition of blown-in cellulose or fiberglass insulation in the attic floor to reach recommended R-value and reduce HVAC load.

Cost data available

hvac

Radiant Floor Heat Installation

Installation of in-floor hydronic tubing or electric heating mats under tile or hardwood floors for radiant space heating.

Cost data available