HVAC Replacement Cost in Pocatello, ID (2026)
Updated October 2026 · Pocatello, ID · index 0.92
How much does a new HVAC system cost in Pocatello? For a 3-ton system with central AC + gas furnace, homeowners in Pocatello, ID pay about $9,700 on average, and most quotes land between $6,600 and $12,800 — $2,202 to $4,253 per ton. The price covers removing the old system, the new outdoor and indoor equipment, a new line set, electrical and condensate connections, the thermostat, the permit, start-up and commissioning.
The HVAC replacement price in Pocatello runs 8% below the U.S. average: construction labor in the Pocatello area runs 13% below the national mean, materials 1% below. The same job averages $10,500 nationally and about $9,900 at the Idaho statewide index.
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HVAC replacement price in Pocatello by system type
What a 3-ton system costs in Pocatello with each system type, installed:
| Option | Average · range |
|---|---|
| Central AC + gas furnacesplit AC, matched coil and an 80,000 BTU furnace$3,227 per ton | $9,700$6,600 – $12,800 |
| Heat pump + air handlerall-electric split heat pump, no furnace$2,994 per ton | $9,000$6,050 – $11,900 |
| Cold-climate heat pump + air handlervariable-speed heat pump rated for deep winter$3,419 per ton | $10,300$6,900 – $13,600 |
The least expensive option in Pocatello is heat pump + air handler, at about $9,000; cold-climate heat pump + air handler averages $10,300, 1.1 times as much.
Cost to replace an HVAC system in Pocatello by size
With central AC + gas furnace, priced for Pocatello, ID:
| Size | Average · range |
|---|---|
| A 2-ton system$4,203 per ton | $8,400$5,750 – $11,100 |
| A 3-ton system$3,227 per ton | $9,700$6,600 – $12,800 |
| A 4-ton system$2,740 per ton | $11,000$7,450 – $14,400 |
Some costs stay the same whatever the size — load calculation and equipment sizing, mechanical permit and inspection, old system removed, refrigerant recovered — so a bigger job costs less per unit: $2,740 per ton for a 4-ton system against $4,203 for a 2-ton system.
What an HVAC replacement in Pocatello includes
Line by line, the $9,700 average for a 3-ton system breaks down like this: 32% labor, 65% materials and equipment, and $280 in permit fees passed through at cost.
| Line | Low – high |
|---|---|
| Load calculation and equipment sizing | $70 – $210 |
| Mechanical permit and inspection | $150 – $400 |
| Old system removed, refrigerant recovered | $320 – $560 |
| Gas furnace (about 80,000 BTU) | $1,400 – $2,500 |
| Outdoor unit, set on a new pad | $2,100 – $3,900 |
| Matched indoor coil | $910 – $1,950 |
| New refrigerant line set (25 ft) | $350 – $560 |
| Disconnect, whip and thermostat wire | $190 – $320 |
| Condensate drain and safety switch | $110 – $250 |
| Gas connection and furnace venting | $290 – $550 |
| Plenums and transitions to the ducts | $250 – $560 |
| Programmable or smart thermostat | $210 – $390 |
| Evacuation and refrigerant charge | $110 – $210 |
| Start-up and commissioning | $110 – $250 |
| Warranty registration and walk-through | $50 – $120 |
Each line is the price book's U.S. rate for that step, scaled by 0.76 to the installed price published sources give for the whole job (see how these prices are built), times Pocatello's index of 0.92; permit fees are not scaled.
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What affects HVAC replacement prices in Pocatello
Labor and materials in Pocatello
Construction wages in the Pocatello area run 13% below the U.S. mean (BLS, May 2025), and materials in its ZIP codes price 1% below the national average. Together they give Pocatello a construction cost index of 0.92.
Where Pocatello sits in Idaho
Pocatello is the 5th most expensive of the 5 Idaho cities in our index, against a statewide index of 0.94. Boise is the dearest at 0.97; no Idaho city in it costs less.
Against the rest of the country
Of the 306 U.S. cities in JobFlex's index, Pocatello ranks 242nd from the most expensive. The job that averages $9,700 here averages $10,500 at the national rate.
Climate a system is sized for in Idaho
Contractors size equipment for the local design temperatures. Across Idaho's counties the median is about 92°F on a hot summer day and 2°F on a cold winter night (ENERGY STAR county table), and your county can differ. Winters that cold are where a cold-climate heat pump or a furnace earns its price.
Sales tax in Idaho
Idaho's base state sales tax is 6%, and cities and counties can add their own. How it applies to a home-improvement contract varies, so ask whether a quote includes it. Prices on this page are before tax.
What a Pocatello contractor will ask before quoting
- Job type — new construction, replacement or upgrade — and the evidence for it
- Heating and cooling load for this house (not the old nameplate), tonnage, fuel and refrigerant
- Ducts, line set, circuit, gas line and flue: keep, fix or replace, each with its reason
- Water heater in scope, and whether it shared the old flue
- Panel main amps, free slots and the new equipment's MCA
- Permits, tests and incentives that apply in this state
HVAC replacement cost in other Idaho cities
A 3-ton system with central AC + gas furnace averages $9,700 in Pocatello; $10,200 in Idaho Falls, $10,100 in Coeur d'Alene, $10,200 in Meridian.
| City | Average · range |
|---|---|
| Idaho Falls, ID5% more | $10,200$6,950 – $13,400 |
| Coeur d'Alene, ID4% more | $10,100$6,900 – $13,300 |
| Meridian, ID5% more | $10,200$6,950 – $13,400 |
| Boise, ID5% more | $10,200$6,950 – $13,400 |
HVAC replacement price in Pocatello: questions
How much does a new HVAC system cost in Pocatello, ID?
About $9,700 for a 3-ton system with central AC + gas furnace, and most Pocatello quotes fall between $6,600 and $12,800. That is 8% below the U.S. average, where the same job averages $10,500.
What is the HVAC price per ton in Pocatello?
$2,202 to $4,253 per ton, about $3,227 on average with central AC + gas furnace. Smaller jobs cost more per unit, because the fixed costs are spread over less.
How much is a 4-ton system in Pocatello?
$7,450 to $14,400, about $11,000 on average, with central AC + gas furnace — $2,740 per ton.
Do you need a permit for HVAC replacement in Pocatello?
Yes — installing HVAC or fuel-burning equipment needs a permit nearly everywhere, Pocatello included. The prices on this page carry $150–$400 for the permit and inspection.
Does the price include sales tax in Idaho?
No. The prices here are before tax; Idaho's base state rate is 6%, plus any local rate.
What size HVAC system does a house in Pocatello need?
It is worked out with a Manual J load calculation for the house — included in the prices above — not from square footage alone. Here it is run against design temperatures of about 92°F in summer and 2°F in winter (the Idaho median).
Other home projects in Pocatello
HVAC replacement cost in Idaho
How these prices are built
Every price on this page comes from JobFlex's contractor price book: what a homeowner pays a licensed contractor for each step of the job, as a U.S. national average per unit, with the contractor's overhead and profit included and sales tax left out. The HVAC replacement is priced step by step, then multiplied by Pocatello's construction cost index of 0.92.
Where the price book's steps for an option add up to more than 20% over the installed price a published source gives for the whole job, every step but a permit fee is scaled down to the middle of that range: central AC + gas furnace × 0.76 (HomeCostCalcs 2026: $7,000–$14,000); heat pump + air handler × 0.76, following central AC + gas furnace; cold-climate heat pump + air handler × 0.76, following central AC + gas furnace.
The index weighs local construction wages (BLS Occupational Employment and Wage Statistics, May 2025) at 60% and the area's material prices (Craftsman ZIP-area factors) at 40%. Published indices for Pocatello, each on its own base: HUD 0.96, Craftsman 0.89. Treat any city figure as about ±5%; a contractor's quote for your house is the number to plan with.
Contractors in Pocatello build quotes like these with JobFlex's HVAC estimator.
- HomeCostCalcs 2026: furnace + AC replacement $7,000-$14,000 standard, $10,000-$20,000 high efficiency
- Today's Homeowner 2025: complete HVAC system install $5,000-$12,500