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How Much Does HVAC Repair Cost in Idaho? (2026 Price Guide) Treasure Valley, North Idaho, and the East

HVAC repair in Idaho costs $140 to $650 for common furnace, AC, and swamp cooler fixes in 2026. Prices for the Treasure Valley, North Idaho, and Eastern Idaho.

How Much Does HVAC Repair Cost in Idaho? (2026 Price Guide) Treasure Valley, North Idaho, and the East

Idaho's three regions heat and cool their homes differently, and the repair bills follow. The Treasure Valley around Boise still has thousands of evaporative coolers on roofs alongside a fast-growing base of central air and heat pumps. North Idaho, from Coeur d'Alene to Sandpoint, leans on gas furnaces and heat pumps through long, snowy winters.

Eastern Idaho, from Idaho Falls to Pocatello, runs furnaces through some of the coldest weather in the lower 48. HVAC repair in the state costs $140 to $650 for most common problems in 2026, with diagnostic fees of $75 to $129 and larger repairs at $500 to $1,600.

Boise's growth has pushed Treasure Valley prices up faster than the rest of the state, and a repair in Meridian or Eagle now costs about what it does in Salt Lake City. North Idaho tracks Spokane pricing. Eastern Idaho and the rural counties are the least expensive parts of the state for base rates, with the usual rural trip charges for homes far from a shop.

Treasure Valley Prices

Boise, Meridian, Nampa, Caldwell, Eagle, and Kuna make up the bulk of Idaho's HVAC market, and prices there run at the top of the state range. Diagnostic fees are $89 to $129, and hourly labor at companies that bill hourly is $105 to $160. Most of the larger companies in the valley quote flat rates by repair.

Furnace repairs in the valley run $165 to $325 for an ignitor, $110 to $250 for a flame sensor, $425 to $800 for a standard blower motor, and $800 to $1,500 for a variable-speed ECM motor, which is common in the subdivisions built since 2010 across Meridian, Star, and south Boise. Control boards run $375 to $850 and inducer motors $425 to $825.

AC and heat pump repairs run $160 to $325 for a capacitor, $160 to $300 for a contactor, $375 to $700 for a condenser fan motor, and $600 to $1,500 for a refrigerant leak repair with a recharge. R-410A costs $95 to $155 per pound in the valley in 2026. Compressors are $1,600 to $3,000 and reversing valves on heat pumps $850 to $1,600.

Evaporative Coolers

Swamp coolers are still on the roofs of thousands of older homes in Boise's North End, the Bench, Nampa, and Caldwell, and they have their own repair economy. A pump replacement costs $125 to $250, a new float valve $100 to $200, and a motor $250 to $500. Replacing the pads at the spring startup is $75 to $200 depending on the cooler size, and a full winterization in October runs $75 to $150.

Coolers are cheap to fix but limited by the valley's summers, which now push past 100 degrees for weeks. A lot of Treasure Valley homeowners have added or switched to central air over the past decade, and a central AC installation in the valley costs $4,800 to $8,500 in 2026. Idaho Power offers rebates on high-efficiency AC and heat pumps.

North Idaho Prices

Coeur d'Alene, Post Falls, Hayden, Sandpoint, Moscow, and Lewiston price close to the Spokane market. Diagnostic fees are $79 to $115 and hourly labor $95 to $150. The winters are long, furnaces and heat pumps run hard from October into April, and the repair mix skews toward heating.

Furnace ignitors cost $150 to $300 installed in North Idaho, flame sensors $100 to $230, blower motors $400 to $750 standard or $750 to $1,400 ECM, and inducer motors $400 to $800. Heat exchangers run $1,400 to $3,000 to replace, which is the point where most North Idaho furnaces over 12 years old get replaced instead.

Heat pumps are common in the Panhandle, often as cold-climate units paired with electric or gas backup. Reversing valves run $800 to $1,550, defrost boards $275 to $525, and refrigerant leak repairs $575 to $1,450. Avista and Kootenai Electric both offer heat pump rebates that reduce replacement costs.

Ductless Systems in Lake Homes

Lake Coeur d'Alene, Lake Pend Oreille, and Priest Lake have a lot of cabins and older homes without ductwork, and ductless mini-splits are the common solution. Mini-split repairs run $375 to $775 for a control board, $300 to $600 for a fan motor, and $500 to $1,200 for a refrigerant leak. Not every North Idaho company services every mini-split brand, so ask before booking.

Eastern Idaho and Rural Prices

Idaho Falls, Pocatello, Rexburg, Twin Falls, and Burley have the lowest base rates in the state. Diagnostic fees run $75 to $105 and hourly labor $85 to $135. Furnace and AC repairs run 10 to 20 percent below Treasure Valley prices for the same part.

The trade-off is the winter. Eastern Idaho furnaces run more hours than furnaces anywhere else in the state, with Rexburg and Driggs seeing weeks below zero, and the parts that wear with use fail sooner. A furnace at 14 years in Idaho Falls is near the end, while the same furnace in Boise might go 18.

Rural addresses across the state pay trip charges. Homes more than 25 miles from a shop in the Magic Valley, the Wood River Valley, Salmon, or the Clearwater see $30 to $90 added to the diagnostic fee. Companies in the nearest town avoid the charge and should be the first call for routine work.

Sun Valley and Resort Areas

Ketchum, Sun Valley, and Hailey price above the rest of the Wood River Valley and closer to Boise, with diagnostic fees of $95 to $135. Radiant floor heat and boilers are common in the resort homes, and boiler repairs there run $450 to $1,000 for circulators, zone valves, and controls. McCall and Donnelly are similar, with a smaller pool of contractors and longer waits in winter.

Fees, Emergency Rates, and Plans

After-hours and weekend calls in Idaho cost $150 to $260 for the visit plus higher labor. The first cold week in November and the first triple-digit week in July are the busiest emergency periods in the Treasure Valley, and January cold snaps fill schedules in the north and east.

Maintenance plans cost $140 to $270 per year for a furnace and AC or a heat pump and include two tune-ups, a repair discount of 10 to 15 percent, and priority scheduling. For a Treasure Valley home with a swamp cooler and a furnace, some companies offer a plan that covers the cooler startup and winterization along with the furnace tune-up.

Reviewing HVAC contractors serving Idaho with recent reviews is the fastest way to find companies that work on the equipment in your part of the state. Our blog has more home service cost guides if you are budgeting for other fall work.

Deciding Between a Repair and a New System

Multiply the equipment's age by the repair estimate, and if it passes $5,000, replacement usually wins. A 15-year-old furnace in Nampa needing a $600 blower motor scores $9,000 and should be replaced. A 6-year-old heat pump in Coeur d'Alene with a $500 fan motor scores $3,000 and is worth fixing.

Replacement costs in Idaho in 2026 run $3,400 to $6,000 for a standard gas furnace, $5,000 to $8,500 for a 96 percent furnace, $6,000 to $11,000 for a heat pump, and $4,800 to $8,500 for central AC, with the Treasure Valley at the top of each range. Idaho Power, Avista, Intermountain Gas, and the electric cooperatives offer rebates of $150 to $800 on high-efficiency equipment.

Idaho's Contractor License and What to Ask

Idaho licenses HVAC contractors at the state level through the Division of Occupational and Professional Licenses, and any contractor installing or servicing equipment must hold an HVAC contractor license or work under one. Ask for the license number and check it. Permits are required for equipment replacement in most jurisdictions.

Get the estimate in writing, ask whether the part is on the truck, and ask about the labor warranty. For rural addresses, ask about the trip charge before booking. For anything over $800, a second opinion is worth the diagnostic fee, especially in the Treasure Valley where the number of contractors makes shopping easy.

Frequently Asked Questions

What is the HVAC diagnostic fee in Idaho?

$75 to $129 during business hours, with Boise, Sun Valley, and McCall at the top and eastern Idaho and rural areas at the bottom. After-hours calls run $150 to $260. Most companies credit the fee to the repair.

How much does it cost to repair a swamp cooler in Boise?

$100 to $500 for most repairs, including pumps, float valves, and motors. Spring startup with new pads runs $75 to $200 and fall winterization $75 to $150.

Are HVAC repairs cheaper in Idaho Falls than Boise?

Yes, by 10 to 20 percent for the same repair. Eastern Idaho has lower labor costs, though furnaces there run more hours and need repairs more often.

How long do furnaces last in Idaho?

15 to 18 years in the Treasure Valley and 13 to 16 in North and Eastern Idaho where they run more hours. Furnaces installed before 2010 are near the end of that range now.

Which utilities offer HVAC rebates in Idaho?

Idaho Power, Avista, Intermountain Gas, Rocky Mountain Power, and most electric cooperatives offer $150 to $800 on high-efficiency heat pumps, furnaces, and AC. Contractors typically file the paperwork.