What a New HVAC System Costs in Spokane, WA (2027)
Adjust your home size & electric cost in Spokane, WA
Our cost model puts a 14 SEER central air system in Spokane, WA at $8,950 to $10,790 with equipment and labor. It is sized at 3.5 tons (about 42,000 BTU) for a 2,180 sq. ft. house. Expect Spokane bids to land roughly 2% above the Washington average; the city has about 229,000 residents and the costs that come with that.
A clean replacement is what we priced: outdoor unit, indoor coil or air handler, refrigerant lines, wiring and removal of the old equipment. Duct repairs and electrical upgrades are separate line items on most bids.
Installed AC Prices in Spokane, 14 to 20 SEER
Here is the Spokane spread for one 3.5-ton system: 14 SEER $8,950 to $10,790, 16 SEER $11,290 to $13,610, 18 SEER $18,260 to $22,010, 20 SEER $24,590 to $29,640.
Price by Rating: Spokane and Statewide
| System (3.5 ton) | Spokane | Washington average | Materials |
|---|---|---|---|
| 14 SEER | $8,950 - $10,790 | $8,740 - $10,540 | $5,620 |
| 16 SEER | $11,290 - $13,610 | $11,030 - $13,300 | $7,010 |
| 18 SEER | $18,260 - $22,010 | $17,840 - $21,500 | $11,160 |
| 20 SEER | $24,590 - $29,640 | $24,020 - $28,960 | $14,940 |
Split a Spokane quote into parts and labor and the equipment side is about $5,620 for 14 SEER, $7,010 for 16 SEER.
The Spokane Price Adjustment, Explained
Big markets pay crews more and spend more on parking, permits and travel time; small markets spend less but often have fewer bidders. In numbers: a 16 SEER install that averages $11,030 to $13,300 across Washington comes to $11,290 to $13,610 in Spokane, about 2% more.
Every Spokane ZIP code we track, 24 of them in Spokane County, uses the prices on this page. Rebates from utilities and manufacturers come and go; ask which ones apply in Spokane this year and who files the paperwork.
The Running-Cost Side of the Spokane Decision
Power in Washington costs about $0.165 per kWh on average (about 24% below the national average of $0.217); your utility and plan may differ. Over the ten years in our data, Washington rates rose about 2.54% a year; at that pace the average would reach roughly $0.21/kWh by 2036.
Hover or tap any year to see what each rating costs to run that season. Rates rise 2.54% a year, the WA ten-year trend.
Starting point: this summer at WA's current rate. From there the rate grows 2.54% per year, compounded, and each season cost is rounded up to $10.
Expect about $570 a year to cool with 16 SEER in Spokane (3,404 kWh), against $1,000 with an old 9 SEER system.
Upgrade Payback Finder: Your Old AC vs a New One
Choose your current AC and a replacement rating. Every result assumes a 3.5-ton system and Washington electric rates ($0.165/kWh today, up 2.54% a year).
| Installed price of the new system | $9,730 |
| Electricity saved, first year | $370 |
| Saved over 10 summers (rates rising) | $4,050 |
| Payback | 20.8 years |
| Net after 10 summers | -$5,680 |
Not on savings alone: 9 to 14 SEER is $5,680 short after 10 summers in WA.
If the old unit still works, the full install price is the cost of the upgrade. If it has to be replaced anyway, compare the extra price over a 14 SEER bid with the extra savings.
Old 9 SEER vs New: Spokane Numbers
| 9 SEER | 14 SEER | 16 SEER | 18 SEER | 20 SEER | |
|---|---|---|---|---|---|
| Installation Cost | - | $9,730 | $12,270 | $19,850 | $26,720 |
| Electric Usage / Yr | 6,025 kWh | 3,841 kWh | 3,404 kWh | 3,065 kWh | 2,793 kWh |
| Electric Cost / Yr | $1,000 | $640 | $570 | $510 | $470 |
| Energy Savings / Yr | - | $370 | $440 | $490 | $540 |
| Payback (Rates Rising) | - | 20.8 years | 21.6 years | 28.3 years | 32.7 years |
| 10-Year Net (Rates Rising) | - | -$5,680 | -$7,410 | -$14,360 | -$20,730 |
In Spokane, 14 SEER gives the best mix of price and savings: about 20.8 years to recover its cost against an old 9 SEER unit.
Buy Price vs Ten Years of Power in Spokane
Buy Price vs 10-Year Running Cost: Total Cost of Ownership in WA
Install price plus ten seasons of electricity at Washington rates, growing 2.54% yearly, gives the real price of each system. Compare the total bars: the shortest one wins. Hover or tap for the breakdown.
Cheapest over 10 years in Washington: 14 SEER at $16,840 all-in, made of $9,730 to install plus $7,120 to run.
How the electricity bar is built: this season at today's WA rate, then nine more seasons, each raised by the 2.54% yearly increase WA has averaged. Install is the typical price shown on this page. Every figure is rounded up to the next $10 separately, which can leave the parts $10 over the total.
Price a Central AC for Your ZIP Code
See costs in your area
Start Here - Enter Your Zip Code
Matching the System to Spokane Weather
In Washington, which our map files under climate region 2, summer days average roughly 80°F and winter days roughly 37°F. Those statewide figures feed the Spokane numbers. With warm summers and freezing winters, Spokane homes need balanced equipment; compare the heating rating (HSPF or AFUE) alongside SEER.
Climate zones run from 1 (cool) to 5 (hot); Washington is in Zone 2.
Since Spokane summers are usually dry, a well-sized AC cools efficiently without long dehumidifying cycles.
From Seattle, Spokane is about 230 miles to the east, and this guide prices the two markets separately.
Most of a Spokane winter is within a standard heat pump's comfort zone; whether the backup should be natural gas or electric depends on local rates. Older units were often oversized, so a Spokane installer who copies the old tonnage may repeat the mistake. Ask for a load calculation.
What Spokane Housing Means for the Job
A quick duct check during the Spokane estimate visit can catch leaks or weak returns before they limit a new system. Most Spokane jobs are detached houses with open yard space for the condenser, which keeps the install simple.
One outdoor unit can feed several ductless heads, a common fix for Spokane homes without ducts.
When Spokane Installers Have Room
The same crew that hurries through a July job can take its time in May or October. Book Spokane work in those shoulder months if you can. Refrigerant work requires EPA certification, and many Washington localities require a permit for equipment swaps, so check both before you sign.
Elsewhere in Washington
The 16 SEER price in nearby Washington cities:
- Seattle, WA (west, 230 mi): $11,470 to $13,830
- Tacoma, WA (west, 240 mi): $11,400 to $13,740
- Vancouver, WA (southwest, 280 mi): $11,270 to $13,580
- Bellevue, WA (west, 220 mi): $11,340 to $13,670
Homeowners in Spokane Valley, Fairwood, Airway Heights, Marshall and Colbert can plan with the Spokane prices.
More on SEER ratings, rate trends and payback across the state: Washington HVAC cost guide. The AC size calculator sizes the system; the heat pump calculator compares what it costs to run.
Figures are planning estimates. Your price depends on the house, the equipment, the ducts and the contractor; get a Manual J load calculation before you buy.
Quick Answers
Figures below use Washington averages; energy prices as of October 2026.
Does a heat pump heat for less than natural gas in Washington?
It does in Washington: 62,001 BTUs per dollar from a COP-3 heat pump against 52,434 from natural gas. Electricity would have to pass about 19.5¢ per kWh to erase that (the Washington average is 16.5¢). Expect the edge to thin in cold snaps, when heat pump efficiency falls.
Is electricity in Washington expensive compared with other states?
Washington pays 16.5¢ per kWh on average: 24% under the national figure of 21.7¢ and the 10th cheapest of 51. Cooling bills rise and fall with it.
Is a cold-climate heat pump needed in Washington?
Worth considering. Washington winter lows average about 26°F, mild enough for a standard unit most nights, cold enough that a cold-climate model or a backup source earns its keep in a freeze.
What does a heat pump save over electric baseboard in Washington?
About two-thirds. At 16.5¢ per kWh (the Washington average), a million BTU of heat costs about $48.39 from baseboards and about $16.13 from a heat pump running at COP 3.
What is the best season to replace an AC or furnace in Washington?
Spring or fall, while the old system still runs. The first heat wave and the first cold snap fill every installer's calendar; replacing on your own schedule leaves room to compare quotes.
Is it smart to replace the furnace and AC together?
Often. Two old units replaced in one visit share the labor, and the indoor coil gets matched to the outdoor unit as the rating requires. A young furnace or AC can stay; quote the other separately.
Check it for your own home: Central AC cost estimator or Heat pump cost calculator.
More HVAC Cost Guides
Washington HVAC costs (statewide) · HVAC costs in every state
