Air Conditioning Costs in Yakima
The price of a new air conditioner depends on size, efficiency and what your ducts need, so the range is wide.
October 7, 2026 · 3 min read

If you are shopping for a new or replacement air conditioner, the first question is usually how much it will cost. The honest answer is a range, and the range is wide because no two houses need the same equipment. Spring is a good time to buy, since installing before the busy summer season gives you a reliable, efficient system when you need it. This is what moves the price.
Size drives the price
The larger your home or building and the leakier its envelope, the larger and more expensive the air conditioner must be to hold temperature. Correct sizing matters for more than cost. An oversized unit cannot manage humidity well, and an undersized unit runs constantly and wears out sooner. The right size comes from a building assessment and a Manual J load calculation, not from square footage or from the unit that is there now. Equipment size is only one part of the price, because the type of unit, its efficiency rating and the warranty also shift the total.
Efficiency rating adds cost and saves money
Air conditioners are rated by SEER, the seasonal energy efficiency ratio. A higher rating costs more to buy and less to run. In effect, you trade a higher initial investment for lower monthly energy bills. The right choice depends on how much you use the system, how long you plan to stay and what you want your budget to look like today versus over the next ten years. In a climate like Yakima's, where cooling runs hard for months, the savings from a more efficient unit can be substantial.
Style matters as well. A conventional split system with a ducted indoor coil is the most common choice, but a home without ducts, an addition or a converted garage may be better served by ductless mini-split units, which cool and heat specific zones and avoid duct losses. Multi-zone ductless systems and larger VRF equipment for commercial buildings sit in a different price category again. Each approach has its own installation requirements, which is why two quotes that look far apart may be pricing different jobs.
Ductwork can change the picture
If your ducts are old, leaky, moldy or damaged by pests, they may need to be repaired or replaced, which adds cost. Fortunately ductwork costs much less than the air conditioner itself, and tight, correctly designed ducts improve performance and efficiency considerably. A new unit connected to bad ducts will not deliver what it should, so it is worth paying attention to this part of the job.
A realistic overall range
Taking everything together, a typical installed air conditioning system can fall somewhere between about $4,000 and $12,000, depending on unit size, equipment style and how complex the installation is. That is a general range, not a quote, and your own number could land inside or outside it. Key variables include:
- The size of the system your home needs, based on a load calculation
- The efficiency rating and style of the equipment you choose
- The condition of your ductwork and whether it needs repairs
- Electrical work, thermostat upgrades and other installation details
- Whether you need a ducted system or a ductless one for your layout
When you compare quotes, compare scope, not just the bottom line. Ask whether each one includes a load calculation, a duct inspection, electrical work, a thermostat, removal of the old equipment and registration of the manufacturer's warranty. The cheapest number is often the one that leaves something out.
Professional installation matters here. Equipment that is installed well runs safely and efficiently, and proper installation protects the manufacturer's warranty.
Offsetting the cost
Ask us about current Pacific Power and Cascade Natural Gas rebates, since ACT is a qualified trade ally for both, and about financing through Synchrony, Wells Fargo or Craft3. Those options can change which system makes sense for your budget.
ACT Heat & Air installs Mitsubishi, Trane and American Standard equipment, and our team counts over 125 years of combined experience. We install air-source and ground-source heat pumps and ductless systems, and we service all makes and models. Call (509) 388-2997 for a detailed quote in Yakima, Union Gap, Ellensburg, Prosser, Kennewick, Richland or Pasco.
Absolute Comfort Technology, (509) 388-2997
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