AC Installation Cost in Portland (2026): Central Air & Mini-Splits
HVAC6 min readLast updated: October 5, 2026
Quick answer
Central AC installation in Portland typically costs $5,300–$13,200, with most homeowners paying about $7,900–$9,650. A single-zone mini-split runs about $5,270.
Portland summers keep getting hotter, and more homeowners are adding air conditioning. 2026 guides put central AC installation in Portland at about $5,300 – $13,200, with most homeowners paying around $7,900 – $9,650.
Planning more work? Read our Portland plumbing cost guide, our best plumbers guide, our water heater cost guide, our emergency plumber guide, our HVAC cost guide, our sewer line cost guide, our furnace repair vs replace guide, our drain cleaning cost guide, our how to hire a plumber checklist, our mini-split cost guide, our heat pump cost guide, our repipe cost guide, our HVAC tune-up cost guide, and see our how to hire an HVAC contractor checklist.
Portland AC installation prices
| System | Typical Portland total |
|---|---|
| Window / portable units | about $1,580 |
| Ductless mini-split (single zone) | about $5,270 |
| Central AC (3-ton, 15 SEER2) | about $7,910 |
| High-efficiency central AC (18+ SEER2) | about $11,590 |
| Multi-zone mini-split | about $13,180 |
Source: HomeCostLens, Portland (Sept 2026).
Costadia's 2026 Portland estimate for central AC is $6,150 – $13,150, with most paying around $9,650, including about $250 for the permit.
Ways to save
- Book in spring or fall (Mar–May, Sep–Oct) — off-peak timing can save about 5–15%.
- Check federal tax credits and Energy Trust of Oregon incentives before signing.
- A heat pump can heat and cool — worth comparing if your furnace is also old.
People also ask
Q:How much does central air cost in Portland?
About $6,150–$13,150 (most around $9,650) per Costadia, or about $7,910 for a 3-ton system per HomeCostLens.
Q:When is the cheapest time to install AC?
Spring or fall — off-peak timing can save about 5–15%.
Q:How much is the AC permit?
About $250 in Portland.
Q:Is a mini-split cheaper than central AC?
A single-zone mini-split runs about $5,270; multi-zone systems can reach about $13,180.
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