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How much does a 4-ton AC replacement cost in Lewiston, ID?

A central air conditioner replacement in Lewiston, ID
$9,169
4 tons · typical range $6,602 – $13,937
Typical total$2,292 per ton$9,169
Range you should see in bidsthree bids on the same scope normally land inside this$6,602 – $13,937
Labor portion45% of the job — this is the part that moves by city$4,126
Material portion55% — bought at national prices$5,043
Heating, Air Conditioning, and Refrigeration Mechanics and Installers pay near Lewistonabout $25/hr · Lewiston, ID-WA metro$52,820/yr
U.S. mean for the same tradeSOC 49-9021$64,780/yr
Versus the national pricetrade pay here runs −18.5% against the U.S. mean−$831
Design temperatures99°F summer and 13°F winter at Lewiston Nez Perce Co Airport — the two numbers a Manual J starts from, and the reason equipment sized for one city is wrong in another—

Notes

  • Where the number comes from. The national price for a central air conditioner replacement is $2,500 per ton — central AC replacement pricing published for 2026, $1,800–$3,800 per ton installed. Labor is about 45% of that. Heating, Air Conditioning, and Refrigeration Mechanics and Installers near Lewiston, ID average $52,820 a year against a U.S. mean of $64,780 — a factor of 0.815 — so the labor half is scaled by that and the material half is not. Source: BLS OEWS May 2025 for the Lewiston, ID-WA metro area, SOC 49-9021.
  • Why the city matters, not just the state. Trade pay moves inside a state as much as it does between states. Crews do not commute across a state to bid a job, and materials ship at national prices either way — so a metro wage is the honest input here and a state average quietly rounds four different cities into one number.
  • Design temperatures. 99°F summer and 13°F winter at Lewiston Nez Perce Co Airport — the two numbers a Manual J starts from, and the reason equipment sized for one city is wrong in another.
  • What is in the price: the condenser, the matching indoor coil, a new line set where the run allows, refrigerant charge, a pad, electrical connection, permit and labor.
  • What is not: ductwork repair or replacement, a new electrical circuit or panel capacity, asbestos abatement on old duct wrap, and any drywall work. These are the lines that turn a $9,169 quote into a $11,461 invoice, so ask about each one before signing.
  • Use this as a bid check, not a quote. It prices an average job in average condition. Difficult access, the state of what is being replaced, the season, and a crew booked out three months all move the real number, and none of them are in a per-unit average.

a central air conditioner replacement in Lewiston, ID

$9,169 is the typical number, and three bids on the same scope normally land between $6,602 and $13,937.

That is $831 less than the same job priced at the national average.

Why the city changes the number

About 45% of this job is labor — $4,126 of the $9,169 above. Labor is the only part that moves locally; a bundle of material costs what it costs wherever it is nailed down.

Heating, Air Conditioning, and Refrigeration Mechanics and Installers near Lewiston average $52,820 a year, against a U.S. mean of $64,780. That is a factor of 0.815, so the labor half is scaled by it and the material half is not.

Source: BLS OEWS May 2025 for the Lewiston, ID-WA metro area, SOC 49-9021.

What the quote should include

Design temperatures

The lines that turn a quote into an invoice

Ask about each of them before you sign. On a job this size they are the difference between $9,169 and something a quarter higher.

Use it as a bid check, not a quote

This prices an average job in average condition. Access, the state of what is being replaced, the season, and a crew booked out three months all move the real number, and none of them are in a national average.

If a bid lands outside $6,602 – $13,937, that is not automatically wrong — but it is the question worth asking out loud.

Nearby sizes

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