How much does a 4-ton AC replacement cost in Butte, MT?
| Typical total$2,456 per ton | $9,825 |
|---|---|
| Range you should see in bidsthree bids on the same scope normally land inside this | $7,074 – $14,934 |
| Labor portion45% of the job — this is the part that moves by city | $4,421 |
| Material portion55% — bought at national prices | $5,404 |
| Heating, Air Conditioning, and Refrigeration Mechanics and Installers pay near ButteBLS does not publish a metro figure for heating, air conditioning, and refrigeration mechanics and installers near Butte, MT, so this is the Montana state average, SOC 49-9021 | $62,260/yr |
| U.S. mean for the same tradeSOC 49-9021 | $64,780/yr |
| Versus the national pricetrade pay here runs −3.9% against the U.S. mean | −$175 |
| Design temperatures88°F summer and -19°F winter at Butte / Valley Vista Mobile Home Community — 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 Butte, MT average $62,260 a year against a U.S. mean of $64,780 — a factor of 0.961 — so the labor half is scaled by that and the material half is not. Source: BLS does not publish a metro figure for heating, air conditioning, and refrigeration mechanics and installers near Butte, MT, so this is the Montana state average, SOC 49-9021.
- This one falls back to a wider average. BLS did not publish a metro-level wage for this trade near Butte, MT, so the figure above is a state average. It is still the right order of magnitude, but a local bid carries more weight here than it would in a large metro where the survey has more responses.
- Design temperatures. 88°F summer and -19°F winter at Butte / Valley Vista Mobile Home Community — 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 $9,825 quote into a $12,281 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 Butte, MT
$9,825 is the typical number, and three bids on the same scope normally land between $7,074 and $14,934.
That is $175 less than the same job priced at the national average.
Why the city changes the number
About 45% of this job is labor — $4,421 of the $9,825 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 Butte average $62,260 a year, against a U.S. mean of $64,780. That is a factor of 0.961, so the labor half is scaled by it and the material half is not.
Source: BLS does not publish a metro figure for heating, air conditioning, and refrigeration mechanics and installers near Butte, MT, so this is the Montana state average, 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 $9,825 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 $7,074 – $14,934, that is not automatically wrong — but it is the question worth asking out loud.
Nearby sizes
Read more
- Credits and Rebates — What They Reward and What Disqualifies a SystemThe equipment that qualifies and the equipment a contractor has on the truck are not always the same equipment.
- What Each Half-Ton Costs, and Why the Curve Is Flatter Than ExpectedThe price difference between a three-ton and a four-ton system is smaller than most people expect, which is part of why so many houses have four-ton systems.
- What You Are Actually Paying For in an AC ReplacementTwo quotes on the same house can differ by thousands. The difference is rarely margin and almost always what is included.
- Repair or Replace — Age, Refrigerant and the Cost of the FixA compressor quote on a fourteen-year-old R-22 system is not really a repair decision.