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How much does a 80% AFUE furnace replacement cost in Gillette, WY?

An 80% AFUE furnace replacement in Gillette, WY
$3,588
reuses the existing metal flue — the cheapest like-for-like swap · typical range $2,833 – $4,910
Typical totalinstalled, 80 afue$3,588
Range you should see in bidsthree bids on the same scope normally land inside this$2,833 – $4,910
Labor portion40% of the job — this is the part that moves by city$1,435
Material portion60% — bought at national prices$2,153
Heating, Air Conditioning, and Refrigeration Mechanics and Installers pay near GilletteBLS does not publish a metro figure for heating, air conditioning, and refrigeration mechanics and installers near Gillette, WY, so this is the Wyoming state average, SOC 49-9021$55,760/yr
U.S. mean for the same tradeSOC 49-9021$64,780/yr
Versus the national pricetrade pay here runs −13.9% against the U.S. mean−$212
Design temperatures95°F summer and -14°F winter at Gillette-Campbell Cty 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 an 80% AFUE furnace replacement is $3,800 installed — gas furnace replacement pricing published for 2026. Labor is about 40% of that. Heating, Air Conditioning, and Refrigeration Mechanics and Installers near Gillette, WY average $55,760 a year against a U.S. mean of $64,780 — a factor of 0.861 — 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 Gillette, WY, so this is the Wyoming 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 Gillette, WY, 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. 95°F summer and -14°F winter at Gillette-Campbell Cty 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 furnace, removal and disposal of the old one, a new flue or vent kit, gas and electrical connections, a thermostat, permit and labor.
  • What is not: ductwork changes, a chimney liner where an 80% unit is orphaned by a water heater, and any return-air work the new blower needs. These are the lines that turn a $3,588 quote into a $4,485 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 national average for the job.

an 80% AFUE furnace replacement in Gillette, WY

$3,588 is the typical number, and three bids on the same scope normally land between $2,833 and $4,910.

That is $212 less than the same job priced at the national average.

Why the city changes the number

About 40% of this job is labor — $1,435 of the $3,588 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 Gillette average $55,760 a year, against a U.S. mean of $64,780. That is a factor of 0.861, 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 Gillette, WY, so this is the Wyoming 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 $3,588 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 $2,833 – $4,910, that is not automatically wrong — but it is the question worth asking out loud.

Nearby sizes

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