Gillette, WY HVAC Cost: Central Air and Heat Pump Prices (2027)
Adjust your home size & electric cost in Gillette, WY
Start with the house: 2,280 sq. ft. calls for about 42,000 BTU, a 3.5-ton unit. In Gillette, the 14 SEER version of that system costs $7,550 to $9,110 installed and gives the lowest ten-year total of the ratings we price. Gillette quotes tend to run about 0% below the statewide model; the city has roughly 33,000 residents.
Read the range as a standard swap. If the job needs new duct runs, a larger breaker or a condenser on a roof or wall bracket, the bid climbs from there.
Installed AC Prices in Gillette, 14 to 20 SEER
At the base of the ladder, 14 SEER runs $7,550 to $9,110 in Gillette. Two-stage 16 SEER costs $9,530 to $11,490, 18 SEER $15,410 to $18,580, and the 20 SEER top tier $20,750 to $25,020.
Gillette Next to the Wyoming Average, by SEER
| System (3.5 ton) | Gillette | Wyoming average | Materials |
|---|---|---|---|
| 14 SEER | $7,550 - $9,110 | $7,580 - $9,140 | $4,740 |
| 16 SEER | $9,530 - $11,490 | $9,560 - $11,530 | $5,920 |
| 18 SEER | $15,410 - $18,580 | $15,460 - $18,640 | $9,420 |
| 20 SEER | $20,750 - $25,020 | $20,820 - $25,100 | $12,610 |
The condenser, coil and parts come to about $4,740 on a 14 SEER job and $5,920 on a 16 SEER job; everything else in the Gillette price is installation.
Local Labor and the Gillette Price
Big markets pay crews more and spend more on parking, permits and travel time; small markets spend less but often have fewer bidders. That trims roughly $40 from a 16 SEER job compared with the Wyoming average of $9,560 to $11,530.
Whether you live near the center or the city line, the estimate holds for the 3 Gillette ZIP codes in Campbell County. Find out how many days the job takes, who schedules the inspection and what the labor warranty covers. Good answers usually mean a good installer.
Operating Cost and Payback for Gillette Homes
Power in Wyoming costs about $0.169 per kWh on average (about 22% below the national average of $0.217); your utility and plan may differ. Rates have not stood still: Wyoming power rose roughly 1.62% per year in our ten-year record, reaching about $0.20/kWh by 2036 if it keeps going.
Each line is one SEER rating; touch or hover a year to read its dollar figures. The climb is the 1.62% yearly increase WY rates showed over ten years.
The first point applies WY's current rate to this season; every point after it adds another year of the 1.62% average increase. Dollar figures are rounded up to the next $10.
Cooling this house with 16 SEER takes around 2,802 kWh per season, or about $480. The same summer on a 9 SEER unit costs about $840.
Upgrade Payback Finder: Your Old AC vs a New One
Set the two menus: the system in your house now and the one you are weighing. The math uses a 3.5-ton unit at Wyoming electric rates, $0.169/kWh and climbing 1.62% yearly.
| Installed price of the new system | $8,210 |
| Electricity saved, first year | $310 |
| Saved over 10 summers (rates rising) | $3,280 |
| Payback | 22.6 years |
| Net after 10 summers | -$4,940 |
Not on savings alone: 9 to 14 SEER is $4,940 short after 10 summers in WY.
These figures treat the whole install as the price of switching from a unit that still runs. For a dead unit, only the step up from a basic 14 SEER bid has to pay back.
Gillette: What Each Upgrade From 9 SEER Returns
| 9 SEER | 14 SEER | 16 SEER | 18 SEER | 20 SEER | |
|---|---|---|---|---|---|
| Installation Cost | - | $8,210 | $10,360 | $16,750 | $22,560 |
| Electric Usage / Yr | 4,959 kWh | 3,161 kWh | 2,802 kWh | 2,522 kWh | 2,299 kWh |
| Electric Cost / Yr | $840 | $540 | $480 | $430 | $390 |
| Energy Savings / Yr | - | $310 | $370 | $420 | $450 |
| Payback (Rates Rising) | - | 22.6 years | 23.5 years | 31.5 years | 37.0 years |
| 10-Year Net (Rates Rising) | - | -$4,940 | -$6,430 | -$12,320 | -$17,720 |
From a 9 SEER starting point, the quickest return in Gillette comes from 14 SEER, about 22.6 years.
Buy Price vs Ten Years of Power in Gillette
Buy Price vs 10-Year Running Cost: Total Cost of Ownership in WY
Three bars per rating: what it costs to install, what it costs to cool the house for 10 summers at Wyoming rates with the rate climbing 1.62% a year, and the sum. The rating with the shortest third bar costs the least to own. Tap or hover any bar to see the addition.
After 10 years, 14 SEER is the cheapest system to own in Wyoming: $13,960 all-in ($8,210 installed + $5,760 of electricity).
Includes energy inflation: electricity = this season's cost at today's WY rate, then each of the next nine seasons raised by the historic 1.62%/yr rate increase. Install = the typical installed price on this page. Each figure is rounded up to the next $10 on its own, so the two parts can add up to $10 more than the total.
Price a Central AC for Your ZIP Code
What Gillette Summers Ask of an Air Conditioner
Climate region 1 is where our map puts Wyoming. Across the state, summer days average near 84°F and winter nights near 11°F; Gillette sits at about 44.2° N. Cold months dominate the Gillette calendar; air conditioning matters mainly in the warm stretches of summer.
Climate zones run from 1 (cool) to 5 (hot); Wyoming is in Zone 1.
With little moisture to remove in Gillette, sizing can focus on peak afternoon heat.
Gillette lies about 210 miles north of Cheyenne; local weather and housing can differ from the state's largest city, so size for your house, not the region.
Replacing the AC and the furnace together in Gillette matches the indoor coil to the blower, which is how the cooling side reaches its rated efficiency. If a Gillette bid calls for more than the 3.5-ton estimate, ask to see the calculation behind the bigger number.
Ducts, Access and Layout in Gillette Homes
Homes in Wyoming range widely in age and style, and whether your Gillette house has sound ducts can move a quote more than any other factor. A Gillette installer may serve a big territory. Before you sign, ask how fast they answer a repair call, not just what the install costs.
Each ductless head hangs high on an inside wall and connects through one narrow wall opening, so older houses avoid torn-up plaster.
Booking the Job in Gillette
The gap between heating season and the first hot week is short in Gillette; booking early in spring gives you the best choice of dates. Refrigerant work requires EPA certification, and many Wyoming localities require a permit for equipment swaps, so check both before you sign.
Compare Another Wyoming City
Elsewhere in Wyoming, the same 16 SEER job costs:
- Cheyenne, WY, 210 mi south: $9,620 to $11,600
- Casper, WY, 100 mi southwest: $9,610 to $11,580
- Laramie, WY, 200 mi south: $9,530 to $11,480
Nearby places such as Rozet can use the Gillette figures as a starting point.
More on SEER ratings, rate trends and payback across the state: Wyoming HVAC cost guide. The AC size calculator sizes the system; the heat pump calculator compares what it costs to run.
These figures start from statewide data, then adjust for the size of Gillette. Collect written bids from licensed local firms before you choose.
Quick Answers
Figures below use Wyoming averages; energy prices as of October 2026.
Does a heat pump heat for less than natural gas in Wyoming?
Not in Wyoming at today's prices. Natural gas delivers 72,342 BTUs per dollar and a COP-3 heat pump 60,535. Power would need to fall under about 14.2¢ per kWh for the heat pump to win (the Wyoming average is 16.9¢), or the unit would need a higher COP.
Is electricity in Wyoming expensive compared with other states?
Wyoming pays 16.9¢ per kWh on average: 22% under the national figure of 21.7¢ and the 14th cheapest of 51. Cooling bills rise and fall with it.
Is a cold-climate heat pump needed in Wyoming?
Yes, plan on one. Winter lows in Wyoming average about 11°F statewide, where a standard heat pump loses much of its output. Cold-climate models keep heating below zero; size for the coldest nights.
What does a heat pump save over electric baseboard in Wyoming?
About two-thirds. At 16.9¢ per kWh (the Wyoming average), a million BTU of heat costs about $49.56 from baseboards and about $16.52 from a heat pump running at COP 3.
What is the best season to replace an AC or furnace in Wyoming?
Spring or fall, while the old system still runs. Winter lows near 11°F statewide mean heating work should wrap up by early fall. Crews are busiest in the first hot week and the first freeze, and a forced emergency swap leaves no time to compare bids.
Is it smart to replace the furnace and AC together?
When both are aging, generally yes: one visit, one labor charge, and a matched coil and condenser, which the efficiency rating assumes. If one is fairly new, price each job on its own.
Check it for your own home: Central AC cost estimator or Heat pump cost calculator.
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Wyoming HVAC costs (statewide) · HVAC costs in every state
