Madison, WI HVAC Cost: Central Air and Heat Pump Prices (2027)
Adjust your home size & electric cost in Madison, WI
A 3-ton, 14 SEER system is our pick for a typical 1,820 sq. ft. home in Madison, and it installs for $7,780 to $9,380. That capacity works out to roughly 33,000 BTU. With roughly 280,000 residents, Madison carries big-market labor and overhead, so its figures run 3% higher than the Wisconsin baseline.
That figure covers a like-for-like change-out on ducts that still work: new condenser and matched coil, line set, electrical hookup, haul-away and startup. New ductwork, a panel upgrade or permit fees get priced on top.
Buying Central Air in Madison: The Price Ladder
At the base of the ladder, 14 SEER runs $7,780 to $9,380 in Madison. Two-stage 16 SEER costs $9,820 to $11,840, 18 SEER $14,500 to $17,470, and the 20 SEER top tier $18,640 to $22,470.
Price by Rating: Madison and Statewide
| System (3 ton) | Madison | Wisconsin average | Materials |
|---|---|---|---|
| 14 SEER | $7,780 - $9,380 | $7,580 - $9,140 | $4,900 |
| 16 SEER | $9,820 - $11,840 | $9,570 - $11,540 | $6,120 |
| 18 SEER | $14,500 - $17,470 | $14,120 - $17,020 | $8,900 |
| 20 SEER | $18,640 - $22,470 | $18,160 - $21,890 | $11,370 |
Most of what you pay is not the box: equipment runs about $6,120 on a 16 SEER install, and labor plus overhead carry the balance.
Why a Madison Quote Reads Differently
Two identical systems can draw different quotes in two Wisconsin cities, because labor and overhead are set locally. The Wisconsin average for 16 SEER is $9,570 to $11,540; with the 3% city adjustment, Madison lands at $9,820 to $11,840.
The same estimate covers all 34 ZIP codes with a Madison mailing address in our database, in Dane County. Equipment warranties often need registration within a set window. Ask the installer to register the unit and to put the labor warranty in writing.
Operating Cost and Payback for Madison Homes
At $0.228 per kWh, about 5% above the national average of $0.217, Wisconsin electricity sets how fast efficiency pays for itself. Because Wisconsin rates grew about 2.49% a year over the last decade, each SEER point saves a little more every summer.
Hover or tap any year to see what each rating costs to run that season. Rates rise 2.49% a year, the WI ten-year trend.
Starting point: this summer at WI's current rate. From there the rate grows 2.49% per year, compounded, and each season cost is rounded up to $10.
Season by season, 16 SEER uses about 2,263 kWh in Madison, near $520; a 9 SEER unit would run up about $920.
Upgrade Payback Finder: Your Old AC vs a New One
Choose your current AC and a replacement rating. Every result assumes a 3-ton system and Wisconsin electric rates ($0.228/kWh today, up 2.49% a year).
| Installed price of the new system | $8,460 |
| Electricity saved, first year | $340 |
| Saved over 10 summers (rates rising) | $3,720 |
| Payback | 20.0 years |
| Net after 10 summers | -$4,740 |
Not on savings alone: 9 to 14 SEER is $4,740 short after 10 summers in WI.
If the old unit still works, the full install price is the cost of the upgrade. If it has to be replaced anyway, compare the extra price over a 14 SEER bid with the extra savings.
Old 9 SEER vs New: Madison Numbers
| 9 SEER | 14 SEER | 16 SEER | 18 SEER | 20 SEER | |
|---|---|---|---|---|---|
| Installation Cost | - | $8,460 | $10,680 | $15,760 | $20,260 |
| Electric Usage / Yr | 4,001 kWh | 2,545 kWh | 2,263 kWh | 2,044 kWh | 1,868 kWh |
| Electric Cost / Yr | $920 | $590 | $520 | $470 | $430 |
| Energy Savings / Yr | - | $340 | $400 | $450 | $490 |
| Payback (Rates Rising) | - | 20.0 years | 20.9 years | 25.6 years | 28.9 years |
| 10-Year Net (Rates Rising) | - | -$4,740 | -$6,240 | -$10,760 | -$14,810 |
Swapping a working 9 SEER unit for a 14 SEER system pays back in about 20.0 years in Madison, counting the rate trend.
Buy Price vs Ten Years of Power in Madison
Buy Price vs 10-Year Running Cost: Total Cost of Ownership in WI
For each SEER rating: the installed price, 10 years of cooling electricity at Wisconsin rates (rising 2.49% a year), and the two added together. The shortest total bar is the cheapest system to own. Hover or tap a bar for the math.
Lowest 10-year total in Wisconsin: 14 SEER, $14,960 ($8,460 up front, $6,500 in electricity).
Includes energy inflation: electricity = this season's cost at today's WI rate, then each of the next nine seasons raised by the historic 2.49%/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
Matching the System to Madison Weather
Climate region 1 is where our map puts Wisconsin. Across the state, summer days average near 82°F and winter nights near 7°F; Madison sits at about 43.1° N. Short summers mean a Madison air conditioner logs fewer hours than most, and a top-tier SEER takes longer to earn back its price.
Climate zones run from 1 (cool) to 5 (hot); Wisconsin is in Zone 1.
Madison sits toward the south end of the Wisconsin cities we cover, which shifts more of the HVAC budget toward cooling.
Moisture removal matters in Madison; a correctly sized system with long, steady cycles keeps indoor humidity down.
From Milwaukee, Madison is about 70 miles to the west, and this guide prices the two markets separately.
Shopping for a heat pump in Madison? Ask for a model rated for cold-climate output and for the installer's plan for backup heat. Climate sets the baseline and the house sets the answer: a tight 1,820 sq. ft. home in Madison may need less than 3 tons, a leaky or sun-heavy one more.
Before the Quote: Your Madison House
Even with ducts in place, older Madison systems often have undersized returns or leaky joints worth fixing during the swap. In Madison, equipment choice and duct condition drive most of the difference between quotes.
Each ductless head hangs high on an inside wall and connects through one narrow wall opening, so older houses avoid torn-up plaster.
When Madison Installers Have Room
Book AC work in Madison during spring, ahead of a short but busy cooling season. A licensed Wisconsin contractor who pulls the permit gives you a record to point to if a problem shows up later.
Nearby Wisconsin Markets
Installed 16 SEER prices in other Wisconsin cities, each with its own market adjustment:
- Milwaukee, WI, 70 mi east: $9,920 to $11,950
- Green Bay, WI, 120 mi northeast: $9,690 to $11,690
- Kenosha, WI, 85 mi southeast: $9,680 to $11,670
- Racine, WI, 85 mi east: $9,750 to $11,750
The Madison estimate also gives a fair first number for McFarland, Middleton, Waunakee, Cottage Grove and Sun Prairie.
These Madison figures come from the same model as our Wisconsin HVAC cost guide, which goes deeper on SEER and long-term cost. 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 Madison. Collect written bids from licensed local firms before you choose.
Quick Answers
Figures below use Wisconsin averages; energy prices as of October 2026.
Does a heat pump heat for less than natural gas in Wisconsin?
No, natural gas still wins in Wisconsin: 79,885 BTUs per dollar against 44,897 for a heat pump at COP 3. The break-even power price is about 12.8¢ per kWh, and the Wisconsin average is 22.8¢. A more efficient heat pump narrows the gap.
Is electricity in Wisconsin expensive compared with other states?
At 22.8¢ per kWh, Wisconsin runs 5% over the national figure of 21.7¢, the 18th most expensive among the 50 states and DC. Every AC and heat pump cost on this page moves with that rate.
Is a cold-climate heat pump needed in Wisconsin?
Yes, plan on one. Winter lows in Wisconsin average about 7°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 Wisconsin?
About two-thirds. At 22.8¢ per kWh (the Wisconsin average), a million BTU of heat costs about $66.82 from baseboards and about $22.27 from a heat pump running at COP 3.
What is the best season to replace an AC or furnace in Wisconsin?
The shoulder seasons, spring and fall, ahead of need. Winter lows near 7°F statewide mean heating work should wrap up by early fall. The first heat wave and the first cold snap fill every installer's calendar; replacing on your own schedule leaves room to compare quotes.
Is it smart to replace the furnace and AC together?
Often. Two old units replaced in one visit share the labor, and the indoor coil gets matched to the outdoor unit as the rating requires. A young furnace or AC can stay; quote the other separately.
Check it for your own home: Central AC cost estimator or Heat pump cost calculator.
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Wisconsin HVAC costs (statewide) · HVAC costs in every state
