Furnace Replacement cost: Greenfield vs Madison (2026)
Budget-wise, furnace replacement in Greenfield ($6,350) runs 8% more than in Madison ($5,900), a roughly $450 spread.
Greenfield WI
Typically around $6,350
Madison WI
Lower costTypically around $5,900
Greenfield vs Madison: full breakdown
| Factor | Greenfield | Madison |
|---|---|---|
| Typical 2026 cost | $6,350 | $5,900 |
| Estimated range | $4,500–$8,150 | $4,200–$7,600 |
| Labor index (vs US) | ×1.05 | ×0.98 |
| Climate zone | Cold | Cold |
| Climate factor | ×1.08 | ×1.08 |
| Local permit | $200 | $200 |
| Labor share | $3,800 | $3,550 |
| Materials/equipment | $2,550 | $2,350 |
These are 2026 planning figures for furnace replacement, localized to each city — not formal quotes.
How much should this gap actually matter?
At 8%, this gap is small enough that it's usually swallowed by normal quote-to-quote variation for furnace replacement — focus on the contractor, not the city.
Furnace replacement by type: Greenfield vs Madison
Below, each furnace replacement option is priced independently for both cities, with identical local labor, climate and permit logic applied — so the comparison holds up.
| Type | Greenfield | Madison |
|---|---|---|
| Gas furnace | $4,400–$8,050 | $4,100–$7,450 |
| High-efficiency gas furnace | $3,950–$8,050 | $3,700–$7,450 |
| Electric furnace | $2,450–$5,300 | $2,300–$4,950 |
All figures are 2026 localized planning estimates for furnace replacement — get an actual quote before you commit.
Furnace replacement by home size: Greenfield vs Madison
Furnace cost scales with the heating capacity (BTU) your home needs — roughly 40–45 BTU per square foot in a mixed climate. Larger homes need a bigger unit and more ductwork.
| Size | Greenfield | Madison |
|---|---|---|
| 1,000 sq ft (≈45,000 BTU) | $3,400–$6,100 | $3,150–$5,700 |
| 1,500 sq ft (≈68,000 BTU) | $3,950–$7,000 | $3,700–$6,500 |
| 2,000 sq ft (≈90,000 BTU) | $4,500–$8,150 | $4,200–$7,600 |
| 2,500 sq ft (≈110,000 BTU) | $5,200–$9,300 | $4,850–$8,650 |
| 3,000 sq ft (≈130,000 BTU) | $5,850–$10,400 | $5,450–$9,700 |
| 3,500+ sq ft (≈150,000 BTU) | $6,550–$11,550 | $6,100–$10,750 |
These are 2026 planning figures for furnace replacement, localized to each city — not formal quotes.
What hvac pros earn in each metro
Roughly 60% of what you pay for furnace replacement is labor, which is why local wages explain most of the price gap. The numbers below are actual metro wages for skilled installers, sourced from BLS OEWS — not guesses.
Milwaukee-Waukesha metro · about 8% above the US average installer wage.
No BLS metro wage series for Madison; we use Wisconsin regional price parity instead.
Source: U.S. Bureau of Labor Statistics, OEWS metro wages for HVAC installers (used as a trade-labor index).
Cheapest time for furnace replacement in either city
Crews are busiest — and priciest — exactly when it's hottest or coldest, since that's when systems fail under load. Book in the mild months and you're negotiating from a position of choice, not a broken furnace.
How much should you really budget for HVAC in 2026?
Sizing, efficiency tier and brand pull a quote in different directions. Here's how our editors weigh the trade-offs that decide what you actually pay.
The longevity case
The single biggest cost driver isn't the brand — it's correct sizing and install quality. A properly sized, well-commissioned mid-tier system with annual maintenance outlasts an oversized premium unit that short-cycles. Spend on the install, not the badge.
The budget-first case
Run a Manual J load calculation, then buy the standard tier — 80% AFUE, 14.3 SEER2 — and stop there. Where summers are short and winters are gentle, the equipment idles most of the year, so premium efficiency never gets enough runtime to earn back its price. Paying for SEER2 you'll rarely tap is the classic way a mild-climate homeowner overspends.
The efficiency-first case
In a hot-summer or cold-winter region, a higher SEER2/AFUE unit — or a heat pump — earns its premium back in lower bills, and utility and state rebates can still cut into the sticker (the federal 25C/25D credits ended Dec 2025). Run the payback math before defaulting to the cheapest box.
Match the efficiency tier to your climate, insist on a real load calculation, and stack every rebate you qualify for. The expensive mistakes are wrong sizing and a rushed install — not picking the "wrong" brand.
Greenfield vs Madison
Is furnace replacement cheaper in Greenfield or Madison?
In 2026, furnace replacement is cheaper in Madison at about $5,900, versus $6,350 in Greenfield — a difference of about $450 (8%).
Why does furnace replacement cost more in Greenfield than Madison?
It comes down to labor: Greenfield indexes at 1.05 against Madison's 0.98. The cold-vs-cold climate difference adds to the gap.
How much is furnace replacement in Greenfield, WI?
In Greenfield, furnace replacement typically runs $4,500–$8,150 in 2026, with most homeowners paying around $6,350.
When is the cheapest time to buy furnace replacement — and does it differ by city?
It doesn't vary by location — Spring and fall (Mar–May, Sep–Oct) is the discount window in both Greenfield and Madison (roughly 5–15% off), while peak summer and mid-winter tends to be the most expensive in either city.
Should I choose where to live based on furnace replacement cost?
Rarely. The $450 difference is real but one-time, and you can often close most of it in Greenfield by buying in the off-season and getting tighter, apples-to-apples bids. Ongoing factors — energy prices, climate and home condition — matter more over the life of the system.
Compare furnace replacement in other cities
Updated June 2026 · By Serhat Özçelik