Furnace Replacement cost: Derry Village vs Dover (2026)
In 2026, Derry Village and Dover land on nearly identical furnace replacement pricing — about $6,350 either way.
Derry Village NH
Typically around $6,350
Dover NH
Typically around $6,350
Derry Village vs Dover: full breakdown
| Factor | Derry Village | Dover |
|---|---|---|
| Typical 2026 cost | $6,350 | $6,350 |
| Estimated range | $4,550–$8,150 | $4,550–$8,150 |
| Labor index (vs US) | ×1.05 | ×1.05 |
| Climate zone | Cold | Cold |
| Climate factor | ×1.08 | ×1.08 |
| Local permit | $250 | $250 |
| Labor share | $3,800 | $3,800 |
| Materials/equipment | $2,550 | $2,550 |
All figures are 2026 localized planning estimates for furnace replacement — get an actual quote before you commit.
Basically a tie — focus on the contractor
Neither metro has a cost edge on furnace replacement — spend your decision-making energy on the contractor, not the location.
Furnace replacement by type: Derry Village vs Dover
Each furnace replacement option, priced separately for both metros — the same local labor, climate and permit adjustments applied per city, so you can compare like for like.
| Type | Derry Village | Dover |
|---|---|---|
| Gas furnace | $4,450–$8,050 | $4,450–$8,050 |
| High-efficiency gas furnace | $4,000–$8,050 | $4,000–$8,050 |
| Electric furnace | $2,500–$5,350 | $2,500–$5,350 |
Treat these as 2026 localized estimates for furnace replacement, not quotes from a contractor.
Furnace replacement by home size: Derry Village vs Dover
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 | Derry Village | Dover |
|---|---|---|
| 1,000 sq ft (≈45,000 BTU) | $3,400–$6,150 | $3,400–$6,150 |
| 1,500 sq ft (≈68,000 BTU) | $4,000–$7,050 | $4,000–$7,050 |
| 2,000 sq ft (≈90,000 BTU) | $4,550–$8,150 | $4,550–$8,150 |
| 2,500 sq ft (≈110,000 BTU) | $5,250–$9,300 | $5,250–$9,300 |
| 3,000 sq ft (≈130,000 BTU) | $5,900–$10,450 | $5,900–$10,450 |
| 3,500+ sq ft (≈150,000 BTU) | $6,600–$11,550 | $6,600–$11,550 |
Treat these as 2026 localized estimates for furnace replacement, not quotes from a contractor.
Cheapest time for furnace replacement in either city
Installers cut prices in spring and fall because job volume drops and crews sit idle — the opposite happens during a summer heat wave or winter cold snap, when a dead system forces homeowners into a full-price emergency swap.
How much should you really budget for HVAC in 2026?
An HVAC budget isn't one number — it's a set of trade-offs between sizing accuracy, efficiency tier and brand. Our editors walk through how each one moves the price.
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.
The budget-first case
Size the system to your home with a Manual J calculation and buy the standard efficiency tier (80% AFUE / 14.3 SEER2). In a mild climate the cheaper unit pays off because you rarely run it hard — paying for premium efficiency you won't use is the most common way to overspend.
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 brand on the unit matters far less than getting the sizing and installation right. Insist on a Manual J calculation, match efficiency to your climate, and claim every rebate available.
Derry Village vs Dover
Is furnace replacement cheaper in Derry Village or Dover?
There's no meaningful difference: furnace replacement runs about $6,350 in both places.
Why does furnace replacement cost more in Dover than Derry Village?
It comes down to labor: Dover indexes at 1.05 against Derry Village's 1.05. The cold-vs-cold climate difference adds to the gap.
How much is furnace replacement in Derry Village, NH?
Expect to pay $4,550 to $8,150 for furnace replacement in Derry Village in 2026, averaging 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 Derry Village and Dover (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?
There's no cost argument here between Derry Village and Dover — they're a wash. Focus on contractor reputation, project scope, equipment tier and timing.
Compare furnace replacement in other cities
Updated June 2026 · By Serhat Özçelik