Furnace Replacement cost: Billings vs Missoula (2026)
In 2026, furnace replacement is about 1% more expensive in Billings than in Missoula. Most homeowners pay around $5,750 in Billings versus $5,700 in Missoula — a gap of roughly $50.
Billings MT
Typically around $5,750
Missoula MT
Lower costTypically around $5,700
Billings vs Missoula: full breakdown
| Factor | Billings | Missoula |
|---|---|---|
| Typical 2026 cost | $5,750 | $5,700 |
| Estimated range | $4,100–$7,400 | $4,050–$7,300 |
| Labor index (vs US) | ×0.95 | ×0.94 |
| Climate zone | Cold | Cold |
| Climate factor | ×1.08 | ×1.08 |
| Local permit | $200 | $200 |
| Labor share | $3,450 | $3,400 |
| Materials/equipment | $2,300 | $2,300 |
These are 2026 planning figures for furnace replacement, localized to each city — not formal quotes.
Is the price difference a dealbreaker?
That 1% gap is small — for furnace replacement it's usually less than the spread between two local contractors' quotes, so the metro matters far less than who you hire and when you buy.
Furnace replacement by type: Billings vs Missoula
We localize each furnace replacement type separately for both metros, applying the same labor, climate and permit adjustments each time, so you're comparing like for like.
| Type | Billings | Missoula |
|---|---|---|
| Gas furnace | $4,000–$7,300 | $3,950–$7,200 |
| High-efficiency gas furnace | $3,600–$7,300 | $3,550–$7,200 |
| Electric furnace | $2,250–$4,850 | $2,250–$4,750 |
These are 2026 planning figures for furnace replacement, localized to each city — not formal quotes.
Furnace replacement by home size: Billings vs Missoula
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 | Billings | Missoula |
|---|---|---|
| 1,000 sq ft (≈45,000 BTU) | $3,100–$5,550 | $3,050–$5,500 |
| 1,500 sq ft (≈68,000 BTU) | $3,600–$6,350 | $3,550–$6,300 |
| 2,000 sq ft (≈90,000 BTU) | $4,100–$7,400 | $4,050–$7,300 |
| 2,500 sq ft (≈110,000 BTU) | $4,700–$8,450 | $4,650–$8,300 |
| 3,000 sq ft (≈130,000 BTU) | $5,350–$9,450 | $5,300–$9,350 |
| 3,500+ sq ft (≈150,000 BTU) | $5,950–$10,500 | $5,900–$10,350 |
Furnace replacement numbers here are 2026 planning ranges, adjusted per city — useful for budgeting, not a substitute for an actual quote.
Cheapest time for furnace replacement in either city
Demand for HVAC work falls off a cliff in the shoulder months, and contractors discount to keep their crews booked. Wait for a 100-degree day or a hard freeze, though, and you're paying emergency rates for a system that just quit.
How much should you really budget for HVAC in 2026?
Get the sizing wrong or the efficiency tier mismatched to your climate, and the price drifts fast in either direction. Below, a look at how those choices — plus brand markup — shape the real number.
The longevity case
Brand is a footnote; sizing and install quality write the story. A right-sized mid-tier system that's properly commissioned and serviced once a year will outlive an oversized premium unit that short-cycles itself to an early grave. Put the money into the crew and the setup rather than the nameplate.
The efficiency-first case
Where you face brutal summers or hard winters, a higher SEER2/AFUE system or a heat pump runs enough hours to claw back its premium through lower bills — and utility or state rebates can still trim the sticker even though the federal 25C/25D credits closed at the end of 2025. Do the payback arithmetic before you reach for the cheapest box on the lot.
The budget-first case
In a temperate region the smart move is to size the job correctly with a Manual J and take the base efficiency tier. A system that spends most days coasting can't recover the cost of a high-SEER2 compressor, because the savings only show up under heavy load you don't put on it. Match the equipment to how little you actually run it, not to the brochure's top number.
Climate decides the efficiency tier; a proper load calculation decides everything else. Nail both, stack the rebates you can, and you've sidestepped the two mistakes — wrong size, rushed install — that actually inflate the lifetime cost.
Billings vs Missoula
Is furnace replacement cheaper in Billings or Missoula?
Missoula comes out ahead here, at roughly $5,700 for furnace replacement compared with $5,750 in Billings — a 1% ($50) gap as of 2026.
Why does furnace replacement cost more in Billings than Missoula?
Labor rates explain most of it — 0.95 in Billings vs 0.94 in Missoula. A cold climate versus cold accounts for the rest.
How much is furnace replacement in Billings, MT?
Expect to pay $4,100 to $7,400 for furnace replacement in Billings in 2026, averaging around $5,750.
When is the cheapest time to buy furnace replacement — and does it differ by city?
Timing doesn't change by city here — Spring and fall (Mar–May, Sep–Oct) is the cheapest window in both Billings and Missoula, saving roughly 5–15%. Avoid peak summer and mid-winter in either location, when emergency replacements push prices up.
Should I choose where to live based on furnace replacement cost?
Rarely. The $50 difference is real but one-time, and you can often close most of it in Billings 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