Climate
Zone 4C
Heating degree days per year, 1991–2020 normals. More means a bigger heating load.
4,597
Furnace replacement cost in Seattle, WA
Seattle, WAModel estimateLocal wages, prices and climateUpdated each quarter
What it costs in Seattle
Furnace replacement in Seattle, WA typically costs $5,800 for a 1,500–2,500 sq ft home. Most jobs land between $3,850 and $8,800. That is 7% above the US typical of $5,400, mainly because HVAC technicians here earn 31% more than the national median and goods and equipment cost 4% more than average. This is a model estimate from public wage, price and climate data; local prices sharpen it as people add theirs.
- Typical price
- $5,800
- Most jobs
- $3,850–$8,800
- Home size assumed
- 1,500–2,500 sq ft
- Price source
- Model estimate
- HVAC tech wage
- $38.51/hr
- Climate zone
- 4C
- Heating degree days
- 4,597
- Permit
- Required
What's in the price
How the typical price splits, at local wages and prices. A real quote should show the same parts.
Equipment · $3,983
69% of the typical price. Gas furnace. Mid-range brand at the regional minimum efficiency.
Labor · $1,421
25% of the typical price. Disconnect and remove old furnace; Set furnace, connect gas, venting, plenum transitions, wiring, start up. At local HVAC wages.
Permit · $186
The local mechanical permit and inspection, pulled by the contractor.
Haul-away · $210
Removing the old equipment and recovering its refrigerant, as the law requires.
Read the quote line by line
A complete quote lists everything on the left. The right-hand column is what is often left off and billed later.
Should be on the quote
- Gas furnace
- Disconnect and remove old furnace
- Set furnace, connect gas, venting, plenum transitions, wiring, start up
- Remove and haul away old furnace
- Permit and inspection
- Brand and model numbers
- Labor warranty in writing
Often extra
- Venting conversion 80% -> 95%+ (PVC intake/exhaust, condensate drain)
- Condensate pump (condensing furnace, no floor drain)
- Gas line extension or replacement
- New smart thermostat (unit)
- Electrical panel or wiring upgrades
- Ductwork repairs
Local factors
What moves the price in Seattle
The same four facts on every place page, so two places read side by side compare the same rows.
Freezing nights
Nights at 32°F or colder
A cold climate changes which heat pump you need.
28
Electricity
Puget Sound Energy Inc
Residential rate. It sets what an efficient system saves you each year.
14.6¢
Permit
Required for a replacement
The contractor pulls it and books the inspection.
—
Before you sign
Six things to check before you sign
Ask for model numbers
The outdoor and indoor model numbers let you check efficiency, warranty and compare quotes line for line.
Repair or replace
On systems over 12–15 years old, compare the repair against a replacement before you pay for a major part.
Permit
A permit is required here. Make sure it is on the quote.
Check the license
Look the contractor up in the state registry before you sign. Our quote check does it for supported states.
Rebates
0 active programs in the state. The federal 25C credit ended for systems installed after 2025.
Timing
Replacements are cheapest to book in spring and fall, before the first heat wave or cold snap.
Price it for your home
Home size
Typical installed price for this home in Seattle
$5,800
Equipment
Mid-range brand
$3,983
Labor
Local HVAC wages, BLS
$1,421
Permit
Typical local fee
$186
Haul-away
Old equipment and refrigerant recovery
$210
Heating, per year
Gas furnace $1,089 · heat pump $1,076
$1,089
Check my quote
An estimate from public wage, price and climate data, not a quote. Energy figures use local rates and weather normals.
Price financed
$5,800
Price financed
Every month
$96
Interest rate (APR)9.99%
Term84 months
If you finance it
What furnace replacement costs a month
Many HVAC quotes lead with a monthly payment. Put the quoted price, rate and term here to see what the loan adds, before you compare it with paying another way.
$2,286
in interest over 84 months, on top of the $5,800 price.
A 0% promotion over 18 months would be $322 a month. Many promotions charge all the deferred interest if a balance is left when the promotion ends, so check the terms. Standard amortized loan, no fees included.
Check a financed quoteQuestions
Furnace replacement: what people ask in Seattle
Checked on your deviceNothing is uploaded
HVACFIND Price Index 2026Q4.2
Updated every quarter
How much does furnace replacement cost in Seattle, WA?
Typically $5,800 for a 1,500–2,500 sq ft home. Most jobs fall between $3,850 and $8,800. Smaller homes start near $5,600; larger ones run about $6,000.
Is Seattle more expensive than average?
The typical price here is 7% above the US typical of $5,400. Local wages and prices drive most of the difference.
Is my quote fair?
Quotes between $3,850 and $8,800 are in the normal range here. Paste or upload yours into the free quote check: it compares the total, flags missing items and checks the contractor's license, all on your device.
Where do these numbers come from?
National line-item costs adjusted by local HVAC wages (BLS), regional prices (BEA), climate (NOAA) and permit fees, then corrected with real local prices as people share them. The methodology page has the details.
Second opinion
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