Budget planning guide

Furnace Installation cost in Seattle, WA

A transparent starter-scope range for homeowners planning furnace installation in Seattle, WA. Review the assumptions, then use the project estimator for your own scope.

Starter-scope range

$3,120$4,400

Planning midpoint: $3,670

The planning model applies a higher regional cost factor for this market.

What the model includes

Starter scope and assumptions

Adjust quantities for your project

80k BTU Furnace

1 each × $2,340

$2,340

Labor (install)

6 hr × $123.5

$740

Flue / Venting

1 lump sum × $390

$390

Thermostat

1 each × $195

$200

This is a budgeting example based on a defined starter scope, not a quote or a live survey of local bids. Actual pricing depends on measurements, site conditions, material choices, permits, contractor availability, and the final scope.