Cost to Garbage Disposal Installation in Seattle, WA

$237–$768 in Seattle

28% above the national average · 1.28x cost multiplier

In Seattle, a garbage disposal installation runs $237 to $768 on average — about 28% above what homeowners pay nationwide. The West Coast market's labor costs account for most of the gap, with material pricing and local permitting fees adding to the spread. Use the cost table below to compare budget, mid-range, and premium options side by side.

Cost Breakdown in Seattle

Line Item	Low	Mid	High
Cost per unit	$109	$480	$768
Materials	$128	$320	$640
Labor	$160	$256	$448
Permits	$0	$0	$0
Total	$288+28% vs. national avg	$576+28% vs. national avg	$1,088+28% vs. national avg

Budget

Basic 1/3-1/2 HP unit (InSinkErator Badger or similar) replacing an existing disposal on an existing circuit. No new wiring needed.

Mid-Range

3/4 HP mid-range unit (InSinkErator Evolution or Moen) with quiet operation, replacing existing disposal or doing first-time install with existing outlet nearby.

Premium

1 HP or higher premium unit with multi-stage grinding, quiet motor, and auto-reverse. First-time install requiring a new dedicated circuit from panel.

Material Options

Material prices below are national averages; availability in Seattle may shift costs slightly.

Material	Cost/Unit	Pros	Cons	Best For
1/3 HP Basic Disposal	$70-$110 unit only	Lowest cost, handles soft food waste	Loud, struggles with hard foods, shorter lifespan (5-7 years)	Rentals, light use, budget installsLowest cost, handles soft food waste
1/2 HP Standard Disposal	$100-$180 unit only	Good for most households, reliable	Can struggle with fibrous foods like celery	Most average householdsGood for most households, reliable
3/4 HP Mid-Range Disposal	$150-$280 unit only	Quieter, handles more food types, longer lifespan	Higher upfront cost	Families with regular kitchen useQuieter, handles more food types, longer lifespan
1 HP Premium Disposal	$250-$500 unit only	Very quiet, handles virtually all food waste, 8-12 year lifespan	Significantly higher cost	High-use households, premium kitchen remodelsVery quiet, handles virtually all food waste, 8-12 year lifespan
Septic-Safe Disposal	$200-$400 unit only	Adds septic enzymes to waste stream, designed for septic systems	More expensive, enzyme tablets add ongoing cost	Homes on septic systemsAdds septic enzymes to waste stream, designed for septic systems

Other Projects in Seattle

Full Kitchen Remodel

Full Bathroom Remodel

Composite Deck Building

Back to national average for Garbage Disposal Installation

Seattle Estimate

Typical Range

$237–$768

vs. National Average

28% above national

Cost Multiplier

1.28x

Cost Per unit

$109–$768

Estimates apply Seattle's 1.28x regional cost multiplier to national averages. Actual bids vary by contractor, project scope, and timing.

See national average costs →