How Much Does Garbage Disposal Installation Cost in Novato, CA? (2026)

Average Cost

$415–$883

Materials

$151–$431

Labor (North Bay)

$168–$248

Labor rates in North Bay are +18% compared to Sacramento Metro baseline.

Garbage disposal installation includes removing any existing unit, mounting the new disposal on the sink flange, connecting the dishwasher drain line (if applicable), wiring the power supply, and testing the unit. We install disposals from 1/3 HP budget models up to 1 HP premium InSinkErator and Moen units. If your sink lacks a disposal-ready outlet, we coordinate electrical work for a switched outlet under the sink.

Novato is located in Marin County (North Bay). North Marin family-oriented city with 1960s–90s suburban neighborhoods. The local utility provider is PG&E.

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City

Disposals

Materials Included

Garbage Disposal (3/4 HP, InSinkErator or equiv.)1 unit

$110–$350

Mounting Assembly & Splash Guard1 kit

$15–$30

Discharge Tube & P-Trap Adapter1 kit

$12–$25

Power Cord Kit (3-prong, 3 ft)1 each

$10–$18

Plumber's Putty1 tube

$4–$8

Labor(North Bay +18%)

Licensed Plumber1.5h @ $112–$165/hr

$168–$248

Contractor Markup30%

0%Avg 30%100%

Materials

$151–$431

Labor

$168–$248

Markup

$96–$204

Estimated Total Cost

$415 – $883

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California Building Code

Garbage disposals must be connected to a switched outlet or a wall switch. The dishwasher drain connection requires a high loop or air gap per California Plumbing Code.

Project Timeline

Old Unit Removal

15-20 min

Disconnect power, remove the existing disposal or sink drain basket, and clean the sink opening for the new mounting assembly.

Mounting Assembly Installation

20-30 min

Apply plumber's putty to the sink flange, install the mounting ring and snap ring assembly, and tighten the mounting screws evenly.

Disposal & Drain Connection

20-30 min

Attach the disposal to the mounting ring, connect the discharge tube to the P-trap, punch out the dishwasher drain knockout (if applicable), and connect the dishwasher hose.

Electrical & Testing

15-20 min

Wire the power cord to the disposal, plug into the switched outlet, test operation with running water, and check for leaks at all connections.

Materials Breakdown

Material	Qty	Unit	Unit Cost	Total
Garbage Disposal (3/4 HP, InSinkErator or equiv.)	1	unit	$110–$350	$110–$350
Mounting Assembly & Splash Guard	1	kit	$15–$30	$15–$30
Discharge Tube & P-Trap Adapter	1	kit	$12–$25	$12–$25
Power Cord Kit (3-prong, 3 ft)	1	each	$10–$18	$10–$18
Plumber's Putty	1	tube	$4–$8	$4–$8

Garbage Disposal Installation in Novato — FAQ

What size garbage disposal do I need?+

For most NorCal households (2-4 people), a 3/4 HP disposal handles daily use well. Families of 5+ or those who cook frequently should consider 1 HP for quieter, more powerful grinding.

Can a garbage disposal be added to any sink?+

Most standard kitchen sinks with a 3.5-inch drain opening can accept a disposal. Undermount sinks and deep sinks may require specific mounting hardware.

Do I need a plumber or electrician for disposal installation?+

A plumber handles the full installation. If you need a new switched outlet under the sink, an electrician is needed first. We coordinate this for you.