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CostGarbage Disposals

How much does garbage disposal installation cost in Virginia?

It is the unit plus labor. When we checked on October 26, 2026, InSinkErator listed its home disposals at $129 to $399 MSRP. Labor depends mostly on whether it is a plug-in swap on the existing mount and drain, or a first install that needs new drain parts, a dishwasher connection or a new outlet. Get an itemized written quote.

Free to ask. Local shops send quotes, and you pay only when you book one.

By Kasra Taheri, Founder, LoclisPublished

Researched and drafted with AI, then checked claim by claim against the sources listed below before it was published. Prices and rules change; the dates beside each source say when it was last checked.

Step by step

Read when to stop and call a pro, further down this page, before you start.

  1. Step 1: Read the old unit's label

    Note the brand, model and horsepower on the label of the disposal you have now, so quotes can be compared on the same replacement.

  2. Step 2: Check the warranty first

    If the old unit is still within its warranty, call the maker before paying anyone, since an in-home warranty may cover parts and labor.[3]

  3. Step 3: Look at the power

    Check whether the disposal plugs into an outlet under the sink or is wired straight in, because a new outlet or switch can add an electrician's time.

  4. Step 4: Count the connections

    Note whether a dishwasher drains into the disposal and whether there is a disposal there at all today, since a first install needs more drain parts.

  5. Step 5: Ask for written quotes

    Get at least three written quotes on the same specification so the prices can be compared line by line.[11]

  6. Step 6: Check the licence

    Look up each business on DPOR's licence lookup and confirm a plumbing licence, and ask who will do any wiring.[12]

A garbage disposal installation costs the price of the unit plus the installer's labor, and the labor is what varies. A plug-in replacement that drops onto the old mount and reuses the same drain and outlet is short work. A first install, a hardwired unit, or a dishwasher hookup that needs new parts takes longer and can bring in a second trade. Here is what each part of the price depends on, and what to ask for in writing.

A black garbage disposal under a double kitchen sink, connected to white plastic drain pipes and a dishwasher hose and plugged into an outlet below
Photo: Tony Webster, CC BY 2.0, via Wikimedia Commons

What the unit costs

Manufacturer list prices give a reference point. When we checked InSinkErator's own comparison chart on October 26, 2026, its home disposals were listed at MSRPs from $129 for the 1/3-horsepower Badger 1 to $399 for the 1.0-horsepower Evolution with LED.[1] In between, the 1/2-horsepower Badger 5 was $149 and the 3/4-horsepower Badger 5XP was $179.[1] InSinkErator notes that "the listed price may differ from actual selling prices in your area."[1] On October 26, 2026, InSinkErator's replacement guide put the cost of a new kitchen disposal at roughly $100 to $450.[2] Treat both as snapshots, not quotes.

Price tracks motor size, grind stages, noise insulation and warranty. The in-home limited warranty runs from 2 years on the Badger 1 to 10 years on the 1.0-horsepower Evolution models.[1] InSinkErator says the warranty covers replacement parts and labor,[3] so a failed unit that is still in its warranty period may not cost you anything. It also says it excludes damage from failing to install the unit according to the maker's instructions or local electrical and plumbing codes,[3] which is one reason to have it installed properly.

What drives the labor

Swap or first install. A replacement that fits the existing mount saves time: InSinkErator says its Badger models can be swapped for any other Badger or Evolution model thanks to similar plumbing rough-in dimensions.[2] A different mount means a new sink flange in fresh putty. A first install is more work again. InSinkErator's first-install steps start by taking out the existing P-trap and horizontal extension pipe and the sink's strainer,[4] and the drain then has to be rebuilt to suit the disposal.

Power. A plug-in unit needs a grounded outlet under the sink. If the new unit comes without a cord, a cord kit needs a three-wire grounded receptacle within 3 feet of the disposal.[5] A hardwired disposer needs a switch with a marked Off position installed within sight of the sink opening.[3] A missing outlet or new wiring may mean an electrician's visit as well as the plumber's, unless the plumber's licence covers that wiring as incidental work (see below), and two trips usually cost more than one.

Drain height. InSinkErator says the drain line should slope at least 1/4 inch per foot from the disposal down to the drain connection.[3] If the drain in the wall sits too high for that, the installer has to change the piping, which is more than a swap.

The dishwasher. If the dishwasher drains through the disposal, the installer has to knock out the unit's dishwasher plug, and the connection may run through an air gap.[3][4] Ask whether the dishwasher hookup is in the price.

A septic system. If your home is on septic, the Virginia Department of Health advises septic owners to eliminate or limit the use of a garbage disposal.[6] If you still want one, septic-specific models cost more: InSinkErator's chart lists the Evolution Septic Guard at $359.[1] EPA adds that if you must use a garbage disposal with a septic system, the tank will need to be pumped more frequently,[7] which is an ongoing cost.

Access and haul-away. A cramped cabinet, a corroded old drain that crumbles when it is touched, or removing and disposing of the old unit all add time.

Licences and permits

Hire a licensed plumber. Virginia defines a tradesman as someone who works for the general public for compensation in the electrical, plumbing or HVAC trades,[9] and no individual may do that work without a tradesman licence, unless working under the supervision of a licensed tradesman in that specialty.[8] If an outlet or switch has to be added, that part is electrical work. The same section says someone licensed in one specialty does not need a tradesman licence in another specialty "when performing work which is incidental to work being performed under their own specialty license."[8] Ask whether the plumber will do the wiring under that rule or bring in a licensed electrician, and get it in the quote.

On permits, Virginia's building code requires a permit for installations or alterations involving the sanitary drainage system or electric wiring.[10] A first install with new drain parts or a new outlet may need one; ask whether the quote includes the permit and inspection, and check with your local building department.

What to ask for in a written quote

DPOR notes: "Virginia law requires all licensed contractors to provide a written contract for residential work."[11] Ask for a quote that names:

  • The disposal's brand, model and horsepower, or that you are supplying it.
  • Whether the mount and sink flange are being replaced or reused.
  • The drain parts, the dishwasher connection and any air gap.
  • Whether a new outlet, switch or cord kit is needed, and who does that work.
  • Removal of the old unit, the permit if one is needed, and any warranty on the labor.

Get at least three written quotes on the same job,[11] and check the licence of whoever you hire on DPOR's licence lookup.[12] DPOR warns: "A license number in an advertisement or on a business card does not necessarily mean the contractor's license is valid."[11]

If you would rather do a plug-in swap yourself, the guide to replacing a garbage disposal walks through it, and should I hire a plumber to install a garbage disposal covers where the line is. For other fixtures, see what plumbers charge to install fixtures in Virginia.

Stop and call a pro if

  • The quote includes new wiring, an outlet or a switch but does not say who will do it or under which licence.
  • There is no disposal there now and the drain has to be rebuilt to take one.
  • The old drain is corroded or leaking where the disposal will connect. That repair should be priced as well.
  • The disposal is jammed, humming or leaking rather than dead. A repair may cost less than a new unit; see garbage disposal repair.

Getting quotes in Virginia

Loclis lists DPOR-licensed plumbing businesses with their licence number and class. Find plumbers in Blacksburg, browse garbage disposal services, or read more plumbing answers.

To compare prices for your kitchen, describe the disposal job once and licensed local plumbers quote it.

Common questions

Why do disposal quotes vary so much?
Because the jobs differ. A plug-in swap on the same mount and drain is short work. A first install needs drain parts, possibly a dishwasher connection and often a new outlet, and new wiring can bring in an electrician. Ask each business to list the unit, parts and labor separately.
Is a bigger motor worth paying for?
It depends on how you cook. Pricier models in InSinkErator's range add grind stages, sound insulation and longer in-home warranties, up to 10 years. A small household that scrapes most food into the trash may not need one.
Will my warranty cover the replacement?
Check before you pay anyone. InSinkErator's in-home limited warranty covers replacement parts and labor during the warranty period, through its authorized service network. Have the model and serial number and your purchase or install receipt ready.
Do I need a permit for a disposal in Virginia?
Virginia's building code requires a permit for work that alters the drainage piping or the electric wiring. A first install with a new outlet or new drain parts usually involves one or both. Ask whether the quote includes the permit and inspection, and check with your local building department.
Does a septic system change the cost?
It can. The Virginia Department of Health advises septic owners to eliminate or limit garbage disposal use, and some makers sell septic-specific models at a higher price. EPA says a septic tank that takes disposal waste needs pumping more often.

Sources

  1. [1] Garbage disposal comparison: Badger, Power and Advanced Series, InSinkErator. Checked October 26, 2026.
  2. [2] Garbage Disposal Replacement Guide, InSinkErator. Checked October 26, 2026.
  3. [3] Badger Series Installation, Care and Use Manual, InSinkErator. Checked October 26, 2026.
  4. [4] Installing a New Garbage Disposal, InSinkErator. Checked October 26, 2026.
  5. [5] Power Supply Cord Assembly instruction sheet, InSinkErator. Checked October 26, 2026.
  6. [6] Onsite Sewage System Owner Responsibilities, Virginia Department of Health. Checked October 26, 2026.
  7. [7] How to Care for Your Septic System, U.S. Environmental Protection Agency. Checked October 26, 2026.
  8. [8] § 54.1-1129. Necessity for licensure (tradesmen), Code of Virginia, Virginia General Assembly. Checked October 26, 2026.
  9. [9] § 54.1-1128. Definitions (tradesmen), Code of Virginia, Virginia General Assembly. Checked October 26, 2026.
  10. [10] 13VAC5-63-80. Section 108 Application for permit (Virginia Uniform Statewide Building Code), Virginia Administrative Code, Virginia General Assembly. Checked October 26, 2026.
  11. [11] What You Should Know Before You Hire a Contractor, Virginia Board for Contractors, DPOR. Checked October 26, 2026.
  12. [12] License Lookup, Virginia Department of Professional and Occupational Regulation. Checked October 26, 2026.

Want a pro to handle it?

Describe the job once. Licensed local businesses send quotes, and you pay only when you book one.