Garbage Disposal Swap
Handis kitchen garbage disposal swap replaces the existing under-sink disposer with a new continuous-feed or batch-feed unit — Insinkerator Badger 5 or 5XP, Insinkerator Evolution Compact or Excel, Waste King L-2600, Moen GX — at 1/2 HP, 3/4 HP, or 1 HP. From $250 for a like-for-like swap on existing plug-in electrical to $600 for an upgrade to a 1 HP Evolution Excel with new mounting and dishwasher tee work. The old Badger 1 from 2008 that has been making a grinding noise since spring. The disposal that leaks a slow drip from the bottom housing onto the cabinet floor. The disposal upgrade from 1/2 HP to 3/4 HP for a household that runs the kitchen sink hard. The first-time disposal install where the sink basket strainer side has been plain-drain since the house was built. Most swaps finish in 45 to 75 minutes on existing electrical. Hardwired electrical replacement routes to a licensed Washington L&I electrician — named on the quote on the booking call. Major drain plumbing (in-wall stub-out, drain main re-route) routes to the licensed plumber on the same honest-line discipline.
Service
What Does a Kitchen Garbage Disposal Swap Include?
A garbage disposal swap is the under-sink scope on a kitchen update or a failed-disposal callout — covering disconnect of the existing disposal from the sink basket strainer and the under-sink electrical, removal of the old unit, install of the new disposer with a new mounting assembly where needed, connection of the dishwasher drain tee to the disposal side tap, connection to the P-trap, system test, and a leak check at every connection point. Handis covers same-day installs from $250 on a like-for-like swap to $600 on a 1 HP upgrade with new mounting and dishwasher tee work. Most installs finish in 45 to 75 minutes on existing electrical. Hardwired electrical replacement routes to a licensed Washington L&I electrician as a separate line item.
1/2 HP Like-for-Like Swap (Plug-In)
The most-common kitchen disposal scope — Insinkerator Badger 5 or Waste King L-1001 replacement on existing plug-in cord-and-plug electrical (an existing kitchen outlet under the sink with a switch on the wall). Mounting ring reused if intact, new disposer hung from the existing ring, dishwasher tee re-connected. From $250 labor.
3/4 HP or 1 HP Upgrade
Upgrade from 1/2 HP to 3/4 HP (Insinkerator Badger 5XP or Evolution Compact, Waste King L-2600) or to 1 HP (Insinkerator Evolution Excel). Heavier disposer, often a new mounting assembly because the old assembly is rated for the older unit weight. New disposer set into the new ring, electrical reused if intact. From $400 labor.
Continuous-Feed vs Batch-Feed
Most kitchens run continuous-feed (the switch on the wall controls power, food drops in while the unit runs). Batch-feed uses a stopper that activates the unit only when seated — used in homes with small children or where the household prefers the safer activation. We confirm the configuration on the booking call.
Plug-In vs Hardwired Electrical
Plug-in (cord-and-plug at an under-sink outlet, switch on the wall) is the modern standard since the 1990s — handyman scope on a like-for-like swap. Hardwired (no plug, direct wiring to a junction box) is common on older installs — Handis can reuse intact hardwired electrical, but any replacement of the hardwired connection, the junction box, the switch, or the circuit routes to a licensed Washington L&I electrician.
Dishwasher Tee Connection and First-Time Tee Install
The disposal side tap connects to the dishwasher drain hose via the dishwasher tee. On a like-for-like swap, the existing tee gets re-connected with a fresh hose clamp. On a first-time install (no prior disposer), the tee knockout on the new disposer gets removed with a screwdriver and a hammer before the unit goes on the mounting ring (a step that has to happen before the unit is hung — easy to forget on the install, easy to flood the dishwasher if missed).
Mounting Ring Replacement When Corroded
The mounting ring (the metal assembly that holds the disposer to the sink basket strainer) gets reused when intact and replaced when corroded or incompatible with the new unit. New mounting ring kits come with the disposer and include the plumber's putty or rubber seal for the basket strainer to sink basin. New mounting hardware torqued to manufacturer spec.
How a Kitchen Garbage Disposal Swap Works
Six sequential steps from booking-call photo confirmation through disconnect, install, and final leak check — the actual sequence on every Handis garbage disposal swap.
Confirm Disposer Model and Electrical from a Booking-Call Photo
Phone photo of the existing disposal model number plate, plus a photo of the under-sink area showing the mounting ring, the dishwasher tee, the P-trap, and the electrical connection (plug-in cord-and-plug to an outlet, or hardwired into a junction box), sent on the booking call. Confirms unit horsepower, dishwasher connection status, and electrical configuration. New disposer ordered to match the scope before arrival.
Cut Power at the Wall Switch or the Breaker
Wall switch off, breaker off as backup. Verify no power with a non-contact voltage tester at the under-sink outlet or the junction box. Place a small bucket under the P-trap connection to catch residual water from the break. Disconnect the dishwasher drain hose from the disposal side tap with a screwdriver on the hose clamp.
Disconnect the Old Disposer from the Mounting Ring and Electrical
Twist the disposer counterclockwise to release from the mounting ring (the standard quick-release on Insinkerator and most modern brands). Lower the disposer carefully (a 3/4 HP or 1 HP unit is heavy — a second hand on the unit during the release). Disconnect the electrical — unplug the cord from the under-sink outlet, or open the junction box and disconnect the wires for hardwired.
Inspect and Replace the Mounting Ring if Needed
Inspect the mounting ring for corrosion, cracks, or compatibility with the new unit's mounting collar. Reuse if intact. Replace if compromised — remove the snap ring, disassemble the mounting ring from the basket strainer, install the new ring kit with fresh plumber's putty or the new rubber seal at the basket strainer to sink basin.
Install the New Disposer, Dishwasher Tee, P-Trap Connection
For first-time dishwasher tee installs, knock out the tee plug on the new disposer with a screwdriver and a hammer BEFORE the unit goes on (a step easy to forget, easy to flood the dishwasher if missed). Hang the new disposer on the mounting ring with the quick-release turn clockwise. Reconnect dishwasher drain hose to the side tap with a fresh hose clamp. Reconnect the discharge tube to the P-trap with a fresh slip-joint washer.
Restore Power, Run the Unit, Leak-Check Every Connection
Plug the cord back into the under-sink outlet (or close the junction box and restore the hardwired connection). Power on at the wall switch. Run cold water, run the disposer for 30 seconds with no load. Check for leaks at the basket strainer to sink basin, the mounting ring assembly, the dishwasher tee hose clamp, the discharge tube to P-trap slip joint. Anything that drips gets re-torqued or re-sealed before sign-off.
Kitchen Garbage Disposal Swap Pricing
Final pricing is labor plus the disposer cost (owner-supplied is fine; we can also source). Anything hardwired (new junction box, new wall switch, new dedicated circuit) routes to a licensed Washington L&I electrician as a transparent line-item adder. Major drain plumbing (in-wall stub-out, drain re-route) routes to a licensed Washington L&I plumber on the same disclosure. Request a free estimate for an accurate quote.
Send a phone photo of the existing disposal model plate and the under-sink electrical — we will confirm the swap scope and quote before booking.
Why Handis for Kitchen Garbage Disposal Swaps
The most-common failure on a DIY garbage disposal install is the dishwasher tee plug that did not get knocked out before the unit went on. The disposer mounts fine, the dishwasher runs, the dishwasher drain water has nowhere to go, and the kitchen floor floods on the first cycle. The second-most-common is the install on a corroded mounting ring that no one inspected — the new disposer hangs from a ring that is one cleaning cycle from failure, and the disposer drops into the cabinet six months later. The third is the hardwired install where the DIY-er did not realize the electrical was hardwired (not plug-in) until the new disposer was already half-installed, leaving an exposed junction box with no licensed handoff. Handis runs the tee knockout, the mounting ring inspection, and the electrical confirmation as non-negotiable steps on every install — and we will tell you on the booking call what the electrical configuration is so the right scope is quoted upfront.
Confirm disposal model and electrical from a phone photo
Most failed disposal swaps fail because the new unit does not match the existing electrical (a plug-in unit ordered for a hardwired install, or vice versa) or the existing mounting ring is incompatible with the new disposer's mounting collar. We ask for a clear phone photo of the existing disposal model plate on the booking call, plus a photo of the under-sink electrical and the mounting ring. The new disposer gets ordered to fit before the truck rolls.
Dishwasher tee plug knockout on first-time installs
On a first-time disposal install (where the kitchen had a plain-drain basket strainer and no prior disposer), the new disposer arrives with a plug in the dishwasher tee port that has to be knocked out with a screwdriver and a hammer BEFORE the unit goes on the mounting ring. A $50 add-on. Easy to forget on the install, easy to flood the dishwasher on the first cycle if missed. We do the knockout as a checklist step on every first-time install.
Mounting ring inspection on every swap
The mounting ring gets inspected for corrosion, cracks, and compatibility with the new disposer's mounting collar. Reuse if intact, replace if compromised. A new mounting ring kit ($75 add-on) is the cheap insurance on a 10-year-old disposer swap where the existing ring may have been through one cleaning cycle too many.
Honest electrical handoff on hardwired installs
Plug-in cord-and-plug electrical with an existing under-sink outlet and wall switch is handyman scope on every disposal swap. Hardwired electrical (direct wiring to a junction box, no plug-and-cord) is reused if intact, but any replacement of the hardwired connection, the junction box, the wall switch, or the circuit routes to a licensed Washington L&I electrician. We will tell you on the booking call which configuration your kitchen has and what the licensed-sub portion would look like.
Leak check under run for every connection
Power back on, water running, disposer running for 30 seconds with no load. Every connection leak-checked — basket strainer to sink basin, mounting ring assembly, dishwasher tee hose clamp, discharge tube to P-trap slip joint. Anything that drips gets re-torqued or re-sealed before sign-off. We do not leave a disposal at a weeping connection and ask the homeowner to call back.
Insured, background-checked, 30-day workmanship guarantee
Every Handis tech carries liability insurance and has cleared a background screening. 30-day workmanship guarantee on every disposal swap — if a connection we made drips, the dishwasher tee hose clamp loosens, the discharge tube slip joint weeps, or the disposer drops from the mounting ring within 30 days because of our install, we come back and fix it at no extra charge. The guarantee covers our install; it does not cover the disposer motor itself failing months later (a known wear part on a separate lifecycle), or jams caused by non-food items dropped into the disposer. The licensed-electrician sub portion (when triggered) carries its own L&I-trade workmanship guarantee, also named on the quote.
Estimate
Send us a clear phone photo of the existing disposal model plate, a photo of the under-sink area showing the mounting ring and the dishwasher tee, and a photo of the electrical connection (cord-and-plug to an outlet, or hardwired into a junction box). Tell us the new disposer (brand, model, horsepower, continuous-feed or batch-feed, or owner-supplied) and any known issues — grinding noise, leak from the bottom housing, hard reset that fixes the issue only temporarily. We send a written quote with any licensed-electrician sub portion called out separately when applicable.
Customer Reviews
Garbage disposal swap reviews from real Handis customers.
Insinkerator Badger 5XP swapped for the old Badger 1 that had been making a grinding noise for months. Tech disconnected the old unit, lifted it off the mounting ring, set the new one with a new dishwasher tee on a fresh hose clamp. Maybe 45 minutes. The kitchen quiet again for the first time in half a year.
Upgraded from the 1/2 HP Badger to a 1 HP Evolution Excel in our kitchen. Heavier unit, the tech replaced the mounting ring with a new kit because the old ring was rated for the lighter disposer. About 75 minutes. Runs quieter under load than the old one did under no load.
First-time disposal install on our kitchen update — the basket strainer side had been plain-drain since the house was built in 1985. Tech knocked out the dishwasher tee plug before the unit went on, confirmed with us before he committed. Dishwasher and disposal both run clean on the first cycle. No flood.
Old disposal was hardwired into a junction box and the tech caught that on his pre-install photo check. Quoted both the disposal swap and the licensed Washington L&I electrician portion to swap to a cord-and-plug install with a new under-sink outlet. Both line items on the quote, both done in the same week.
Batch-feed Insinkerator install in our kitchen — we have a four-year-old running around and wanted the safer stopper-activated unit. Tech confirmed the configuration on the booking call, installed in about an hour. The stopper activation feels solid, no half-engagement issues like I had read about online.
Frequently Asked Questions
Common questions about Handis kitchen garbage disposal swaps.