The short answer
If you are replacing a disposal with a similar one, the job takes a few hours. You disconnect power, remove the old unit from the mounting ring, attach the new unit, reconnect the drain and the dishwasher line, and restore power. The hard parts are usually a stuck mounting ring and a cramped cabinet, not the plumbing itself.
If the sink has no disposal now, you need an electrical outlet and a switch, and that changes the job. Wiring a new circuit is electrical work, and Ohio expects it to be done properly. Plan to hire an electrician or a plumber who coordinates one.
What you need before you start
- A replacement disposal that matches your sink flange, usually a standard three bolt mount
- A power cord kit if the new unit does not include one
- Plumber's putty and a screwdriver set
- A wrench for the drain connections and a small hammer to tap the mounting ring
- A bucket, towels and a flashlight for the cabinet
- A non-contact voltage tester, so you can confirm the power is truly off
Step by step
Cut the power
Switch off the breaker, unplug the unit if it has a cord, and test the outlet with a voltage tester.
Disconnect the drain
Place a bucket underneath, loosen the discharge pipe and the dishwasher hose, and free the trap.
Remove the old unit
Hold the unit, twist the mounting ring until the unit drops, and lower it out of the cabinet.
Mount the new unit
Seat the flange with plumber's putty, attach the mounting ring, and lift the new unit into place.
Reconnect and test
Reattach the discharge, hook up the dishwasher hose, restore power and run water to check for leaks.
Before you reattach the dishwasher hose, knock out the plug inside the disposal's dishwasher inlet if the unit has one. Skipping this is the most common mistake, and the dishwasher will not drain until it is done.
Safety note
Never put your hand into a disposal, even when it is off. Use a wrench in the bottom socket to free a jam, and keep the power off while you work.
Three common problems when installing
| Problem | Cause | Fix |
|---|---|---|
| Leak at the flange | Not enough plumber's putty or an uneven seat | Reseat the flange with fresh putty |
| Leak at the discharge | Misaligned pipe or a loose gasket | Realign and tighten the connection |
| Dishwasher will not drain | Knockout plug still in place | Remove the plug from inside the unit |
| Unit hums and trips | Jam or electrical fault | Free the jam, check the wiring |
Want it done for you?
Call the 24/7 line about disposal not working and we will book the next appointment that fits.
When to call a licensed plumber
Call a plumber if the drain lines under the sink are corroded, if the sink drain does not line up with the new unit, or if the old unit is leaking from the housing and has already damaged the cabinet. Also call if the sink is a double bowl with a shared trap that backs up, because the trouble may be in the line past the disposal, which our drain cleaning visit handles.
If you want a new disposal and do not have power at the sink, start with the wiring. A plumber who coordinates an electrician can finish the job in one visit. You hear a clear price before work starts, and we explain which parts are plumbing and which are electrical.
What an install costs and why it varies
We do not post a flat price because the job varies. The unit, the horsepower, the condition of the drain, whether there is an outlet and switch and the time of day all change the number. A bigger motor handles more, and a bigger motor costs more. Corroded fittings that need replacing add parts and labor.
Choosing the right disposal
Disposals are sold by motor size, and bigger is not always better. A small motor handles light use in a household that cooks little. A larger motor grinds tougher scraps and runs more quietly, and it costs more to buy and install. Pick one that matches how you cook and how many people use the sink.
| Feature | What it does | Worth it when |
|---|---|---|
| Larger motor | Grinds tougher scraps without jamming | A big family or heavy cooking |
| Continuous feed | Runs while you add scraps with a wall switch | Most kitchens |
| Batch feed | Runs only with the stopper in place | Households with small children |
| Sound insulation | Reduces noise in an open kitchen | A kitchen next to living space |
Installing a disposal in a Massillon home
Massillon's sewer system includes pipe more than a century old, and the city maintains the public lines. A disposal sends more solids and grease into the house drain than a sink without one, which is hard on old cast iron and clay. If your home is in the older parts of the city near downtown, scrub the line with hot water after heavy use and keep grease out of the sink.
In Perry Township, about 1,475 septic systems are still in use according to the township's plan. A disposal adds solids to a septic tank, so a home on septic needs more frequent pumping, and some septic manufacturers advise against them. Check whether your house is on city sewer, the Stark County Metropolitan Sewer District or septic before you install one. Permit rules vary, so ask the Massillon Building Department if your project needs one.
Follow the maker's instructions for your model, and note that the Ohio Plumbing Code, OAC Chapter 4101:3, sets the standards for the trap and drain connection.
Massillon disposal questions
It depends on the tank and the manufacturer's advice. Disposals add solids, and a septic tank fills faster. Ask your septic service before you install one, or see our Perry Township page for how we handle septic homes.
Permit rules vary, so ask the Massillon Building Department. A like-for-like swap is often simple, and new wiring is a different matter.
The flange needs a fresh bed of plumber's putty and even tightening. Take it apart and reseat it.
Many last eight to fifteen years, depending on use. Grease and hard items shorten the life.
Yes. We serve Jackson Township and nearby towns. Call and we will book the next appointment.