You might be facing the consequences of a poorly installed garbage disposal. Even a small mistake during installation can lead to water leaks, electrical hazards, or damage to your plumbing system.
At Lords of Plumbing, we’ve helped many homeowners throughout Los Angeles fix issues caused by improper garbage disposal installation. As one of the most trusted providers of plumbing services in LA, we know what it takes to install these systems the right way—safely and efficiently.
In this post, we’ll cover the most common installation errors, how to avoid them, why proper installation matters, and when it’s best to bring in a professional.
The Most Common Garbage Disposal Installation Mistakes
Trying to install a garbage disposal without a full understanding of the process can quickly go wrong. Here are some of the most frequent mistakes we see:
1. Not Disconnecting the Power First
It might sound obvious, but many people forget to disconnect the electrical supply before starting. Working on a live appliance can result in serious injury.
2. Using the Wrong Mounting Ring
Disposals come with different mounting systems, and using the wrong one can lead to an unstable connection and leaks.
3. Poor Seal at the Sink Flange
The flange must be sealed tightly to prevent water from leaking into the cabinet. Rushing this step or skipping plumber’s putty can cause long-term issues.
4. Incorrect Pipe Connections
Installing pipes at the wrong angle or height can lead to poor drainage, clogs, or backups.
5. Forgetting the Knockout Plug
If your dishwasher drains into the disposal, the knockout plug inside the disposal’s inlet must be removed. If not, water from the dishwasher will have nowhere to go.
6. Not Supporting the Unit Properly
A garbage disposal is heavy. Failing to support it during installation can damage the mounting system or strain the sink.
Tips for Proper Installation
To avoid damage and unnecessary costs, keep these guidelines in mind:
- Always shut off the power supplyat the circuit breaker before beginning work.
- Check compatibilityof your sink and plumbing before purchasing a new disposal unit.
- Use plumber’s putty or sealantunder the sink flange to ensure a watertight fit.
- Secure all pipe connectionsusing the appropriate fittings and clamps.
- Test for leaksafter installation by running water and checking all joints.
- Consult your disposal’s manualfor specific mounting instructions and wiring guidance.
When to Call in Professional Help
Even if you’re handy around the house, garbage disposal installation isn’t always a straightforward job. You’re dealing with plumbing, electricity, and sometimes dishwashers—all connected in tight spaces.
If your existing plumbing doesn’t match up with the new disposal, or if you notice leaks after installation, it’s time to stop and reach out to a professional. Licensed technicians can make sure everything is secure, sealed, and running efficiently.
Are You Installing It Right—Or Just Hoping for the Best?
Improper garbage disposal installation can leave you with a mess under your sink and costly repairs down the line. It’s not just about convenience—it’s about protecting your plumbing system and your home.
At Lords of Plumbing, we offer dependable garbage disposal installation in Los Angeles, along with a full range of plumbing services throughout the city. We’re one of the leading local providers because we don’t cut corners. Our team has years of hands-on experience and understands how to get it right the first time. Whether you’re replacing an old unit or setting one up for the first time, we’ll make sure it’s done safely, cleanly, and up to code.
Call Lords of Plumbing at (310) 845-6027 today to schedule professional garbage disposal installation and avoid the headaches of DIY mistakes. Let us help you keep your kitchen running smoothly with expert plumbing services in Los Angeles you can count on.