A garbage disposal is a must-have kitchen appliance for many homeowners. It offers a convenient and hygienic way to dispose of food waste, helping to keep your kitchen clean and odor-free. Whether you’re upgrading an old unit or installing a new one, you might be wondering: How long does it take to install a garbage disposal?
While the installation of a garbage disposal can be a DIY project for some, hiring a professional plumber is often the best option to ensure the job is done quickly and correctly. In this blog, we’ll break down how long garbage disposal installation typically takes, the factors that influence the timeline, and why you should consider professional installation for your home.
Average Time for Garbage Disposal Installation
For most homeowners, installing a garbage disposal will take about 1 to 2 hours if all plumbing and electrical connections are in place and no major issues arise. However, the time it takes to install a garbage disposal depends on several factors, such as whether you’re replacing an old unit, upgrading to a different model, or dealing with any plumbing or electrical issues.
Factors That Affect Installation Time
- Replacing an Existing Disposal
- If you’re simply replacing an old garbage disposal with a similar model and the plumbing and electrical connections are already set up, the installation will generally take 1 to 2 hours.
- The process is relatively quick because the plumber can often reuse the existing plumbing connections and electrical wiring.
- Installing a New Garbage Disposal
- If you’re installing a new garbage disposal where none previously existed, the process will take longer, typically between 2 to 4 hours. This is because the plumber will need to install the sink flange, mount the disposal unit, connect the plumbing, and wire the electrical components.
- For homes without a pre-existing garbage disposal, additional time may be needed to make adjustments to the plumbing and electrical system.
- Upgrading the Plumbing or Electrical System
- If your home requires plumbing or electrical upgrades to accommodate the new garbage disposal, this could add significant time to the project. A plumber may need to adjust the drain lines, install new fittings, or even reroute pipes to ensure everything is aligned.
- Similarly, if the electrical wiring needs to be modified or a new circuit needs to be installed, this could add an extra 1 to 3 hours to the total time.
- Difficulty of the Installation
- If you have a complex or difficult-to-reach sink configuration, or if there are unforeseen complications like old, corroded plumbing, the installation time could extend beyond the standard estimate. For example, if there’s significant debris or mineral buildup that needs to be removed before installation, this can add extra time.
- Disposal of the Old Unit
- If you’re replacing an existing garbage disposal, the old unit will need to be properly removed and disposed of. The time spent on disposal will generally add 15 to 30 minutes to the installation process.
Step-by-Step Breakdown of the Installation Process
To understand the process better, here’s a step-by-step overview of what happens during a typical garbage disposal installation, and how long each step usually takes:
Step 1: Disconnecting the Old Unit (if replacing)
- Time Required: 15-30 minutes
- Details: If you’re replacing an old disposal unit, the plumber will first disconnect the drain line, power source, and mounting bracket. This can take a bit of time, especially if the old unit is stuck or difficult to remove.
Step 2: Preparing the New Unit and Sink Flange
- Time Required: 20-30 minutes
- Details: The plumber will install the new sink flange, which involves applying plumber’s putty around the base of the flange and placing it in the drain hole. The sink flange needs to be sealed properly to prevent leaks, which is why this step is done carefully.
Step 3: Attaching the Mounting Bracket and Disposal Unit
- Time Required: 20-30 minutes
- Details: The plumber will secure the mounting bracket under the sink, aligning it with the disposal unit. Once the mounting is in place, the unit will be lifted into position and attached securely. This step is relatively quick but requires precision to ensure that the unit is properly aligned.
Step 4: Connecting the Plumbing
- Time Required: 15-30 minutes
- Details: The plumber will connect the drain line from the disposal to the waste pipe. This step is important to ensure there are no leaks once the disposal is turned on. In some cases, additional parts like a new tailpiece or P-trap may need to be installed to make the connection.
Step 5: Wiring the Disposal (if needed)
- Time Required: 15-30 minutes
- Details: If the garbage disposal needs to be hardwired, the electrician will connect the disposal’s electrical wiring to your home’s power supply. This can involve attaching the disposal’s power cable to the wiring under the sink and ensuring the disposal is grounded properly for safety.
Step 6: Testing the Unit
- Time Required: 10-15 minutes
- Details: Once everything is connected, the plumber will test the disposal to ensure that everything is working correctly. This includes running water through the system, turning the disposal on, and checking for leaks or electrical issues. If all goes well, the installation is complete.
DIY vs. Professional Installation
While installing a garbage disposal may seem like a simple task, it’s important to consider whether you should attempt a DIY installation or hire a professional plumber. Here are some factors to help you decide:
DIY Installation
- Time and Skill Level: If you have basic plumbing and electrical skills, you can attempt a DIY installation. However, the process may take longer (4 to 6 hours) if you run into any complications. Additionally, incorrect installation can lead to plumbing leaks or electrical issues that may cost more to fix later.
- Tools Required: You will need the right tools (wrenches, screwdrivers, pliers) and may need to purchase additional plumbing parts or electrical components.
- Safety Considerations: Working with electricity and plumbing can be dangerous if you’re not experienced. It’s essential to ensure everything is wired and sealed correctly to avoid electrical shocks or leaks.
Professional Installation
- Time-Saving: Hiring a professional plumber will save you time, as they can complete the installation in 1 to 2 hours. Professionals also have the tools and expertise to avoid any complications, ensuring a smooth and efficient process.
- Expertise: A licensed plumber is familiar with local building codes and will ensure the job is done correctly, including handling electrical connections and plumbing issues that may arise.
- Safety: Professionals know how to handle potentially hazardous tasks, such as electrical wiring and plumbing connections, minimizing risks like leaks or electrical issues.
When to Call a Professional
It’s usually best to call a professional plumber when:
- You’re installing a garbage disposal for the first time and need to handle plumbing and electrical connections.
- You’re replacing an old disposal with a new model that requires electrical or plumbing adjustments.
- You encounter complications, such as broken plumbing, hard-to-reach areas, or difficulty with the power supply.
- You’re unsure about how to handle electrical wiring or plumbing work safely.
Conclusion
On average, garbage disposal installation takes about 1 to 2 hours for an experienced plumber to complete, assuming there are no major complications. For first-time installations or more complicated setups, the process may take a little longer, generally between 2 and 4 hours.
While installing a garbage disposal yourself is possible if you have the necessary skills, hiring a professional ensures the job is done safely and efficiently. At Pristine Plumbing, we specialize in garbage disposal installations and repairs. Our experienced team is ready to assist with all your plumbing needs, ensuring your kitchen stays clean, functional, and efficient.