Installing a garbage disposal can be a handy upgrade to your kitchen, making meal clean-up a breeze. If you’re a DIY enthusiast, you might wonder if this is a project you can tackle on your own. The answer depends on your comfort level with plumbing and electrical work. While many homeowners successfully install garbage disposals themselves, it’s important to consider the complexity of the job and your own skill set. On the other hand, hiring a professional ensures the job is done quickly and correctly, minimizing the risk of future issues. Let’s explore the pros and cons as The Pro Plumbing help you to decide the best route for you.
Installing a Garbage Disposal Yourself
Installing a garbage disposal can be a rewarding DIY project if you have the right tools and a bit of plumbing and electrical know-how. To ensure a successful installation, careful preparation and execution are key. Here’s a comprehensive guide to help you through the process.
1. Preparation and Safety Measures
Before starting, make sure you prioritize safety and preparation. Begin by turning off the power supply to the sink area. If an existing disposal unit is present, unplug it or switch off the circuit breaker. Next, turn off the water supply to the sink to avoid any accidental spills during the installation. Gather the necessary tools and materials, including a screwdriver, adjustable wrench, plumber’s putty, and a hacksaw. Ensure you have the new garbage disposal unit and all required mounting hardware. Review the installation manual provided by the manufacturer to understand specific requirements and steps. Clear the work area under the sink to give yourself ample space. Place a towel or bucket to catch any residual water or debris.
2. Removing the Existing Unit


If you’re replacing an old garbage disposal, you need to remove it before installing the new one. Start by disconnecting the power to the existing unit, ensuring it is unplugged or that the power is turned off at the circuit breaker. Remove the existing disposal by loosening and removing the mounting bolts or screws that hold it to the sink. Carefully lower the unit and disconnect the plumbing, which may involve using a wrench to loosen slip nuts that connect the drain pipes. Inspect the sink drain and pipes for any damage or debris and clean off any old plumber’s putty to ensure a proper seal for the new unit.
3. Installing the Mounting Assembly
With the old unit removed, proceed to install the mounting assembly for the new garbage disposal. Begin by placing the mounting ring over the sink’s drain opening and applying a ring of plumber’s putty around the flange to create a watertight seal. Press the flange into place and secure it with a locknut from beneath the sink. Next, attach the mounting assembly to the sink flange, aligning and securing it with the provided screws or bolts. Ensure everything is tightened properly to avoid leaks and check that the assembly is level to prevent alignment issues with the disposal unit.
4. Connecting the Garbage Disposal
After securing the mounting assembly, you can attach the garbage disposal unit. Lift the disposal into position and align it with the mounting assembly. Secure it by turning the mounting ring or collar to lock the disposal into place, ensuring it is firmly attached and won’t wobble. Align the discharge tube from the disposal with the drain pipes and use a slip nut and washer to connect it to the existing plumbing. Tighten the connections to prevent leaks. For models that require electrical wiring, follow the manufacturer’s instructions carefully. Connect the disposal’s power wires to the house wiring using wire nuts, ensuring all connections are secure and properly insulated.
5. Testing and Final Adjustments
With the disposal installed and connected, it’s time to test the system. Begin by turning on the water supply and checking for any leaks around the sink and disposal. Restore power to the disposal, either by plugging it in or turning on the circuit breaker. Run water through the sink and activate the garbage disposal to test its operation. Listen for any unusual noises or vibrations and ensure that the disposal grinds food waste effectively. If you notice any issues such as leaks or improper alignment, make the necessary adjustments by tightening connections or realigning parts. Once everything is functioning correctly, clean up the work area by removing any tools or debris and wiping down the space.
Hiring a Professional
Hiring a professional for your garbage disposal installation can be a smart choice if you want to ensure the job is done correctly and efficiently. Professionals bring expertise and experience to the table, which can save you time and help avoid potential issues. Here’s a detailed guide on what to expect when hiring a professional for this task.
1. Understanding the Need for a Professional
When deciding to hire a professional for garbage disposal installation, it’s important to understand the benefits and reasons behind this choice. Professionals have the training and experience to handle complex installations and troubleshoot problems that may arise. They can ensure that the disposal is installed correctly, which minimizes the risk of leaks, electrical issues, or improper function. Hiring a professional can also provide peace of mind, knowing that the job will be done up to code and that you won’t have to deal with unexpected complications.
2. Finding a Qualified Professional
Finding a reliable and qualified professional is crucial for a successful installation. Start by researching local plumbing and electrical contractors who specialize in garbage disposal installation. Look for companies with good reviews and ratings, as these can provide insights into their reliability and quality of work. Ask for recommendations from friends, family, or neighbors who have had similar work done. When contacting potential contractors, inquire about their experience with garbage disposal installations, their licensing and insurance status, and their availability. It’s also wise to request references from previous clients to gauge their satisfaction with the contractor’s work.


3. Getting an Accurate Estimate
Once you’ve identified a few potential professionals, request detailed estimates for the installation. A reputable contractor will typically provide a written estimate that outlines the cost of labor, materials, and any additional fees. Ensure that the estimate includes a breakdown of all potential costs so you can understand what you’re paying for. Be cautious of estimates that seem unusually low, as they may indicate subpar quality or hidden costs. Discuss the scope of the project with the contractor to ensure that all aspects of the installation, including any potential modifications to plumbing or electrical systems, are covered in the estimate.
4. The Installation Process
When you hire a professional, the installation process should be smooth and efficient. On the day of the installation, the professional will arrive with all the necessary tools and materials. They will begin by turning off the power and water supply to the sink area. The contractor will then remove any existing units and prepare the sink for the new disposal. This preparation includes cleaning the sink flange area and installing the mounting assembly.
The professional will then install the new garbage disposal, securing it to the sink and connecting it to the plumbing and electrical systems. They will ensure that all connections are properly sealed and that the disposal is securely mounted. Once the installation is complete, the contractor will turn the water and power back on and test the disposal to ensure it is working correctly. They will check for any leaks, unusual noises, or operational issues and make any necessary adjustments.
5. Post-Installation Services and Follow-Up
After the installation, a professional should provide you with information on how to properly use and maintain your new garbage disposal. They may offer tips on what can and cannot be disposed of to avoid damage and ensure the longevity of the unit. Additionally, some contractors provide warranties or guarantees on their work, which can offer extra peace of mind in case any issues arise after the installation.
It’s also important to follow up with the contractor if you experience any problems or have questions about the installation. A reputable professional will be responsive and willing to address any concerns you may have. They should also be available for any future maintenance or repairs if needed.
Conclusion
Deciding whether to install a garbage disposal yourself or hire a professional ultimately comes down to your confidence in handling plumbing and electrical tasks. If you have the necessary skills and enjoy DIY projects, you might find this installation rewarding. However, if you’re unsure or prefer the peace of mind that comes with professional expertise, hiring a professional is a smart choice. They can ensure the disposal is installed correctly and safely, saving you potential headaches down the line. Whichever path you choose, a new garbage disposal will enhance your kitchen’s functionality and make daily clean-up more efficient.