My Undermount Sink Is Falling
An undermount sink is a type of kitchen sink that is installed beneath the countertop, leaving the countertop edge exposed. Professional installation of an undermount sink typically costs around $230, due to the increased difficulty in installation compared to other types of sinks. This type of sink is becoming increasingly popular due to its modern look and easy access to the countertop.

What is an undermount sink?
An undermount sink is a type of sink that is attached to the counter from underneath, creating a seamless look in the kitchen. According to Angi.com, repairs for an undermount sink should be done by a professional. The cost of installation and repair can vary depending on the type of sink and the complexity of the job.
An undermount sink is a type of kitchen sink that is installed beneath the countertop, leaving the countertop edge exposed. Professional installation of an undermount sink typically costs around $230, due to the increased difficulty in installation compared to other types of sinks. This type of sink is becoming increasingly popular due to its modern look and easy access to the countertop.
Do you have problems with undermount sinks?
Undermount sinks are a great option for creating a modern kitchen aesthetic, but they can come with potential problems. It is important to call in a professional to repair any cracks or mold that may develop over time, as attempting to fix it yourself could cause the sink to crash. According to FPB NYC (2020), the most common issues found with undermount sinks include leaks, damage to the countertop, and improper installation. Regular maintenance and cleaning is essential to ensure your undermount sink remains in top condition.
Can you seal an undermount sink?
A solution to the problem of an undermount sink separating from a granite countertop is to seal the flange of the sink to the underside of the countertop and use silicone caulk around the entire perimeter. According to Houzz (2020), this technique has been found to be the most effective in preventing separation. Caulking and sealing are important components of proper installation when it comes to undermount sinks.
How is an undermount sink installed?
Undermount kitchen sinks are installed beneath the countertop and are secured with a two-part epoxy adhesive and sealed with silicone caulking. According to The Kitchn (2022), installing an undermount sink can be done professionally or as a DIY project. It is important to note that undermount sinks are not suitable for all countertop materials, such as laminate, as they can cause cracking and water damage.
What are the benefits of an undermount sink?
An undermount sink has many advantages, including the lack of space needed on the countertop and easy cleaning. According to FPBNYC (2020), these sinks can present a number of problems such as water leakage, improper installation, and adhesive failure. Proper installation is essential to ensure that an undermount sink functions properly.
Can you re-caulk an undermount sink?
Reapplying caulking around an undermount sink is an important step in ensuring that your sink stays securely in place. According to The Spruce (2022), resealing an undermount sink is necessary to prevent water leakage between the sink and countertop. It is important to make sure that the sealant used is specifically designed for use in kitchens or bathrooms to ensure the best possible seal.
Do you prefer undermount sinks?
Undermount kitchen sinks offer a sleek and seamless design that is easy to clean around, making them a popular choice for many homeowners. According to Angi (2021), these sinks have distinctly clean lines that allow for quick counter wiping and a drop-in installation that adds to their appeal. Undermount kitchen sinks provide more space on the counter, since they are installed underneath instead of on top of the counter.
How to secure a sink?
This thread discusses how to secure an undermount stainless sink that has fallen down. A variety of clips and patterns are recommended depending on the shape and design of the sink, and it is important to make sure that the countertop is properly prepared for installation. According to the National Kitchen and Bath Association (NKBA), undermount sinks require a specific installation method and must be supported from underneath for maximum stability.
This guide explains how to secure an undermount kitchen sink by reattaching it. After turning off the water supply, disconnect plumbing connections, sink clips, and any remaining connections by hand. According to This Old House, when reattaching the sink, it is important to use the proper clips and screws for the sink material used. It is important to make sure that the sink is level and completely sealed in order to prevent any water leakage.
How to reseal a sink?
The best solution to re-seal an undermount sink to the countertop is to remove the sink, shut off the water, and remove all of the plumbing supply and drain pipes. According to The Spruce (2020), unclamp the sink from the countertop and, if the silicone caulk is old enough, it should be relatively easy to pull the sink away from the countertop. Once re-installed, reapply the silicone caulk to ensure a tight seal.
Can sinks be installed using epoxy or plywood?
Installing sinks with a permanent epoxy or a plywood substrate can help to reduce the number of sink failures caused by the limitations of silicone. According to Crowley's Granite (2020), this method of installation can help limit any potential damage to the sink itself. It is important to note that this method requires professional installation and can be more expensive than other options.
Can a quartz sink be re-installed?
The answer to the problem of a quartz undermount kitchen sink falling due to epoxy failure is to have the sink professionally dropped, cleaned, re-siliconed, and re-strapped. According to a study conducted by the National Kitchen & Bath Association (NKBA), strap sinks do not require any maintenance and should not have any black/brown crud.
How much does sink reinstallation cost?
The average cost of reinstalling an undermount kitchen sink that has fallen out is around $100-$500. According to Angi (2021), undermount sinks are attached to the counter from underneath, rather than being dropped into a hole and secured with a lip. Professional installation is recommended for this type of repair, as it can be a complicated process.
