Quick Answer: How To Install An Undermount Kitchen Sink Under Granite?

How are undermount sinks attached to granite?

Undermount sinks are typically attached with a two-part epoxy adhesive and sealed with silicone caulking around the perimeter. Make sure to get a professional or someone who knows what they’re doing. Most professionals can install an undermount kitchen sink in 30 minutes or less.

Can you install undermount sink after granite is installed?

The best thing about undermount sinks is that they can be used with any type of stone countertop. Whether you have a marble countertop, a quartz countertop or a granite countertop, undermount sinks can be installed without any problems.

How much granite should overhang on an undermount sink?

The amount of overhang on an undermount sink varies, but typical measurements are 1/4 or 1/8 inch over the rim of the sink. Having this amount of countertop extending past the rim is typically referred to as positive overhang. Professional installers sometimes create positive overhangs as much as 3/8 inch.

Do undermount sinks need clips?

A sink can be installed without clips, but it requires the proper installation tools and techniques. Undermount sinks are one of the hottest trends in remodeling right now. However, they can be more challenging to install than traditional countertop sinks because they do not use clips to attach to the countertop.

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Should there be a gap between undermount sink and countertop?

There is always a small gap there, and it’s important to caulk that gap between the undermount sink and the countertop because any water that seeps into it promotes mold and may even interfere with the adhesive securing the sink. You have to be more careful when caulking a flush-mount or positive-reveal sink.

Can you put a new sink in existing granite?

Yes, one can be installed in an existing countertop, even granite. Yes, it can be installed in an existing cabinet with a little reinforcement. Yes, there are mounting options for a farmhouse sink, just as there are for regular sinks.

What adhesive is used for undermount sink?

The job requires a handful of under-mount sink clips, a tube of silicone adhesive and a few everyday hand tools. An assistant or family member makes it easier when installing an under-mount sink. Position the under-mount sink on the floor of the cabinet below the cutout for the sink.

Do undermount sinks leak?

Whether you installed the undermount sink yourself or had it installed by a pro, it’s not uncommon for leaks to develop in a matter of days or weeks after the installation.

What’s the difference between undermount and drop in sinks?

Undermount sinks are bolted to the bottom of a countertop. Drop-in sinks are installed directly through the top of the countertop. Drop-in sinks have a lip framing the sink which, over time, collects dust and residue. This raised lip prevents you from sweeping the countertop debris directly into the sink.

What is a negative reveal on an undermount sink?

In a negative reveal, the countertop extends slightly over the top edge of the sink on all sides. However, an overreaching edge is at risk for chipping. Without thorough cleaning, there is also a chance mold may start to appear under the edge because of the sink’s positioning. Negative Sink Reveal.

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Do you have to use an undermount sink with granite?

All of the sinks that we carry in-house are undermount, and that is generally what we recommend for granite or marble countertops. A drop-in sink, conversely, is set down into the countertop with its rim over the edge of the granite.

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