Con: You Need a Specific Type of Countertop
Because an undermount sink requires a lot of strength, it doesn't work well with all types of countertops. If your countertop is quite old, it is probably made of laminate or tile.
Since undermount sinks to not have anything above the counter to help carry their weight, they need more support. They also need more solid countertops that don't suffer easily from water damage. This often makes them a more expensive sink than other options and also makes installation more difficult.
The under-counter basin is easier to clean, easy to clean and hygienic, and the sanitary corners can also be seen clearly. But the disadvantage of the under-counter basin is that the construction is more difficult, and the bearing capacity is not as good as that of the over-counter basin. It is troublesome to install.
Undermount sinks are a popular choice for many homeowners because they offer a sleek, seamless look that is easy to keep clean. Because there is no lip around the edge of the sink, it is easier to wipe debris directly into the sink, rather than having to clean around the rim of the sink.
Some say drop-in is generally the best option because it's easier to access all parts of the sink for cleaning. However, both types of sinks tend to accumulate grime along the caulk line where the sink meets the counter. Where an undermount sink rim and counter meet, the caulked gap can be trickier to clean.
Moldy or Cracked Caulk: Just like topmount sinks, undermount sinks on granite and quartz need to be sealed to prevent moisture from creating mold and mildew problems in the cabinet.
Many undermount sink types are attached to the countertop with silicone sealant and metal clips. Use a utility knife to cut through the silicone, then unscrew the clips. Removing and installing an undermount sink is a two-person job.
To prevent leakage and any damage, you'll want to make sure your undermount sink is properly supported and sealed. Your counter and supports need to be able to keep the sink in its place and hold its weight safely.
Pros of an Undermount Sink
Undermount sinks can add countertop space and increase resale value after your remodel. There are additional benefits, too. Undermount sinks are: Easy to clean: Countertop cleanup is more streamlined with undermount sinks since you can wipe any spills or crumbs directly into the sink.
Insecure clamps: The clamps or the epoxy, or both, used to secure the sink to the bottom of the countertop were loose enough to cause the caulk to quickly pull away. Tighten the clamps thoroughly. Wrong sink sealant: The sink installer may have failed to use the correct kitchen sealant.
Weight: Stainless steel or copper sinks tend to be the lightest, while vitreous china, porcelain, ceramic and composites are moderately heavy. Choose a heavy stone, cast iron or enameled-steel undermount sink only if you're sure the countertop can support the weight.
An undermount sink is just like the name sounds – a sink that fits underneath your countertops. This sink has many benefits compared to other options and makes task work in your kitchen much easier. Undermount sinks work best when they are installed in conjunction with natural stone countertops, like granite.
Undermount sinks are simply more practical, functional and aesthetically pleasing than overmount sinks. With undermount sinks, it is really easy to wipe food crumbs from the countertops into the kitchen sink. There is no edge, no seam and no calking in the way.
Marble and granite
In this case, they are ideal for undermount sinks because they also happen to be durable. The fact that they are porous also helps in helping the adhesives bind more firmly with the stones. Despite what most people think, marble is not a “soft” stone.
Undermount. This type of sink rests below your countertop and doesn't a seam that builds up gunk. Undermount sinks are heavy, and often require a silicone seal between the sink and your countertop. Installations costs between $350 and $1,500.
Undermount sinks can be difficult to replace because many installation methods are more or less permanent. Sinkmount Kit hardware is designed to install and uninstall easily, in order allow undermount sinks to be replaced without risking damage to the existing countertop.
Brass supply pipes can last between 40 to 70+ years. Copper pipes can last in excess of 50 years, and galvanized steel pipes can last between 20 and 50 years. Cast iron drain lines have a lifespan of 75 to 100 years, and PVC drain lines will last indefinitely.
Undermount sinks also remain popular, with Beesley sharing that they're “a popular choice for customers as they are installed under the level of the worktop creating a seamless design. These types of sinks save space, and create a clean and sleek look which is great for minimalist-style kitchens.”
Proper Sink Installation
Then, form an initial seal by applying an adhesive (usually a two-part epoxy but sometimes silicone) to the sink before attaching it to the underside of the counter. Then seal the gap with silicone caulk. Look for mold-free or mildew-resistant caulk designed for kitchens and baths.
Stainless Steel Sinks for Granite Countertops
Stainless steel is incredibly popular for sinks because it: Looks great with granite. Resists chipping and cracking. Gives a modern look to the kitchen even in a farmhouse style.