Undermount Bathroom Sinks

Undermount bathroom sinks offer a sleek design and a number of different stylistic features. They are some of the most common sink designs for both residential and commercial projects, making them quite versatile. However, each sink design has their own set of pros and cons. This guide will highlight each of the pros and cons of an undermount bathroom sink along with a detailed explanation of each.

Pros of Undermount Sinks

Undermount Sinks Have a Sleek Design

One of the best features of an undermount sink is the sleek design. Because they are mounted from underneath the countertop, this sink fits seamlessly into the design of your vanity or counter. Unlike a drop-in sink, there is no visible lip that creates a distinct separation between the sink and the countertop. If you choose an undermount sink with the same color as your countertop, the sink will look like it is just a part of the countertop itself.

In addition to a beautiful fit, undermount sinks are also versatile in the materials and colors that can be used. As mentioned previously, if you match the color of the sink and countertop, it will make for a beautiful combination. You also have the option to create a contrasting color scheme. Consider a black undermount sink in tandem with a beautiful white countertop. Another option is a stylish metal undermount sink. This will give your vanity area a unique classic design component.

Undermount Sinks are Easy to Clean

When cleaning an undermount sink, it is similar to cleaning an integrated sink. Again, there is no lip on an undermount sink, making it very easy to smoothly clean these sinks. This is very helpful if you are cleaning your countertop and sink at the same time. You will be able to wipe the countertop and then immediately wipe down the basin of the sink.

A common concern is if there is any buildup in the crack between the sink and the countertop. If your undermount sink is installed and sealed properly, this will never be an issue. If you find that you have to clean out the space in between, the sink was likely not installed correctly. An undermount bathroom sink can be cleaned with common cleaning materials and a sponge or microfiber cloth. Wet the sink with cleaner, wipe it off with your sponge or cloth and then dry the sink down. A clean undermount sink will provide your bathroom design with a beautiful focal point.

Increased Counter Space

Undermount sinks are some of the most effective sinks to utilize if you want to increase the space on your countertop. Because they are mounted underneath the countertop, they take up essentially no space, aside from the area of the sink itself. The creation of space is important on a countertop because it will be necessary for certain accessories and other items. For example, counter space will allow for the inclusion of a magnifying mirror. This will boost the utility of your bathroom as well as the overall design.

Depending on if you have a vanity or simply a countertop, an undermount sink is great at opening up the area. The space that is created can be used for extra storage, but it is also useful for creating a minimalist design. Try to keep your countertop clear in order to make a beautiful open and inviting vanity area.

Distinct Features

There are several unique and beautiful features of an undermount bathroom sink. For example, undermount sinks are the only sink type that is mounted from underneath the countertop. This will open up the space on your countertop and give a unique design element to your bathroom. Undermount sinks also create a continuous flow from the countertop to the bottom of the sink. This makes for a smooth integration of the sink that looks incredibly sleek.

Undermount sinks are also great for creating a unique and personal design. Because this type of sink is mounted from underneath the countertop, you have the freedom to choose a beautiful countertop and sink combination. Undermount sinks need a sturdy countertop for installation, so consider something like a beautiful granite countertop. There are endless combinations, so keep your options open.

Great For Resale Value

If you are renovating or remodeling your bathroom design, resale value should always be on your mind. Undermount sinks are very useful in this regard. This is especially true if you have a beautiful countertop to match. When planning your vanity or sink area, this is something that you need to consider. Not only will it be a beautiful design for you to enjoy, but the resale value of your bathroom will also increase.

Make sure that you choose a beautifully designed and high quality undermount bathroom sink. Choose a beautiful material such as ceramic or cast iron that will both last long and be a durable material for years to come. A color that matches with the rest of the bathroom can also help you out greatly. If you are not sure which color is for you, white is always a versatile option that fits in any bathroom design. Color and material matter, so choose the right fit for your specific design, while thinking toward the future.

Cons of Undermount Bathroom Sinks

It Can be Difficult to Install

Although a very beautiful and useful sink, an undermount sink is one of the most difficult sinks to install. There are several steps that you need to take in order to install this type of sink properly. First of all, this sink is mounted from underneath the countertop, already making it somewhat awkward to install. Next, the sink needs to fit perfectly with the cutout of the countertop. The lip of the sink and the surface of the countertop should line up perfectly in order to create a seamless design and beautiful look.

In addition to precise positioning, your undermount sink needs to be perfectly sealed in order to prevent leaks. This is one of the most important steps of the installation process. If your sink is not properly sealed it could lead to damages that will cause replacements and unnecessary purchases or repairs. Because of this, you might want to contact a professional to install your undermount sink. On average, an undermount bathroom sink can be installed in 30 minutes. It may cost you extra money in the short term, but it will provide you with a professionally installed bathroom sink.

Condensation Buildup Under the Counter

If your undermount bathroom sink is not properly installed, one of the biggest issues you will encounter is leaking. This will occur if your undermount sink is not sealed. A silicon sealant is required if you want a tightly secured undermount bathroom sink. The countertop should also be sealed on both sides. Try not to use any porous material for your countertop, because it could end up allowing water to seep through and cause damages.

If you allow this to happen, several things could occur. For example, mold could build up rather quickly underneath your sink. If you do not realize this is happening, it could cause some irreversible damages. It could also affect the smell of your bathroom, which will inevitably cause discomfort whenever you are in it. It is crucial that your sink is installed properly in order to prevent as many damages or repairs that you possibly can.

Limited Faucet Options

Because an undermount sink is mounted underneath a countertop, there is no space for a bathroom faucet directly on it. Because of this, you basically only have two options. First, you can incorporate a deck mounted faucet on your countertop. Because it will be on your countertop, you will need holes drilled in order to accommodate the faucet. A deck mounted faucet will typically require one to three holes depending on the type of faucet that you plan on using.

The other option is a wall mounted faucet. This faucet will be a bit harder to install due to the plumbing requirements. A wall mounted faucet needs to be mounted into the wall with the water lines running behind the wall. This type of faucet should not be installed on one of the outer walls of your bathroom due to insulation concerns. The pipes and tubes need to be properly insulated to prevent any damages or freezing. However, if installed properly, these faucets are still good options.

More Expensive Than a Drop-In Sink

If you are trying to choose between a drop-in sink and an undermount sink, with price being the deciding factor, a drop-in sink will typically be cheaper. This is mainly because drop-in sinks are much easier to install and much easier to make. A drop-in sink can be made of many different materials, making it versatile in terms of price. An undermount bathroom sink will require durable and high quality materials to ensure great functionality and design.

The installation cost could also cost you more due to the difficulty of the process. Labor cost will almost definitely be more for an undermount sink than a drop-in sink. In addition, undermount sinks do not have faucet accommodation capabilities. The faucet needs to be installed on the countertop or wall. This will cause you to drill faucet holes in order to fit a faucet. Drop-in sinks will often have the capability of faucet hole inclusion, making them a bit easier to work with.

They Don’t Work With All Countertops

Undermount sinks need to be mounted securely to the underside of a countertop. Because of this, you will need to have a sturdy material in your specific countertop. A sturdy granite countertop will be a great option for supporting an undermount bathroom sink. You need to make sure that your countertop can support the full weight of an undermount and more. The last thing you want is for your undermount sink to fail and collapse through the countertop.

Avoid flimsy countertops that remotely feel like they can’t support enough weight. This will factor into the cost of your bathroom overall, but it will definitely be worth it in the long run. You should also consider a material that can be sealed easily and matches well with the design of the undermount sink of your choosing.

Undermount Sinks Vs. Drop-In Sink

Undermount sinks and drop-in sinks have many similarities as well as several differences. First of all, both of these sinks have basins that are underneath the counter of your vanity or countertop. The main difference is that undermount sinks are mounted underneath the countertop, and drop-in sinks are dropped directly into it. In addition, undermount sinks will be a bit more expensive in terms of the actual sink as well as the installation.

The material used in these sinks can also vary quite widely. Undermount sinks need to utilize a durable material in order to last long and provide you with comfort and functionality. Ceramic, cast iron and other similar materials are used in undermount bathroom sinks. Drop-in sinks can be made of ceramic, metal or other common bathroom sink materials. A drop-in sink will also cover the countertop edges, while an undermount sink will not.

What to Look for in an Undermount Bathroom Sink

  • Durable Materials - A high quality undermount bathroom sink will need to be crafted of a high quality material. This will ensure the sink will be easy to clean, long lasting and comfortable to use.
  • Comfortable Size - The size of your sink will determine how much space you have to use it comfortably. Gauge the size of your sink by looking at how big your overall bathroom design is.
  • Number of Basins - If you have multiple people using the sink, consider a double basin undermount sink. For single person use, one basin will be enough for comfortable use.
  • Price - Spend the appropriate amount of money on your undermount sink. The higher quality the materials are, the more expensive the sink will be. A cheaply made sink will cost less, but experience more issues.
  • Purchase From a Trusted Brand - Look at the reviews and reputation of the brand you are purchasing from. Customer reviews and quality of the products will tell you a decent amount of information about the product.

Importance of a Proper Installation

An undermount sink requires a safe, secure and proper installation. The first thing you need to do is to clear and clean the area of installation. Make sure there is no dust or debris on either side of the countertop. Clean the sink as well with a cleaning solution recommended for the specific material. A sealant is required to mount the sink onto the underside of the countertop. Undermount sinks will also require mounting hardware that can be included with the sink itself in many cases. Make sure the sink is perfectly lined up before screwing it to the countertop. The silicon can take up to 24 hours to dry, so do not use the sink until the process is completely finished.
A proper installation is absolutely necessary for the health of the sink and bathroom design as a whole. If your undermount sink comes with instructions, follow them carefully and precisely to ensure the installation process goes as smoothly as possible.

Final Note

All in all, an undermount sink has its fair share of benefits and drawbacks. If installed correctly, it can be one of the most beautiful and useful fixtures in your entire bathroom design. It makes your bathroom more valuable and creates a seamless transition from your countertop to the sink. However, it will cost a bit more in the short term and can be difficult to install. Weigh the pros and cons of an undermount bathroom sink and decide whether or not it is a good fit for your specific bathroom design.