We template, cut, and mount undermount sinks in granite, quartz, and other slabs. The sink must be on site before we template to ensure a precise fit.
An undermount sink cutout is a routed opening in a countertop slab that lets the sink drop in from below and sit flush with the underside. The cutout follows the exact shape of the sink rim, leaving a small reveal or none at all.
The work starts with the sink on site. We measure the sink, mark the slab, and route the opening with a diamond blade. After the cut, we polish the edges and drill any faucet holes. The sink is then mounted with clips or adhesive, depending on the material and sink type.
This page explains the steps, the reveal styles, why the sink must be on site before templating, and how we handle faucet holes and mounting. If you need a cutout, call for a straight quote.
We cannot template the cutout until the sink is on site. The sink rim determines the exact shape and size of the opening. If the sink arrives after templating, the cutout may not fit, and the job will need to be redone. This is a standard requirement, not a delay.
The reveal is the small gap between the sink rim and the countertop edge. A zero reveal means the sink sits flush with the cutout. A small reveal, usually an eighth to a quarter inch, is common and easier to clean. The reveal style is chosen during templating and affects the look and maintenance of the install.
Faucet holes are drilled after the cutout is routed. The number and placement of holes depend on the faucet and sink design. We drill holes to match the sink or faucet specifications, but if the sink does not have pre-marked holes, we will need the faucet on site to confirm placement.
An undermount sink cutout is a routed opening in a countertop slab that allows the sink to be mounted from below. The cutout follows the exact shape of the sink rim, leaving a small gap called the reveal. The sink is secured with clips or adhesive, and the countertop edge is polished to match the rest of the slab.
The cutout is done with a diamond blade router, which leaves a smooth edge. The size and shape of the cutout depend on the sink, so the sink must be on site before templating. If the sink is not available, the cutout cannot be templated accurately, and the job may need to be redone.
Undermount sinks are popular because they are easier to clean and give a seamless look. However, they require precise templating and cutting to ensure a proper fit. The cutout must be done carefully to avoid chipping or cracking the slab, especially with natural stone like granite or marble.
The process starts with the sink on site. We measure the sink rim and mark the slab with the exact dimensions. The slab is then routed with a diamond blade to create the opening. After routing, the edges are polished to match the rest of the countertop, and any faucet holes are drilled.
Once the cutout is complete, the sink is mounted. For most materials, we use clips that attach to the underside of the countertop and hold the sink in place. For some engineered stones or porcelain, we use adhesive to secure the sink. The mounting method depends on the sink and slab material.
The reveal style is chosen during templating. A zero reveal means the sink sits flush with the countertop edge, while a small reveal leaves a slight gap. The reveal affects the look and maintenance of the install. A zero reveal is harder to clean but gives a seamless appearance, while a small reveal is easier to maintain but may collect debris.
Undermount sinks offer a clean, seamless look and are easier to clean than top-mount sinks. However, they require precise templating and cutting, which can add complexity to the job. The sink must be on site before templating, and any changes to the sink after templating may require a new cutout.
Natural stone like granite and marble is porous and can stain or etch, especially around the sink area. Sealing the stone helps, but it is not foolproof. Engineered quartz is non-porous and does not need sealing, but it can be damaged by direct heat or long UV exposure outdoors. The material you choose affects the maintenance and durability of the sink area.
Undermount sinks also require a solid support structure underneath. The countertop must be strong enough to hold the sink and the weight of water and dishes. If the cabinetry is not sturdy, additional support may be needed. This is something we check during templating.
The reveal style is a matter of preference and maintenance. A zero reveal gives a seamless look but can be harder to clean, as debris may get trapped between the sink and countertop. A small reveal, usually an eighth to a quarter inch, is easier to clean but may not look as sleek. The reveal is chosen during templating and cannot be changed after the cutout is made.
Faucet holes are drilled based on the sink or faucet specifications. If the sink has pre-marked holes, we drill to match. If not, we will need the faucet on site to confirm placement. Some faucets require multiple holes, while others need only one. The number and placement of holes affect the look and functionality of the sink area.
If you are unsure about the reveal or faucet holes, we can discuss options during templating. The choices you make will affect the final look and maintenance of the install, so it is important to consider them carefully. Once the cutout is made, changes may require a new slab or additional work.
To get started, call or email to schedule a slab selection and templating appointment. We will visit your site, measure the space, and discuss the sink and faucet options. The sink must be on site before templating to ensure a precise fit. If you do not have the sink yet, we can help you choose one that fits your budget and style.
After templating, we will give you a written quote with the dates for fabrication and installation. The quote includes the cutout, mounting, and any faucet holes. If you have questions about the process or materials, we can discuss them during the templating visit.
Once you approve the quote, we will fabricate the slab and schedule the installation. The crew that templates is the same crew that installs, so there are no surprises. If you need a rental or flip-grade slab, we work with a partner to provide affordable options. Call for a straight quote.
$38 per square foot, cut, measure, and install included. Jobs over 1,000 square feet: $30 per square foot.
Sink cutout and sink set are included in the fabrication work. Non standard work is still quoted before work begins. Send the rough square footage and the rooms involved, or call (512) 297-7493 for a straight quote.
The sink rim determines the exact shape and size of the cutout. If the sink is not on site, we cannot template accurately, and the cutout may not fit. This is a standard requirement for undermount sinks, not a delay. If the sink arrives after templating, the job may need to be redone.
If the sink arrives after templating, the cutout may not fit, and the job will need to be redone. This can cause delays and additional costs. To avoid this, make sure the sink is on site before we template. If you are unsure about the sink, we can help you choose one during the templating visit.
No, the reveal style is chosen during templating and cannot be changed after the cutout is made. The reveal affects the look and maintenance of the install, so it is important to decide before templating. If you are unsure, we can discuss options during the templating visit.
A zero reveal gives a seamless look but can be harder to clean. Debris may get trapped between the sink and countertop, and the lack of a gap can make it difficult to wipe the area clean. A small reveal is easier to maintain but may not look as sleek. The choice depends on your preference and cleaning habits.
We drill faucet holes based on the sink or faucet specifications. If the sink has pre-marked holes, we drill to match. If not, we will need the faucet on site to confirm placement. Some sinks do not require holes, such as those with a single-hole faucet or a wall-mounted faucet.
Tell us the rooms, the rough square footage and what you have in mind for undermount sink cutouts. You get a number for the whole job, in writing, before anyone cuts anything.