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Shop a premium selection of undermount kitchen sinks designed for clean lines, effortless cleanup, and long-lasting performance. Installed beneath the countertop, undermount sinks create a seamless transition from the counter to the basin, making them a top choice for modern, transitional, and high-traffic kitchens.
At The Sink Boutique, you’ll find hundreds of undermount sinks in stainless steel, fireclay, granite composite, copper, and natural stone. Choose from single or double bowl configurations and popular sizes that fit 30", 33", and 36" sink bases. Every order includes Free Shipping over $75 and our 110% Low Price Guarantee.
Undermount sinks are especially popular in kitchen remodels and new construction, where durability, hygiene, and a refined finish matter.
Undermount vs Drop-In: Undermount sinks offer a sleeker appearance and easier cleaning, while drop-in kitchen sinks are simpler to install and compatible with laminate countertops.
Undermount vs Farmhouse: Farmhouse sinks make a bold design statement, while undermount sinks blend seamlessly into the countertop for a minimalist look.
Undermount vs Workstation: Many undermount models are available as workstation sinks, combining a clean installation with integrated accessories for prep and cleanup.
Single Bowl Undermount Sinks:
Ideal for washing large cookware, baking sheets, and maximizing uninterrupted basin space. Shop Single Bowl Undermount Sinks.
Double Bowl Undermount Sinks:
Perfect for multitasking—wash on one side and rinse or prep on the other. Available in equal and offset bowl splits. Shop Double Bowl Undermount Sinks.
We carry leading undermount kitchen sink brands, including Ruvati, Bocchi, Elkay, Blanco, Karran, and Nantucket. As an authorized dealer, every sink is backed by full manufacturer warranties and expert U.S.-based support.
Need help choosing the right size or material? Start with our Kitchen Sink Buying Guide or chat with a Sink Specialist for personalized recommendations.




An undermount kitchen sink is installed beneath the countertop rather than resting on top of it. This creates a seamless transition from counter to sink, allowing for easier cleanup and a clean, modern appearance.
Yes. Undermount sinks are easier to clean than top-mount sinks because there is no raised rim. Crumbs and spills can be wiped directly into the sink, reducing buildup around the edges.
Undermount sinks are best paired with solid surface countertops such as quartz, granite, marble, or solid stone. They are not recommended for laminate countertops unless specifically designed for that use.
Yes. Undermount sinks must be securely mounted to the underside of the countertop and properly sealed. Professional installation is recommended to ensure long-term durability and correct alignment.
When properly installed, undermount sinks are extremely durable. High-quality materials such as stainless steel, fireclay, and granite composite are designed to withstand daily use, heat, and impact.
The most common undermount kitchen sink sizes are 30", 33", and 36". The correct size depends on your cabinet width, countertop cutout, and how you use your sink for cooking and cleaning.
Yes. Undermount sinks are available in single bowl, double bowl, and offset bowl configurations. Single bowl sinks maximize space for large cookware, while double bowl sinks are ideal for multitasking.
Many undermount sinks are available as workstation sinks, featuring integrated ledges for cutting boards, colanders, drying racks, and other accessories that increase functionality.
Most stainless steel undermount sinks include sound-dampening pads or coatings to reduce noise from running water and dishware.
Yes. Undermount sinks are considered a premium feature and are popular in modern kitchen designs, which can positively impact home resale value.
All undermount kitchen sinks sold by The Sink Boutique are backed by full manufacturer warranties and are sourced from authorized brands.
Yes. If you are unsure which undermount sink is right for your kitchen, a Sink Specialist can help you choose the best size, material, and configuration based on your space and cooking habits.
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On orders over $75 in the continental US
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Fast. Reliable. Free Ground Shipping Over $75.
We take pride in delivering large, high-value items like fireclay and stone sinks, vanities, and bathtubs safely and efficiently.
Here’s what to expect when you shop with The Sink Boutique.
We ship fast and safely with trusted carriers:




✅ We recommend reviewing our Freight Delivery Guide before receiving your order.
✅ Important: Freight deliveries must be inspected immediately upon arrival. Note any visible damage on the delivery receipt before signing.
What to expect:
Estimated Shipping Costs:
Important Notes:
✅ For exact shipping quotes to Canada, Alaska, Hawaii, or international addresses, please contact us before ordering.
Return shipping: For defective or damaged items, we cover replacement shipping costs. The customer is responsible for return shipping on exchanges or buyer's remorse returns. Returns & Refund Policy.
At The Sink Boutique, your satisfaction is our priority. We stand behind every product we sell and are here to ensure you're satisfied with your purchase.
What we promise:
Start here: Visit our Contact Us page and use our message form. Include your order number and photos if applicable. We’ll respond within 1 business day with the next steps.
We'll make it right at no cost to you:
We'll investigate right away.
We move fast, so call us ASAP. We work with multiple manufacturers who often process orders immediately.
We understand, choosing the perfect sink online can be tricky. That’s why we offer a 30-day return window with fair, transparent options.
To qualify for a return:
Option 1: Store Credit (Recommended)
This is the most cost-effective option for customers.
Option 2: Refund to Original Payment Method
Restocking fees are charged by our manufacturing partners to cover specialized handling, inspection, and repackaging of large, fragile items.
We ship most sinks factory-direct and often absorb outbound shipping costs on large, heavy items. Return shipping is handled separately to keep pricing fair and competitive for all customers.
We’re happy to help before you order:
📞 Call us at (844) 470-1212 or message us via chat, or the contact form.
Items marked "Final Sale" cannot be returned or exchanged per manufacturer policy, but we'll still replace them free if they arrive damaged.
Our handcrafted sinks may have minor variations that make each piece unique. Small bubbles, dimples, or surface irregularities on unfinished undersides are normal characteristics of the artisan process and don't affect functionality.
Questions about your specific item? Contact us – we're happy to review it with you.
Colors may appear different due to monitor settings and natural material variations. Please review our Color Disclaimer before ordering.
At The Sink Boutique, we want you to shop with total confidence. If you find a lower price on an identical item from an authorized U.S. retailer, we’ll match it, before or after your purchase. No gimmicks. No stress. Just honest pricing on the brands you love.
To protect both our customers and our pricing integrity, the following situations are not eligible for price matching
If you’ve already placed your order and believe you qualify for a post-purchase price adjustment (non-promotional), please reach out with your order number and details.
We often run limited-time events and holiday sales where prices are temporarily reduced due to supplier-driven discounts. These promotions are valid only during the advertised window, and we do not offer retroactive adjustments on these sale prices.
If you ordered just before a sale began, feel free to reach out. We may be able to issue a courtesy store credit depending on item and brand eligibility.
We’re always happy to answer questions. Contact our support team, and we’ll walk you through the process.
Most sinks require a base cabinet at least 3″ wider than the sink size.
Exact requirements can vary based on whether the sink is undermount, farmhouse, or drop-in. Always confirm with your installer.
You can find detailed cutout and installation requirements in the Product Specifications table and/or the documents section on this page.
Still unsure? Message us and we will get back to you.
