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Undermount Bathroom Sinks

Showing 1 - 24

Enhance the sleek and seamless look of your bathroom with our collection of Undermount Bathroom Sinks at The Sink Boutique. Designed for a clean and modern aesthetic, these sinks are installed beneath the countertop for a smooth, integrated appearance. Choose from a range of shapes, sizes, and materials to complement your bathroom's style. Undermount sinks not only provide a polished finish but also make cleaning a breeze.

Elevate your bathroom design with the understated elegance of our Undermount Bathroom Sinks collection.

Native Trails Nipomo 20" Rectangle NativeStone Concrete Farmhouse Bathroom Sink, Ash, NSL1915-A

Native Trails Nipomo 20" Rectangle NativeStone Concrete Farmhouse Bathroom Sink, Ash, NSL1915-A

Native Trails Nipomo 20" Rectangle NativeStone Concrete Farmhouse Bathroom Sink, Ash, NSL1915-A

$549.90 $846.00

In stock, ready to ship

Alternate Image for TOTO Aimes Rectangular Undermount Bathroom Sink with CEFIONTECT, Cotton White, Vitreous China, LT626G#01

Alternate Image for TOTO Aimes Rectangular Undermount Bathroom Sink with CEFIONTECT, Cotton White, Vitreous China, LT626G#01

TOTO Aimes Rectangular Undermount Bathroom Sink with CEFIONTECT, Cotton White, Vitreous China, LT626G#01

$580.00 $774.00

Low stock, ready to ship

Alternate Image for Native Trails Nipomo 20" Rectangle NativeStone Concrete Farmhouse Bathroom Sink, Pearl, NSL1915-P

Alternate Image for Native Trails Nipomo 20" Rectangle NativeStone Concrete Farmhouse Bathroom Sink, Pearl, NSL1915-P

Native Trails Nipomo 20" Rectangle NativeStone Concrete Farmhouse Bathroom Sink, Pearl, NSL1915-P

$616.85 $949.00

In stock, ready to ship

Alternate Image for Native Trails Tolosa 19" Oval NativeStone Concrete Bathroom Sink, Pearl, NSL1916-P

Alternate Image for Native Trails Tolosa 19" Oval NativeStone Concrete Bathroom Sink, Pearl, NSL1916-P

Native Trails Tolosa 19" Oval NativeStone Concrete Bathroom Sink, Pearl, NSL1916-P

$549.90 $846.00

In stock, ready to ship

Alternate Image for Native Trails Classic 19" Oval Copper Bathroom Sink, Polished Copper, CPS468

Alternate Image for Native Trails Classic 19" Oval Copper Bathroom Sink, Polished Copper, CPS468

Native Trails Classic 19" Oval Copper Bathroom Sink, Polished Copper, CPS468

$616.20 $948.00

In stock, ready to ship

Alternate Image for Native Trails Nipomo 19.5" x 15" Rectangle NativeStone Concrete ADA Farmhouse Bathroom Sink, Ocean, NSL1915-O

Alternate Image for Native Trails Nipomo 19.5" x 15" Rectangle NativeStone Concrete ADA Farmhouse Bathroom Sink, Ocean, NSL1915-O

Native Trails Nipomo 19.5" x 15" Rectangle NativeStone Concrete ADA Farmhouse Bathroom Sink, Ocean, NSL1915-O

$549.90 $846.00

Low stock, ready to ship

Alternate Image for Native Trails Nipomo 20" Rectangle NativeStone Concrete Farmhouse Bathroom Sink, Slate, NSL1915-S

Alternate Image for Native Trails Nipomo 20" Rectangle NativeStone Concrete Farmhouse Bathroom Sink, Slate, NSL1915-S

Native Trails Nipomo 20" Rectangle NativeStone Concrete Farmhouse Bathroom Sink, Slate, NSL1915-S

$549.90 $846.00

Low stock, ready to ship

Alternate Image for Nantucket Sinks Brightwork Home 20" Rectangle Undermount Stainless Steel Bathroom Sink, Silver, 18 Gauge, TRS-OF

Alternate Image for Nantucket Sinks Brightwork Home 20" Rectangle Undermount Stainless Steel Bathroom Sink, Silver, 18 Gauge, TRS-OF

Nantucket Sinks Brightwork Home 20" Rectangle Undermount Stainless Steel Bathroom Sink, Silver, 18 Gauge, TRS-OF

$599.99 $799.99

In stock, ships in 1–2 days

Alternate Image for Elkay Asana 20" Stainless Steel Bathroom Sink, Lustrous Satin, ELUH1811

Alternate Image for Elkay Asana 20" Stainless Steel Bathroom Sink, Lustrous Satin, ELUH1811

Elkay Asana 20" Stainless Steel Bathroom Sink, Lustrous Satin, ELUH1811

$640.00 $1,161.00

In stock

Alternate Image for Native Trails Nipomo 19.5" x 15" Rectangle NativeStone Concrete ADA Farmhouse Bathroom Sink, Charcoal, NSL1915-C

Alternate Image for Native Trails Nipomo 19.5" x 15" Rectangle NativeStone Concrete ADA Farmhouse Bathroom Sink, Charcoal, NSL1915-C

Native Trails Nipomo 19.5" x 15" Rectangle NativeStone Concrete ADA Farmhouse Bathroom Sink, Charcoal, NSL1915-C

$549.90 $846.00

In stock, ready to ship

Alternate Image for TOTO Lloyd Rectangular Undermount Bathroom Sink, Colonial White, Vitreous China, LT931#11

Alternate Image for TOTO Lloyd Rectangular Undermount Bathroom Sink, Colonial White, Vitreous China, LT931#11

TOTO Lloyd Rectangular Undermount Bathroom Sink, Colonial White, Vitreous China, LT931#11

$530.00 $675.00

Low stock, ready to ship

Alternate Image for TOTO Lloyd Rectangular Undermount Bathroom Sink, Cotton White, Vitreous China, LT931#01

Alternate Image for TOTO Lloyd Rectangular Undermount Bathroom Sink, Cotton White, Vitreous China, LT931#01

TOTO Lloyd Rectangular Undermount Bathroom Sink, Cotton White, Vitreous China, LT931#01

$550.00 $709.00

Low stock, ready to ship

Alternate Image for Ruvati Ariaso 34 x 14 inch Brushed Gold Polished Brass Rectangular Bathroom Sink Undermount, Stainless Steel, 16, RVH6134GG

Alternate Image for Ruvati Ariaso 34 x 14 inch Brushed Gold Polished Brass Rectangular Bathroom Sink Undermount, Stainless Steel, 16, RVH6134GG

Ruvati Ariaso 34 x 14 inch Brushed Gold Polished Brass Rectangular Bathroom Sink Undermount, Stainless Steel, 16, RVH6134GG

$599.00 $748.75

In stock, ships in 1–2 days

Alternate Image for Native Trails Cameo 17" Oval Copper Bathroom Sink, Antique Copper, CPS248

Alternate Image for Native Trails Cameo 17" Oval Copper Bathroom Sink, Antique Copper, CPS248

Native Trails Cameo 17" Oval Copper Bathroom Sink, Antique Copper, CPS248

$632.45 $973.00

In stock, ready to ship

Alternate Image for Native Trails Tolosa 19" x 16" Oval NativeStone Concrete ADA Bathroom Sink, Ocean, NSL1916-O

Alternate Image for Native Trails Tolosa 19" x 16" Oval NativeStone Concrete ADA Bathroom Sink, Ocean, NSL1916-O

Native Trails Tolosa 19" x 16" Oval NativeStone Concrete ADA Bathroom Sink, Ocean, NSL1916-O

$568.00 $740.00

Low stock, ready to ship

Alternate Image for Native Trails Cabrillo 21" Rectangle NativeStone Concrete Bathroom Sink, Pearl, NSL2014-P

Alternate Image for Native Trails Cabrillo 21" Rectangle NativeStone Concrete Bathroom Sink, Pearl, NSL2014-P

Native Trails Cabrillo 21" Rectangle NativeStone Concrete Bathroom Sink, Pearl, NSL2014-P

$549.90 $846.00

In stock, ready to ship

Alternate Image for Nantucket Sinks Brightwork Home 16" Copper Bathroom Sink, Light Copper, SQRC-OF

Alternate Image for Nantucket Sinks Brightwork Home 16" Copper Bathroom Sink, Light Copper, SQRC-OF

Nantucket Sinks Brightwork Home 16" Copper Bathroom Sink, Light Copper, SQRC-OF

$674.99 $899.99

Low stock, ships in 1–2 days

Sale

Alternate Image for Nantucket Sinks Brightwork Home 24" Stainless Steel Bathroom Sink, TRS2416

Alternate Image for Nantucket Sinks Brightwork Home 24" Stainless Steel Bathroom Sink, TRS2416

Nantucket Sinks Brightwork Home 24" Stainless Steel Bathroom Sink, TRS2416

$749.99 $999.99

In stock, ships in 1–2 days

Alternate Image for Native Trails Nipomo 20" Rectangle NativeStone Concrete Farmhouse Bathroom Sink, Earth, NSL1915-E

Alternate Image for Native Trails Nipomo 20" Rectangle NativeStone Concrete Farmhouse Bathroom Sink, Earth, NSL1915-E

Native Trails Nipomo 20" Rectangle NativeStone Concrete Farmhouse Bathroom Sink, Earth, NSL1915-E

$549.90 $846.00

Low stock, ready to ship

Alternate Image for TOTO Rectangular Undermount Bathroom Sink, Ebony, Vitreous China, LT191#51

Alternate Image for TOTO Rectangular Undermount Bathroom Sink, Ebony, Vitreous China, LT191#51

TOTO Rectangular Undermount Bathroom Sink, Ebony, Vitreous China, LT191#51

$610.00 $831.00

Low stock, ready to ship

Alternate Image for Native Trails Tolosa 19" x 16" Oval NativeStone Concrete ADA Bathroom Sink, Charcoal, NSL1916-C

Alternate Image for Native Trails Tolosa 19" x 16" Oval NativeStone Concrete ADA Bathroom Sink, Charcoal, NSL1916-C

Native Trails Tolosa 19" x 16" Oval NativeStone Concrete ADA Bathroom Sink, Charcoal, NSL1916-C

$568.00 $740.00

Low stock, ready to ship

New

Nantucket Sinks Regatta 22" x 14.5" Rectangle Undermount Fireclay Bathroom Sink with Accessories, Light Blue/Grey Distress, RC2035SS

Nantucket Sinks Regatta 22" x 14.5" Rectangle Undermount Fireclay Bathroom Sink with Accessories, Light Blue/Grey Distress, RC2035SS

Nantucket Sinks Regatta 22" x 14.5" Rectangle Undermount Fireclay Bathroom Sink with Accessories, Light Blue/Grey Distress, RC2035SS

$749.99 $999.99

In stock, ships in 1–2 days

Alternate Image for Native Trails Baby Classic 16" Oval Nickel Bathroom Sink, Brushed Nickel, CPS538

Alternate Image for Native Trails Baby Classic 16" Oval Nickel Bathroom Sink, Brushed Nickel, CPS538

Native Trails Baby Classic 16" Oval Nickel Bathroom Sink, Brushed Nickel, CPS538

$737.10 $1,134.00

Low stock, ready to ship

Alternate Image for Native Trails Baby Classic 16" Oval Copper Bathroom Sink, Polished Copper, CPS438

Alternate Image for Native Trails Baby Classic 16" Oval Copper Bathroom Sink, Polished Copper, CPS438

Native Trails Baby Classic 16" Oval Copper Bathroom Sink, Polished Copper, CPS438

$536.90 $826.00

Low stock, ready to ship

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Return 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:

Free replacements for damaged or incorrect items upon delivery
30-day return window for peace of mind with fair terms and fees
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Fast response within 1 business day

Need Help? We Are Here For You

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.

Quick Links

Arrived Damaged or Wrong Item?
Missing Items?
Need to Cancel Your Order?
Product isn't quite Right for your space?
Exchanges
Important Details

Common Situations & Solutions

Arrived Damaged or Wrong Item?

We'll make it right at no cost to you:

Contact us within 48 hours of delivery. Report the damage here.
We'll arrange a free replacement immediately
Follow our Delivery Inspection Guidelines for the fastest resolution

Missing Items?

We'll investigate right away.

Report within 24 hours of delivery confirmation
We'll track down your missing item immediately

Need to Cancel Your Order?

We move fast, so call us ASAP. We work with multiple manufacturers who often process orders immediately.

Best option: Call (844) 470-1212 (Mon–Fri, 9–5 PM EST)
Email cancellation requests aren't guaranteed unless we confirm
In-stock items often move to shipping immediately, even after hours
Once manufacturers begin processing, cancellation becomes a standard return

Product Isn't Quite Right for Your Space?

We understand – finding the perfect fit can be tricky. Eligible items can be returned within 30 days. Here's how it works:

To qualify:

The item must be unused, uninstalled, and in original packaging
Return authorization is required (we'll provide clear instructions)
Return must be trackable and insured

Return fees apply:

Return shipping is the customer’s responsibility (varies by location and item size)
Manufacturer restocking fee (up to 25%) - this is an industry-standard fee charged by manufacturers, not The Sink Boutique, to cover the specialized handling these products require.

We'll confirm exact costs when you request your return authorization.

Exchanges

Exchanges are handled as a return + new purchase.
Simply return the original product (as above) and place a new order.

Important Details

Final Sale Items

Items marked "Final Sale" cannot be returned or exchanged per manufacturer policy, but we'll still replace them free if they arrive damaged.

Natural Variations

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.

Color Matching

Colors may appear different due to monitor settings and natural material variations. Please review our Color Disclaimer before ordering.