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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.

Alternate Image for Native Trails Trough 48" Rectangle Nickel Bathroom Sink, Brushed Nickel, CPS508

Alternate Image for Native Trails Trough 48" Rectangle Nickel Bathroom Sink, Brushed Nickel, CPS508

Native Trails Trough 48" Rectangle Nickel Bathroom Sink, Brushed Nickel, CPS508

$3,472.50 $4,630.00

Low stock, ready to ship

Alternate Image for Karran Cinox 15.75" x 15.75" Square Undermount Stainless Steel Bathroom Sink, 16 Gauge, CCU500SS

Alternate Image for Karran Cinox 15.75" x 15.75" Square Undermount Stainless Steel Bathroom Sink, 16 Gauge, CCU500SS

Karran Cinox 15.75" x 15.75" Square Undermount Stainless Steel Bathroom Sink, 16 Gauge, CCU500SS

$299.95

In stock, ships in 1 day

Alternate Image for Karran Cinox 15" x 21.625" Rectangular Undermount Stainless Steel Bathroom Sink, 16 Gauge, CCU300SS

Alternate Image for Karran Cinox 15" x 21.625" Rectangular Undermount Stainless Steel Bathroom Sink, 16 Gauge, CCU300SS

Karran Cinox 15" x 21.625" Rectangular Undermount Stainless Steel Bathroom Sink, 16 Gauge, CCU300SS

$329.95

In stock, ships in 1 day

Alternate Image for Karran Cinox 17" x 27.5" Oval Undermount Stainless Steel Bathroom Sink, 16 Gauge, CCU200SS

Alternate Image for Karran Cinox 17" x 27.5" Oval Undermount Stainless Steel Bathroom Sink, 16 Gauge, CCU200SS

Karran Cinox 17" x 27.5" Oval Undermount Stainless Steel Bathroom Sink, 16 Gauge, CCU200SS

$339.95

In stock, ships in 1 day

Alternate Image for Karran Cinox 15.75" x 15.75" Round Undermount Stainless Steel Bathroom Sink, 16 Gauge, CCU100SS

Alternate Image for Karran Cinox 15.75" x 15.75" Round Undermount Stainless Steel Bathroom Sink, 16 Gauge, CCU100SS

Karran Cinox 15.75" x 15.75" Round Undermount Stainless Steel Bathroom Sink, 16 Gauge, CCU100SS

$259.95

Low stock, ships in 1 day

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 Karran 14.5" x 14.5" Spherical Undermount Stainless Steel ADA Bathroom Sink, 18 Gauge, UV-1515

Alternate Image for Karran 14.5" x 14.5" Spherical Undermount Stainless Steel ADA Bathroom Sink, 18 Gauge, UV-1515

Karran 14.5" x 14.5" Spherical Undermount Stainless Steel ADA Bathroom Sink, 18 Gauge, UV-1515

$129.95

In stock, ships in 1 day

Alternate Image for Native Trails Trough 30" Rectangle Nickel Bathroom Sink, Brushed Nickel, CPS500

Alternate Image for Native Trails Trough 30" Rectangle Nickel Bathroom Sink, Brushed Nickel, CPS500

Native Trails Trough 30" Rectangle Nickel Bathroom Sink, Brushed Nickel, CPS500

$2,313.00 $3,084.00

Low stock, ready to ship

Sale

Alternate Image for Nantucket Sinks Brightwork Home 48" x 14" x 6" Rectangle Undermount Stainless Steel Bathroom Sink, 18 Gauge, TRS48-OF

Alternate Image for Nantucket Sinks Brightwork Home 48" x 14" x 6" Rectangle Undermount Stainless Steel Bathroom Sink, 18 Gauge, TRS48-OF

Nantucket Sinks Brightwork Home 48" x 14" x 6" Rectangle Undermount Stainless Steel Bathroom Sink, 18 Gauge, TRS48-OF

$1,649.99 $2,199.99

In stock, ships in 1–2 days

Alternate Image for Native Trails Trough 48" Rectangle Nickel Bathroom Sink, Polished Nickel, CPS808

Alternate Image for Native Trails Trough 48" Rectangle Nickel Bathroom Sink, Polished Nickel, CPS808

Native Trails Trough 48" Rectangle Nickel Bathroom Sink, Polished Nickel, CPS808

$3,835.50 $5,114.00

Low stock, ready to ship

Alternate Image for Native Trails Classic 19" Oval Nickel Bathroom Sink, Polished Nickel, CPS868

Alternate Image for Native Trails Classic 19" Oval Nickel Bathroom Sink, Polished Nickel, CPS868

Native Trails Classic 19" Oval Nickel Bathroom Sink, Polished Nickel, CPS868

$1,083.75 $1,445.00

Low stock, ready to ship

Alternate Image for Native Trails Cameo 17" Oval Nickel Bathroom Sink, Brushed Nickel, CPS548

Alternate Image for Native Trails Cameo 17" Oval Nickel Bathroom Sink, Brushed Nickel, CPS548

Native Trails Cameo 17" Oval Nickel Bathroom Sink, Brushed Nickel, CPS548

$1,003.50 $1,338.00

Low stock, ready to ship

Alternate Image for Houzer 17" Stainless Steel Undermount Bathroom Sink, Round, with Overflow Hole, CRO-1620-1

Alternate Image for Houzer 17" Stainless Steel Topmount Bathroom Sink, Round, CRT-1620-1

Houzer 17" Stainless Steel Undermount Bathroom Sink, Round, with Overflow Hole, CRO-1620-1

$194.00 $200.25

In stock, ready to ship

Alternate Image for Ruvati Cresta 20 x 14 inch Brushed Stainless Steel Undermount Ramp Bathroom Sink Stainless Steel, 16, RVH6140ST

Alternate Image for Ruvati Cresta 20 x 14 inch Brushed Stainless Steel Undermount Ramp Bathroom Sink Stainless Steel, 16, RVH6140ST

Ruvati Cresta 20 x 14 inch Brushed Stainless Steel Undermount Ramp Bathroom Sink Stainless Steel, 16, RVH6140ST

$349.00 $436.25

In stock, ships in 1–2 days

Alternate Image for Native Trails Trough 30" Rectangle Nickel Bathroom Sink, Polished Nickel, CPS800

Alternate Image for Native Trails Trough 30" Rectangle Nickel Bathroom Sink, Polished Nickel, CPS800

Native Trails Trough 30" Rectangle Nickel Bathroom Sink, Polished Nickel, CPS800

$2,482.50 $3,310.00

Low stock, ready to ship

Alternate Image for Nantucket Sinks Brightwork Home 20" Stainless Steel Bathroom Sink, TRS

Alternate Image for Nantucket Sinks Brightwork Home 20" Stainless Steel Bathroom Sink, TRS

Nantucket Sinks Brightwork Home 20" Stainless Steel Bathroom Sink, TRS

$618.74 $824.99

In stock, ships in 1–2 days

Alternate Image for Karran 17.25" x 15" Rectangular Undermount Stainless Steel Bathroom Sink, 18 Gauge, UV-1715

Alternate Image for Karran 17.25" x 15" Rectangular Undermount Stainless Steel Bathroom Sink, 18 Gauge, UV-1715

Karran 17.25" x 15" Rectangular Undermount Stainless Steel Bathroom Sink, 18 Gauge, UV-1715

$139.95

In stock, ships in 1 day

Sale

Alternate Image for Ruvati Ariaso 20" Rectangle Undermount Stainless Steel Bathroom Sink, 16 Gauge, RVH6110

Alternate Image for Ruvati Ariaso 20" Rectangle Undermount Stainless Steel Bathroom Sink, 16 Gauge, RVH6110

Ruvati Ariaso 20" Rectangle Undermount Stainless Steel Bathroom Sink, 16 Gauge, RVH6110

$199.00 $273.75

In stock, ships in 1–2 days

Alternate Image for Karran 17.25" x 15" Rectangular Undermount Stainless Steel Bathroom Sink, 18 Gauge, UV-1816

Alternate Image for Karran 17.25" x 15" Rectangular Undermount Stainless Steel Bathroom Sink, 18 Gauge, UV-1816

Karran 17.25" x 15" Rectangular Undermount Stainless Steel Bathroom Sink, 18 Gauge, UV-1816

$139.95

In stock, ships in 1 day

Alternate Image for Karran Cinox 15.75" x 23.625" Rectangular Undermount Stainless Steel Bathroom Sink, 16 Gauge, CCU400SS

Alternate Image for Karran Cinox 15.75" x 23.625" Rectangular Undermount Stainless Steel Bathroom Sink, 16 Gauge, CCU400SS

Karran Cinox 15.75" x 23.625" Rectangular Undermount Stainless Steel Bathroom Sink, 16 Gauge, CCU400SS

$329.95

Low stock, ships in 1 day

Alternate Image for Houzer 18" Stainless Steel Undermount Bathroom Sink, Oval, CH-1800-1

Houzer 18" Stainless Steel Undermount Bathroom Sink, Oval, CH-1800-1

$209.00 $247.00

In stock, ready to ship

Alternate Image for Native Trails Avila 21" Rectangle Nickel Bathroom Sink, Polished Nickel, CPS845

Alternate Image for Native Trails Avila 21" Rectangle Nickel Bathroom Sink, Polished Nickel, CPS845

Native Trails Avila 21" Rectangle Nickel Bathroom Sink, Polished Nickel, CPS845

$1,440.00 $1,920.00

Low stock, ready to ship

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 Houzer 17" Stainless Steel Undermount Bathroom Sink, Round, CR-1620-1

Alternate Image for Houzer 17" Stainless Steel Topmount Bathroom Sink, Round, CRT-1620-1

Houzer 17" Stainless Steel Undermount Bathroom Sink, Round, CR-1620-1

$187.00

In stock, ready to ship

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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.

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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.