Undermount Sinks

High-Quality Undermount Sinks for Modern Kitchen Applications

Undermount sinks have become one of the most popular choices in modern kitchen design because they provide a clean installation look, easy daily cleaning, and an efficient working space. At DHK, we manufacture durable, quiet, and well-constructed stainless steel undermount sinks designed specifically for kitchen use in residential homes, apartments, and renovation projects.

Each sink is produced with high-grade stainless steel, reinforced structure, and sound-dampening technology to ensure long-term performance in daily cooking, washing, and food-preparation environments.

Key Features of Our Undermount Sinks

✔ Premium Stainless Steel

Durable 304 or 316 stainless steel for corrosion, stain, and heat resistance.

✔ Sound-Insulation Technology

Anti-condensation coating + sound-dampening pads for quiet washing.

✔ Deep & Spacious Bowls

Extra depth for large cookware and improved cleaning efficiency.

✔ Scratch-Resistant Brushed Finish

Commercial-grade brushed surfaces reduce wear and fingerprints.

✔ Custom Accessories

Compatible with cutting boards, colanders, grids, and drying racks.

Types of Undermount Sinks We Offer

Single Bowl Undermount Sinks

Double Bowl Undermount Sinks

Workstation Undermount Sinks

Compact Bar / Prep Sinks

Why Choose Undermount Sinks?

Undermount sinks sit below the countertop surface, creating a smooth and modern kitchen appearance.
Key advantages include:

• Clean, seamless countertop lines

• Easy wiping — sweep food scraps directly into the sink

• More counter space vs. drop-in sinks

• Premium modern aesthetic

• Stronger stability when professionally installed

• Better integration with stone, quartz, or solid surface countertops

Kitchen Application Scenarios

Our undermount sinks are designed for:

• Residential kitchens

• Apartment and rental units

• Kitchen remodel projects

• Countertop and cabinet installations

• Small family kitchens to large cooking spaces

They fit well in daily washing, food preparation, and complex cooking routines found in active home kitchens.

How to Install an Undermount Kitchen Sink?

Proper installation is essential for long-term stability. Here are the core steps:

1. Prepare the Countertop Cut-out
   Ensure the cut-out follows the sink’s template and maintains enough edge support.

2. Attach Mounting Clips
   Install brackets underneath the countertop, aligning the sink correctly.

3. Apply Sealant
   A silicone seal is applied between the sink rim and the countertop underside for waterproofing.

4. Secure the Sink
   Tighten the clips evenly to avoid shifting. Final adjustments should be made before the sealant sets.

5. Install Plumbing Components
   Connect drain pipes, strainers, and optional garbage disposal units.

A professional installer is recommended for the best results.

How to Unclog a Kitchen Sink?

Kitchen sinks often become clogged due to grease, food debris, or soap buildup. Common solutions include:

• Flushing with hot water to dissolve light grease buildup

• Using a sink plunger to release small blockages

• Applying a baking soda + vinegar mixture for mild clogs

• Removing and cleaning the P-trap beneath the sink

• Avoiding chemical drain cleaners that may damage metal pipes

Regular cleaning can prevent future clogging in high-use kitchens.

How to Fix a Kitchen Sink Disposal?

If the disposal unit connected to an undermount sink stops working:

1. Check power and reset the unit using the bottom reset button.

2. Clear jammed food waste with a hex wrench using the manual turn slot.

3. Remove foreign objects such as utensils or hard food items.

4. Inspect wiring or leaks if the unit still fails.

5. Replace the disposal if the motor has failed or the internal bearings are worn.

Proper installation and regular cleaning extend disposal lifespan.

How to Choose the Right Undermount Sink?

• Choose 16-gauge for premium durability & noise reduction

• Determine bowl configuration based on kitchen workflow

• Consider R10 / R15 radius for easier cleaning

• Select a deeper bowl (9–10 inch) for improved utility

• Match size to your base cabinet width

• Add workstation ledges if you cook frequently

Undermount Sink vs. Topmount Sink

Single Bowl vs. Double Bowl Sinks — Choosing for Your Kitchen

FAQ for Undermount Sinks

1. What are the negatives of undermount sinks?

Undermount sinks have many advantages, but there are a few potential downsides to be aware of:

• More complex installation
  They must be securely attached under the countertop with clips, brackets, or a support frame. Poor installation can cause leaks or movement.

• Higher installation cost
  Compared with a simple top-mount sink, undermount installation often costs more because it requires more precision and sometimes professional support.

• Countertop limitations
  Undermount sinks work best with solid surfaces like quartz, granite, or solid surface. They are generally not recommended for standard laminate countertops without special reinforcement.

• Edge sealing & moisture
  The joint between sink and countertop must be sealed correctly. If sealant fails, water can seep in and cause mold or staining over time.

2. What holds an undermount sink in place, and why do some undermount sinks fall?

An undermount sink is held in place by a combination of:

• Mounting hardware – metal clips, brackets, or rails

• Strong adhesive or epoxy between the sink rim and the countertop

• Sometimes extra support frames or straps for large or heavy sinks

Undermount sinks usually fall or sag because of:

• Insufficient or poor-quality brackets

• Using adhesive only, without mechanical supports

• Incorrect installation on weak or unsuitable countertops

• Long-term exposure to heavy loads (e.g., people leaning or standing inside the sink)

A properly installed sink with good brackets + quality adhesive + solid countertop should stay secure for many years.

3. Are undermount sinks supposed to be flush with countertops? What is a negative reveal?

Not all undermount sinks are perfectly flush with the countertop. There are three common reveal styles:

• Zero / Flush Reveal
  The countertop edge lines up exactly with the sink opening. This gives a clean, minimalist look.

• Positive Reveal
  A small part of the sink rim is visible, extending slightly beyond the countertop cutout. It can make cleaning the edge easier but exposes more of the sink lip.

• Negative Reveal
  The countertop overhangs slightly over the sink opening so the rim is hidden. This looks very clean but can trap some debris under the counter edge if not cleaned carefully.

All three are “correct” – the choice depends on design preference, cleaning habits, and installer recommendation.

4. Can you replace an undermount sink without replacing the counter?

Yes, you can replace an undermount sink without changing the countertop, but:

• The new sink must fit the existing cutout or be slightly larger so the opening can be adjusted.

• The old sink and adhesive need to be carefully removed to avoid damaging the countertop.

• New mounting hardware and sealing must be properly installed.

For stone or quartz countertops, it’s usually best to have an experienced installer or fabricator handle the replacement to avoid cracks or chips.

5. What is better, an undermount or top-mount sink?

Both have pros and cons, and the “better” choice depends on your kitchen and countertop:

Undermount Sink – Pros:

• Clean, modern look

• Easier to wipe crumbs and water directly into the sink

• More usable countertop space

• Often preferred for quartz, granite, and high-end kitchens

Undermount Sink – Cons:

• Higher installation cost

• Needs solid-surface countertops

• Requires proper sealing and support

Top-Mount (Drop-In) Sink – Pros:

• Easier and cheaper to install or replace

• Works well with laminate countertops

• Good option for budget or quick remodels

Top-Mount Sink – Cons:

• Rim sits on the counter, can trap dirt

• Looks less seamless than undermount

6. What is the lifespan of an undermount sink?

The lifespan of an undermount sink depends mostly on the material and installation quality:

• Stainless steel undermount sinks
  With proper care, they can last 20 years or more. Good-quality 304 stainless steel is resistant to rust and staining.

• Composite or granite composite sinks
  Also long-lasting, but can be sensitive to harsh chemicals, extreme heat, or impact.

• Ceramic or fireclay undermount sinks
  Durable and scratch-resistant, but can chip or crack if heavy objects are dropped.

What can shorten the lifespan:

• Harsh chemicals like undiluted bleach

• Constant standing water and poor cleaning

• Incorrect installation causing stress or leaks

7. How do I pick the right undermount sink for my kitchen?

When choosing an undermount sink, consider:

1. Material

• Stainless steel – versatile, durable, modern look. 16-gauge is premium and more dent-resistant.

• Composite – quiet and stylish, but avoid harsh chemicals and extreme heat.

• Ceramic / fireclay – classic look, more resistant to staining, but heavier.

2. Size & Bowl Configuration

• Single bowl for large pots and pans

• Double bowl for separate washing and rinsing

• Check base cabinet width before choosing size.

3. Depth

• Deeper bowls (9–10 inch) hold more, but can be harder on the back for some users.

4. Corner Radius & Style

• Zero-radius (R0) for a sharp, modern look

• Small radius (R10 / R15) for easier cleaning

5. Countertop Compatibility

• Solid surfaces (quartz, granite, solid surface) are best for undermount

• For laminate, a top-mount sink or special mounting system is often a safer choice.

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We provide a full range of stainless steel undermount sinks suitable for all modern kitchen applications.
For detailed specifications, sample requests, or custom kitchen sink solutions:

Contact us for catalog & pricing
Request technical drawings
Ask about customization options