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Best Granite Composite Undermount Kitchen Sink of 2026
Last updated on 03/04/2026
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1
BLANCO SUBLINE 320-U | SILGRANIT Sink in White | Installation Type: undermount Installation | for 40 cm Wide Base cabinets | One Cut-Out and only one Installation | [35x46x20.2 cm]
BLANCO
Why we love it
Practical and high-quality sink design.
Granite composite is highly durable.
Includes handy kitchen accessories.
Main Highlights
Practical sink in white: When the worktop is the highlight, but a practical workspace is still needed, the granite undermount sink for 40 cm base units is ideal
High-quality features: Fitted sink with C-overflow ️ and an even level BLANCO InFino ️ drain system – Without edges, rims or seams for easy cleaning
Granite sink made of SILGRANIT: The patented composite material of up to 80% quartz sand is a high-quality synthetic stone – easy-care, scratch-resistant, durable and heat-resistant
Using the full potential of the kitchen sink: With the matching accessories such as the top rails, many work steps can be combined at the sink – from food preparation to washing up
Scope of delivery: drain set with space-saving pipe and drain connection – 3 ½'' InFino ️ strainer valve and mounting set – professional and precise installation required – only suitable for sealed work surfaces
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9.8
Exceptional
Check Price
9.8
Exceptional
BLANCO
BLANCO SUBLINE 320-U | SILGRANIT Sink in White | Installation Type: undermount Installation | for 40 cm Wide Base cabinets | One Cut-Out and only one Installation | [35x46x20.2 cm]
Check Price
Show More
Why we love it
Practical and high-quality sink design.
Granite composite is highly durable.
Includes handy kitchen accessories.
Main Highlights
Practical sink in white: When the worktop is the highlight, but a practical workspace is still needed, the granite undermount sink for 40 cm base units is ideal
High-quality features: Fitted sink with C-overflow ️ and an even level BLANCO InFino ️ drain system – Without edges, rims or seams for easy cleaning
Granite sink made of SILGRANIT: The patented composite material of up to 80% quartz sand is a high-quality synthetic stone – easy-care, scratch-resistant, durable and heat-resistant
Using the full potential of the kitchen sink: With the matching accessories such as the top rails, many work steps can be combined at the sink – from food preparation to washing up
Scope of delivery: drain set with space-saving pipe and drain connection – 3 ½'' InFino ️ strainer valve and mounting set – professional and precise installation required – only suitable for sealed work surfaces
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Value for Money
2
GROHE K700U - Quartz Composite Sink Undermounted with Overflow (1 bowl 417 x 366 x 203 mm, Included: Waste Kit, Basket Strainer Waste, Mounting Set), Dimensions: 457 x 406 mm, Granite Black, 31653AP0
GROHE
Why we love it
Resistant to heat and scratches.
Insulated for noise reduction.
Easy and quick installation.
Main Highlights
The composite material uses 80% quartz mixed with 20% acrylic resin for a super hardwearing material; Molded using a special computer-controlled casting process, it creates sinks that are extremely resistant to heat (up to 180° C), dents, scratches and stains; It also doesn’t fade under UV light, meaning it will retain its good looks as well as its premium performance; The velvety smooth pore-free surface is hygienic and easy to clean as well as 100% food-safe
Minimize the sound of running water and clanging pots and pans with the GROHE Whisper technology; A special insulation on the underside of the sink reduces noise for a more peaceful kitchen
Thanks to innovative manufacturing techniques, all GROHE composite sinks have a depth of at least 20cm, meaning they can handle even your largest pots and pans
The GROHE QuickFix system (kit supplied) makes installing your sink quick and hassle-free with no additional equipment required; The sinks come with two pre-punched tap holes, making them fully reversible; And the clever space-saver siphon design optimises the space under the sink, leaving plenty of room for storing essentials out of sight
5 Year Manufacturer's Warranty
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9.7
Exceptional
Check Price
9.7
Exceptional
GROHE
GROHE K700U - Quartz Composite Sink Undermounted with Overflow (1 bowl 417 x 366 x 203 mm, Included: Waste Kit, Basket Strainer Waste, Mounting Set), Dimensions: 457 x 406 mm, Granite Black, 31653AP0
Check Price
Show More
Why we love it
Resistant to heat and scratches.
Insulated for noise reduction.
Easy and quick installation.
Main Highlights
The composite material uses 80% quartz mixed with 20% acrylic resin for a super hardwearing material; Molded using a special computer-controlled casting process, it creates sinks that are extremely resistant to heat (up to 180° C), dents, scratches and stains; It also doesn’t fade under UV light, meaning it will retain its good looks as well as its premium performance; The velvety smooth pore-free surface is hygienic and easy to clean as well as 100% food-safe
Minimize the sound of running water and clanging pots and pans with the GROHE Whisper technology; A special insulation on the underside of the sink reduces noise for a more peaceful kitchen
Thanks to innovative manufacturing techniques, all GROHE composite sinks have a depth of at least 20cm, meaning they can handle even your largest pots and pans
The GROHE QuickFix system (kit supplied) makes installing your sink quick and hassle-free with no additional equipment required; The sinks come with two pre-punched tap holes, making them fully reversible; And the clever space-saver siphon design optimises the space under the sink, leaving plenty of room for storing essentials out of sight
5 Year Manufacturer's Warranty
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3
Franke Sirius SID160PW 1.5 Bowl Tectonite Undermount White Kitchen Sink
FRANKE
Why we love it
Impressive heat resistance feature.
Secure undermount installation type.
Backed by 50-year guarantee.
Main Highlights
Heat resistance up to 300 degrees C
Stain and scratch resistant
Minimum cabinet size (mm): 600
Sink dimensions (mm): W560 x D440
50 Years Guarantee
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9.6
Superb
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9.6
Superb
FRANKE
Franke Sirius SID160PW 1.5 Bowl Tectonite Undermount White Kitchen Sink
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Show More
Why we love it
Impressive heat resistance feature.
Secure undermount installation type.
Backed by 50-year guarantee.
Main Highlights
Heat resistance up to 300 degrees C
Stain and scratch resistant
Minimum cabinet size (mm): 600
Sink dimensions (mm): W560 x D440
50 Years Guarantee
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4
Flode Comite 1.5 Bowl Undermount Kitchen Sink 670 x 440 x 200mm – Gloss Grey – Composite Double Bowl Basin – Chrome Basket Wastes Included – 600mm Cabinet
Flode
Why we love it
Seamless under-mount design.
Dual bowls for rinsing.
Durable composite build.
Main Highlights
✔ MODERN UNDERMOUNT STYLE: Creates a flush, seamless finish beneath your worktop for a clean, contemporary look.
✔ MULTI-FUNCTIONAL 1.5 BOWL: Main bowl and half bowl combination allows rinsing and washing simultaneously.
✔ ELEGANT GLOSS GREY SURFACE: Smooth gloss grey finish complements industrial and contemporary kitchen designs.
✔ ROBUST COMPOSITE BUILD: Scratch resistant and durable for long-lasting performance.
✔ 90MM CHROME BASKET WASTES: Supplied for reliable drainage and premium detail.
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9.5
Superb
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9.5
Superb
Flode
Flode Comite 1.5 Bowl Undermount Kitchen Sink 670 x 440 x 200mm – Gloss Grey – Composite Double Bowl Basin – Chrome Basket Wastes Included – 600mm Cabinet
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Show More
Why we love it
Seamless under-mount design.
Dual bowls for rinsing.
Durable composite build.
Main Highlights
✔ MODERN UNDERMOUNT STYLE: Creates a flush, seamless finish beneath your worktop for a clean, contemporary look.
✔ MULTI-FUNCTIONAL 1.5 BOWL: Main bowl and half bowl combination allows rinsing and washing simultaneously.
✔ ELEGANT GLOSS GREY SURFACE: Smooth gloss grey finish complements industrial and contemporary kitchen designs.
✔ ROBUST COMPOSITE BUILD: Scratch resistant and durable for long-lasting performance.
✔ 90MM CHROME BASKET WASTES: Supplied for reliable drainage and premium detail.
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5
Franke Sirius S2D651CB 1.5 Bowl Tectonite Reversible Carbon Black Kitchen Sink
FRANKE
Why we love it
Generous size for diverse usage.
Accommodates big kitchen spaces.
Remarkable 50 years guarantee.
Main Highlights
Number of Bowls: 1.5
Minimum Base Unit (mm): 600
Overall Dimensions (mm): L1000 x D500
Cut-out dimensions (mm): W984 x D484
50 Years Guarantee
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9.4
Superb
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9.4
Superb
FRANKE
Franke Sirius S2D651CB 1.5 Bowl Tectonite Reversible Carbon Black Kitchen Sink
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Show More
Why we love it
Generous size for diverse usage.
Accommodates big kitchen spaces.
Remarkable 50 years guarantee.
Main Highlights
Number of Bowls: 1.5
Minimum Base Unit (mm): 600
Overall Dimensions (mm): L1000 x D500
Cut-out dimensions (mm): W984 x D484
50 Years Guarantee
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6
Franke Sirius SID110-50CB 1.0 Bowl Tectonite Undermount Black Kitchen Sink
FRANKE
Why we love it
Exceptional heat resistance up to 300C.
Resilient to stains and scratches.
Guaranteed longevity with 50 years.
Main Highlights
Heat resistance up to 300 degrees C
Stain and scratch resistant
Minimum cabinet size (mm): 600
Sink dimensions (mm): W525x D440
50 Years Guarantee
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9.2
Superb
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9.2
Superb
FRANKE
Franke Sirius SID110-50CB 1.0 Bowl Tectonite Undermount Black Kitchen Sink
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Show More
Why we love it
Exceptional heat resistance up to 300C.
Resilient to stains and scratches.
Guaranteed longevity with 50 years.
Main Highlights
Heat resistance up to 300 degrees C
Stain and scratch resistant
Minimum cabinet size (mm): 600
Sink dimensions (mm): W525x D440
50 Years Guarantee
Show More
7
HOROW Granite Composite Kitchen Sink, Black Single Bowl 60x45 cm, Scratch & Stain Resistant, Self-Healing Surface, Integrated Push-to-Seal No Extra Plug, with Fittings & Overflow
HOROW
Why we love it
Innovative materials ensure durability.
Safe for food contact use.
Reduces noise for peaceful kitchens.
Main Highlights
Exceptional Durability: Premium black kitchen sink crafted from 80% quartz for outstanding scratch resistance; withstands impacts and heat up to 280°C.
Ultra-Quiet Experience: 12mm thickened bottom significantly reduces water flow noise, creating a peaceful kitchen environment for your family.
Hygienic & Easy to Clean: Non-porous granite composite surface resists stains, cleans effortlessly, and does not affect the taste or safety of your food.
Seamless Modern Design: Undermount installation (60x45x20cm) with no faucet hole allows for a sleek, integrated look and flexible faucet placement in your UK kitchen.
Quick & Simple Installation: Includes essential accessories—a complete drainpipe and strainer set—for a straightforward setup.
Peace of Mind: Backed by reliable customer support and a comprehensive warranty for your complete confidence with every use.
Show More
9.0
Superb
Check Price
9.0
Superb
HOROW
HOROW Granite Composite Kitchen Sink, Black Single Bowl 60x45 cm, Scratch & Stain Resistant, Self-Healing Surface, Integrated Push-to-Seal No Extra Plug, with Fittings & Overflow
Check Price
Show More
Why we love it
Innovative materials ensure durability.
Safe for food contact use.
Reduces noise for peaceful kitchens.
Main Highlights
Exceptional Durability: Premium black kitchen sink crafted from 80% quartz for outstanding scratch resistance; withstands impacts and heat up to 280°C.
Ultra-Quiet Experience: 12mm thickened bottom significantly reduces water flow noise, creating a peaceful kitchen environment for your family.
Hygienic & Easy to Clean: Non-porous granite composite surface resists stains, cleans effortlessly, and does not affect the taste or safety of your food.
Seamless Modern Design: Undermount installation (60x45x20cm) with no faucet hole allows for a sleek, integrated look and flexible faucet placement in your UK kitchen.
Quick & Simple Installation: Includes essential accessories—a complete drainpipe and strainer set—for a straightforward setup.
Peace of Mind: Backed by reliable customer support and a comprehensive warranty for your complete confidence with every use.
Show More
8
iAnomla Quartz Black Kitchen Sink, 50x45cm/20x18in, Composite Inset/Undermount Kitchen Small Sink Waste Kit,Single Bowl Commercial with Overflow, Suitable for Workstation
ianomla
Why we love it
High temperature and scratch resistant.
Easy to clean and maintain.
Flexible installation options available.
Main Highlights
【HIGH-QUALITY MATERIALS】: The kitchen sink is made of quartz stone, which is formed under high temperature and vacuum pressure, and has the characteristics of high temperature resistance, scratch resistance, and impact resistance. No harmful substances will be released during use to ensure food safety.
【COMPLETE DRAINAGE SYSTEM】: The sink is equipped with an overflow and its drain kit. The overflow can control the amount of water in the sink, prevent overflow, and keep the countertop clean. The basket strainer can remove and filter debris to prevent debris from clogging the drain.
【EASY MAINTENANCE】: The built-in sink has a smooth surface and a sloped bottom, which allows for clean rinsing without leaving dirt or water stains. Simply use a mild cleaning product to remove dirt and deposits to keep your sink looking new.
【8 INCH (20CM) DEEP BOWL】：High-capacity bowl offers more room insidefor stacking dishes,flling stockpots,and handing large baking sheets and roasters.The thickness of the bottom of the sink is 12mm, which effectively reduces the sound of running water and the sound of pots and pans colliding.
【MULTIPLE INSTALLATION METHODS】: The quartz kitchen sink is suitable for topmount or undermount installation, providing flexibility for kitchen design. External dimensions of the quartz sink 50 x 45 x 20 cm, inner dimensions 45 x 39 x 20 cm.Choose the installation method that suits your countertop.
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8.9
Excellent
Check Price
8.9
Excellent
ianomla
iAnomla Quartz Black Kitchen Sink, 50x45cm/20x18in, Composite Inset/Undermount Kitchen Small Sink Waste Kit,Single Bowl Commercial with Overflow, Suitable for Workstation
Check Price
Show More
Why we love it
High temperature and scratch resistant.
Easy to clean and maintain.
Flexible installation options available.
Main Highlights
【HIGH-QUALITY MATERIALS】: The kitchen sink is made of quartz stone, which is formed under high temperature and vacuum pressure, and has the characteristics of high temperature resistance, scratch resistance, and impact resistance. No harmful substances will be released during use to ensure food safety.
【COMPLETE DRAINAGE SYSTEM】: The sink is equipped with an overflow and its drain kit. The overflow can control the amount of water in the sink, prevent overflow, and keep the countertop clean. The basket strainer can remove and filter debris to prevent debris from clogging the drain.
【EASY MAINTENANCE】: The built-in sink has a smooth surface and a sloped bottom, which allows for clean rinsing without leaving dirt or water stains. Simply use a mild cleaning product to remove dirt and deposits to keep your sink looking new.
【8 INCH (20CM) DEEP BOWL】：High-capacity bowl offers more room insidefor stacking dishes,flling stockpots,and handing large baking sheets and roasters.The thickness of the bottom of the sink is 12mm, which effectively reduces the sound of running water and the sound of pots and pans colliding.
【MULTIPLE INSTALLATION METHODS】: The quartz kitchen sink is suitable for topmount or undermount installation, providing flexibility for kitchen design. External dimensions of the quartz sink 50 x 45 x 20 cm, inner dimensions 45 x 39 x 20 cm.Choose the installation method that suits your countertop.
Show More
9
iAnomla Quartz Black Kitchen Sink, 45x45cm/18x18in, Composite Inset/Undermount Kitchen Small Sink Waste Kit,Single Bowl Commercial with Overflow, Suitable for Workstation
ianomla
Why we love it
Durable quartz stone construction.
Efficient overflow and drain system.
Easy to clean and maintain.
Main Highlights
【HIGH-QUALITY MATERIALS】: The kitchen sink is made of quartz stone, which is formed under high temperature and vacuum pressure, and has the characteristics of high temperature resistance, scratch resistance, and impact resistance. No harmful substances will be released during use to ensure food safety.
【COMPLETE DRAINAGE SYSTEM】: The sink is equipped with an overflow and its drain kit. The overflow can control the amount of water in the sink, prevent overflow, and keep the countertop clean. The basket strainer can remove and filter debris to prevent debris from clogging the drain.
【EASY MAINTENANCE】: The built-in sink has a smooth surface and a sloped bottom, which allows for clean rinsing without leaving dirt or water stains. Simply use a mild cleaning product to remove dirt and deposits to keep your sink looking new.
【8 INCH (20CM) DEEP BOWL】：High-capacity bowl offers more room insidefor stacking dishes,flling stockpots,and handing large baking sheets and roasters.The thickness of the bottom of the sink is 12mm, which effectively reduces the sound of running water and the sound of pots and pans colliding.
【MULTIPLE INSTALLATION METHODS】: The quartz kitchen sink is suitable for topmount or undermount installation, providing flexibility for kitchen design. External dimensions of the quartz sink 45 x 45 x 20 cm, inner dimensions 40 x 39 x 20 cm.Choose the installation method that suits your countertop.
Show More
8.8
Excellent
Check Price
8.8
Excellent
ianomla
iAnomla Quartz Black Kitchen Sink, 45x45cm/18x18in, Composite Inset/Undermount Kitchen Small Sink Waste Kit,Single Bowl Commercial with Overflow, Suitable for Workstation
Check Price
Show More
Why we love it
Durable quartz stone construction.
Efficient overflow and drain system.
Easy to clean and maintain.
Main Highlights
【HIGH-QUALITY MATERIALS】: The kitchen sink is made of quartz stone, which is formed under high temperature and vacuum pressure, and has the characteristics of high temperature resistance, scratch resistance, and impact resistance. No harmful substances will be released during use to ensure food safety.
【COMPLETE DRAINAGE SYSTEM】: The sink is equipped with an overflow and its drain kit. The overflow can control the amount of water in the sink, prevent overflow, and keep the countertop clean. The basket strainer can remove and filter debris to prevent debris from clogging the drain.
【EASY MAINTENANCE】: The built-in sink has a smooth surface and a sloped bottom, which allows for clean rinsing without leaving dirt or water stains. Simply use a mild cleaning product to remove dirt and deposits to keep your sink looking new.
【8 INCH (20CM) DEEP BOWL】：High-capacity bowl offers more room insidefor stacking dishes,flling stockpots,and handing large baking sheets and roasters.The thickness of the bottom of the sink is 12mm, which effectively reduces the sound of running water and the sound of pots and pans colliding.
【MULTIPLE INSTALLATION METHODS】: The quartz kitchen sink is suitable for topmount or undermount installation, providing flexibility for kitchen design. External dimensions of the quartz sink 45 x 45 x 20 cm, inner dimensions 40 x 39 x 20 cm.Choose the installation method that suits your countertop.
Show More
10
Astini Dante 500 1.0 Bowl Granite Black Undermount Kitchen Sink & Waste
Astini
Why we love it
Sleek contemporary design.
Elegant matt finish.
Durable granite material.
Main Highlights
Style - Contemporary
Colour - Black
Finish - Matt
Material - Granite
Installation - Undermount
Show More
8.7
Excellent
Check Price
8.7
Excellent
Astini
Astini Dante 500 1.0 Bowl Granite Black Undermount Kitchen Sink & Waste
Check Price
Show More
Why we love it
Sleek contemporary design.
Elegant matt finish.
Durable granite material.
Main Highlights
Style - Contemporary
Colour - Black
Finish - Matt
Material - Granite
Installation - Undermount
Show More
![BLANCO SUBLINE 320-U | SILGRANIT Sink in White | Installation Type: undermount Installation | for 40 cm Wide Base cabinets | One Cut-Out and only one Installation | [35x46x20.2 cm]](https://m.media-amazon.com/images/I/31D7G+zDiwL._SL160_.jpg)
