10 Best Under Carpet Insulation in The UK

Last updated on 25/08/2025

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Best Choice

9.8

Exceptional

YBS Insulation

YBS Insulation SuperQuilt Trade 1.5m x 10m

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Why We Love It

Dual purpose 2-in-1 functionality.
High thermal resistance offered.
Equivalent to 125mm wool.

Main Highlights

Dual purpose, 2-in-1 insulating and vapour control membrane
High thermal resistance of up to 2.84 m2 K/W, equivalent to 125mm mineral wool.

10mm Thick - Wool Heat Insulation Felt Carpet Underlay - 42oz

Why We Love It

Ultra-warm and comforting underfoot experience.
Remarkable heat insulation properties.
Environmentally friendly yet luxurious.

Main Highlights

10mm Thick - 42oz Wool Underlay
15sq.metres Per Roll
High Heat Insulation
Warm Underfoot
Eco Friendly

12mm Thick PU Carpet Underlay - 15 Square Meter Rolls - UK Manufactured Quality Feel - Hard Wearing

Why We Love It

Enhances comfort with thickness.
Durable and long lasting.
UK manufactured quality.

Main Highlights

12mm Thick PU Carpet Underlay - 15 Square Meter Rolls - UK Manufactured Quality Feel - Hard Wearing
product type: HOME
Brand: SIXNEA

Advanced Acoustics Premium Mass Loaded Vinyl Soundproofing Mat - 1.25m x 3m - 5kg/sqm - 2mm Thin

Why We Love It

Incredible noise reduction properties.
Can be easily installed.
Enhances acoustic board performance.

Main Highlights

1.25m by 3m by 2mm thin MLV Soundproofing Mat. One roll covers an area of 3.75sqm.
Suitable for use in stud walls, timber joist floors and timber joist ceilings.
Highly effective noise barrier Effective at reducing airborne noise in timber walls, floors & ceilings
Sustainable: Manufactured from pre and post industrial waste sources. 100% recyclable at end of life.
Glue the Soundproofing Mats directly to an exisiting stud before adding more acoustic plasterboard. For best results, it should be sandwiched between two layers of high density Acoustic Plasterboard

IMPERIAL STUDIOS Anti-Skid Carpet Underlay - 15m2 PU Roll, 7mm Thick - Stain Resistant Carpet Padding for Bedrooms & Living Areas - Sound Deadening & Insulated Gripper for Rugs & Carpets- Yellow Color

Why We Love It

Impeccable craftsmanship and durable materials.
Luxurious feel and sound insulation.
Simple installation and user-friendly.

Main Highlights

✅QUALITY UNDERLAY: The PU under the carpet boasts impeccable craftsmanship, durable materials, and a luxurious feel, guaranteeing excellent quality and a lasting addition to any space. Excellent heat and sound insulation properties.
✅PERFECT UNDERLAY: This 7mm thick premium yellow PU carpet underlay perfect for use, in all areas of the home, including bedrooms, living rooms, Dining Rooms and Hallways. Tog Rating 2.14 and DB Rating 34DB.
✅EASY TO USE: With its user-friendly design and simple installation process, the PU carpet ensures ease of use, making it a hassle-free and convenient choice for any setting. Feel great under foot and so easy to lay.
✅EASY TO USE: With its user-friendly design and simple installation process, the PU carpet ensures ease of use, making it a hassle-free and convenient choice for any setting. Feel great under foot and so easy to lay.
✅SIZE: 7mm Thick Acoustic Pu Underlay carpet vinyl flooring underlayment padding Roll is 1092CM X 137CM X 07MM = 15 SQM 7mm Density 75 kg/cubic meter Non-woven backing both sides for extra durability and life span.

IMPERIAL STUDIOS Carpet Underlay - 5m2 PU Memory Foam, 12mm Thick - Anti-Skid Gripper for Carpets - Soft, Cushioned Underlayments - Heat & Sound Insulation - Blue Color

Why We Love It

Quality craftsmanship ensures longevity.
Adds comfort to every step.
Effortless installation process.

Main Highlights

✅QUALITY UNDERLAY: The PU under the carpet boasts impeccable craftsmanship, durable materials, and a luxurious feel, guaranteeing excellent quality and a lasting addition to any space. Excellent heat and sound insulation properties.
✅PERFECT UNDERLAY: This 12mm thick premium blue PU carpet underlay perfect for use, in all areas of the home, including bedrooms, living rooms, Dining Rooms and Hallways. Tog Rating 2.14 and DB Rating 34DB.
✅FEEL COMFORTABLE: The soft, luxurious feel Premium Polyurethane PU foam carpet feel soft underfoot makes every step a delight, creating a cozy and inviting ambiance, ensuring you feel comfortable and at home. It’s very comfortable to walk on and easy to lay.
✅EASY TO USE: With its user-friendly design and simple installation process, the PU carpet ensures ease of use, making it a hassle-free and convenient choice for any setting. Feel great under foot and so easy to lay.
✅SIZE: 12mm Thick Acoustic Pu Underlay carpet vinyl flooring underlayment padding Roll is 364CM X 137CM = 5 SQM 12mm Density 90 kg/cubic meter Non-woven backing both sides for extra durability and life span.

9mm Thick High Density PU Foam Carpet PowerWalk Underlay Luxurious Comfort Soft, Durable & Stain-Resistant Great Heat & Sound Insulation Eco-Friendly Ideal for Bedrooms & Living Rooms (5㎡)

Why We Love It

High-density, quality construction.
Excellent heat, sound insulation.
Soft, luxurious underfoot feel.

Main Highlights

✅HIGH DENSITY UNDERLAY: The High density PU foam under the carpet boasts impeccable craftsmanship, durable materials, and a luxurious feel, guaranteeing excellent quality and a lasting addition to any space. Excellent heat and sound insulation properties.
✅PERFECT UNDERLAY: This 9mm thick premium blue PU carpet underlay perfect for use, in all areas of the home, including bedrooms, living rooms, Dining Rooms and Hallways. Tog Rating 2.30 and DB Rating 38DB.
✅FEEL COMFORTABLE: The soft, luxurious feel Premium Polyurethane HD PU foam carpet feel soft underfoot makes every step a delight, creating a cozy and inviting ambiance, ensuring you feel comfortable and at home. It’s very comfortable to walk on and easy to lay.
✅EASY TO USE: With its user-friendly design and simple installation process, the PU carpet ensures ease of use, making it a hassle-free and convenient choice for any setting. Feel great under foot and so easy to lay.
✅SIZE: 9mm high density PU foam underlay Thick Acoustic Pu Underlay carpet vinyl flooring underlayment padding Roll is 364CM X 137CM = 5 SQM 9mm Density 130 kg/cubic meter Non-woven backing both sides for extra durability and life span.

15mm | 12mm | 10mm | 7mm Camper Van Insulation Thermal Acoustic Floor Roof Sound Walls Proof Foil Self Adhesive Under Floor Wood Laminate Heat Underlay (7mm x 5m x 1m)

Why We Love It

Lightweight yet provides excellent insulation.
Effortless cut, fit and stick.
Resistant to pressure, water, flames.

Main Highlights

Lightweight material
Provides excellent acoustic van insulation and soundproofing
Provides excellent thermal campervan insulation
Easy to cut and fit
Pressure and water resistant

IMPERIAL STUDIOS Premium 12mm PU Carpet Underlay Roll, 15m², UK Made, High-Density Foam for Superior Comfort, 1.37m x 11m

Why We Love It

Superior cushioning and comfort.
Generous coverage for minimal waste.
Noise reduction and heat retention.

Main Highlights

PREMIUM THICKNESS: 12mm thick PU foam underlay provides superior cushioning and comfort, perfect for enhancing the feel of any carpeted room
GENEROUS COVERAGE: Each roll measures 1.37m x 11m, covering 15 square metres - ideal for medium-sized rooms with minimal waste
UK MANUFACTURING: Crafted in Britain using high-density rebonded PU foam, ensuring consistent quality and lasting performance
INSULATION BENEFITS: Reduces noise by up to 39dB and offers excellent thermal properties with a 2.96 tog rating for better heat retention
VERSATILE APPLICATION: Suitable for all carpet types including twist, loop, and saxony, making it perfect for bedrooms, lounges and home offices

10mm Thick PU Foam Carpet Underlay Luxurious Comfort Soft, Durable & Stain-Resistant Great Heat & Sound Insulation Eco-Friendly Ideal for Bedrooms & Living Rooms (Roll 5 Square Meter)

Why We Love It

Quality craftsmanship ensures durability.
Perfect for any room.
Soft, comfortable underfoot feel.

Main Highlights

✅QUALITY UNDERLAY: The PU under the carpet boasts impeccable craftsmanship, durable materials, and a luxurious feel, guaranteeing excellent quality and a lasting addition to any space. Excellent heat and sound insulation properties.
✅PERFECT UNDERLAY: This 10mm thick premium green PU carpet underlay perfect for use, in all areas of the home, including bedrooms, living rooms, Dining Rooms and Hallways. Tog Rating 2.14 and DB Rating 34DB.
✅FEEL COMFORTABLE: The soft, luxurious feel Premium Polyurethane PU foam carpet feel soft underfoot makes every step a delight, creating a cozy and inviting ambiance, ensuring you feel comfortable and at home. It’s very comfortable to walk on and easy to lay.
✅EASY TO USE: With its user-friendly design and simple installation process, the PU carpet ensures ease of use, making it a hassle-free and convenient choice for any setting. Feel great under foot and so easy to lay.
✅SIZE: 10mm Thick Acoustic Pu Underlay carpet vinyl flooring underlayment padding Roll is 364CM X 137CM = 5 SQM 10mm Density 85 kg/cubic meter Non-woven backing both sides for extra durability and life span.

8.8

Excellent

We scanned 601 products

We reviewed these offers relevant to the Under Carpet Insulation within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like YBS Insulation, Flooring Online UK, SIXNEA, Advanced Acoustics, IMPERIAL STUDIOS, Shield Autocare, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Under Carpet Insulation in the market, we considered we took a deep dive into 3006 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is YBS Insulation SuperQuilt Trade 1.5m x 10m. We love many things about this product by YBS Insulation. What sets it apart from the competition is Dual purpose 2-in-1 functionality, High thermal resistance offered, Equivalent to 125mm wool.
The best value product for most shoppers and where user satisfaction is continuously the highest is 10mm Thick - Wool Heat Insulation Felt Carpet Underlay - 42oz by Flooring Online UK based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Under Carpet Insulation and the best cost-to-value ratio is 10mm Thick PU Foam Carpet Underlay Luxurious Comfort Soft, Durable & Stain-Resistant Great Heat & Sound Insulation Eco-Friendly Ideal for Bedrooms & Living Rooms (Roll 5 Square Meter)at IMPERIAL STUDIOS with a % discount.
Our list of the best Under Carpet Insulation is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Under Carpet Insulation in The UK

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We scanned 601 products

We concluded that: