Best Under Carpet Insulation of 2025

Last updated on 15/09/2025

Advertising disclosure

Trade Store Vapour Barrier Membrane - Insulating Aluminium Foil Barrier - Use for Flooring and Roof Insulation - Insulation for Walls - CE Approved (1m x 50m (50 sq/m))

Why we love it

Lowers your heating bills.
Versatile and multi-purposed.
Superior quality and coverage.

Main Highlights

LOWER YOUR HEATING BILLS - Vapour barrier membrane - Say goodbye to unwanted moisture and hello to a more comfortable home with our high-quality vapour barrier. It's perfect for use on floors, walls, and roofs, providing an effective insulating layer that reduces heat loss and lowers your heating costs. Increases energy efficiency by reflecting heat back into the build.
MULTI-PURPOSE - Versatility at its best! Our vapour barrier membrane can be used in various areas of your home to ensure optimum ambient conditions. Whether it's under plasterboards or as part of a roofing system, this product will not disappoint. Installed on warm side of insulation, it protects and insulates from interstitial condensation.
GREAT VALUE LARGE COVERAGE - Size 75 sq/m - With 75 square meters of coverage, Impermeable air barrier to increase airtightness this vapour barrier membrane has got you covered. So go ahead and insulate your walls, attic, ceiling, or floor, with confidence knowing that Trade Store manufactures premium products.
A BRAND TO TRUST: We recognise the needs of our valued customers and the significance of reliability. Our seasoned warehouse team is dedicated to ensuring your requirements are met at every stage. Trust Trade Store to eliminate your worries and concerns.
PROUDLY A BRITISH BRAND - As a proud British company, we take great pride in delivering top-quality products and services to our customers. Our vapour barrier is no exception, made from premium materials and reinforcement scrim provides sufficient strength for wall and ceiling applications

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

Carpet Underlay 12mm thick Foam - 15sq.metre Roll

Why we love it

High Sound Proofing ensures quietness.
Insulation heightened for efficiency.
Softness enhances underfoot comfort.

Main Highlights

15m2 Roll (1.37m x 11m)
High Sound Proofing
High Insulation
Great softness underfoot

BLOSTM Foil Insulation Roll 1m x 25m - Radiator Reflector Panels for Floor, Ceiling, Roof, Wall Insulation - Aluminium Bubble Radiator Reflective Foil Roll - Heat & Vapour Barrier Saves Energy

Why we love it

Reflects 97% of heat efficiently.
Easy installation saves time.
Durable, moisture-resistant for longevity.

Main Highlights

ENERGY EFFICIENT - This foil bubble wrap insulation reflects 97% of the heat back into your room. There is less energy needed to heat your home with radiator reflector panels; so you can turn the temperature down. Helping reduce your carbon footprint with the BLOSTM Radiator Reflective Foil.
EASY TO INSTALL - Quickly install our lightweight radiator reflector foil, tailored to fit any space with easy cutting. It is discreet and does not ruin the appearance of your home. Minimal maintenance, just occasional dusting, saves you money. Ideal for various applications like water heaters, windows, RVs, greenhouses, attics, garages, floor insulation, roof insulation for buildings, and even pet hutch insulation! (PLEASE NOTE: Adhesive pads NOT included with this insulation roll).
HIGH-QUALITY PRODUCT - Our bubble foil insulation, featuring laminated aluminium with anti-oxidation coating, is versatile for year-round use on windows or as a radiator heat reflector to cut energy costs. Resilient against moisture, tears, and punctures, it stays stable in high humidity. Trust its enduring performance; water and mould resistance make it suitable for damp areas.
SAFE TO USE - Our thermal wrap insulation roll meets top standards, ensuring safe winter warmth. Providing a 3-in-1 solution - thermal insulation, radiant heat barrier, and vapour barrier. Versatile for indoor or outdoor use, this heat insulation shield effectively weatherproofs various spaces, including barns, concrete floors, and wine cellars.
SAVES YOU MONEY - By using the radiator foil reflector roll to reflect the heat back into the room your home stays warm for longer allowing you to reduce your heating bills. It is great energy saving value for money especially with all the money you can save from wasted heat. (Dimensions: 1m x 25m. Thickness: 2.4mm)

Carpet Underlay Soft 10mm Thick 15m² Roll | Cushioned PU Foam | Noise Reducing Thermal Insulation Carpet Underlay

Why we love it

Superior cushioning for ultimate comfort.
Minimizes noise for peaceful living.
Eco-friendly and easy to handle.

Main Highlights

🛏 [Plush 10mm Thickness]: Enjoy superior cushioning underfoot – ideal for bedrooms, lounges, and low-traffic areas where comfort is king.
🔇 [Sound Reduction]: Minimize noise with 39dB sound insulation – perfect for apartments, upstairs rooms, or busy households.
🌱 [Eco-Friendly & Lightweight]: Made from recycled PU foam – good for the planet and easy to handle during installation.
📐 [Easy to Fit]: Lightweight and flexible, it cuts and fits effortlessly under any carpet. Roll Size: 15.07m² per roll (1.37m x 11m).
📌 [Luxury & Practicality]: This underlay offers a perfect balance between luxury and practicality. It’s designed to extend the life of your carpet, add extra warmth, comfort and reduce noise – all while being a cost-effective upgrade for any flooring project.
🧊 [Thermal Insulation]: With an impressive 2.96 tog rating, this underlay helps retain warmth, keeping your chosen room warm and cosy throughout whilst lowering energy bills.

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

3% Off

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.

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.

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.

8.8

Excellent

We scanned 797 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 Trade Store, Flooring Online UK, SIXNEA, Royale, BLOSTM, Underfoot, Advanced Acoustics, IMPERIAL STUDIOS, 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 3986 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 Trade Store Vapour Barrier Membrane - Insulating Aluminium Foil Barrier - Use for Flooring and Roof Insulation - Insulation for Walls - CE Approved (1m x 50m (50 sq/m)). We love many things about this product by Trade Store. What sets it apart from the competition is Lowers your heating bills, Versatile and multi-purposed, Superior quality and coverage.
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 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 Colorat IMPERIAL STUDIOS with a 3% 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.

Best Under Carpet Insulation of 2025

Related Deals You Might Like for Under Carpet Insulation

FloorPro 8mm Carpet Underlay - DIY Roll 1m x 5m - PU Foam With Sound And Insulation - Underfoot Comfort Cushion Padding Underlayment - Ideal For Stairs

BLOSTM Foil Insulation Roll 5m x 60cm - Radiator Reflector Panels for Floor, Ceiling, Roof, Wall Insulation - 3-in-1 Reflective Foil Insulation Roll - Heat & Vapour Barrier Saves Energy

Carpet Underlay PU Foam 8mm 10mm 12mm Multiple (8mm Thick - 5m2)

MAIYADUO Anti Slip Rug Underlay 100x150 Cm Multipurpose Non Slip Mat Under Rug Gripper Anti Slip Mat Antislippery Mat Underlay Liner for Smooth Hard Wooden Floors

WDC ONLINE eXtreme® Graphite Budget Carpet Underlay 7mm Thick PE Foam 5sqm Part Roll UNDERLAY!

FLASLD Aluminized Heat Shield Mat Thermal Barrier Adhesive Backed Heat Blanket 12'' X 24'', Fiberglass Insulation Reflective Material High Temp Protection

IMPERIAL STUDIOS 14.4m2 Underlay for Floor - 7mm Thick PE Foam Padding for Wooden & Carpeted Flooring - Thermal Insulation & Sound Dampening Gripper Underlayment - Graphite Color

IMPERIAL STUDIOS PU Foam 8mm Thick Carpet Underlay Roll 5m² - Soft Foam Thermal Insulated Flooring Underlay - Heat Resistant Sound Reducing Floor Padding for Carpet, Laminate & Vinyl

10M x 32CM Self Adhesive Reflective Aluminium Foam Insulation 7mm Thick, Aluminum Bubble Heat Thermal Reflector Panels, Foil Insulation Roll for Floors, Roofs, Garage Doors and Camper Vans

YOUNTHYE Self Adhesive Reflective Aluminium Foam Insulation 5mm Thick, 24cm x 10m Radiator Reflector Panels, Foil Insulation Roll for Floors, Roofs, Garage Doors and Camper Vans

We scanned 797 products

We concluded that: