10 Best Carpet Underlay Reviews - The Top Rated Models In 2020

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Carpet underlay adds an extra layer of cushioning which makes the carpet more comfortable to step on, provides extra insulation from cold, absorbs noise and lengthens the life your carpet. it’s an integral part of your flooring.

So how do you choose the right one for your floor? From rubber to felt, crumb, and polyurethane, you’ll find our review of the best carpet underlay quite useful.

Best Carpet Underlays Reviews

Best Carpet Underlays Comparison Chart

The 10 Best Carpet Underlays On The Market Reviewed

The best carpet underlay is the Red Crumb Rubber Carpet Underlay By Flooring Online UK. We gave it a 5/5 star rating.

The first thing that makes the Tredaire Colours Carpet underlay the most modern and top-notch in the market, is the fact that it can be used with all types of floor surfaces. It is 11.4mm thick and is made of the softest sponge rubber material to support and bring the comfort you deserve when you are walking on your carpet floor.

This crumb rubber underlay increases the carpet’s durability by 40% letting you save the cost of replacing the carpet every now and then. It can ensure the underfloor feels soft and warm which is the best carpet underlay to use in flats and hallways. The size of a full roll of this crumb rubber underlay is 8m by 1.37m for 10.96sq.meters and it weighs 47kg.

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Red Crumb Rubber Carpet Underlay By Flooring Online UK
  • It can be used with all types of floors
  • 40% increase on the carpet life
  • Provides a soft and warm feeling underfloor
  • Great noise reduction for very noisy areas
  • Prevents pile flattening
  • It’s a bit expensive

Second best carpet underlay is the 9mm Thick Carpet Underlay Rolls By Cloud 9. We gave it 5/5 stars.

Cloud 9 Cirrus carpet underlay is made of high quality polyurethane material that has thermal settings to provide the warmth underfoot. The thermal insulation used is 2.6 tog rating and is 9mm thick. The materials used are eco-friendly for they contain 39dB sound impact insulation and are non-toxic.

This is the best carpet underlay to use in your leisure indoor activities like partying for it provides all the luxury needed on the underfoot and reduces the airborne noise levels in the room. The full roll of the thermal carpet underlay has a density of 90kg per m3 and it’s easy to fix by yourself.

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9mm Thick Carpet Underlay Rolls By Cloud 9
  • Environment-friendly
  • Nontoxic
  • Easily fits
  • Great noise reduction in the bedroom or any room
  • It is another one that has been said to be heavy priced

Third place goes to the Luxury Carpet Underlay By Wilsons Underlays. We gave it a 5/5 star rating.

The Wilson products are woolen to provide maximum heat insulation on the floor. The manufacturer used this woolen technique purposefully for the intention of heat retention. Wool, as we all know is best for heat preservation and that’s why it is used to make things like blankets for warmth. 

This underlay for carpets is perfect for your home for it does not compress no matter the weight exerted. Therefore you have to worry less about furniture dents when you have this woolen underlay. You can use these products on different floor types.

The carpet underlay brings softness feeling when you step foot on a carpet. This underlay for carpet reduces sound by approximately 44db and has a tog rating of 3.9.

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Luxury Wool Carpet Underlay By Wilsons Underlays
  • Goes well with best carpets on the market
  • Easy to fit
  • Great noise reduction
  • Can offer best underfloor heating service for stairs
  • Absorbs moisture

Fourth place goes to the Heatflow Carpet Underlay 6.1mm By Duralay. We gave it a 4.5/5 star rating.

The Duralay Heatflow underlay for carpet is spongy in nature and suitable for the stretch to fit installation of carpets. The roll measures 1.33m by 11.33m with a surface area of 15.07sqm.

You can use it on different floors and you don’t need to worry about dents on your furniture. It does not compress, no matter the weight exerted on it, and that is why it is one of the most sought-after products in the market right now. If you want maximum heat insulation on your floor, these are the right products to go for.

Heatflow Carpet Underlay 6.1mm By Duralay
  • Underfloor remains warm
  • Best underfloor heating properties
  • Tears easily

Fifth place goes to the Luxury 12mm Carpet Underlay By T & A Upholstery Supplies. We gave it a 4.5/5 star rating.

Luxury PU Underlay is made of polyurethane foam insulation to provide maximum thermal heat retention underfoot. It is 12mm thick and eco-friendly with Grade A. Although there are chemicals in the material used, the underlay is non-toxic.

It is easy to fit this underlay and the roll has a 1.37m width as well as 15 square meter surface area. With a tog rating of 2.71, this is an ideal prodcut to go for if you really want to experience the most satisfactory result.

90kg per m3

2.71 Tog rating

 Free Samples Available - Just Request One Via Messages

Luxury 12mm Carpet Underlay By T & A Upholstery Supplies
  • Non-toxic
  • Easy to install
  • Environmentally friendly
  • Best underfloor heating for laminate flooring
  • Easily rips

Sixth place goes to the 10mm PU Carpet Underlay By T & A Upholstery Supplies. We gave it a 4.5/5 star rating.

Made with a thickness of 10mm, the high-quality PU underlay fits perfectly under the carpet. It is easy to install and is non-toxic. The carpet underlay is made of great heat insulators hence the warm feeling as you step. The width is 1.37m and a density of 90kg per m3, 2.71 tog rating.


10mm High Quality PU Underlay

A great underfloor heating item from our huge range of carpets & underlay items which can be delivered next working day to most of the UK. Our shop imports directly from the manufacturer companies passing the savings directly on to you, meaning you get an online price lower than high street trade prices. All of our prices include VAT with a VAT receipt being supplied by e-mail.

10mm PU Carpet Underlay By T & A Upholstery Supplies

Product Features

1.37m Wide x Appropriate Length to give you the stated size in m²

10mm vinyl Thickness

Grade A

Environmentally Friendly

Non Toxic


Thickness : 10mm

90kg per m3

2.71 Tog rating

Please note that a full roll is 15m in area so if your chosen area is greater than 15m then there will be more than 1 package

Free Samples Available - Just Request One Via Messages

  • Preserve heat
  • Easily fits
  • Non-toxic
  • Tears easily

Seventh place goes to the Carpet Underlay By Flooring Online UK. We gave it a 4.5/5 star rating.

The felt carpet has a thickness of 10mm and 42oz structure. The full roll fits 15sq.meters. The material used in the construction enables the carpet underlay to have high heat retention ability to bring the warmth on the feet when stepping on it.


10mm Thick Underlay  Why should i buy this Underlay instead of a PU Foam Underlay? A woolen underlay gives;- Better Insulation than PU Foam; -Create less furniture indentation marks - it is doesn't get flat of wear off on high traffic areas of carpet,- It feel opposite of hard underfoot - don't forget most carpets are made from it!- It is a natural fibre which is won't disintegrate and will last a lifetime!Its suitable for many floors,concrete,wood,asphalt and many more

Wool Heat Insulation Carpet Underlay By Flooring Online UK


Thickness: 10mm ThickRoll Size: 15sq.metres

One of the best tog ratings: 3.4 tog rating approx.


Sound Reduction: 33db approx.

Weight: 22kilos per roll approx.

Features & details

10mm Thick - 42oz Underlay

15sq.metres Per Roll

Free Next Working Day Delivery if ordered before 3pm

Product information

Part Number    AMZ-Underlay-552

Package Dimensions   140 x 40 x 40 cm

  • High heat insulation
  • Comfortable on stepping
  • Suitable for many floor types
  • Non-moisture resistant

Eighth place goes to the 10mm Foam Carpet Underlay By Platinum Underlay. We gave it 4.5/5 stars.

The material used in making the platinum carpet underlay is a composition of foam and a plastic laminate. The materials are known for their complete water resistance which is perfect to use the underlay on damp surfaces, but it is not recommended for stairs.

The foam underlay has a 2.20 tog rating and 32db sound resistance. It is 10mm thick and 82kg/m2 dense. 10mm Foam Carpet Underlay By Platinum Underlay

10mm Foam Carpet Underlay By Platinum Underlay
  • Good felt underlay as it forms a spongy feeling on stepping
  • Doesn’t absorb moisture
  • The foam can be recycled after some time
  • Easy to lay with good heating properties
  • Compresses on impact
  • Not the best carpet underlay for stairs because the laminate splits on the joints
  • Low level of noise reduction

Ninth place goes to the Luxury Foam Carpet Underlay By Snugstep. We gave it a 4/5 star rating.

SnugStep® Underlay is made of 10mm thick PU foam insulation material. This is the popular feature that provides warmth and can reduce the distance that noise will reach. People love this underlay for carpets as it suits any carpet type in your house.

This insulating underlay is bouncy in nature thanks to the special feature, spring Back Foam high Quality, to provide comfort on stepping. The dimensions per full roll are 137cm by 37cm by 37cm and it weighs 12.9kg and is 10mm thick.

Luxury Foam Carpet Underlay By Snugstep
  • Best sound reducing underlay
  • Design suitable for all carpets
  • Many customers recommend its luxurious appearance
  • Not very thick

Tenth place goes to the 8mm Felt Carpet Underlay By Multi-Rich. We gave it 4/5 stars.

The Multi-Rich Felt Carpet Underlay is made of almost 100% woolen hence the name. Wool acts as a great heat insulator and has good soundproofing properties.

This carpet underlay is 10mm thick and feels soft and bouncy underfoot. The insulated underlay fits well on the stairs for it doesn’t move on the joints.

8mm Wool Felt Carpet Underlay By Multi-Rich
  • Best carpet underlay for carpet and stairs
  • Excellent sound dampening underlay
  • This budget friendly option gives best value for the money you pay
  • Good water absorbent

Carpet Underlays Buying Guide

Carpets accumulate both dust and moisture fast while on the floor. And if left unclean, it could turn into a health hazard. For this reason, every home needs a cordless vacuum, carpet cleaner, and handheld steam cleaner to get rid of the accumulated dust and debris.

But a carpet underlay can protect your carpet for an extended period. Although most home projects demand using a hammer drill and safety boots, a carpet underlay is straightforward in its installation. We will guide you through choosing the best carpet overlay.

Benefits of having a carpet underlay

We have seen that having a carpet underway lengthens the life of your best carpet to make it durable and save the cost of replacing your carpet. The underlay for carpets is placed directly on the floor and carefully tacked in with your carpet to provide protection for the carpet from moisture and also to complement it.

Living in areas where noise is an issue, having carpet underlay in bedrooms helps reduce the distance the noise reaches. Aside from this, the carpet underlay offers a soft and comfortable feeling as you step.

Factors to consider when buying a carpet underlay

The first thing we recommend to put in mind when buying this carpet underlay is comfort. Getting the right carpet underlay for your floor and sits well with your carpet provides the comfort when you walk.  Another thing to consider is the floor type of your house.

There are different carpet underlay types to select depending on the kind of floor you have. Examples are the carpet tile underlays, underlay for laminate flooring etc.

The thicker the carpet underlay, the better for soundproofing. Having the right underlay with the right amount of thickness can help a great deal in curbing noise pollution in the neighboring houses to a minimum.

carpet underlay buying guide

For warmth, our advice is to search the material the carpet underlay is made of. Felt carpets tend to retain a great amount of heat, followed by the insulated carpets.

Carpet Underlays Buying FAQs

Q: Is the carpet underlay durable?

A: Yes and no. The material used in making the underlay determines the durability of the carpet underlay. The felt carpet underlays tend to last longer than the foam counterparts and are good for your carpet and underlay surface.

Q: Are all the underlay for carpets moisture resistant?

A: Not all of them but some. The materials used in making theses underlays are different and hence have different water absorption capabilities. The felt carpets are the worst to use in damp for they absorb water while the plastic PU foam ones have moisture resisting properties.

About the Author Harry Thompson

Hi, I'm the founding guy of Product Spy. Highly experienced in home and garden appliances through years of online research. I want to help everyone in the UK by streamlining their research when buying a new product. I will be putting the hours in researching to find the best products so you don't have to.