product details

1200 x 600 x 15mm

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key benefits

soundproofing:   Quietfloor PLUS Soundproof Underlay

QuietFloor Plus held between fingers with product and company name
QuietFloor Plus acoustic underlay being installed onto floor corner view of two sheets of QuietFloor Plus

QuietFloor Plus noise reducing replacement acoustic underlay for carpets


QuietFloor Plus is a superb and improved soundproof underlay designed to improve both impact and airborne noise nuisance through floors.  Suitable for application beneath carpets, laminate flooring and engineered wood flooring.


"I want to express my sincere gratitude for the improvement your product has made for my home. Based on this, I enthusiastically recommend QuietFloor PLUS as a cost effective soundproofing solution." Gabriel Sobanjo




This is the quickest to install and most effective acoustic underlay on the market for reducing noise through floors. Quietfloor PLUS is also remarkably cost-effective. Using this product increases airborne sound insulation and reduces impact noise transmission so much that there is no need for the installation of false floors; this not only increases minimum ceiling height but it also reduces labour and materials costs considerably. QuietFloor PLUS is the easiest way to introduce a reduction in noise levels with the minimum of disruption and replaces normal carpet underlay. Whilst it is a quick fix solution and does reduce most domestic noise dramatically, the noise reduction can be enhanced by using our Acoustic Quilt or AMW in the cavity space as well. This is a preferred and advised solution.

The laminated composition provides maximum performance for minimum thickness and combines excellent sound insulation with all the qualities of a good carpet underlay. It is quick and easy to install and is easily cut and shaped.

This product comprises a recycled layer of sound absorbing chip foam bonded to a top and bottom layer of mineral loaded soundproofing mat. The base layer of barrier mat seals and damps the sound coming through the floor, the isolated top layer of barrier mat reduces the sound penetration both ways and the sound absorbing chip foam core dramatically absorbs and reduces impact noise transfer.

In addition, Quietfloor PLUS is made from an acoustic foam, which does not harden or crumble over time, unlike some other foams that are normally used in these applications. Due to the recycled nature of the sound absorbing foam, the colour, when delivered, is unlikely to be the same as that shown in our photographs.

QuietFloor PLUS can also be bonded to concrete floors to meet the new Approved Document E Building Regulations for impact noise and is ideally glued down using our special spray adhesive.

We also advise applying it to the steps and risers of communal stairs to comply with the latest Document E requirements for noise control.

If using Quietfloor PLUS as an acoustic underlay beneath a carpet, perimeter packing strips should be installed around the edges of the floor next to the wall. These are 1000 x 30 x 9mm thick strips and are packing strips for the carpet grippers to ensure they are at the correct height for fitting the carpet. Due to the flexibility of the product, sheet sizes may vary by up to 5mm so extra trimming may be required.

Carpet tiles can also be fitted on top of the QuietFloor but if these are required, our MDF6 tongue and groove 6mm thick panels should be fitted on top of the QuietFloor first.  The carpet tiles can then be fitted as normal on top.  For more information on MDF6 please click HERE.

Although every effort is made to ensure this product leaves us in perfect condition, sometimes slightly inferior panels can be packed in error. Should any of these be received, they can usually be used for cutting in around the edges of the floor leaving the damaged or sub-standard section as waste.

Check out our new simple pictorial installation Guide here

Acoustic Performance

Sound Service (Oxford) Acoustic Performance
Quietfloor PLUS
Building regs minimum requirement is 43dB
Up to 51 dB
Building regs maximum requirement is 64dB
Down to 39 dB