Wall Soundproofing Prices

No More Disruption From Noisy Neighbours or Roads

Prices For Several Options

Updated Wall Soundproofing Prices For 2021

Whether you’re fed up with traffic noise or unwanted disturbances from your neighbours, or even another occupant of your home, we have a soundproofing solution for you.

Wall soundproofing is a surefire way to get the peace and quiet you deserve in your own home.

On this page, we’ll look at:

  • Cheaper space-saving ways to soundproof any wall.
  • A more robust system that’s guaranteed to keep the noise out but takes up more space.
  • Other options such as floor and ceiling soundproofing and double glazing etc.

We Asked 8 Specialist Firms How Much Wall Soundproofing Costs

Discover the average cost and get your custom quote online

Pro Tip:

If you’re trying to soundproof an external-facing wall, perhaps from road-noise, then you should know that 95% of the noise comes through the windows and not the walls.

Single pane glass is very thin, even sealed double glazing isn’t very thick and both are much thinner and less dense than a typical wall comprised of two bricked walls and a cavity.

The best way to block noise from outside is to install a secondary glazed window independent of and sitting just in front of the existing window.

There’s little point in soundproofing an external wall if 95% of the sound is coming through the glass.

The good news is that secondary glazing costs less than double glazing and wall soundproofing, so we suggest you start by getting a price for secondary glazing.

We also recommend filling the wall cavity with insulation as a void between the inner and outer walls acts as an echo chamber and can amplify unwanted sounds. The good news is that cavity wall insulation is reasonably priced. The same goes for loft insulation, as noises can flank around a wall and enter the home through a poorly insulated loft.

Our Price Guide

In March 2021, we took photos and measurements of our walls and sent them to 8 soundproofing specialists based in the UK.

We wanted to know how much wall soundproofing costs and what options were available to us.

Below you’ll find a price guide on a “per square metre” basis, this was created entirely from the prices given to us by the 8 soundproofing firms.

Here are the three options:

  1. Install 30mm acoustic rubber/foam backed soundproofing plasterboard to our existing wall and plaster skim over the surface, ready for us to paint/wallpaper later. This is the slimline budget option and is great for blocking mild noises from outside; it’s also okay at blocking vibrations from a neighbour, such as noises from a staircase or kitchen.
  2. As above but with an additional layer of 5mm flexible, dense rubber to absorb vibrations and block airborne sounds. This system is still considered slimline and even with the plaster skim finish, the space loss will be no more than 42mm.
  3. Install a clip system so a new plasterboard wall can be fitted in front of the existing wall; the void between the two walls can be filled with acoustic insulation, such as Rockwool. This system costs more, and you’ll lose more space, but as the new plasterboard is only clipped to the old wall, most of the vibrations and knocking sounds will be blocked. This setup is the preferred option for soundproofing a wall you share with a neighbour.
Acoustic foam-backed plasterboard

This product is made from 15mm high-density plasterboard, 3mm flexible but dense rubber, 9mm of foam and another 3mm of rubber. At 30mm thick this slimline, space-saving board still blocks both airborne noises and vibrations. It can be fixed directly to an internal wall or used as part of a built-up system that incorporates other soundproofing products. (Photo from Soundproofing Store)

Soundproofing Clip

This clip has a rubber grommet which reduces the vibrations that can transfer from the existing wall to the new plasterboard. Used in conjunction with acoustic plasterboard and a layer or two of rubber, this system is far superior to a basic setup whereby the panels are fixed directly to the existing wall. Creating a partially detached wall in front of the existing wall is crucial if you want to reduce the noise from significant vibrations.

Prices For Wall Soundproofing Materials

30mm rubber and foam plasterboard panels cost around £50 per sq metre while a slightly thinner system costs around £40 per square metre (supply only).

The clip system, which includes a fixing bar, costs around £20 per square metre (supply only) but this price excludes the acoustic plasterboard, rubber/foam products and acoustic Rockwool.

The 5mm rubber sheet which is very heavy at over 10kg per square metre and costs around £18 per square metre to supply.

Rockwool, which can be placed in the void between the old and new plasterboards costs around £3-4 per square metre for this thickness.

The cost of sundries such as fixings, acoustic sealant, as well as the plaster skim and paint finish must also be considered.

Cost to Soundproof a Wall

Below you can find prices for the 3 soundproofing options offered to us:

  • 30mm foam/rubber backed high-density board, fixed directly to the wall.
  • As above but with the addition of a 5mm rubber layer.
  • The clip system which creates a partially detached wall directly in front of the existing wall.

Project 1 – Price Per Square Metre to Soundproof a Wall With 30mm Acoustic Board

This is a basic entry-level wall soundproofing system that minimises space loss but is still effective.

Here are the specifics of the project:

  • Secure 30mm of foam/rubber backed high-density plasterboard to the existing wall.
  • Seal all joints and edges with acoustic mastic.
  • Skim over the wall with plasterboard.

The prices below are an average of the prices given to us by the 8 soundproofing firms for our 15 square metre wall.

Item:Price Range:
30mm of foam/rubber backed high-density acoustic plasterboard and skim finish.£70 - £75 per square metre for a standard room.

Project 2 – 30mm Acoustic Plasterboard With 5mm Rubber Membrane

This system goes one step further and includes a 5mm dense but flexible rubber membrane. At over 10kg per square metre, this extra mass helps to block airborne sounds while the flexibility of the material dissipates vibrations.

The rubber is secured behind a 30mm rubber/foam high-density plasterboard.

This system measure only 35mm thick, and with the new plaster skim, you’ll lose no more than 42mm of space.

Choose this option if you’re prepared to pay extra but want to keep space loss to a minimum.

Item:Price Range:
30mm of foam/rubber backed high-density acoustic plasterboard and 6mm of extra flexible rubber and skim finish.£85 - £90 per square metre for a standard room.

Project 3 – Clip System

This wall soundproofing system’s cost is higher because the installer will be creating a wall that sits directly in front of the existing wall and is secured in place via clips.

Because the new wall is semi-detached from the original, vibration noise is significantly reduced, and the two layers of high-density plasterboard block airborne sound. A 5mm rubber membrane layer is sandwiched between the two plasterboards to add mass and flexibility to the system.

Acoustic insulation is placed in the void between the two plastered walls to prevent sound echoing and amplification.

This system’s space loss is around 75-95mm, including the new plaster skim finish.

Item:Price Range:
Clip and bar system with 2 acoustic panels and rubber membrane layer finished with plaster skim.£95 - £105 per square metre for a standard room.

Other Considerations

One issue with wall soundproofing is that of flanking noise.

A soundproofed wall is only as good as its weakest point, and if noises can flank the wall via a cavity, ceiling space or floor void, then the system won’t be as effective as it could be.

Consider filling the cavity in external walls with insulation as this absorbs the soundwaves. If possible, lift floorboards, fill any voids near the wall with acoustic insulation, and do the same in the loft if applicable to your project.

We have already discussed secondary glazing and how it’s very effective at blocking external noises from roads and traffic. In a nutshell, single-pane glass windows are the worst soundproofing option; double glazing is better, while double glazing and secondary glazing together provide the best protection from external noise.

If applicable, consider upgrading your front door. Acoustic soundproofed doors are very popular with homeowners who Iive near busy roads.

It’s quite rare for a consumer to need to soundproof an entire room, usually just one wall is enough but if you’re hearing unwanted noises from several neighbours, check out our guide to floor soundproofing prices here while our ceiling guide is here.

Options Listed From Worst to Best

Here is a list of the wall soundproofing options available:

  1. Extra regular plasterboard: This will block some airborne noise but virtually no vibrations and is the least effective option.
  2. Acoustic high-density plasterboard: This blocks much more airborne noise but stops very little of the vibrations.
  3. Two high-density plasterboards sandwiching a 5mm rubber membrane: This system is better as it helps block both vibrations and airborne noises.
  4. 30mm of acoustic plasterboard with a backing of 3mm rubber, 9mm of foam and another 3mm of rubber: The addition of foam helps block more vibrations.
  5. Clip system: This creates a new decoupled wall with few direct contact points with the original wall. The new acoustic plasterboard and rubber help to further block vibrations and also noises. This is the most popular wall soundproofing system but can be further enhanced with extra layers of acoustic high-density boards, rubber and foam as required.
  6. Build a new wall in front of the existing wall: This is the most expensive and least popular option. If you have space and funds, build an independent wall in front of the existing wall and fill the void with insulation. This isn’t a viable option for most people as the space loss will be huge and the cost inhibitive.
Acoustic plasterboard

More expensive than standard plasterboard and high-density plasterboard, this product blocks both vibrations and airborne noise and is the best cheap option available and is only 25-30mm thick.

Get a Fixed Price for Wall Soundproofing

We hope you found our wall soundproofing price guide insightful.

There are many options available to you, but we first recommend seeking advice from a professional who can suggest the best system for you.

To get started, tap the button below and fill out the contact form:

Wall Soundproofing

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Wall Soundproofing FAQs

When Were These Wall Soundproofing Prices Published?

We sourced prices for wall soundproofing in early 2021 and published this guide in early April 2021.

Can Walls be Soundproofed From The Outside?

Our wall soundproofing prices are for internal work only.

You may wish to consider wall rendering as this adds mass to the external wall and helps to block airborne noises.

Do These Prices Include VAT?

Most of the firms we contacted were VAT registered and charged VAT.

We’ve included VAT in our wall soundproofing price guide on this page when the firm charged it.

How Effective is Wall Soundproofing?

Provided the soundproofing contains a heavy mass to block airborne noises and flexible material to deaden vibrations, you should notice a drop in the number of noises coming through the wall.

If you have the space to install a new soundproofed wall decoupled from the original wall, then the results will be far better.

As a general rule of thumb, it’s easier to soundproof an internal wall as outside noise can come through the cavity and window glass as well as the window frame.

Check out our guide to cavity wall insulation and also our opinion on secondary glazing for soundproofing purposes, both are cheaper than wall soundproofing.

How Long Does it Take to Fit Wall Soundproofing?

It takes a team of two about one day to install 12-15 square metres of decoupled soundproofing via a clip system. 

Can These Products be Fitted DIY?

The acoustic soundproofing plasterboard panels are very easy to fit. Ensure a 5mm gap around the edge of the wall as the panels should not be in direct contact with the adjacent walls or ceiling. Then seal the perimeter and any gaps with acoustic sealant.

The installation of the clip system is a little more complex but still within a good DIYer or handyperson’s capabilities.

I Think Your Prices are Too High/Low, What Gives?

The wall soundproofing prices displayed on this page are an average of the quotes given to use by 8 specialist firms.

We do not doubt that handypersons, drywallers and plasterers could provide lower prices, and there are probably plenty of firms that would charge more than our average.

How much your system will cost depends on your needs and the best products for you. Some walls require several layers of acoustic plasterboard and sound insulation, while other need very little to achieve good results.

Our prices are meant as a guide, and as always, we recommend getting several quotes before you proceed with your wall soundproofing project.

Where Can I Get a Custom Soundproofing Price?

You can post details of your wall soundproofing project on Rated People, a site where tradespeople are vetted by staff and reviewed by their past customers.

Discover More Price Guides:

By Quotation Check

Floor Soundproofing

This is how much the experts told us t would cost to soundproof a floor. This system works both ways and will block noises from downstairs and stops noise travelling down to the room below. 

Ceiling Soundproofing

Soundproof your ceiling and you can protect yourself from unwanted footstep noise, grinding sounds from furniture movements, and airborne noise from TVs and conversations.

Cavity Wall Insulation

Cavity wall insulation doesn’t just keep the warm air in; it also blocks some external noise and prevents sounds from adjacent rooms or even neighbours from echoing and amplifying in the void.

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